{"transactions":[{"id":4623420,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-09-21T20:32:27.000Z","date":"2026-09-18","kind":"gift","planned":false,"acquired":false,"shares":936,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"source":{"system":"sec-edgar","filing":"0000891839-26-000410","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1809712/000089183926000410/form4.xml","form_type":"4"}},{"id":4623400,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-09-21T20:31:01.000Z","date":"2025-09-12","kind":"purchase","planned":false,"acquired":true,"shares":1200,"price":49.01,"value":58812.0,"ownership":{"direct":false,"nature":"By Family Trust"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This Form 4 amendment is being filed to correct the nature of ownership that was inadvertently reported as being directly owned in the prior Form 4. The reporting person and his spouse are co-trustees of the trust."}],"balance_after":1200,"source":{"system":"sec-edgar","filing":"0000891839-26-000409","document":"form4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1809712/000089183926000409/form4a.xml","form_type":"4/A","original_submission_date":"2025-09-15"}},{"id":2705,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-09-03T20:41:06.000Z","date":"2026-09-02","kind":"exercise","planned":false,"acquired":false,"shares":936,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis (\"RSUs\"), vested on 9/2/2026."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis (\"RSUs\"), vested on 9/2/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis (\"RSUs\"), vested on 9/2/2026."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":936},"source":{"system":"sec-edgar","filing":"0000891839-26-000388","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1809712/000089183926000388/form4.xml","form_type":"4"}},{"id":2704,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-09-03T20:41:06.000Z","date":"2026-09-02","kind":"exercise","planned":false,"acquired":true,"shares":936,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis (\"RSUs\"), vested on 9/2/2026."}],"balance_after":2136,"source":{"system":"sec-edgar","filing":"0000891839-26-000388","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1809712/000089183926000388/form4.xml","form_type":"4"}},{"id":691457,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":24853,"kind":"person","name":"Scholes Richard Alan","position":1,"cik":"0002149005","reported_name":"Scholes Richard Alan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Growth & Enblmnt Officer"}}],"security":"Restricted Stock Units","published_at":"2026-08-11T20:32:01.000Z","date":"2026-08-10","kind":"grant","planned":false,"acquired":true,"shares":1563,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 8/10/2027, 8/10/2028 and 8/10/2029."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 8/10/2027, 8/10/2028 and 8/10/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 8/10/2027, 8/10/2028 and 8/10/2029."}],"balance_after":1563,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1563},"source":{"system":"sec-edgar","filing":"0000891839-26-000351","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000351/form4.xml","form_type":"4"}},{"id":691456,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":24853,"kind":"person","name":"Scholes Richard Alan","position":1,"cik":"0002149005","reported_name":"Scholes Richard Alan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Growth & Enblmnt Officer"}}],"security":"Restricted Stock Units","published_at":"2026-08-11T20:32:01.000Z","date":"2026-08-10","kind":"grant","planned":false,"acquired":true,"shares":3678,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 8/10/2027, 8/10/2028 and 8/10/2029."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 8/10/2027, 8/10/2028 and 8/10/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 8/10/2027, 8/10/2028 and 8/10/2029."}],"balance_after":3678,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":3678},"source":{"system":"sec-edgar","filing":"0000891839-26-000351","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000351/form4.xml","form_type":"4"}},{"id":743919,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-06-10T20:30:59.000Z","date":"2026-06-08","kind":"tax_withholding","planned":false,"acquired":false,"shares":8095,"price":95.34,"value":771777.3,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of PSUs."}],"balance_after":374945,"source":{"system":"sec-edgar","filing":"0000891839-26-000244","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000244/form4.xml","form_type":"4"}},{"id":743918,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-06-10T20:30:59.000Z","date":"2026-06-08","kind":"grant","planned":false,"acquired":true,"shares":22101,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Thoren upon the vesting of performance-based restricted stock units (\"PSUs\") granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2026."}],"balance_after":383040,"source":{"system":"sec-edgar","filing":"0000891839-26-000244","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000244/form4.xml","form_type":"4"}},{"id":743916,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-06-10T20:30:30.000Z","date":"2026-06-08","kind":"tax_withholding","planned":false,"acquired":false,"shares":3193,"price":95.34,"value":304420.62,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of PSUs."}],"balance_after":35988,"source":{"system":"sec-edgar","filing":"0000891839-26-000243","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000243/form4.xml","form_type":"4"}},{"id":743915,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-06-10T20:30:30.000Z","date":"2026-06-08","kind":"grant","planned":false,"acquired":true,"shares":8619,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Thome upon the vesting of performance-based restricted stock units (\"PSUs\") granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2026."}],"balance_after":39181,"source":{"system":"sec-edgar","filing":"0000891839-26-000243","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000243/form4.xml","form_type":"4"}},{"id":743914,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-06-10T20:29:55.000Z","date":"2026-06-08","kind":"tax_withholding","planned":false,"acquired":false,"shares":2477,"price":95.34,"value":236157.18,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of PSUs."}],"balance_after":63629,"source":{"system":"sec-edgar","filing":"0000891839-26-000242","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000242/form4.xml","form_type":"4"}},{"id":743913,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-06-10T20:29:55.000Z","date":"2026-06-08","kind":"grant","planned":false,"acquired":true,"shares":8619,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Malone upon the vesting of performance-based restricted stock units (\"PSUs\") granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2026."}],"balance_after":66106,"source":{"system":"sec-edgar","filing":"0000891839-26-000242","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000242/form4.xml","form_type":"4"}},{"id":747187,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Units","published_at":"2026-06-08T20:32:07.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":false,"shares":5543,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Two-thirds of the original grant of these RSUs vested in substantially equal installments on each of 6/4/2025 and 6/4/2026, and except as otherwise provided in the award notice, the balance vests on 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Two-thirds of the original grant of these RSUs vested in substantially equal installments on each of 6/4/2025 and 6/4/2026, and except as otherwise provided in the award notice, the balance vests on 6/4/2027."}],"balance_after":5543,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":5543},"source":{"system":"sec-edgar","filing":"0000891839-26-000238","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000238/form4.xml","form_type":"4"}},{"id":747186,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-06-08T20:32:07.000Z","date":"2026-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":1593,"price":107.96,"value":171980.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":360939,"source":{"system":"sec-edgar","filing":"0000891839-26-000238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000238/form4.xml","form_type":"4"}},{"id":747185,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-06-08T20:32:07.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":true,"shares":5543,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":362532,"source":{"system":"sec-edgar","filing":"0000891839-26-000238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000238/form4.xml","form_type":"4"}},{"id":747182,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Restricted Stock Units","published_at":"2026-06-08T20:31:16.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":false,"shares":1643,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Two-thirds of the original grant of these RSUs vested in substantially equal installments on each of 6/4/2025 and 6/4/2026, and except as otherwise provided in the award notice, the balance vests on 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Two-thirds of the original grant of these RSUs vested in substantially equal installments on each of 6/4/2025 and 6/4/2026, and except as otherwise provided in the award notice, the balance vests on 6/4/2027."}],"balance_after":1644,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1643},"source":{"system":"sec-edgar","filing":"0000891839-26-000237","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000237/form4.xml","form_type":"4"}},{"id":747181,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-06-08T20:31:16.000Z","date":"2026-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":608,"price":107.96,"value":65639.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":30562,"source":{"system":"sec-edgar","filing":"0000891839-26-000237","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000237/form4.xml","form_type":"4"}},{"id":747180,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-06-08T20:31:16.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":true,"shares":1643,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":31170,"source":{"system":"sec-edgar","filing":"0000891839-26-000237","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000237/form4.xml","form_type":"4"}},{"id":747179,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-08T20:30:36.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":false,"shares":1291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Two-thirds of the original grant of these RSUs vested in substantially equal installments on each of 6/4/2025 and 6/4/2026, and except as otherwise provided in the award notice, the balance vests on 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Two-thirds of the original grant of these RSUs vested in substantially equal installments on each of 6/4/2025 and 6/4/2026, and except as otherwise provided in the award notice, the balance vests on 6/4/2027."}],"balance_after":1291,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1291},"source":{"system":"sec-edgar","filing":"0000891839-26-000236","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000236/form4.xml","form_type":"4"}},{"id":747178,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-06-08T20:30:36.000Z","date":"2026-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":371,"price":107.96,"value":40053.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":57487,"source":{"system":"sec-edgar","filing":"0000891839-26-000236","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000236/form4.xml","form_type":"4"}},{"id":747177,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-06-08T20:30:36.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":true,"shares":1291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":57858,"source":{"system":"sec-edgar","filing":"0000891839-26-000236","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000236/form4.xml","form_type":"4"}},{"id":753501,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":32391,"kind":"person","name":"Painter Jonathan W","position":1,"cik":"0001247567","reported_name":"Painter Jonathan W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:36:00.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000223","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000223/form4.xml","form_type":"4"}},{"id":753500,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":32391,"kind":"person","name":"Painter Jonathan W","position":1,"cik":"0001247567","reported_name":"Painter Jonathan W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:36:00.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0000891839-26-000223","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000223/form4.xml","form_type":"4"}},{"id":753499,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":32391,"kind":"person","name":"Painter Jonathan W","position":1,"cik":"0001247567","reported_name":"Painter Jonathan W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T20:36:00.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 11,283 vested restricted stock units that become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":34556,"source":{"system":"sec-edgar","filing":"0000891839-26-000223","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000223/form4.xml","form_type":"4"}},{"id":753497,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42130,"kind":"person","name":"Stoner Troy A.","position":1,"cik":"0001916970","reported_name":"Stoner Troy A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:35:25.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000222","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000222/form4.xml","form_type":"4"}},{"id":753496,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42130,"kind":"person","name":"Stoner Troy A.","position":1,"cik":"0001916970","reported_name":"Stoner Troy A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:35:25.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0000891839-26-000222","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000222/form4.xml","form_type":"4"}},{"id":753495,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42130,"kind":"person","name":"Stoner Troy A.","position":1,"cik":"0001916970","reported_name":"Stoner Troy A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T20:35:25.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 9,327 vested restricted stock units that become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":18623,"source":{"system":"sec-edgar","filing":"0000891839-26-000222","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000222/form4.xml","form_type":"4"}},{"id":753494,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42129,"kind":"person","name":"Schnorr Lisa M.","position":1,"cik":"0001615574","reported_name":"Schnorr Lisa M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:34:48.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000221","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000221/form4.xml","form_type":"4"}},{"id":753493,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42129,"kind":"person","name":"Schnorr Lisa M.","position":1,"cik":"0001615574","reported_name":"Schnorr Lisa M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:34:48.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0000891839-26-000221","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000221/form4.xml","form_type":"4"}},{"id":753492,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42129,"kind":"person","name":"Schnorr Lisa M.","position":1,"cik":"0001615574","reported_name":"Schnorr Lisa M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T20:34:48.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units vested on 6/2/2026 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 11,283 vested restricted stock units that become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":37867,"source":{"system":"sec-edgar","filing":"0000891839-26-000221","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000221/form4.xml","form_type":"4"}},{"id":753491,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:34:19.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000220","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000220/form4.xml","form_type":"4"}},{"id":753490,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":20314,"kind":"person","name":"Barber James J","position":1,"cik":"0001377811","reported_name":"Barber James J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:33:50.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000219","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000219/form4.xml","form_type":"4"}},{"id":753489,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":20314,"kind":"person","name":"Barber James J","position":1,"cik":"0001377811","reported_name":"Barber James J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:33:50.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0000891839-26-000219","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000219/form4.xml","form_type":"4"}},{"id":753488,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":20314,"kind":"person","name":"Barber James J","position":1,"cik":"0001377811","reported_name":"Barber James J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T20:33:50.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."}],"balance_after":55791,"source":{"system":"sec-edgar","filing":"0000891839-26-000219","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000219/form4.xml","form_type":"4"}},{"id":753487,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42128,"kind":"person","name":"Jaroslawsky Cari L","position":1,"cik":"0001336522","reported_name":"Jaroslawsky Cari L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:33:18.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/1/2027."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000218","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000218/form4.xml","form_type":"4"}},{"id":753486,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42128,"kind":"person","name":"Jaroslawsky Cari L","position":1,"cik":"0001336522","reported_name":"Jaroslawsky Cari L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:33:18.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0000891839-26-000218","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000218/form4.xml","form_type":"4"}},{"id":753485,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42128,"kind":"person","name":"Jaroslawsky Cari L","position":1,"cik":"0001336522","reported_name":"Jaroslawsky Cari L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T20:33:18.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units, which vested on 6/2/2026, converted into common stock on a one-for-one basis."}],"balance_after":18623,"source":{"system":"sec-edgar","filing":"0000891839-26-000218","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000218/form4.xml","form_type":"4"}},{"id":753484,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42127,"kind":"person","name":"Gross Matthew Lee","position":1,"cik":"0002110041","reported_name":"Gross Matthew Lee","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Flacktek"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:32:37.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."}],"balance_after":905,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":905},"source":{"system":"sec-edgar","filing":"0000891839-26-000217","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000217/form4.xml","form_type":"4"}},{"id":753483,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42126,"kind":"person","name":"Zmyndak William H.","position":1,"cik":"0002126592","reported_name":"Zmyndak William H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM Graham Manufacturing"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:32:20.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":1026,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."}],"balance_after":1026,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1026},"source":{"system":"sec-edgar","filing":"0000891839-26-000216","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000216/form4.xml","form_type":"4"}},{"id":753482,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:31:56.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":6036,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."}],"balance_after":6036,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":6036},"source":{"system":"sec-edgar","filing":"0000891839-26-000215","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000215/form4.xml","form_type":"4"}},{"id":753481,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:31:56.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":2540,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."}],"balance_after":5082,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2540},"source":{"system":"sec-edgar","filing":"0000891839-26-000215","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000215/form4.xml","form_type":"4"}},{"id":753480,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-06-03T20:31:56.000Z","date":"2026-06-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":730,"price":106.11,"value":77460.3,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":56567,"source":{"system":"sec-edgar","filing":"0000891839-26-000215","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000215/form4.xml","form_type":"4"}},{"id":753479,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-06-03T20:31:56.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":2540,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":57297,"source":{"system":"sec-edgar","filing":"0000891839-26-000215","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000215/form4.xml","form_type":"4"}},{"id":753478,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:31:39.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":966,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."}],"balance_after":966,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":966},"source":{"system":"sec-edgar","filing":"0000891839-26-000214","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000214/form4.xml","form_type":"4"}},{"id":753477,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:31:39.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":762,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."}],"balance_after":1525,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":762},"source":{"system":"sec-edgar","filing":"0000891839-26-000214","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000214/form4.xml","form_type":"4"}},{"id":753476,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Common Stock","published_at":"2026-06-03T20:31:39.000Z","date":"2026-06-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":235,"price":106.11,"value":24935.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":1263,"source":{"system":"sec-edgar","filing":"0000891839-26-000214","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000214/form4.xml","form_type":"4"}},{"id":753475,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Common Stock","published_at":"2026-06-03T20:31:39.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":762,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":1498,"source":{"system":"sec-edgar","filing":"0000891839-26-000214","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000214/form4.xml","form_type":"4"}},{"id":753474,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:31:03.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":629,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."}],"balance_after":629,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":629},"source":{"system":"sec-edgar","filing":"0000891839-26-000213","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000213/form4.xml","form_type":"4"}},{"id":753473,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:31:03.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":529,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."}],"balance_after":1059,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":529},"source":{"system":"sec-edgar","filing":"0000891839-26-000213","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000213/form4.xml","form_type":"4"}},{"id":753472,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-06-03T20:31:03.000Z","date":"2026-06-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":152,"price":106.11,"value":16128.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":356989,"source":{"system":"sec-edgar","filing":"0000891839-26-000213","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000213/form4.xml","form_type":"4"}},{"id":753471,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-06-03T20:31:03.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":529,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":357141,"source":{"system":"sec-edgar","filing":"0000891839-26-000213","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000213/form4.xml","form_type":"4"}},{"id":753470,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:30:44.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":1408,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"These RSUs were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest one-third on each of 6/1/2027, 6/1/2028 and 6/1/2029."}],"balance_after":1408,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1408},"source":{"system":"sec-edgar","filing":"0000891839-26-000212","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000212/form4.xml","form_type":"4"}},{"id":753469,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Restricted Stock Units","published_at":"2026-06-03T20:30:44.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":false,"shares":1099,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these RSUs vested on 6/2/2026, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/2/2027 and 6/2/2028."}],"balance_after":2200,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1099},"source":{"system":"sec-edgar","filing":"0000891839-26-000212","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000212/form4.xml","form_type":"4"}},{"id":753468,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-06-03T20:30:44.000Z","date":"2026-06-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":407,"price":106.11,"value":43186.77,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":29527,"source":{"system":"sec-edgar","filing":"0000891839-26-000212","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000212/form4.xml","form_type":"4"}},{"id":753467,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-06-03T20:30:44.000Z","date":"2026-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1099,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":29934,"source":{"system":"sec-edgar","filing":"0000891839-26-000212","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000212/form4.xml","form_type":"4"}},{"id":776200,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Restricted Stock Units","published_at":"2026-05-18T20:30:56.000Z","date":"2026-05-17","kind":"exercise","planned":false,"acquired":false,"shares":2375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These RSUs vested on 5/17/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These RSUs vested on 5/17/2026."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2375},"source":{"system":"sec-edgar","filing":"0000891839-26-000169","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000169/form4.xml","form_type":"4"}},{"id":776199,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T20:30:56.000Z","date":"2026-05-17","kind":"tax_withholding","planned":false,"acquired":false,"shares":682,"price":98.28,"value":67026.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":54757,"source":{"system":"sec-edgar","filing":"0000891839-26-000169","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000169/form4.xml","form_type":"4"}},{"id":776198,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T20:30:56.000Z","date":"2026-05-17","kind":"exercise","planned":false,"acquired":true,"shares":2375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":55439,"source":{"system":"sec-edgar","filing":"0000891839-26-000169","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000169/form4.xml","form_type":"4"}},{"id":776197,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Restricted Stock Units","published_at":"2026-05-18T20:30:31.000Z","date":"2026-05-17","kind":"exercise","planned":false,"acquired":false,"shares":2375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These RSUs vested on 5/17/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These RSUs vested on 5/17/2026."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2375},"source":{"system":"sec-edgar","filing":"0000891839-26-000168","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000168/form4.xml","form_type":"4"}},{"id":776196,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-05-18T20:30:31.000Z","date":"2026-05-17","kind":"tax_withholding","planned":false,"acquired":false,"shares":900,"price":98.28,"value":88452.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":28835,"source":{"system":"sec-edgar","filing":"0000891839-26-000168","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000168/form4.xml","form_type":"4"}},{"id":776195,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2026-05-18T20:30:31.000Z","date":"2026-05-17","kind":"exercise","planned":false,"acquired":true,"shares":2375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."}],"balance_after":29735,"source":{"system":"sec-edgar","filing":"0000891839-26-000168","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000168/form4.xml","form_type":"4"}},{"id":776194,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Restricted Stock Units","published_at":"2026-05-18T20:30:12.000Z","date":"2026-05-17","kind":"exercise","planned":false,"acquired":false,"shares":6089,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These RSUs vested on 5/17/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"These RSUs vested on 5/17/2026."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":6089},"source":{"system":"sec-edgar","filing":"0000891839-26-000167","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000167/form4.xml","form_type":"4"}},{"id":776193,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-05-18T20:30:12.000Z","date":"2026-05-17","kind":"tax_withholding","planned":false,"acquired":false,"shares":1800,"price":98.28,"value":176904.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":356612,"source":{"system":"sec-edgar","filing":"0000891839-26-000167","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000167/form4.xml","form_type":"4"}},{"id":776192,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-05-18T20:30:12.000Z","date":"2026-05-17","kind":"exercise","planned":false,"acquired":true,"shares":6089,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 540 shares acquired under the Graham Corporation Employee Stock Purchase Plan."}],"balance_after":358412,"source":{"system":"sec-edgar","filing":"0000891839-26-000167","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000167/form4.xml","form_type":"4"}},{"id":828794,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Restricted Stock Units","published_at":"2026-03-25T20:30:54.000Z","date":"2026-02-04","kind":"exercise","planned":false,"acquired":false,"shares":355,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\"). 355 RSUs vested on 2/4/2026 and the remaining RSUs will vest in substantially equal installments on each of 2/4/2027 and 2/4/2028."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\"). 355 RSUs vested on 2/4/2026 and the remaining RSUs will vest in substantially equal installments on each of 2/4/2027 and 2/4/2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\"). 355 RSUs vested on 2/4/2026 and the remaining RSUs will vest in substantially equal installments on each of 2/4/2027 and 2/4/2028."}],"balance_after":711,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":355},"source":{"system":"sec-edgar","filing":"0000891839-26-000105","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000105/form4.xml","form_type":"4"}},{"id":828793,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Common Stock","published_at":"2026-03-25T20:30:54.000Z","date":"2026-02-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":120,"price":73.19,"value":8782.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld to cover tax withholding obligations upon the vesting of RSUs."}],"balance_after":736,"source":{"system":"sec-edgar","filing":"0000891839-26-000105","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000105/form4.xml","form_type":"4"}},{"id":828792,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42125,"kind":"person","name":"Dixon Michael E.","position":1,"cik":"0002071321","reported_name":"Dixon Michael E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & GM of Barber-Nichols"}}],"security":"Common Stock","published_at":"2026-03-25T20:30:54.000Z","date":"2026-02-04","kind":"exercise","planned":false,"acquired":true,"shares":355,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis (\"RSUs\"). 355 RSUs vested on 2/4/2026 and the remaining RSUs will vest in substantially equal installments on each of 2/4/2027 and 2/4/2028."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 34 shares acquired under the Graham Corporation Employee Stock Purchase Plan."}],"balance_after":856,"source":{"system":"sec-edgar","filing":"0000891839-26-000105","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183926000105/form4.xml","form_type":"4"}},{"id":1041042,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-09-15T20:26:30.000Z","date":"2025-09-12","kind":"purchase","planned":false,"acquired":true,"shares":1200,"price":49.01,"value":58812.0,"ownership":{"direct":true},"balance_after":1200,"source":{"system":"sec-edgar","filing":"0000891839-25-000050","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183925000050/form4.xml","form_type":"4"}},{"id":1050843,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":1961,"kind":"person","name":"Gregorio Mauro","position":1,"cik":"0001809712","reported_name":"Gregorio Mauro","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-09-03T20:32:45.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":936,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 9/2/2026."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 9/2/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 9/2/2026."}],"balance_after":936,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":936},"source":{"system":"sec-edgar","filing":"0000891839-25-000038","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000089183925000038/form4.xml","form_type":"4"}},{"id":1115780,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2025-06-11T20:31:00.000Z","date":"2025-06-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":7394,"price":44.66,"value":330216.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of performance-based restricted stock units."}],"balance_after":351783,"source":{"system":"sec-edgar","filing":"0001062993-25-011408","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011408/form4.xml","form_type":"4"}},{"id":1115779,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Chairman"}}],"security":"Common Stock","published_at":"2025-06-11T20:31:00.000Z","date":"2025-06-09","kind":"grant","planned":false,"acquired":true,"shares":20513,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Thoren upon the vesting of performance-based restricted stock units granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2025."}],"balance_after":359177,"source":{"system":"sec-edgar","filing":"0001062993-25-011408","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011408/form4.xml","form_type":"4"}},{"id":1115778,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-06-11T20:30:33.000Z","date":"2025-06-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":2211,"price":44.66,"value":98743.26,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of performance-based restricted stock units."}],"balance_after":53064,"source":{"system":"sec-edgar","filing":"0001062993-25-011407","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011407/form4.xml","form_type":"4"}},{"id":1115777,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-06-11T20:30:33.000Z","date":"2025-06-09","kind":"grant","planned":false,"acquired":true,"shares":7693,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Malone upon the vesting of performance-based restricted stock units granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2025."}],"balance_after":55275,"source":{"system":"sec-edgar","filing":"0001062993-25-011407","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011407/form4.xml","form_type":"4"}},{"id":1115776,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2025-06-11T20:30:14.000Z","date":"2025-06-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":2680,"price":44.66,"value":119688.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of performance-based restricted stock units."}],"balance_after":27360,"source":{"system":"sec-edgar","filing":"0001062993-25-011406","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011406/form4.xml","form_type":"4"}},{"id":1115775,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2025-06-11T20:30:14.000Z","date":"2025-06-09","kind":"grant","planned":false,"acquired":true,"shares":7436,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Thome upon the vesting of performance-based restricted stock units granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2025."}],"balance_after":30040,"source":{"system":"sec-edgar","filing":"0001062993-25-011406","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011406/form4.xml","form_type":"4"}},{"id":1115774,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":78653,"kind":"person","name":"Smith Alan E","position":1,"cik":"0001408288","reported_name":"Smith Alan E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & General Manager - Batavia"}}],"security":"Common Stock","published_at":"2025-06-11T20:29:43.000Z","date":"2025-06-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":3619,"price":44.66,"value":161624.54,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of performance-based restricted stock units."}],"balance_after":66634,"source":{"system":"sec-edgar","filing":"0001062993-25-011405","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011405/form4.xml","form_type":"4"}},{"id":1115773,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":78653,"kind":"person","name":"Smith Alan E","position":1,"cik":"0001408288","reported_name":"Smith Alan E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & General Manager - Batavia"}}],"security":"Common Stock","published_at":"2025-06-11T20:29:43.000Z","date":"2025-06-09","kind":"grant","planned":false,"acquired":true,"shares":7693,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to Mr. Smith upon the vesting of performance-based restricted stock units granted to him under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3. The shares underlying this award vested after three years based on the Company's achievement on certain pre-determined performance measures over the eligible three-year period that ended on 3/31/2025."}],"balance_after":70253,"source":{"system":"sec-edgar","filing":"0001062993-25-011405","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011405/form4.xml","form_type":"4"}},{"id":1122148,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Restricted Stock Units","published_at":"2025-06-05T21:56:18.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":5542,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."}],"balance_after":11086,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":5542},"source":{"system":"sec-edgar","filing":"0001062993-25-011068","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011068/form4.xml","form_type":"4"}},{"id":1122147,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-06-05T21:56:18.000Z","date":"2025-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":1997,"price":40.89,"value":81657.33,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of restricted stock units."}],"balance_after":338664,"source":{"system":"sec-edgar","filing":"0001062993-25-011068","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011068/form4.xml","form_type":"4"}},{"id":1122146,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39872,"kind":"person","name":"Thoren Daniel J.","position":1,"cik":"0001864850","reported_name":"Thoren Daniel J.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-06-05T21:56:18.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":5542,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."}],"balance_after":340661,"source":{"system":"sec-edgar","filing":"0001062993-25-011068","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011068/form4.xml","form_type":"4"}},{"id":1122145,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":78653,"kind":"person","name":"Smith Alan E","position":1,"cik":"0001408288","reported_name":"Smith Alan E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & General Manager - Batavia"}}],"security":"Restricted Stock Units","published_at":"2025-06-05T21:55:40.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":1291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."}],"balance_after":2582,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1291},"source":{"system":"sec-edgar","filing":"0001062993-25-011069","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011069/form4.xml","form_type":"4"}},{"id":1122144,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":78653,"kind":"person","name":"Smith Alan E","position":1,"cik":"0001408288","reported_name":"Smith Alan E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & General Manager - Batavia"}}],"security":"Common Stock","published_at":"2025-06-05T21:55:40.000Z","date":"2025-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":607,"price":40.89,"value":24820.23,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of restricted stock units."}],"balance_after":62560,"source":{"system":"sec-edgar","filing":"0001062993-25-011069","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011069/form4.xml","form_type":"4"}},{"id":1122143,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":78653,"kind":"person","name":"Smith Alan E","position":1,"cik":"0001408288","reported_name":"Smith Alan E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & General Manager - Batavia"}}],"security":"Common Stock","published_at":"2025-06-05T21:55:40.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":1291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."}],"balance_after":63167,"source":{"system":"sec-edgar","filing":"0001062993-25-011069","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011069/form4.xml","form_type":"4"}},{"id":1122142,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Restricted Stock Units","published_at":"2025-06-05T21:55:32.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":1643,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."}],"balance_after":3287,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1643},"source":{"system":"sec-edgar","filing":"0001062993-25-011067","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011067/form4.xml","form_type":"4"}},{"id":1122141,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2025-06-05T21:55:32.000Z","date":"2025-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":592,"price":40.89,"value":24206.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of restricted stock units."}],"balance_after":22604,"source":{"system":"sec-edgar","filing":"0001062993-25-011067","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011067/form4.xml","form_type":"4"}},{"id":1122140,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39870,"kind":"person","name":"Thome Christopher J.","position":1,"cik":"0001917893","reported_name":"Thome Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP-Finance; CFO"}}],"security":"Common Stock","published_at":"2025-06-05T21:55:32.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":1643,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."}],"balance_after":23196,"source":{"system":"sec-edgar","filing":"0001062993-25-011067","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011067/form4.xml","form_type":"4"}},{"id":1122138,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Restricted Stock Units","published_at":"2025-06-05T21:54:44.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":1291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"One-third of the original grant of these restricted stock units vested on 6/4/2025, and except as otherwise provided in the award notice, the balance vests in substantially equal installments on 6/4/2026 and 6/4/2027."}],"balance_after":2582,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1291},"source":{"system":"sec-edgar","filing":"0001062993-25-011066","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011066/form4.xml","form_type":"4"}},{"id":1122137,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2025-06-05T21:54:44.000Z","date":"2025-06-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":371,"price":40.89,"value":15170.19,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld to cover tax withholding obligations upon the vesting of restricted stock units."}],"balance_after":47582,"source":{"system":"sec-edgar","filing":"0001062993-25-011066","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011066/form4.xml","form_type":"4"}},{"id":1122136,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":39869,"kind":"person","name":"Malone Matthew","position":1,"cik":"0001864755","reported_name":"Malone Matthew","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2025-06-05T21:54:44.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":1291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units convert into common stock on a one-for-one basis."}],"balance_after":47953,"source":{"system":"sec-edgar","filing":"0001062993-25-011066","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325011066/form4.xml","form_type":"4"}},{"id":1123884,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42130,"kind":"person","name":"Stoner Troy A.","position":1,"cik":"0001916970","reported_name":"Stoner Troy A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:29:25.000Z","date":"2025-06-02","kind":"grant","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026."}],"balance_after":1956,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0001062993-25-010997","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010997/form4.xml","form_type":"4"}},{"id":1123883,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42130,"kind":"person","name":"Stoner Troy A.","position":1,"cik":"0001916970","reported_name":"Stoner Troy A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:29:25.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2934},"source":{"system":"sec-edgar","filing":"0001062993-25-010997","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010997/form4.xml","form_type":"4"}},{"id":1123882,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42130,"kind":"person","name":"Stoner Troy A.","position":1,"cik":"0001916970","reported_name":"Stoner Troy A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-04T20:29:25.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 9,327 vested restricted stock units that become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":16667,"source":{"system":"sec-edgar","filing":"0001062993-25-010997","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010997/form4.xml","form_type":"4"}},{"id":1123881,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42129,"kind":"person","name":"Schnorr Lisa M.","position":1,"cik":"0001615574","reported_name":"Schnorr Lisa M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:28:38.000Z","date":"2025-06-02","kind":"grant","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026 and become payable in common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026 and become payable in common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026 and become payable in common stock upon separation of the Reporting Person's service as a director."}],"balance_after":1956,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0001062993-25-010995","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010995/form4.xml","form_type":"4"}},{"id":1123880,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42129,"kind":"person","name":"Schnorr Lisa M.","position":1,"cik":"0001615574","reported_name":"Schnorr Lisa M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:28:38.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2934},"source":{"system":"sec-edgar","filing":"0001062993-25-010995","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010995/form4.xml","form_type":"4"}},{"id":1123879,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42129,"kind":"person","name":"Schnorr Lisa M.","position":1,"cik":"0001615574","reported_name":"Schnorr Lisa M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-04T20:28:38.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 9,327 vested restricted stock units that become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":35911,"source":{"system":"sec-edgar","filing":"0001062993-25-010995","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010995/form4.xml","form_type":"4"}},{"id":1123878,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":32391,"kind":"person","name":"Painter Jonathan W","position":1,"cik":"0001247567","reported_name":"Painter Jonathan W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:28:04.000Z","date":"2025-06-02","kind":"grant","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026 and become payable in common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026 and become payable in common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026 and become payable in common stock upon separation of the Reporting Person's service as a director."}],"balance_after":1956,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0001062993-25-010994","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010994/form4.xml","form_type":"4"}},{"id":1123877,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":32391,"kind":"person","name":"Painter Jonathan W","position":1,"cik":"0001247567","reported_name":"Painter Jonathan W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:28:04.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2934},"source":{"system":"sec-edgar","filing":"0001062993-25-010994","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010994/form4.xml","form_type":"4"}},{"id":1123876,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":32391,"kind":"person","name":"Painter Jonathan W","position":1,"cik":"0001247567","reported_name":"Painter Jonathan W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-04T20:28:04.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":true,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These restricted stock units vested on 6/4/2025 and become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 9,327 vested restricted stock units that become payable, on a one-for-one basis, in shares of the Issuer's common stock upon separation of the Reporting Person's service as a director."}],"balance_after":32600,"source":{"system":"sec-edgar","filing":"0001062993-25-010994","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010994/form4.xml","form_type":"4"}},{"id":1123875,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42128,"kind":"person","name":"Jaroslawsky Cari L","position":1,"cik":"0001336522","reported_name":"Jaroslawsky Cari L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:27:21.000Z","date":"2025-06-02","kind":"grant","planned":false,"acquired":true,"shares":1956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"These restricted stock units, which convert into common stock on a one-for-one basis, were granted under the 2020 Graham Corporation Equity Incentive Plan in a transaction exempt under Rule 16b-3 and, except as otherwise provided in the award notice, vest on 6/2/2026."}],"balance_after":1956,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1956},"source":{"system":"sec-edgar","filing":"0001062993-25-010992","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010992/form4.xml","form_type":"4"}},{"id":1123874,"issuer":{"id":1960,"kind":"organization","name":"GRAHAM CORP","symbol":"GHM"},"owners":[{"id":42128,"kind":"person","name":"Jaroslawsky Cari L","position":1,"cik":"0001336522","reported_name":"Jaroslawsky Cari L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-04T20:27:21.000Z","date":"2025-06-04","kind":"exercise","planned":false,"acquired":false,"shares":2934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These restricted stock units, which vested on 6/4/2025, converted into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These restricted stock units, which vested on 6/4/2025, converted into common stock on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These restricted stock units, which vested on 6/4/2025, converted into common stock on a one-for-one basis."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2934},"source":{"system":"sec-edgar","filing":"0001062993-25-010992","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/716314/000106299325010992/form4.xml","form_type":"4"}}],"next_cursor":"2025-06-04T20:27:21.000000Z,1123874"}