{"transactions":[{"id":834188,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Stock Option","published_at":"2026-03-19T19:39:00.000Z","date":"2026-03-17","kind":"grant","planned":false,"acquired":true,"shares":4871,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option vests ratably on March 17, 2027, 2028, 2029, 2030, and 2031."}],"balance_after":4871,"derivative":{"exercise_price":56.64,"expiration_date":"2036-03-17","underlying":"Common Stock","underlying_shares":4871},"source":{"system":"sec-edgar","filing":"0000723188-26-000072","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/723188/000072318826000072/form4.xml","form_type":"4"}},{"id":834187,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Restricted Stock Units","published_at":"2026-03-19T19:39:00.000Z","date":"2026-03-17","kind":"grant","planned":false,"acquired":true,"shares":1275,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive on share of Community Financial System, Inc. common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units vest in three equal installments beginning March 1, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units vest in three equal installments beginning March 1, 2027."}],"balance_after":1275,"derivative":{"underlying":"Common Stock","underlying_shares":1275},"source":{"system":"sec-edgar","filing":"0000723188-26-000072","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/723188/000072318826000072/form4.xml","form_type":"4"}},{"id":857311,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2026-03-06T18:50:58.000Z","date":"2026-03-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":943.0628,"price":59.87,"value":56461.169836,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Payment of tax liability associated with vesting of restricted stock awards."}],"balance_after":6647,"source":{"system":"sec-edgar","filing":"0000723188-26-000040","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/723188/000072318826000040/form4.xml","form_type":"4"}},{"id":857310,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2026-03-06T18:50:58.000Z","date":"2026-03-04","kind":"grant","planned":false,"acquired":true,"shares":2562.0628,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 4, 2026, the Compensation Committee approved the vesting of the three-year performance-based restricted stock award, granted to the reporting person in 2023, based on achievement of predetermined performance criteria at the target level.  The reporting person received 2,304 shares of common stock under the award and 258.0628 shares of common stock acquired under the dividend reinvestment feature of the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the \"Plan\")."}],"balance_after":7590.0628,"source":{"system":"sec-edgar","filing":"0000723188-26-000040","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000072318826000040/form4.xml","form_type":"4"}},{"id":863918,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2026-03-04T17:13:06.000Z","date":"2026-03-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":522,"price":60.55,"value":31607.1,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of restricted stock awards."}],"balance_after":5028,"source":{"system":"sec-edgar","filing":"0000723188-26-000038","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000072318826000038/form4.xml","form_type":"4"}},{"id":863916,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2026-03-04T17:09:56.000Z","date":"2025-12-29","kind":"sale","planned":false,"acquired":false,"shares":3450.3591,"price":58.85,"value":203053.633035,"ownership":{"direct":false,"nature":"By 401(k) Plan"},"balance_after":0,"source":{"system":"sec-edgar","filing":"0000723188-26-000036","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000072318826000036/form4.xml","form_type":"4"}},{"id":1197889,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Stock Option","published_at":"2025-03-19T21:56:02.000Z","date":"2025-03-18","kind":"grant","planned":false,"acquired":true,"shares":4553,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"This amendment is filed to correct the number of stock options acquired. The correct number is 4,553 shares."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option vests ratably on March 18, 2026, 2027, 2028, 2029, and 2030."}],"balance_after":4553,"derivative":{"exercise_price":58.1,"expiration_date":"2035-03-18","underlying":"Common Stock","underlying_shares":4553},"source":{"system":"sec-edgar","filing":"0001127602-25-010039","document":"form4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225010039/form4a.xml","form_type":"4/A","original_submission_date":"2025-03-19"}},{"id":1197888,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2025-03-19T21:56:02.000Z","date":"2025-03-18","kind":"grant","planned":false,"acquired":true,"shares":1233,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This amendment is filed to correct the number of shares of restricted stock acquired.  The correct number is 1,233 shares."}],"balance_after":5550,"source":{"system":"sec-edgar","filing":"0001127602-25-010039","document":"form4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225010039/form4a.xml","form_type":"4/A","original_submission_date":"2025-03-19"}},{"id":1197885,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Stock Option","published_at":"2025-03-19T21:23:41.000Z","date":"2025-03-18","kind":"grant","planned":false,"acquired":true,"shares":1233,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests ratably on March 18, 2026, 2027, 2028, 2029, and 2030."}],"balance_after":1233,"derivative":{"exercise_price":58.1,"expiration_date":"2035-03-18","underlying":"Common Stock","underlying_shares":1233},"source":{"system":"sec-edgar","filing":"0001127602-25-010011","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225010011/form4.xml","form_type":"4"}},{"id":1197884,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2025-03-19T21:23:41.000Z","date":"2025-03-18","kind":"grant","planned":false,"acquired":true,"shares":4553,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":8870,"source":{"system":"sec-edgar","filing":"0001127602-25-010011","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225010011/form4.xml","form_type":"4"}},{"id":1208685,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2025-03-13T21:00:40.000Z","date":"2025-03-12","kind":"tax_withholding","planned":false,"acquired":false,"shares":532.1799,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of performance stock award."}],"balance_after":4317,"source":{"system":"sec-edgar","filing":"0001127602-25-009370","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225009370/form4.xml","form_type":"4"}},{"id":1213927,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2025-03-11T17:46:00.000Z","date":"2025-03-07","kind":"grant","planned":false,"acquired":true,"shares":1472.1799,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 7, 2025, the Compensation Committee approved the vesting of the three-year performance-based restricted stock award, granted to the reporting person in 2022, based on achievement of predetermined performance criteria at the target level.  The reporting person received 1,332 shares of common stock under the award and 140.1799 shares of common stock acquired under the dividend reinvestment feature of the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the \"Plan\")."}],"balance_after":4849.1799,"source":{"system":"sec-edgar","filing":"0001127602-25-009004","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225009004/form4.xml","form_type":"4"}},{"id":1233629,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Admin & HR Officer"}}],"security":"Common Stock","published_at":"2025-03-04T17:43:03.000Z","date":"2025-03-03","kind":"tax_withholding","planned":false,"acquired":false,"shares":444,"price":63.29,"value":28100.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of restricted stock awards."}],"balance_after":3377,"source":{"system":"sec-edgar","filing":"0001127602-25-007689","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760225007689/form4.xml","form_type":"4"}},{"id":1393229,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2024-10-03T15:45:23.000Z","date":"2024-10-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":177,"price":58.07,"value":10278.39,"ownership":{"direct":true},"balance_after":3821,"source":{"system":"sec-edgar","filing":"0001127602-24-025015","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760224025015/form4.xml","form_type":"4"}},{"id":1566618,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Stock Option","published_at":"2024-03-20T15:19:22.000Z","date":"2024-03-19","kind":"grant","planned":false,"acquired":true,"shares":4987,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests ratably on March 19, 2025, 2026, 2027, 2028, and 2029."}],"balance_after":4987,"derivative":{"exercise_price":44.27,"expiration_date":"2034-03-19","underlying":"Common Stock","underlying_shares":4987},"source":{"system":"sec-edgar","filing":"0001127602-24-010739","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760224010739/form4.xml","form_type":"4"}},{"id":1566617,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2024-03-20T15:19:22.000Z","date":"2024-03-19","kind":"grant","planned":false,"acquired":true,"shares":1391,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":3998,"source":{"system":"sec-edgar","filing":"0001127602-24-010739","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760224010739/form4.xml","form_type":"4"}},{"id":1600888,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2024-03-05T20:38:12.000Z","date":"2024-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":218,"price":45.3,"value":9875.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of restricted stock awards."}],"balance_after":2607,"source":{"system":"sec-edgar","filing":"0001127602-24-008482","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760224008482/form4.xml","form_type":"4"}},{"id":1771154,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2023-10-02T19:12:27.000Z","date":"2023-10-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":176,"price":42.21,"value":7428.96,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of restricted stock award."}],"balance_after":2825,"source":{"system":"sec-edgar","filing":"0001127602-23-024945","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760223024945/form4.xml","form_type":"4"}},{"id":1953049,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Stock Option","published_at":"2023-03-15T16:32:53.000Z","date":"2023-03-14","kind":"grant","acquired":true,"shares":4199,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests ratably on March 14, 2024, 2025, 2026, 2027, and 2028."}],"balance_after":4199,"derivative":{"exercise_price":54.06,"expiration_date":"2033-03-14","underlying":"Common Stock","underlying_shares":4199},"source":{"system":"sec-edgar","filing":"0001127602-23-010256","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760223010256/form4.xml","form_type":"4"}},{"id":1953048,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2023-03-15T16:32:53.000Z","date":"2023-03-14","kind":"grant","acquired":true,"shares":1152,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":3001,"source":{"system":"sec-edgar","filing":"0001127602-23-010256","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760223010256/form4.xml","form_type":"4"}},{"id":1953047,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Stock Option","published_at":"2023-03-15T16:13:20.000Z","date":"2022-03-15","kind":"grant","acquired":true,"shares":2676,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"This amendment is filed to correct the exercise price of the stock option which was originally reported as $72.51.  The correct exercise price is $71.78 as set forth in this amendment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests ratably on March 15, 2023, 2024, 2025, 2026, and 2027."}],"balance_after":2676,"derivative":{"exercise_price":71.78,"expiration_date":"2032-03-15","underlying":"Common Stock","underlying_shares":2676},"source":{"system":"sec-edgar","filing":"0001127602-23-010254","document":"form4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760223010254/form4a.xml","form_type":"4/A","original_submission_date":"2022-03-16"}},{"id":1962101,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2023-03-09T19:18:03.000Z","date":"2023-03-08","kind":"tax_withholding","acquired":false,"shares":81,"price":61.05,"value":4945.05,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of restricted stock award."}],"balance_after":1849,"source":{"system":"sec-edgar","filing":"0001127602-23-009549","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760223009549/form4.xml","form_type":"4"}},{"id":2138689,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2022-10-12T19:59:51.000Z","date":"2022-10-03","kind":"tax_withholding","acquired":false,"shares":203,"price":60.08,"value":12196.24,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Payment of tax liability associated with vesting of restricted stock award."}],"balance_after":1930,"source":{"system":"sec-edgar","filing":"0001127602-22-023884","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760222023884/form4.xml","form_type":"4"}},{"id":2332171,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Stock Option","published_at":"2022-03-16T21:19:15.000Z","date":"2022-03-15","kind":"grant","acquired":true,"shares":2676,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests ratably on March 15, 2023, 2024, 2025, 2026, and 2027."}],"balance_after":2676,"derivative":{"exercise_price":72.51,"expiration_date":"2032-03-15","underlying":"Common Stock","underlying_shares":2676},"source":{"system":"sec-edgar","filing":"0001127602-22-009504","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760222009504/form4.xml","form_type":"4"}},{"id":2332170,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2022-03-16T21:19:15.000Z","date":"2022-03-15","kind":"grant","acquired":true,"shares":666,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":2133,"source":{"system":"sec-edgar","filing":"0001127602-22-009504","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760222009504/form4.xml","form_type":"4"}},{"id":2550668,"issuer":{"id":4178,"kind":"organization","name":"COMMUNITY FINANCIAL SYSTEM, INC.","symbol":"CBU"},"owners":[{"id":57266,"kind":"person","name":"Gillan-Myer Maureen A","position":1,"cik":"0001670754","reported_name":"Gillan-Myer Maureen A","relationship":{"officer":true,"officer_title":"EVP, Chief Human Resources Off"}}],"security":"Common Stock","published_at":"2021-10-05T20:49:07.000Z","date":"2021-10-01","kind":"grant","acquired":true,"shares":1467,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Initial grant of restricted stock that vests ratably on October 1, 2022, 2023 and 2024."}],"balance_after":1467,"source":{"system":"sec-edgar","filing":"0001127602-21-026685","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/723188/000112760221026685/form4.xml","form_type":"4"}}]}