{"transactions":[{"id":673226,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2026-08-28T16:55:18.000Z","date":"2026-08-25","kind":"sale","planned":false,"acquired":false,"shares":1779,"price":225.42,"value":401022.18,"ownership":{"direct":true},"balance_after":1030,"source":{"system":"sec-edgar","filing":"0001437749-26-029198","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926029198/rdgdoc.xml","form_type":"4"}},{"id":679205,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Option to Purchase Common Stock [2026 Grant]","published_at":"2026-08-21T20:11:51.000Z","date":"2026-08-20","kind":"exercise","planned":false,"acquired":false,"shares":6479,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These stock options were granted pursuant to the 2020 Omnibus Equity Incentive Plan on May 7, 2026. The grant and exercise of these stock options are exempt from Section 16(b) pursuant to Rule 16b-3(d)."}],"balance_after":0,"derivative":{"exercise_price":171.42,"exercise_date":"2026-05-07","expiration_date":"2031-05-06","underlying":"Common Stock","underlying_shares":6479},"source":{"system":"sec-edgar","filing":"0001437749-26-028735","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926028735/rdgdoc.xml","form_type":"4"}},{"id":679204,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2026-08-21T20:11:51.000Z","date":"2026-08-20","kind":"grant","planned":false,"acquired":false,"shares":4691,"price":236.75,"value":1110594.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares were withheld by the Company to pay the exercise price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Total amount of shares beneficially owned following transactions reported on this form."}],"balance_after":2809,"source":{"system":"sec-edgar","filing":"0001437749-26-028735","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926028735/rdgdoc.xml","form_type":"4"}},{"id":679203,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2026-08-21T20:11:51.000Z","date":"2026-08-20","kind":"exercise","planned":false,"acquired":true,"shares":6479,"price":171.42,"value":1110630.18,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These stock options were granted pursuant to the 2020 Omnibus Equity Incentive Plan on May 7, 2026. The grant and exercise of these stock options are exempt from Section 16(b) pursuant to Rule 16b-3(d)."}],"balance_after":7500,"source":{"system":"sec-edgar","filing":"0001437749-26-028735","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926028735/rdgdoc.xml","form_type":"4"}},{"id":685925,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Option to Purchase Common Stock [2026 Grant]","published_at":"2026-08-17T21:11:09.000Z","date":"2026-08-13","kind":"exercise","planned":false,"acquired":false,"shares":1021,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These stock options were granted pursuant to the 2020 Omnibus Equity Incentive Plan on May 7, 2026. The grant and exercise of these stock options are exempt from Section 16(b) pursuant to Rule 16b-3(d)."}],"balance_after":6479,"derivative":{"exercise_price":171.42,"exercise_date":"2026-05-07","expiration_date":"2031-05-06","underlying":"Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001437749-26-028203","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926028203/rdgdoc.xml","form_type":"4"}},{"id":685924,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2026-08-17T21:11:09.000Z","date":"2026-08-13","kind":"exercise","planned":false,"acquired":true,"shares":1021,"price":171.42,"value":175019.82,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These stock options were granted pursuant to the 2020 Omnibus Equity Incentive Plan on May 7, 2026. The grant and exercise of these stock options are exempt from Section 16(b) pursuant to Rule 16b-3(d)."}],"balance_after":1021,"source":{"system":"sec-edgar","filing":"0001437749-26-028203","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926028203/rdgdoc.xml","form_type":"4"}},{"id":788831,"issuer":{"id":355,"kind":"organization","name":"NATIONAL HEALTHCARE CORP","symbol":"NHC"},"owners":[{"id":18825,"kind":"person","name":"Gifford David R.","position":1,"cik":"0002116347","reported_name":"Gifford David R.","relationship":{"director":true}}],"security":"Option to Purchase Common Stock [2026 Grant]","published_at":"2026-05-07T22:06:49.000Z","date":"2026-05-07","kind":"grant","planned":false,"acquired":true,"shares":7500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These stock options were granted pursuant to the 2020 Omnibus Equity Incentive Plan on May 7, 2026. The grant and exercise of these stock options are exempt from Section 16(b) pursuant to Rule 16b-3(d)."}],"balance_after":7500,"derivative":{"exercise_price":171.42,"exercise_date":"2026-05-07","expiration_date":"2030-05-06","underlying":"Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001437749-26-015695","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047335/000143774926015695/rdgdoc.xml","form_type":"4"}}]}