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The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 353,140 restricted stock units that will vest in three equal installments on December 29, 2023, 2024 and 2025, (b) 104,691 restricted stock units that will vest in two equal installments on December 29, 2023 and 2024, (c) 64,899 restricted stock units that will vest on December 29, 2023, (d) 54,535 restricted stock units that will vest on December 29, 2023, (e) 671,649 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (f) 1,613,765 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2862679,"source":{"system":"sec-edgar","filing":"0000921895-23-002050","document":"form412799gre_08212023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523002050/form412799gre_08212023.xml","form_type":"4"}},{"id":1857546,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2023-06-13T20:02:18.000Z","date":"2023-06-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":48373,"price":5.46,"value":264116.58,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a restricted stock unit award previously granted to the Reporting Person which vested in part on June 11, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 353,140 restricted stock units that will vest in three equal installments on December 29, 2023, 2024 and 2025, (b) 104,691 restricted stock units that will vest in two equal installments on December 29, 2023 and 2024, (c) 64,899 restricted stock units that will vest on December 29, 2023, (d) 54,535 restricted stock units that will vest on December 29, 2023, (e) 671,649 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (f) 1,588,765 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2837679,"source":{"system":"sec-edgar","filing":"0000921895-23-001485","document":"form412799gre_06132023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523001485/form412799gre_06132023.xml","form_type":"4"}},{"id":1952559,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2023-03-15T22:35:57.000Z","date":"2023-03-15","kind":"purchase","acquired":true,"shares":20000,"price":2.6,"value":52000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $2.57 to $2.63, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the shares purchased in the transaction described in footnote (3) above."}],"balance_after":2886052,"source":{"system":"sec-edgar","filing":"0000921895-23-000690","document":"form412799gre_03152023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000690/form412799gre_03152023.xml","form_type":"4"}},{"id":1952558,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2023-03-15T22:35:57.000Z","date":"2023-03-14","kind":"purchase","acquired":true,"shares":20000,"price":2.67,"value":53400.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $2.61 to $2.70, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the shares described in footnote (1) above, (b) 353,140 restricted stock units that will vest in three equal installments on December 29, 2023, 2024 and 2025, (c) 104,691 restricted stock units that will vest in two equal installments on December 29, 2023 and 2024, (d) 109,071 restricted stock units that will vest on June 11, 2023, (e) 64,899 restricted stock units that will vest on December 29, 2023, (f) 54,535 restricted stock units that will vest on December 29, 2023, (g) 671,649 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (h) 1,488,067 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2866052,"source":{"system":"sec-edgar","filing":"0000921895-23-000690","document":"form412799gre_03152023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000690/form412799gre_03152023.xml","form_type":"4"}},{"id":1963820,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2023-03-08T22:02:41.000Z","date":"2023-03-06","kind":"grant","acquired":true,"shares":339610,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents an award of 339,610 restricted stock units with performance based vesting conditions. These restricted stock units will vest upon the achievement of a relative total shareholder return of the Issuer's common stock during the period from March 1, 2023 to the earlier of (i) December 31, 2025, and (ii) the date of a change of control (the \"Measurement Period\"), measured relative to the Russell 2000 index and based on the 20-day trading average beginning on the first day of the Measurement Period and ending on the last day of the Measurement Period, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person. The target number of these restricted stock units that may be earned is reported above; the maximum amount is 150% of the number reported."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the award described in footnote (3) above."}],"balance_after":2846052,"source":{"system":"sec-edgar","filing":"0000921895-23-000668","document":"form412799gre_03082023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000668/form412799gre_03082023.xml","form_type":"4"}},{"id":1963819,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James 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vest on December 29, 2023, (e) 54,535 restricted stock units that will vest on December 29, 2023, (f) 332,039 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (g) 1,488,067 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2506442,"source":{"system":"sec-edgar","filing":"0000921895-23-000668","document":"form412799gre_03082023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000668/form412799gre_03082023.xml","form_type":"4"}},{"id":2072997,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common 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to satisfy the Reporting Person's tax withholding obligation in connection with a performance restricted stock unit award previously granted to the Reporting Person that vested in part on December 29, 2022."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes (a) the shares and awards described in footnote (2) above, less (b) the disposition of shares reported in footnotes (3) and (5) above."}],"balance_after":2202624,"source":{"system":"sec-edgar","filing":"0000921895-23-000012","document":"form412799gre_01032023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000012/form412799gre_01032023.xml","form_type":"4"}},{"id":2072995,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James 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above."}],"balance_after":2225840,"source":{"system":"sec-edgar","filing":"0000921895-23-000012","document":"form412799gre_01032023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000012/form412799gre_01032023.xml","form_type":"4"}},{"id":2072994,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2023-01-03T23:14:04.000Z","date":"2022-12-29","kind":"tax_withholding","acquired":false,"shares":24187,"price":2.55,"value":61676.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a restricted stock unit award previously granted to the Reporting Person that vested in part on December 29, 2022."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 104,691 restricted stock units that will vest in two equal installments on December 29, 2023 and 2024, (b) 109,071 restricted stock units that will vest on June 11, 2023, (c) 64,899 restricted stock units that will vest on December 29, 2023, (d) 54,535 restricted stock units that will vest on December 29, 2023, (e) 104,590 restricted stock units that will vest on January 1, 2023, (f) 332,039 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (g) 1,484,799 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2254624,"source":{"system":"sec-edgar","filing":"0000921895-23-000012","document":"form412799gre_01032023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189523000012/form412799gre_01032023.xml","form_type":"4"}},{"id":2098760,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-12-02T21:01:30.000Z","date":"2022-12-01","kind":"purchase","acquired":true,"shares":15000,"price":2.61,"value":39150.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $2.55 to $2.70, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the shares purchased in the transaction described in footnote (3) above."}],"balance_after":2278811,"source":{"system":"sec-edgar","filing":"0000921895-22-003154","document":"form412799gre_12022022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522003154/form412799gre_12022022.xml","form_type":"4"}},{"id":2098759,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-12-02T21:01:30.000Z","date":"2022-11-30","kind":"purchase","acquired":true,"shares":15000,"price":2.41,"value":36150.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $2.31 to $2.45, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the shares described in footnote (1) above, (b) 157,037 restricted stock units that will vest in three equal installments on December 29, 2022, 2023 and 2024, (c) 109,071 remaining restricted stock units that will vest on June 11, 2023, (d) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (e) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (f) 104,590 remaining restricted stock units that will vest on January 1, 2023, (g) 332,039 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (h) 1,307,205 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2263811,"source":{"system":"sec-edgar","filing":"0000921895-22-003154","document":"form412799gre_12022022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522003154/form412799gre_12022022.xml","form_type":"4"}},{"id":2179926,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-08-18T20:19:12.000Z","date":"2022-08-17","kind":"purchase","acquired":true,"shares":40000,"price":3.19,"value":127600.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $3.14 to $3.23, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the shares described in footnote (1) above, (b) 157,037 restricted stock units that will vest in three equal installments on December 29, 2022, 2023 and 2024, (c) 109,071 remaining restricted stock units that will vest on June 11, 2023, (d) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (e) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (f) 104,590 remaining restricted stock units that will vest on January 1, 2023, (g) 332,039 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (h) 1,267,205 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2248811,"source":{"system":"sec-edgar","filing":"0000921895-22-002497","document":"form412799001_08182022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522002497/form412799001_08182022.xml","form_type":"4"}},{"id":2208706,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-07-12T20:03:59.000Z","date":"2022-07-08","kind":"tax_withholding","acquired":false,"shares":92771,"price":3.9,"value":361806.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a performance restricted stock unit award previously granted to the Reporting Person that vested in part on July 8, 2022."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 157,037 restricted stock units that will vest in three equal installments on December 29, 2022, 2023 and 2024, (b) 109,071 remaining restricted stock units that will vest on June 11, 2023, (c) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (d) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (e) 104,590 remaining restricted stock units that will vest on January 1, 2023, (f) 332,039 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (g) 1,267,205 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2208811,"source":{"system":"sec-edgar","filing":"0000921895-22-002223","document":"form412799001_07122022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522002223/form412799001_07122022.xml","form_type":"4"}},{"id":2228449,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-06-17T20:00:43.000Z","date":"2022-06-15","kind":"purchase","acquired":true,"shares":30000,"price":3.71,"value":111300.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $3.68 to $3.74, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the shares described in footenote (1) above, (b) 157,037 restricted stock units that will vest in three equal installments on December 29, 2022, 2023 and 2024, (c) 109,071 remaining restricted stock units that will vest on June 11, 2023, (d) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (e) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (f) 104,590 remaining restricted stock units that will vest on January 1, 2023, (g) 541,218 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (h) 1,120,797 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2301582,"source":{"system":"sec-edgar","filing":"0000921895-22-002024","document":"form412799001_06162022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522002024/form412799001_06162022.xml","form_type":"4"}},{"id":2232962,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-06-14T20:07:05.000Z","date":"2022-06-11","kind":"tax_withholding","acquired":false,"shares":48373,"price":3.95,"value":191073.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a performance restricted stock unit award previously granted to the Reporting Person that vested in part on June 11, 2022."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 157,037 restricted stock units that will vest in three equal installments on December 29, 2022, 2023 and 2024, (b) 109,071 remaining restricted stock units that will vest on June 11, 2023, (c) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (d) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (e) 104,590 remaining restricted stock units that will vest on January 1, 2023, (f) 541,218 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (g) 1,120,797 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2271582,"source":{"system":"sec-edgar","filing":"0000921895-22-001986","document":"form412799001gre_06142022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522001986/form412799001gre_06142022.xml","form_type":"4"}},{"id":2276459,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-05-10T21:13:49.000Z","date":"2022-05-09","kind":"purchase","acquired":true,"shares":10000,"price":3.4,"value":34000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $3.375 to $3.41, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the shares purchased in the transaction described in footnote (3) above."}],"balance_after":2319955,"source":{"system":"sec-edgar","filing":"0000921895-22-001555","document":"form412799001_05102022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522001555/form412799001_05102022.xml","form_type":"4"}},{"id":2276458,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-05-10T21:13:49.000Z","date":"2022-05-06","kind":"purchase","acquired":true,"shares":30000,"price":3.78,"value":113400.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $3.705 to $3.845, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 157,037 restricted stock units that will vest in three equal installments on December 29, 2022, 2023 and 2024, (b) 218,140 remaining restricted stock units that will vest on June 11, 2022 and 2023, (c) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (d) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (e) 104,590 remaining restricted stock units that will vest on January 1, 2023, (f) 541,218 restricted stock units with performance based vesting conditions tied to relative total shareholder return and (g) 1,050,101 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2309955,"source":{"system":"sec-edgar","filing":"0000921895-22-001555","document":"form412799001_05102022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189522001555/form412799001_05102022.xml","form_type":"4"}},{"id":2355783,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-03-04T02:13:35.000Z","date":"2022-03-01","kind":"grant","acquired":true,"shares":145365,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents an award of 145,365 restricted stock units with performance based vesting conditions. These restricted stock units will vest upon the achievement of a relative total shareholder return of the Issuer's common stock during the period from March 1, 2022 to the earlier of (i) December 31, 2024, and (ii) the date of a change of control (the \"Measurement Period\"), measured relative to the Russell 2000 index and based on the 20-day trading average beginning on the first day of the Measurement Period and ending on the last day of the Measurement Period, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person. The target number of these restricted stock units that may be earned is reported above; the maximum amount is 150% of the number reported."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the award described in footnote (3) above."}],"balance_after":2279955,"source":{"system":"sec-edgar","filing":"0001193805-22-000419","document":"e621405_4-james.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000119380522000419/e621405_4-james.xml","form_type":"4"}},{"id":2355782,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief 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disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a restricted stock unit award previously granted to the Reporting Person which vested in part on December 29, 2021."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 218,141 remaining restricted stock units that will vest on June 11, 2022 and 2023, (b) 129,799 restricted stock units that will vest in two equal installments on December 29, 2022 and 2023, (c) 109,070 remaining restricted stock units that will vest on December 29, 2022 and 2023, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 605,035 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 782,536 shares of common stock beneficially owned by the Reporting 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218,141 remaining restricted stock units that will vest on June 11, 2022 and 2023, (b) 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, (c) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 605,035 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 687,288 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2077948,"source":{"system":"sec-edgar","filing":"0000921895-21-002678","document":"form412799001_11152021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521002678/form412799001_11152021.xml","form_type":"4"}},{"id":2591144,"issuer":{"id":7369,"kind":"organization","name":"HARVARD 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The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 218,141 remaining restricted stock units that will vest on June 11, 2022 and 2023, (b) 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, (c) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 605,035 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 701,065 shares of common stock beneficially owned by the Reporting 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The target number of the restricted stock units that may be earned was reported on the date of grant; the maximum amount is 150% of the number then reported. As a result of the Issuer's performance based on such performance targets, the Reporting Person earned 150% of the target amount, subject to continuation of employment through the remaining vesting dates. Accordingly, the reported transaction reflects the acquisition of 109,070 additional performance restricted stock units earned above the target grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 218,141 remaining restricted stock units that will vest on June 11, 2022 and 2023, (b) 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, (c) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (c) 243,072 restricted stock units that will fully vest on July 8, 2021, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 605,035 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 755,116 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2388848,"source":{"system":"sec-edgar","filing":"0000921895-21-001647","document":"form412799gre_06152021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001647/form412799gre_06152021.xml","form_type":"4"}},{"id":2697349,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Stock option (right to buy)","published_at":"2021-05-25T20:26:45.000Z","date":"2021-05-21","kind":"exercise","acquired":false,"shares":24312,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options vest in four equal installments on December 31, 2020, 2021, 2022 and 2023."}],"balance_after":352690,"derivative":{"exercise_price":2.63,"expiration_date":"2027-06-11","underlying":"Common Stock","underlying_shares":24312},"source":{"system":"sec-edgar","filing":"0000921895-21-001485","document":"form412799001_05252021.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001485/form412799001_05252021.xml","form_type":"4"}},{"id":2697348,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-05-25T20:26:45.000Z","date":"2021-05-21","kind":"sale","acquired":false,"shares":24312,"price":7.14,"value":173587.68,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $7.04 to $7.20, inclusive. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes (a) the shares and awards described in footnote (1) above, less (b) the disposition of shares reported in footnote (2) above."}],"balance_after":2279778,"source":{"system":"sec-edgar","filing":"0000921895-21-001485","document":"form412799001_05252021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001485/form412799001_05252021.xml","form_type":"4"}},{"id":2697347,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James 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The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes (a) the shares and awards described in footnote (4) above, less (b) the disposition of shares reported in footnote (5) above."}],"balance_after":2279778,"source":{"system":"sec-edgar","filing":"0000921895-21-001455","document":"form412799001_05212021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001455/form412799001_05212021.xml","form_type":"4"}},{"id":2701296,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-05-21T20:19:09.000Z","date":"2021-05-20","kind":"exercise","acquired":true,"shares":14876,"price":2.63,"value":39123.88,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (3) above, plus (b) the acquisition of 14,876 shares of common stock pursuant to the exercise of stock options as reported on this Form 4."}],"balance_after":2294654,"source":{"system":"sec-edgar","filing":"0000921895-21-001455","document":"form412799001_05212021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001455/form412799001_05212021.xml","form_type":"4"}},{"id":2701295,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-05-21T20:19:09.000Z","date":"2021-05-19","kind":"sale","acquired":false,"shares":39188,"price":7.17,"value":280977.96,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $7.07 to $7.26, inclusive. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes (a) the shares and awards described in footnote (1) above, less (b) the disposition of shares reported in footnote (2) above."}],"balance_after":2279778,"source":{"system":"sec-edgar","filing":"0000921895-21-001455","document":"form412799001_05212021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001455/form412799001_05212021.xml","form_type":"4"}},{"id":2701294,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-05-21T20:19:09.000Z","date":"2021-05-19","kind":"exercise","acquired":true,"shares":39188,"price":2.63,"value":103064.44,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes (a) an award of 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person, (b) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (c) 243,072 restricted stock units that will fully vest on July 8, 2021, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 823,176 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 685,234 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2318966,"source":{"system":"sec-edgar","filing":"0000921895-21-001455","document":"form412799001_05212021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001455/form412799001_05212021.xml","form_type":"4"}},{"id":2705908,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Stock option (right to buy)","published_at":"2021-05-19T21:22:50.000Z","date":"2021-05-18","kind":"exercise","acquired":false,"shares":39188,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options vest in four equal installments on December 31, 2020, 2021, 2022 and 2023."}],"balance_after":431066,"derivative":{"exercise_price":2.63,"expiration_date":"2027-06-11","underlying":"Common Stock","underlying_shares":39188},"source":{"system":"sec-edgar","filing":"0000921895-21-001420","document":"form412799001_05192021.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001420/form412799001_05192021.xml","form_type":"4"}},{"id":2705907,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-05-19T21:22:50.000Z","date":"2021-05-18","kind":"sale","acquired":false,"shares":39188,"price":7.41,"value":290383.08,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $7.34 to $7.52, inclusive. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes (a) the shares and awards described in footnote (1) above, less (b) the disposition of shares reported in footnote (2) above."}],"balance_after":2279788,"source":{"system":"sec-edgar","filing":"0000921895-21-001420","document":"form412799001_05192021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001420/form412799001_05192021.xml","form_type":"4"}},{"id":2705906,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-05-19T21:22:50.000Z","date":"2021-05-18","kind":"exercise","acquired":true,"shares":39188,"price":2.63,"value":103064.44,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes (a) an award of 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person, (b) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (c) 243,072 restricted stock units that will fully vest on July 8, 2021, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 823,176 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 685,234 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2318966,"source":{"system":"sec-edgar","filing":"0000921895-21-001420","document":"form412799001_05192021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521001420/form412799001_05192021.xml","form_type":"4"}},{"id":2786771,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-03-16T22:51:28.000Z","date":"2021-03-12","kind":"sale","acquired":false,"shares":35000,"price":5.98,"value":209300.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $5.98 to $6.07, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) an award of 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person, (b) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (c) 243,072 restricted stock units that will fully vest on July 8, 2021, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 823,176 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 646,046 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2279778,"source":{"system":"sec-edgar","filing":"0000921895-21-000761","document":"form412799001_03162021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521000761/form412799001_03162021.xml","form_type":"4"}},{"id":2814928,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-03-03T22:31:26.000Z","date":"2021-03-01","kind":"grant","acquired":true,"shares":186674,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents an award of 186,674 restricted stock units with performance based vesting conditions. These restricted stock units will vest upon the achievement of a relative total shareholder return of the Issuer's common stock during the period from March 1, 2021 to the earlier of (i) December 31, 2023, and (ii) the date of a change of control (the \"Measurement Period\"), measured relative to the Russell 2000 index and based on the 20-day trading average beginning on the first day of the Measurement Period and ending on the last day of the Measurement Period, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person. The target number of these restricted stock units that may be earned is reported above; the maximum amount is 150% of the number reported."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the award described in footnote (3) above."}],"balance_after":2314778,"source":{"system":"sec-edgar","filing":"0000921895-21-000618","document":"form412799gre_03032021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521000618/form412799gre_03032021.xml","form_type":"4"}},{"id":2814927,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-03-03T22:31:26.000Z","date":"2021-03-01","kind":"grant","acquired":true,"shares":194698,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents an award of 194,698 restricted stock units that will vest in three equal installments on December 31, 2021, 2022 and 2023, subject to the terms set forth in an award agreement between the Issuer and the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the award described in footnote (1) above, (b) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023, (c) 243,072 restricted stock units that will fully vest on July 8, 2021, (d) 209,180 remaining restricted stock units that will vest on January 1, 2022 and 2023, (e) 636,502 restricted stock units with performance based vesting conditions tied to relative total shareholder return, and (f) 681,046 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2128104,"source":{"system":"sec-edgar","filing":"0000921895-21-000618","document":"form412799gre_03032021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521000618/form412799gre_03032021.xml","form_type":"4"}},{"id":2921754,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-01-05T22:35:02.000Z","date":"2021-01-01","kind":"tax_withholding","acquired":false,"shares":30478,"price":4.29,"value":130750.62,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a restricted stock unit award previously granted to the Reporting Person which vested in part on January 1, 2021."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, less (b) the disposition of shares reported in footnote (3) above."}],"balance_after":1933406,"source":{"system":"sec-edgar","filing":"0000921895-21-000028","document":"form412799gre_01052021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521000028/form412799gre_01052021.xml","form_type":"4"}},{"id":2921753,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2021-01-05T22:35:02.000Z","date":"2020-12-31","kind":"tax_withholding","acquired":false,"shares":26231,"price":4.29,"value":112530.99,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with a restricted stock unit award previously granted to the Reporting Person which vested in part on December 31, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) 163,606 remaining restricted stock units that will vest on December 31, 2021, 2022 and 2023; (b) 243,072 restricted stock units that will fully vest on July 8, 2021; (c) 209,180 restricted stock units that will vest on January 1, 2022 and 2023; (d) 636,502 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (e) 711,524 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1963884,"source":{"system":"sec-edgar","filing":"0000921895-21-000028","document":"form412799gre_01052021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000092189521000028/form412799gre_01052021.xml","form_type":"4"}},{"id":3085088,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-07-11T00:00:41.000Z","date":"2020-07-08","kind":"tax_withholding","acquired":false,"shares":157490,"price":3.49,"value":549640.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The shares were disposed of to satisfy the Reporting Person's tax withholding obligation in connection with restricted stock unit and performance restricted stock unit awards previously granted to the Reporting Person which vested in part on July 8, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, less (b) the disposition of shares reported in footnote (3) above."}],"balance_after":1990115,"source":{"system":"sec-edgar","filing":"0001209191-20-042223","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120042223/doc4.xml","form_type":"4"}},{"id":3085087,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-07-11T00:00:41.000Z","date":"2020-07-08","kind":"grant","acquired":true,"shares":209180,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On July 8, 2019, the Reporting Person was granted an award of 418,360 restricted stock units with performance based vesting conditions based on the achievement of a relative total shareholder return of the Issuer's common stock from July 8, 2019 to the earlier of (i) July 8, 2020 or (ii) upon a change of control (measured relative to the NASDAQ Biotechnology index). The target number of the restricted stock units that may be earned was reported on the date of grant; the maximum amount is 150% of the number then reported.  As a result of the Issuer's performance based on such performance targets, the reporting person earned 150% of the target amount, subject to continuation of employment through the remaining vesting dates.  Accordingly, the reported transaction reflects the acquisition of 209,180 additional performance restricted stock units earned above the target grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the award described in footnote (1) above, (b) 218,141 restricted stock units that will vest on December 31, 2020, 2021, 2022 and 2023; (c) 243,072 restricted stock units that will fully vest on July 8, 2021; (d) 313,770 restricted stock units that will vest in three equal installments on January 1, 2021, 2022 and 2023; (e) 636,502 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (f) 526,940 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":2147605,"source":{"system":"sec-edgar","filing":"0001209191-20-042223","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120042223/doc4.xml","form_type":"4"}},{"id":3110804,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Stock option (right to buy)","published_at":"2020-06-15T22:52:06.000Z","date":"2020-06-11","kind":"grant","acquired":true,"shares":470254,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The options vest in four equal installments on December 31, 2020, 2021, 2022 and 2023."}],"balance_after":470254,"derivative":{"exercise_price":2.63,"expiration_date":"2027-06-11","underlying":"Common Stock","underlying_shares":470254},"source":{"system":"sec-edgar","filing":"0001209191-20-036759","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120036759/doc4.xml","form_type":"4"}},{"id":3110803,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-06-15T22:52:06.000Z","date":"2020-06-11","kind":"grant","acquired":true,"shares":218141,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents an award of 218,141 restricted stock units with performance based vesting conditions. These restricted stock units will vest in equal installments on June 11, 2021, 2022 and 2023, and are linked to the achievement of a relative total shareholder return of the Issuer's common stock from June 11, 2020 to the earlier of (i) June 11, 2021 or (ii) upon a change of control (measured relative to the NASDAQ Biotechnology index and based on the 20-day trading average price before each such date). The target number of these restricted stock units that may be earned is reported above; the maximum amount is 150% of the number reported."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes (a) the shares and awards described in footnote (2) above, and (b) the award described in footnote (3) above."}],"balance_after":1938424,"source":{"system":"sec-edgar","filing":"0001209191-20-036759","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120036759/doc4.xml","form_type":"4"}},{"id":3110802,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-06-15T22:52:06.000Z","date":"2020-06-11","kind":"grant","acquired":true,"shares":218141,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents an award of 218,141 restricted stock units that will vest in four equal installments on December 31, 2020, 2021, 2022 and 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) the award described in footnote (1) above, (b) 202,875 restricted stock units that will fully vest on July 8, 2020; (c) 243,072 restricted stock units that will fully vest on July 8, 2021; (d) 313,770 restricted stock units that will vest in three equal installments on January 1, 2021, 2022 and 2023; (e) 418,360 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (f) 324,066 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1720284,"source":{"system":"sec-edgar","filing":"0001209191-20-036759","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120036759/doc4.xml","form_type":"4"}},{"id":3134056,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-05-27T20:30:12.000Z","date":"2020-05-23","kind":"tax_withholding","acquired":false,"shares":10302,"price":2.66,"value":27403.32,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes (a) 202,875 restricted stock units that will fully vest on July 8, 2020; (b) 243,072 restricted stock units that will fully vest on July 8, 2021; (c) 313,770 restricted stock units that will vest in three equal installments on January 1, 2021, 2022 and 2023; (d) 418,360 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (e) 324,066 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1502143,"source":{"system":"sec-edgar","filing":"0001209191-20-032305","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120032305/doc4.xml","form_type":"4"}},{"id":3156745,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-05-08T20:49:37.000Z","date":"2020-05-07","kind":"purchase","acquired":true,"shares":10000,"price":2.53,"value":25300.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $2.525 to $2.53, inclusive. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) deferred stock award of 35,100 restricted stock units which fully vest on May 23, 2020; (b) 202,875 restricted stock units that will fully vest on July 8, 2020; (c) 243,072 restricted stock units that will fully vest on July 8, 2021; (d) 313,770 restricted stock units that will vest in three equal installments on January 1, 2021, 2022 and 2023; (e) 418,360 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (f) 299,268 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1512445,"source":{"system":"sec-edgar","filing":"0001209191-20-027953","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120027953/doc4.xml","form_type":"4"}},{"id":3323793,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2020-01-03T21:42:45.000Z","date":"2020-01-01","kind":"tax_withholding","acquired":false,"shares":32959,"price":3.05,"value":100524.95,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares were disposed to satisfy the Reporting Person's tax withholding obligation in connection with deferred stock awards previously granted to the Reporting Person which vested in part on January 1, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Reflects the transfer of 71,631 shares from the James W. Green Revocable Trust to James W. Green, individually. This reflects only a change in the form of beneficial ownership of the Reporting Person without affecting the Reporting Person's pecuniary interest in such shares and is, therefore, being voluntarily reported herein."}],"balance_after":71631,"source":{"system":"sec-edgar","filing":"0001209191-20-001080","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919120001080/doc4.xml","form_type":"4"}},{"id":3373129,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2019-11-13T21:06:19.000Z","date":"2019-11-11","kind":"purchase","acquired":true,"shares":10000,"price":2.61,"value":26100.0,"ownership":{"direct":false,"nature":"by James W. Green Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $2.60 to $2.62, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) deferred stock award of 35,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 16, 2019, immediately prior to the commencement of such meeting, and (ii) May 23, 2020; (b) a deferred stock award of 202,875 restricted stock units which shall fully vest on July 8, 2020; (c) a deferred stock award of 243,072 restricted stock units which shall fully vest on July 8, 2021; (d) a deferred stock award of 418,360 restricted stock units which shall vest in four equal installments on January 1, 2020, 2021, 2022 and 2023; (e) a deferred stock award of 418,360 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (f) 217,637 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1535404,"source":{"system":"sec-edgar","filing":"0001209191-19-056321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119056321/doc4.xml","form_type":"4"}},{"id":3434781,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2019-08-19T11:38:19.000Z","date":"2019-08-16","kind":"purchase","acquired":true,"shares":10000,"price":2.485,"value":24850.0,"ownership":{"direct":false,"nature":"by James W. Green Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $2.47 to $2.50, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) deferred stock award of 35,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 16, 2019, immediately prior to the commencement of such meeting, and (ii) May 23, 2020; (b) a deferred stock award of 202,875 restricted stock units which shall fully vest on July 8, 2020; (c) a deferred stock award of 243,072 restricted stock units which shall fully vest on July 8, 2021; (d) a deferred stock award of 418,360 restricted stock units which shall vest in four equal installments on January 1, 2020, 2021, 2022 and 2023; (e) a deferred stock award of 418,360 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (f) 207,637 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1525404,"source":{"system":"sec-edgar","filing":"0001209191-19-046448","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119046448/doc4.xml","form_type":"4"}},{"id":3441419,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2019-08-12T21:37:03.000Z","date":"2019-08-09","kind":"purchase","acquired":true,"shares":20000,"price":2.466,"value":49320.0,"ownership":{"direct":false,"nature":"by James W. Green Revocable Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This amendment is being filed to correct the transaction code in the initial filing to clarify that this acquisition was an open-market purchase."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $2.43 to $2.49, inclusive. The price reported above reflects the weighted\naverage purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the\nissuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes (a) deferred stock award of 35,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting\nof Stockholders after May 16, 2019, immediately prior to the commencement of such meeting, and (ii) May 23, 2020; (b) a deferred stock award\nof 202,875 restricted stock units which shall fully vest on July 8, 2020; (c) a deferred stock award of 243,072 restricted stock units which shall fully\nvest on July 8, 2021; (d) a deferred stock award of 418,360 restricted stock units which shall vest in four equal installments on January 1, 2020,\n2021, 2022 and 2023; (e) a deferred stock award of 418,360 restricted stock units with performance based vesting conditions tied to relative total\nshareholder return; and (f) 197,637 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1515404,"source":{"system":"sec-edgar","filing":"0001209191-19-045567","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119045567/doc4a.xml","form_type":"4/A","original_submission_date":"2019-08-12"}},{"id":3441362,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2019-08-12T20:05:47.000Z","date":"2019-08-09","kind":"grant","acquired":true,"shares":20000,"price":2.466,"value":49320.0,"ownership":{"direct":false,"nature":"by James W. Green Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $2.43 to $2.49, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) deferred stock award of 35,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 16, 2019, immediately prior to the commencement of such meeting, and (ii) May 23, 2020; (b) a deferred stock award of 202,875 restricted stock units which shall fully vest on July 8, 2020; (c) a deferred stock award of 243,072 restricted stock units which shall fully vest on July 8, 2021; (d) a deferred stock award of 418,360 restricted stock units which shall vest in four equal installments on January 1, 2020, 2021, 2022 and 2023; (e) a deferred stock award of 418,360 restricted stock units with performance based vesting conditions tied to relative total shareholder return; and (f) 197,637 shares of common stock beneficially owned by the Reporting Person."}],"balance_after":1515404,"source":{"system":"sec-edgar","filing":"0001209191-19-045485","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119045485/doc4.xml","form_type":"4"}},{"id":3465314,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2019-07-09T20:16:39.000Z","date":"2019-07-08","kind":"grant","acquired":true,"shares":418360,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F9","text":"Represents a deferred stock award of 418,360 restricted stock units with performance based vesting conditions. These restricted stock units shall vest based on the achievement of a relative total shareholder return of the Issuer's common stock from July 8, 2019 to the earlier of (i) July 8, 2020 or (ii) upon a change of control (measured relative to the NASDAQ Biotechnology index). The target number of these restricted stock units that may be earned is reported above; the maximum amount is 150% of the number reported."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F10","text":"Includes the equity described in footnotes (2), (3), (5), (7) and (9)."}],"balance_after":1493404,"source":{"system":"sec-edgar","filing":"0001209191-19-041546","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119041546/doc4.xml","form_type":"4"}},{"id":3465313,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common 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shares of stock were tendered to satisfy tax withholding obligations. No shares of stock were sold."}],"balance_after":3831,"source":{"system":"sec-edgar","filing":"0001104659-19-039590","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1039065/000110465919039590/a4.xml","form_type":"4"}},{"id":3512094,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-05-24T21:28:21.000Z","date":"2019-05-23","kind":"grant","acquired":true,"shares":35100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a deferred stock award of 35,100 restricted stock units which fully vest on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 16, 2019, immediately prior to the commencement of such meeting, and (ii) May 23, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) deferred stock award of 35,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 16, 2019, immediately prior to the commencement of such meeting, and (ii) May 23, 2020; (b) a deferred stock award of 15,825 restricted stock units which vest quarterly in equal installments on June 30, 2019, September 30, 2019 and December 31, 2019; and (c) 165,087 shares of common stock held by the Reporting Person."}],"balance_after":216012,"source":{"system":"sec-edgar","filing":"0001209191-19-032796","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119032796/doc4.xml","form_type":"4"}},{"id":3672447,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-02-06T21:10:58.000Z","date":"2018-08-29","kind":"purchase","acquired":true,"shares":2500,"price":5.74,"value":14350.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $5.73 to $5.75. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) a deferred stock award of 18,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 17, 2018, immediately prior to the commencement of such meeting, and (ii) May 17, 2019; (b) a deferred stock award of 11,250 restricted stock units which vest quarterly in equal installments on September 30, 2018 and December 31, 2018; and (c) 130,462 shares of common stock held by the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"This amendment is being filed to correct an administrative error by which 5,625 shares were inadvertently omitted from this amount in the reporting person's Form 4 filed on August 30, 2018 and subsequently omitted from the Form 4 filed on January 3, 2019."}],"balance_after":159812,"source":{"system":"sec-edgar","filing":"0001209191-19-007711","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119007711/doc4a.xml","form_type":"4/A","original_submission_date":"2018-08-30"}},{"id":3709628,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-01-03T21:31:10.000Z","date":"2019-01-02","kind":"grant","acquired":true,"shares":21100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a deferred stock award of 21,100 restricted stock units which vest quarterly in equal installments on March 31, 2019, June 30, 2019, September 30, 2019 and December 31, 2019, and are subject to continued service as a non-employee director on the applicable vesting dates. These retainer awards are granted in satisfaction of the annual retainer compensation to be earned by the director for his service on the Issuer's Board of Directors and its Committees during 2019. The number of shares of common stock subject to such retainer award is equal to the amount of cash that would have been received had the retainers all been paid in cash, divided by the average daily closing market price of the Issuer's common stock for the month of November, rounded to the nearest 100 shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) a deferred stock award of 21,100 restricted stock units which vest quarterly in equal installments on March 31, 2019, June 30, 2019, September 30, 2019 and December 31, 2019; a (b) deferred stock award of 18,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 17, 2018, immediately prior to the commencement of such meeting, and (ii) May 17, 2019; and (c) 136,087 shares of common stock held by the Reporting Person."}],"balance_after":175287,"source":{"system":"sec-edgar","filing":"0001209191-19-000981","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919119000981/doc4.xml","form_type":"4"}},{"id":3829711,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-08-30T20:07:42.000Z","date":"2018-08-29","kind":"purchase","acquired":true,"shares":2500,"price":5.74,"value":14350.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $5.73 to $5.75. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) a deferred stock award of 18,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 17, 2018, immediately prior to the commencement of such meeting, and (ii) May 17, 2019; (b) a deferred stock award of 11,250 restricted stock units which vest quarterly in equal installments on September 30, 2018 and December 31, 2018; and (c) 124,837 shares of common stock held by the Reporting Person."}],"balance_after":154187,"source":{"system":"sec-edgar","filing":"0001209191-18-048924","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919118048924/doc4.xml","form_type":"4"}},{"id":3831829,"issuer":{"id":4160,"kind":"organization","name":"OSI SYSTEMS INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Spacelabs Healthcare"}}],"security":"Common Stock","published_at":"2018-08-29T01:50:20.000Z","date":"2018-08-28","kind":"purchase","acquired":true,"shares":250,"price":76.65,"value":19162.5,"ownership":{"direct":true},"balance_after":4064,"source":{"system":"sec-edgar","filing":"0001179110-18-010976","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1039065/000117911018010976/edgar.xml","form_type":"4"}},{"id":3871920,"issuer":{"id":4160,"kind":"organization","name":"OSI SYSTEMS INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Spacelabs Healthcare"}}],"security":"Common Stock","published_at":"2018-07-07T00:24:27.000Z","date":"2018-07-05","kind":"grant","acquired":true,"shares":3814,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":3814,"source":{"system":"sec-edgar","filing":"0001179110-18-009550","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1039065/000117911018009550/edgar.xml","form_type":"4"}},{"id":3915789,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-29T20:33:43.000Z","date":"2018-05-24","kind":"grant","acquired":true,"shares":18100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a deferred stock award of 18,100 restricted stock units which fully vest on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 17, 2018, immediately prior to the commencement of such meeting, and (ii) May 24, 2019."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) a deferred stock award of 18,100 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 17, 2018, immediately prior to the commencement of such meeting, and (ii) May 17, 2019; 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These retainer awards are granted in lieu and satisfaction of the annual cash retainer compensation to be earned by the director for his service on the Issuer's Board of Directors and its Committees during 2018. The number of shares of common stock subject to such retainer award is equal to the amount of cash that would have been received had the retainers all been paid in cash, divided by the average daily closing market price of the Issuer's common stock for the month of November, rounded to the nearest 100 shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) a deferred stock award of 22,500 restricted stock units which vest quarterly in equal installments on March 31, 2018, June 30, 2018, September 30, 2018 and December 31, 2018; (b) a deferred stock award of 31,300 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 18, 2017, immediately prior to the commencement of such meeting, and (ii) May 18, 2018; and (c) 85,412 shares of common stock held by the Reporting Person."}],"balance_after":139212,"source":{"system":"sec-edgar","filing":"0001209191-18-001614","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919118001614/doc4.xml","form_type":"4"}},{"id":4265054,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-07-05T20:09:55.000Z","date":"2017-07-01","kind":"grant","acquired":true,"shares":6500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a deferred stock award of 6,500 restricted stock units which vest quarterly in equal installments on September 30, 2017 and December 31, 2017. This retainer award was granted in lieu and satisfaction of the annual cash retainer compensation to be earned by the director for his service on a committee of the Issuer's Board of Directors that the reporting person was appointed to following the 2017 annual meeting of stockholders. The number of shares of common stock subject to such retainer award is equal to the amount of cash that would have been received had the applicable retainer all been paid in cash, divided by the average daily closing market price of the Issuer's common stock for the month of April, rounded to the nearest 100 shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (a) a deferred stock award of 31,300 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 18, 2017, immediately prior to the commencement of such meeting, and (ii) May 18, 2018; (b) a deferred stock award of 14,800 restricted stock units which vest quarterly in equal installments on September 30, 2017 and December 31, 2017; and (c) 70,612 shares of common stock held by the Reporting Person."}],"balance_after":116712,"source":{"system":"sec-edgar","filing":"0001209191-17-043259","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919117043259/doc4.xml","form_type":"4"}},{"id":4287251,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-06-09T20:04:06.000Z","date":"2017-06-08","kind":"purchase","acquired":true,"shares":7712,"price":2.55,"value":19665.6,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes (a) a deferred stock award of 31,300 restricted stock units which fully vest on the earlier of (i) the date of the Issuer's next Annual Meeting of Stockholders after May 18, 2017, immediately prior to the commencement of such meeting, and (ii) May 18, 2018; 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(b) a deferred stock award of 12,450 restricted stock units which vest quarterly in equal installments on June 30, 2017, September 30, 2017 and December 31, 2017; and (c) 58,750 shares of common stock held by the Reporting Person."}],"balance_after":102500,"source":{"system":"sec-edgar","filing":"0001209191-17-036302","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1123494/000120919117036302/doc4.xml","form_type":"4"}},{"id":4503496,"issuer":{"id":7369,"kind":"organization","name":"HARVARD BIOSCIENCE INC"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-01-04T21:43:24.000Z","date":"2017-01-03","kind":"grant","acquired":true,"shares":16600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a deferred stock award of 16,600 restricted stock units which vest quarterly in equal installments on March 31, 2017, June 30, 2017, September 30, 2017 and December 31, 2017, and are subject to continued service as a non-employee director on the applicable vesting dates. These retainer awards are granted in lieu and satisfaction of the annual cash retainer compensation to be earned by the director for his service on the Issuer's Board of Directors and its Committees during 2017. 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The remaining RSUs will vest based on the Company's performance as determined following the performance period, which ends on July 31, 2017."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents forfeiture of performance based RSUs granted on 9/08/14 in connection with the grantee's resignation as an officer of the Company effective October 31, 2016. The remaining RSUs will vest based on the Company's performance as determined following the performance period, which ends on July 31, 2017."}],"balance_after":11246,"derivative":{"underlying":"Common Stock","underlying_shares":3749},"source":{"system":"sec-edgar","filing":"0000899243-16-032672","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/6284/000089924316032672/doc4.xml","form_type":"4"}},{"id":4570548,"issuer":{"id":165469,"kind":"organization","name":"ANALOGIC CORP","symbol":"ALOG"},"owners":[{"id":76365,"kind":"person","name":"Green James W","position":1,"cik":"0001400121","reported_name":"Green James W","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President/CEO/Director"}}],"security":"Restricted Stock Units","published_at":"2016-11-02T20:24:41.000Z","date":"2016-10-31","kind":"disposition_to_issuer","acquired":false,"shares":4939,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents the accelerated vesting of one-third of the 7,408 time-based restricted stock units (\"RSUs\") granted on 9/10/15 in connection with the grantee's resignation as an officer of Analogic Corporation (the \"Company\") effective October 31, 2016, which converted into common stock of the Company on a 1:1 basis.  The remainder of the RSU grant was cancelled effective October 31, 2016."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the accelerated vesting of one-third of the 7,408 time-based restricted stock units (\"RSUs\") granted on 9/10/15 in connection with the grantee's resignation as an officer of Analogic Corporation (the \"Company\") effective October 31, 2016, which converted into common stock of the Company on a 1:1 basis.  The remainder of the RSU grant was cancelled effective October 31, 2016."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents the accelerated vesting of one-third of the 7,408 time-based restricted stock units (\"RSUs\") granted on 9/10/15 in connection with the grantee's resignation as an officer of Analogic Corporation (the \"Company\") effective October 31, 2016, which converted into common stock of the Company on a 1:1 basis.  The remainder of the RSU grant was cancelled effective October 31, 2016."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents the accelerated vesting of one-third of the 7,408 time-based restricted stock units (\"RSUs\") granted on 9/10/15 in connection with the grantee's resignation as an officer of Analogic Corporation (the \"Company\") effective October 31, 2016, which converted into common stock of the Company on a 1:1 basis.  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