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As a result of the option exercises and sale transactions reported on this Form 4, the reporting person's net share ownership increased by 59,098 shares, from 4,334,917 to 4,394,015 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $4.46 to $4.28, inclusive, on December 21, 2021, $4.70 to $4.00, inclusive, on December 22, 2021, and $4.15 to $4.05, inclusive, on December 23, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding number of shares sold at each individual price within the price ranges set forth in this footnote(2) to this Form 4."}],"balance_after":4272782,"source":{"system":"sec-edgar","filing":"0001437749-21-029224","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921029224/rdgdoc.xml","form_type":"4"}},{"id":2459430,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-12-23T23:29:52.000Z","date":"2021-12-21","kind":"sale","acquired":false,"shares":26486,"price":4.33,"value":114684.38,"ownership":{"direct":false,"nature":"Through Mark A. Emalfarb Trust U/A DTD 10/1/1987"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were sold to satisfy exercise price and tax withholding obligations to be funded for options expiring on January 3, 2022. As a result of the option exercises and sale transactions reported on this Form 4, the reporting person's net share ownership increased by 59,098 shares, from 4,334,917 to 4,394,015 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $4.46 to $4.28, inclusive, on December 21, 2021, $4.70 to $4.00, inclusive, on December 22, 2021, and $4.15 to $4.05, inclusive, on December 23, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding number of shares sold at each individual price within the price ranges set forth in this footnote(2) to this Form 4."}],"balance_after":4308431,"source":{"system":"sec-edgar","filing":"0001437749-21-029224","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921029224/rdgdoc.xml","form_type":"4"}},{"id":2675325,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Stock Option","published_at":"2021-06-09T21:56:56.000Z","date":"2021-06-09","kind":"exercise","acquired":false,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Exercise of reporting person's stock options that would otherwise expire June 21, 2021."}],"balance_after":0,"derivative":{"exercise_price":1.67,"exercise_date":"2016-06-21","expiration_date":"2021-06-21","underlying":"Common Stock","underlying_shares":100000},"source":{"system":"sec-edgar","filing":"0001437749-21-014443","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014443/rdgdoc.xml","form_type":"4"}},{"id":2675324,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-06-09T21:56:56.000Z","date":"2021-06-09","kind":"exercise","acquired":true,"shares":100000,"price":1.67,"value":167000.0,"ownership":{"direct":false,"nature":"Through Mark A. 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Emalfarb Trust U/A/ DTD 10/1/1987"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were sold to satisfy exercise price and tax withholding obligations to be funded for options expiring on June 21, 2021. As a result of the option exercises and sale transactions reported on this Form 4 together with the Form 4 filed on June 4, 2021, the reporting person's net share ownership increased by an aggregate of 167,930 shares, from 4,166,987 to 4,334,917 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $4.01 to $3.92, inclusive, on June 7, 2021, $3.96 to $3.80, inclusive, on June 8, 2021, and $3.85 to $3.68, inclusive, on June 9, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of footnote (2) to this Form 4."}],"balance_after":4234917,"source":{"system":"sec-edgar","filing":"0001437749-21-014443","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014443/rdgdoc.xml","form_type":"4"}},{"id":2675322,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-06-09T21:56:56.000Z","date":"2021-06-08","kind":"sale","acquired":false,"shares":30000,"price":3.82,"value":114600.0,"ownership":{"direct":false,"nature":"Through Mark A Emalfarb Trust U/A/DTD 10/1/1987"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were sold to satisfy exercise price and tax withholding obligations to be funded for options expiring on June 21, 2021. As a result of the option exercises and sale transactions reported on this Form 4 together with the Form 4 filed on June 4, 2021, the reporting person's net share ownership increased by an aggregate of 167,930 shares, from 4,166,987 to 4,334,917 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $4.01 to $3.92, inclusive, on June 7, 2021, $3.96 to $3.80, inclusive, on June 8, 2021, and $3.85 to $3.68, inclusive, on June 9, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of footnote (2) to this Form 4."}],"balance_after":4257917,"source":{"system":"sec-edgar","filing":"0001437749-21-014443","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014443/rdgdoc.xml","form_type":"4"}},{"id":2675321,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-06-09T21:56:56.000Z","date":"2021-06-07","kind":"sale","acquired":false,"shares":44000,"price":3.95,"value":173800.0,"ownership":{"direct":false,"nature":"Through Mark A. Emalfarb Trust U/A DTD 10/1/1987"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were sold to satisfy exercise price and tax withholding obligations to be funded for options expiring on June 21, 2021. As a result of the option exercises and sale transactions reported on this Form 4 together with the Form 4 filed on June 4, 2021, the reporting person's net share ownership increased by an aggregate of 167,930 shares, from 4,166,987 to 4,334,917 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $4.01 to $3.92, inclusive, on June 7, 2021, $3.96 to $3.80, inclusive, on June 8, 2021, and $3.85 to $3.68, inclusive, on June 9, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of footnote (2) to this Form 4."}],"balance_after":4287917,"source":{"system":"sec-edgar","filing":"0001437749-21-014443","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014443/rdgdoc.xml","form_type":"4"}},{"id":2680648,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Stock Option","published_at":"2021-06-05T00:25:24.000Z","date":"2021-06-04","kind":"exercise","acquired":false,"shares":400000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Exercise of reporting person's stock options that would otherwise expire June 21, 2021."}],"balance_after":0,"derivative":{"exercise_price":1.67,"exercise_date":"2016-06-21","expiration_date":"2021-06-21","underlying":"Common Stock","underlying_shares":400000},"source":{"system":"sec-edgar","filing":"0001437749-21-014193","document":"rdgdoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014193/rdgdoc.xml","form_type":"4"}},{"id":2680647,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-06-05T00:25:24.000Z","date":"2021-06-04","kind":"exercise","acquired":true,"shares":400000,"price":1.67,"value":668000.0,"ownership":{"direct":false,"nature":"Through Mark A. 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As a result of the option exercises and sale transactions reported on this Form 4, the reporting person's net share ownership increased by 164,930 shares, from 4,166,987 to 4,331,917 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $3.82 to $3.65, inclusive, on June 2, 2021, $3.70 to $3.60, inclusive, on June 3, 2021, and $4.00 to $3.70, inclusive, on June 4, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of footnote (2) to this Form 4."}],"balance_after":3931917,"source":{"system":"sec-edgar","filing":"0001437749-21-014193","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014193/rdgdoc.xml","form_type":"4"}},{"id":2680645,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-06-05T00:25:24.000Z","date":"2021-06-03","kind":"sale","acquired":false,"shares":26721,"price":3.61,"value":96462.81,"ownership":{"direct":false,"nature":"Through Mark A Emalfarb Trust U/A DTD 10/1/1987"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were sold to satisfy exercise price and tax withholding obligations to be funded for options expiring on June 21, 2021.  As a result of the option exercises and sale transactions reported on this Form 4, the reporting person's net share ownership increased by 164,930 shares, from 4,166,987 to 4,331,917 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These sold in multiple transactions at prices ranging from $3.82 to $3.65, inclusive, on June 2, 2021, $3.70 to $3.60, inclusive, on June 3, 2021, and $4.00 to $3.70, inclusive, on June 4, 2021. The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of footnote (2) to this Form 4."}],"balance_after":4063917,"source":{"system":"sec-edgar","filing":"0001437749-21-014193","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014193/rdgdoc.xml","form_type":"4"}},{"id":2680644,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-06-05T00:25:24.000Z","date":"2021-06-02","kind":"sale","acquired":false,"shares":76349,"price":3.74,"value":285545.26,"ownership":{"direct":false,"nature":"Through Mark A. 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The reporting person undertakes to provide to Dyadic International, Inc., any security holder of Dyadic International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of footnote (2) to this Form 4."}],"balance_after":4090638,"source":{"system":"sec-edgar","filing":"0001437749-21-014193","document":"rdgdoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1213809/000143774921014193/rdgdoc.xml","form_type":"4"}},{"id":2915012,"issuer":{"id":7611,"kind":"organization","name":"DYADIC INTERNATIONAL INC"},"owners":[{"id":69964,"kind":"person","name":"EMALFARB MARK A","position":1,"cik":"0001328287","reported_name":"EMALFARB MARK A","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"officer_title":"President and CEO"}}],"security":"Stock 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