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The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":165357,"source":{"system":"sec-edgar","filing":"0001193125-26-100530","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312526100530/ownership.xml","form_type":"4"}},{"id":850421,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":38052,"kind":"person","name":"Jackson Benjamin","position":1,"cik":"0001779964","reported_name":"Jackson Benjamin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-03-10T21:53:57.000Z","date":"2026-03-09","kind":"sale","planned":false,"acquired":false,"shares":3119,"price":1.96,"value":6113.24,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.87 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":115747,"source":{"system":"sec-edgar","filing":"0001193125-26-100529","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312526100529/ownership.xml","form_type":"4"}},{"id":850796,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-10T21:53:40.000Z","date":"2026-03-09","kind":"sale","planned":false,"acquired":false,"shares":3360,"price":1.96,"value":6585.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.87 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":77428,"source":{"system":"sec-edgar","filing":"0001193125-26-100528","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312526100528/ownership.xml","form_type":"4"}},{"id":850420,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49336,"kind":"person","name":"Boniface John J.","position":1,"cik":"0001870674","reported_name":"Boniface John J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-10T21:53:25.000Z","date":"2026-03-09","kind":"sale","planned":false,"acquired":false,"shares":3038,"price":1.96,"value":5954.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.87 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":147359,"source":{"system":"sec-edgar","filing":"0001193125-26-100527","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312526100527/ownership.xml","form_type":"4"}},{"id":850419,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":305,"kind":"person","name":"Aerts Austin","position":1,"cik":"0001979974","reported_name":"Aerts Austin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-10T21:53:14.000Z","date":"2026-03-09","kind":"sale","planned":false,"acquired":false,"shares":674,"price":1.96,"value":1321.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.87 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":271540,"source":{"system":"sec-edgar","filing":"0001193125-26-100526","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312526100526/ownership.xml","form_type":"4"}},{"id":855625,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":30512,"kind":"person","name":"Lawrence Sandra AJ","position":1,"cik":"0001306386","reported_name":"Lawrence Sandra AJ","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-07T00:25:13.000Z","date":"2026-03-06","kind":"sale","planned":true,"acquired":false,"shares":1560,"price":1.95,"value":3042.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.90 to $2.00, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":18033,"source":{"system":"sec-edgar","filing":"0001193125-26-097140","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1306386/000119312526097140/ownership.xml","form_type":"4"}},{"id":884525,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-24T23:10:55.000Z","date":"2026-02-24","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":2.34,"value":4680.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.23 to $2.45, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":80788,"source":{"system":"sec-edgar","filing":"0001193125-26-067712","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312526067712/ownership.xml","form_type":"4"}},{"id":919102,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":30494,"kind":"person","name":"Kamdar Kim P.","position":1,"cik":"0001535065","reported_name":"Kamdar Kim P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-04T22:03:47.000Z","date":"2026-02-04","kind":"other","planned":false,"acquired":true,"shares":3231,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the pro rata distribution from Domain Associates, LLC, and not a purchase or sale, without additional consideration."}],"balance_after":32573,"source":{"system":"sec-edgar","filing":"0001193125-26-037807","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312526037807/ownership.xml","form_type":"4"}},{"id":919101,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":30494,"kind":"person","name":"Kamdar Kim P.","position":1,"cik":"0001535065","reported_name":"Kamdar Kim P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-04T22:03:47.000Z","date":"2026-02-04","kind":"other","planned":false,"acquired":false,"shares":30920,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Domain Associates, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Domain Associates, LLC distributed these shares to its members on a pro rata basis, for no consideration."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001193125-26-037807","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312526037807/ownership.xml","form_type":"4"}},{"id":929921,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-27T22:12:53.000Z","date":"2026-01-27","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":2.97,"value":5940.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.92 to $3.06, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":82788,"source":{"system":"sec-edgar","filing":"0001193125-26-024859","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312526024859/ownership.xml","form_type":"4"}},{"id":957166,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-30T23:41:19.000Z","date":"2025-12-30","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":3,"value":6000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.88 to $3.25, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":84788,"source":{"system":"sec-edgar","filing":"0001193125-25-337380","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312525337380/ownership.xml","form_type":"4"}},{"id":972412,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":38053,"kind":"person","name":"Lindgardt Zhenya","position":1,"cik":"0001891299","reported_name":"Lindgardt Zhenya","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-12T00:58:14.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":4155,"price":3.31,"value":13753.05,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.28 to $3.38, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":763926,"source":{"system":"sec-edgar","filing":"0001193125-25-316503","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525316503/ownership.xml","form_type":"4"}},{"id":972411,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-12T00:57:40.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":1213,"price":3.31,"value":4015.03,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.28 to $3.38, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":167383,"source":{"system":"sec-edgar","filing":"0001193125-25-316501","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525316501/ownership.xml","form_type":"4"}},{"id":972410,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":38052,"kind":"person","name":"Jackson Benjamin","position":1,"cik":"0001779964","reported_name":"Jackson Benjamin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Class A Common Stock","published_at":"2025-12-12T00:57:15.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":892,"price":3.31,"value":2952.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.28 to $3.38, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":118866,"source":{"system":"sec-edgar","filing":"0001193125-25-316500","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525316500/ownership.xml","form_type":"4"}},{"id":972545,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-12T00:56:53.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":616,"price":3.31,"value":2038.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.28 to $3.38, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":86788,"source":{"system":"sec-edgar","filing":"0001193125-25-316499","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312525316499/ownership.xml","form_type":"4"}},{"id":972409,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49336,"kind":"person","name":"Boniface John J.","position":1,"cik":"0001870674","reported_name":"Boniface John J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-12T00:56:37.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":1332,"price":3.31,"value":4408.92,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.28 to $3.38, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 3 shares of Class A Common Stock purchased pursuant to the Sera Prognostics, Inc. 2021 Employee Stock Purchase Plan (\"ESPP\"), for the purchase period of June 2, 2025 to November 28, 2025."}],"balance_after":150397,"source":{"system":"sec-edgar","filing":"0001193125-25-316498","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525316498/ownership.xml","form_type":"4"}},{"id":972408,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":305,"kind":"person","name":"Aerts Austin","position":1,"cik":"0001979974","reported_name":"Aerts Austin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-12T00:56:18.000Z","date":"2025-12-10","kind":"sale","planned":false,"acquired":false,"shares":873,"price":3.31,"value":2889.63,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.28 to $3.38, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":272214,"source":{"system":"sec-edgar","filing":"0001193125-25-316496","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525316496/ownership.xml","form_type":"4"}},{"id":974090,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":38053,"kind":"person","name":"Lindgardt Zhenya","position":1,"cik":"0001891299","reported_name":"Lindgardt Zhenya","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-11T00:24:24.000Z","date":"2025-12-09","kind":"sale","planned":false,"acquired":false,"shares":28215,"price":3.04,"value":85773.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.91 to $3.10, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":768081,"source":{"system":"sec-edgar","filing":"0001193125-25-314613","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525314613/ownership.xml","form_type":"4"}},{"id":974089,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":305,"kind":"person","name":"Aerts Austin","position":1,"cik":"0001979974","reported_name":"Aerts Austin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-11T00:24:11.000Z","date":"2025-12-09","kind":"sale","planned":false,"acquired":false,"shares":5232,"price":3.04,"value":15905.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.91 to $3.10, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":273087,"source":{"system":"sec-edgar","filing":"0001193125-25-314611","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525314611/ownership.xml","form_type":"4"}},{"id":977412,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":30512,"kind":"person","name":"Lawrence Sandra AJ","position":1,"cik":"0001306386","reported_name":"Lawrence Sandra AJ","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2025-12-09T00:06:29.000Z","date":"2025-12-08","kind":"sale","planned":true,"acquired":false,"shares":1560,"price":3.05,"value":4758.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.99 to $3.11, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":19593,"source":{"system":"sec-edgar","filing":"0001193125-25-311559","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1306386/000119312525311559/ownership.xml","form_type":"4"}},{"id":978777,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":30495,"kind":"person","name":"Mirza Mansoor Raza","position":1,"cik":"0001588389","reported_name":"Mirza Mansoor Raza","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2025-12-05T22:25:31.000Z","date":"2025-12-05","kind":"sale","planned":false,"acquired":false,"shares":292,"price":3.05,"value":890.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.01 to $3.08, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":57740,"source":{"system":"sec-edgar","filing":"0001193125-25-309950","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525309950/ownership.xml","form_type":"4"}},{"id":981379,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-03T21:14:36.000Z","date":"2025-12-02","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":2.93,"value":5860.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.81 to $3.10, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":87404,"source":{"system":"sec-edgar","filing":"0001193125-25-306710","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312525306710/ownership.xml","form_type":"4"}},{"id":981141,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-12-03T21:14:21.000Z","date":"2025-12-02","kind":"exercise","planned":false,"acquired":false,"shares":32203,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares subject to this option are fully vested and exercisable."}],"balance_after":0,"derivative":{"exercise_price":1.62,"expiration_date":"2025-12-11","underlying":"Class A Common Stock","underlying_shares":34189},"source":{"system":"sec-edgar","filing":"0001193125-25-306708","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525306708/ownership.xml","form_type":"4"}},{"id":981140,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-03T21:14:21.000Z","date":"2025-12-02","kind":"sale","planned":false,"acquired":false,"shares":32203,"price":2.94,"value":94676.82,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.79 to $3.14, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":168596,"source":{"system":"sec-edgar","filing":"0001193125-25-306708","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525306708/ownership.xml","form_type":"4"}},{"id":981139,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-03T21:14:21.000Z","date":"2025-12-02","kind":"exercise","planned":false,"acquired":true,"shares":32203,"price":1.62,"value":52168.86,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This Form 4 reports the exercise of an employee stock option by the Reporting Persion that was granted approximately 10 years ago and that would otherwise expire on December 11, 2025 if not exercised during the issuer's open trading window for insiders."}],"balance_after":200799,"source":{"system":"sec-edgar","filing":"0001193125-25-306708","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525306708/ownership.xml","form_type":"4"}},{"id":986636,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-11-26T23:53:14.000Z","date":"2025-11-26","kind":"exercise","planned":true,"acquired":false,"shares":1986,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares subject to this option are fully vested and exercisable."}],"balance_after":32203,"derivative":{"exercise_price":1.62,"expiration_date":"2025-12-11","underlying":"Class A Common Stock","underlying_shares":34189},"source":{"system":"sec-edgar","filing":"0001193125-25-300940","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525300940/ownership.xml","form_type":"4"}},{"id":986635,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-26T23:53:14.000Z","date":"2025-11-26","kind":"sale","planned":true,"acquired":false,"shares":1986,"price":3.51,"value":6970.86,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.49 to $3.55, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":168596,"source":{"system":"sec-edgar","filing":"0001193125-25-300940","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525300940/ownership.xml","form_type":"4"}},{"id":986634,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-26T23:53:14.000Z","date":"2025-11-26","kind":"exercise","planned":true,"acquired":true,"shares":1986,"price":1.62,"value":3217.32,"ownership":{"direct":true},"balance_after":170582,"source":{"system":"sec-edgar","filing":"0001193125-25-300940","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525300940/ownership.xml","form_type":"4"}},{"id":1001616,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":38053,"kind":"person","name":"Lindgardt Zhenya","position":1,"cik":"0001891299","reported_name":"Lindgardt Zhenya","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-12T21:25:00.000Z","date":"2025-11-10","kind":"sale","planned":false,"acquired":false,"shares":11594,"price":2.62,"value":30376.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.30 to $3.04, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":796296,"source":{"system":"sec-edgar","filing":"0001193125-25-277711","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525277711/ownership.xml","form_type":"4"}},{"id":1001615,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49337,"kind":"person","name":"Kearney Paul","position":1,"cik":"0001888075","reported_name":"Kearney Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Data Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-12T21:24:46.000Z","date":"2025-11-10","kind":"sale","planned":false,"acquired":false,"shares":7073,"price":2.62,"value":18531.26,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.30 to $2.62, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":168596,"source":{"system":"sec-edgar","filing":"0001193125-25-277709","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525277709/ownership.xml","form_type":"4"}},{"id":1001614,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":38052,"kind":"person","name":"Jackson Benjamin","position":1,"cik":"0001779964","reported_name":"Jackson Benjamin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Class A Common Stock","published_at":"2025-11-12T21:24:31.000Z","date":"2025-11-10","kind":"sale","planned":false,"acquired":false,"shares":7059,"price":2.62,"value":18494.58,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.30 to $3.04, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":119758,"source":{"system":"sec-edgar","filing":"0001193125-25-277708","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525277708/ownership.xml","form_type":"4"}},{"id":1001886,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-12T21:24:12.000Z","date":"2025-11-10","kind":"sale","planned":false,"acquired":false,"shares":6528,"price":2.62,"value":17103.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.30 to $3.04, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":89404,"source":{"system":"sec-edgar","filing":"0001193125-25-277705","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312525277705/ownership.xml","form_type":"4"}},{"id":1001613,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49336,"kind":"person","name":"Boniface John J.","position":1,"cik":"0001870674","reported_name":"Boniface John J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-12T21:23:51.000Z","date":"2025-11-10","kind":"sale","planned":false,"acquired":false,"shares":7767,"price":2.62,"value":20349.54,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.30 to $3.04, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":151726,"source":{"system":"sec-edgar","filing":"0001193125-25-277703","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525277703/ownership.xml","form_type":"4"}},{"id":1001612,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":305,"kind":"person","name":"Aerts Austin","position":1,"cik":"0001979974","reported_name":"Aerts Austin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-12T21:23:35.000Z","date":"2025-11-10","kind":"sale","planned":false,"acquired":false,"shares":6351,"price":2.62,"value":16639.62,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.30 to $3.04, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade."}],"balance_after":278319,"source":{"system":"sec-edgar","filing":"0001193125-25-277702","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525277702/ownership.xml","form_type":"4"}},{"id":1005611,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":30495,"kind":"person","name":"Mirza Mansoor Raza","position":1,"cik":"0001588389","reported_name":"Mirza Mansoor Raza","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2025-11-06T22:05:45.000Z","date":"2025-11-05","kind":"sale","planned":false,"acquired":false,"shares":221,"price":3.04,"value":671.84,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units (\"RSUs\"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by \"sell to cover\" transactions and does not represent a discretionary transaction by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.03 to $3.05, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":58032,"source":{"system":"sec-edgar","filing":"0001193125-25-270062","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1534969/000119312525270062/ownership.xml","form_type":"4"}},{"id":1008047,"issuer":{"id":304,"kind":"organization","name":"SERA PROGNOSTICS, INC.","symbol":"SERA"},"owners":[{"id":49358,"kind":"person","name":"Harrison Robert Gardner","position":1,"cik":"0001421563","reported_name":"Harrison Robert Gardner","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-04T23:35:38.000Z","date":"2025-11-04","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":3.07,"value":6140.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.02 to $3.15, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":95932,"source":{"system":"sec-edgar","filing":"0001193125-25-265180","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312525265180/ownership.xml","form_type":"4"}}],"next_cursor":"2025-11-04T23:35:38.000000Z,1008047"}