{"transactions":[{"id":845910,"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":"2026-03-13T00:12:37.000Z","date":"2026-03-11","kind":"sale","planned":false,"acquired":false,"shares":716,"price":2.04,"value":1460.64,"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 $1.90 to $2.30, 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":76712,"source":{"system":"sec-edgar","filing":"0001193125-26-104707","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312526104707/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":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":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":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":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":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":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"}},{"id":1021379,"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":"2025-10-08T20:35:41.000Z","date":"2025-10-07","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":3.18,"value":6360.0,"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 $3.04 to $3.28, 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":97932,"source":{"system":"sec-edgar","filing":"0001193125-25-234568","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000119312525234568/ownership.xml","form_type":"4"}},{"id":1041370,"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":"2025-09-12T20:35:20.000Z","date":"2025-09-11","kind":"sale","planned":false,"acquired":false,"shares":645,"price":3.13,"value":2018.85,"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 $3.05 to $3.24, 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":99932,"source":{"system":"sec-edgar","filing":"0000950170-25-114576","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025114576/ownership.xml","form_type":"4"}},{"id":1044722,"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":"2025-09-09T22:51:13.000Z","date":"2025-09-09","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":3.05,"value":6100.0,"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 $2.99 to $3.12, 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":100577,"source":{"system":"sec-edgar","filing":"0001421563-25-000009","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000142156325000009/ownership.xml","form_type":"4"}},{"id":1060136,"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":"2025-08-20T22:55:51.000Z","date":"2025-08-20","kind":"sale","planned":true,"acquired":false,"shares":6000,"price":2.22,"value":13320.0,"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 $2.17 to $2.25, 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":102577,"source":{"system":"sec-edgar","filing":"0001421563-25-000007","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000142156325000007/ownership.xml","form_type":"4"}},{"id":1070029,"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":"2025-08-11T20:36:45.000Z","date":"2025-08-08","kind":"sale","planned":false,"acquired":false,"shares":5962,"price":2.54,"value":15143.48,"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 $2.28 to $2.73, 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":108577,"source":{"system":"sec-edgar","filing":"0001421563-25-000005","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000142156325000005/ownership.xml","form_type":"4"}},{"id":1114806,"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":"2025-06-12T00:12:49.000Z","date":"2025-06-10","kind":"sale","planned":false,"acquired":false,"shares":667,"price":1.48,"value":987.16,"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 $1.45 to $1.51, 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":114539,"source":{"system":"sec-edgar","filing":"0000950170-25-085021","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025085021/ownership.xml","form_type":"4"}},{"id":1153632,"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":"2025-05-09T23:17:21.000Z","date":"2025-05-08","kind":"sale","planned":false,"acquired":false,"shares":6551,"price":2.44,"value":15984.44,"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 $2.10 to $2.78, 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":115206,"source":{"system":"sec-edgar","filing":"0000950170-25-068388","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025068388/ownership.xml","form_type":"4"}},{"id":1214916,"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":"2025-03-10T21:26:39.000Z","date":"2025-03-07","kind":"sale","planned":true,"acquired":false,"shares":3874,"price":4.16,"value":16115.84,"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 14, 2024."},{"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 $4.02 to $4.33, 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":121757,"source":{"system":"sec-edgar","filing":"0000950170-25-036529","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025036529/ownership.xml","form_type":"4"}},{"id":1217244,"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":"Stock Option (right to buy)","published_at":"2025-03-08T00:29:15.000Z","date":"2025-03-05","kind":"grant","planned":false,"acquired":true,"shares":36830,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These stock options vest over four years as follows: 1/48 of the original grant amount vests in monthly installments for four years following the vesting commencement date, which is March 10, 2025, subject to the Reporting Person continuing to provide services to the issuer."}],"balance_after":36830,"derivative":{"exercise_price":4.2,"expiration_date":"2035-03-05","underlying":"Class A Common Stock","underlying_shares":36830},"source":{"system":"sec-edgar","filing":"0000950170-25-035801","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025035801/ownership.xml","form_type":"4"}},{"id":1217243,"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":"2025-03-08T00:29:15.000Z","date":"2025-03-06","kind":"sale","planned":false,"acquired":false,"shares":3251,"price":4.16,"value":13524.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","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":"F3","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 $4.07 to $4.24, 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":125631,"source":{"system":"sec-edgar","filing":"0000950170-25-035801","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025035801/ownership.xml","form_type":"4"}},{"id":1217242,"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":"2025-03-08T00:29:15.000Z","date":"2025-03-05","kind":"grant","planned":false,"acquired":true,"shares":25770,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each share is represented by a restricted stock unit (\"RSU\"). These RSUs vest over four years as follows: 1/16 of the original grant amount vests in quarterly installments for four years following the vesting commencement date, which is March 10, 2025, subject to the Reporting Person continuing to provide services to the issuer."}],"balance_after":128882,"source":{"system":"sec-edgar","filing":"0000950170-25-035801","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025035801/ownership.xml","form_type":"4"}},{"id":1267048,"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":"2025-02-14T21:17:16.000Z","date":"2025-02-13","kind":"sale","planned":true,"acquired":false,"shares":3610,"price":4.28,"value":15450.8,"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 14, 2024."},{"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 $4.20 to $4.36, 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":103112,"source":{"system":"sec-edgar","filing":"0000950170-25-021248","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025021248/ownership.xml","form_type":"4"}},{"id":1267049,"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":"2025-02-14T21:11:38.000Z","date":"2025-02-12","kind":"sale","planned":false,"acquired":false,"shares":7297,"price":4.58,"value":33420.26,"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 $4.14 to $5.09, 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":106722,"source":{"system":"sec-edgar","filing":"0000950170-25-021187","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025021187/ownership.xml","form_type":"4"}},{"id":1269466,"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":"2025-02-14T00:45:03.000Z","date":"2025-02-11","kind":"sale","planned":true,"acquired":false,"shares":554,"price":3.97,"value":2199.38,"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 14, 2024."},{"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 $3.92 to $3.99, 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":114019,"source":{"system":"sec-edgar","filing":"0000950170-25-020182","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025020182/ownership.xml","form_type":"4"}},{"id":1303362,"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":"2025-01-15T02:12:55.000Z","date":"2025-01-13","kind":"sale","planned":true,"acquired":false,"shares":2264,"price":6.47,"value":14648.08,"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 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.16 to $6.74, 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":114573,"source":{"system":"sec-edgar","filing":"0000950170-25-005575","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025005575/ownership.xml","form_type":"4"}},{"id":1303361,"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":"2025-01-15T02:12:55.000Z","date":"2025-01-10","kind":"sale","planned":true,"acquired":false,"shares":1837,"price":8.01,"value":14714.37,"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 14, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.93 to $8.13, 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":116837,"source":{"system":"sec-edgar","filing":"0000950170-25-005575","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025005575/ownership.xml","form_type":"4"}},{"id":1303360,"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":"2025-01-15T02:12:55.000Z","date":"2025-01-10","kind":"sale","planned":true,"acquired":false,"shares":12372,"price":7.3,"value":90315.6,"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 14, 2024."},{"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 $6.93 to $7.92, 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":118674,"source":{"system":"sec-edgar","filing":"0000950170-25-005575","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017025005575/ownership.xml","form_type":"4"}},{"id":1368733,"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":"2024-11-12T22:03:53.000Z","date":"2024-11-11","kind":"sale","planned":false,"acquired":false,"shares":4727,"price":7.32,"value":34601.64,"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 $6.30 to $8.74, 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":131046,"source":{"system":"sec-edgar","filing":"0000950170-24-125644","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000095017024125644/ownership.xml","form_type":"4"}},{"id":1437779,"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":"2024-08-08T20:50:54.000Z","date":"2024-08-07","kind":"sale","planned":false,"acquired":false,"shares":5022,"price":7.42,"value":37263.24,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","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 $6.94 to $7.58, 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":135773,"source":{"system":"sec-edgar","filing":"0001534969-24-000165","document":"wk-form4_1723150247.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496924000165/wk-form4_1723150247.xml","form_type":"4"}},{"id":1520545,"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":"2024-05-10T21:40:58.000Z","date":"2024-05-08","kind":"sale","planned":false,"acquired":false,"shares":4902,"price":9.59,"value":47010.18,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","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 $9.14 to $10.55, 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 with regard to the block trade."}],"balance_after":140795,"source":{"system":"sec-edgar","filing":"0001534969-24-000092","document":"wk-form4_1715377248.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496924000092/wk-form4_1715377248.xml","form_type":"4"}},{"id":1588967,"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":"2024-03-07T21:15:56.000Z","date":"2024-03-06","kind":"sale","planned":false,"acquired":false,"shares":2138,"price":9.02,"value":19284.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","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 $8.78 to $9.45, 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 with regard to the block trade."}],"balance_after":145697,"source":{"system":"sec-edgar","filing":"0001534969-24-000032","document":"wk-form4_1709846139.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496924000032/wk-form4_1709846139.xml","form_type":"4"}},{"id":1655175,"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":"2024-02-07T21:56:41.000Z","date":"2024-02-06","kind":"sale","planned":false,"acquired":false,"shares":5665,"price":8.03,"value":45489.95,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","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 $8.00 to $8.11, 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 with regard to the block trade."}],"balance_after":147835,"source":{"system":"sec-edgar","filing":"0001534969-24-000009","document":"wk-form4_1707342992.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496924000009/wk-form4_1707342992.xml","form_type":"4"}},{"id":1746677,"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":"2023-11-08T21:16:27.000Z","date":"2023-11-06","kind":"grant","planned":false,"acquired":true,"shares":125000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each share is represented by a restricted stock unit (\"RSU\"). These RSUs vest over two years as follows: 1/8 of the original grant amount vests in quarterly installments for two years following the grant date, subject to the reporting person continuing to provide services to the issuer."}],"balance_after":153500,"source":{"system":"sec-edgar","filing":"0001534969-23-000113","document":"wk-form4_1699478174.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496923000113/wk-form4_1699478174.xml","form_type":"4"}},{"id":1865050,"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":"2023-06-06T20:07:59.000Z","date":"2023-06-05","kind":"sale","planned":false,"acquired":false,"shares":5000,"price":3.23,"value":16150.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The Reporting Person purchased 5,000 shares of Class A Common Stock pursuant to the Sera Prognostics, Inc. 2021 Employee Stock Purchase Plan (\"ESPP\"), for the purchase period of December 1, 2022 to May 31, 2023."}],"balance_after":28500,"source":{"system":"sec-edgar","filing":"0001534969-23-000059","document":"wk-form4_1686082069.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496923000059/wk-form4_1686082069.xml","form_type":"4"}},{"id":1965605,"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":"Stock Option (right to buy)","published_at":"2023-03-08T00:50:52.000Z","date":"2023-03-06","kind":"grant","acquired":true,"shares":45000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These stock options vest over four years as follows: 1/48 of the original grant amount vests in monthly installments for four years following the vesting commencement date, which is March 6, 2023, subject to the reporting person continuing to provide services to the issuer."}],"balance_after":45000,"derivative":{"exercise_price":3.8,"expiration_date":"2033-03-06","underlying":"Class A Common Stock","underlying_shares":45000},"source":{"system":"sec-edgar","filing":"0001534969-23-000019","document":"wf-form4_167823663886064.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496923000019/wf-form4_167823663886064.xml","form_type":"4"}},{"id":1965604,"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":"2023-03-08T00:50:52.000Z","date":"2023-03-06","kind":"grant","acquired":true,"shares":28500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each share is represented by a restricted stock unit (\"RSU\"). These RSUs vest over four years as follows: 1/4 of the original grant amount vests in annual installments for four years following the vesting commencement date, which is March 6, 2023, subject to the reporting person continuing to provide services to the issuer."}],"balance_after":28500,"source":{"system":"sec-edgar","filing":"0001534969-23-000019","document":"wf-form4_167823663886064.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496923000019/wf-form4_167823663886064.xml","form_type":"4"}},{"id":2317624,"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":"Stock Option (right to buy)","published_at":"2022-03-25T20:34:57.000Z","date":"2022-03-23","kind":"grant","acquired":true,"shares":33698,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These stock options vest over four years beginning on the grant date of March 23, 2022 as follows: 15% of the original grant amount vests in equal monthly installments over the first year following the grant date, 20% of the original grant amount vests in equal monthly installments over the second year following the grant date, 25% of the original grant amount vests in equal monthly installments over the third year following the grant date, and 40% of the original grant amount vests in equal monthly installments over the fourth year following the grant date, subject to the reporting person continuing to provide services to the issuer."}],"balance_after":33698,"derivative":{"exercise_price":3.75,"expiration_date":"2032-03-23","underlying":"Class A Common Stock","underlying_shares":33698},"source":{"system":"sec-edgar","filing":"0001534969-22-000021","document":"wf-form4_164824047308209.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1421563/000153496922000021/wf-form4_164824047308209.xml","form_type":"4"}}]}