Sera Prognostics Inc is a health diagnostic company. It is a women's health company utilizing the proprietary proteomics and bioinformatics platform, and data resources to improve maternal and neonatal health by discovering, developing, and commercializing blood-based biomarker tests, and predictive analytic products and services. The Company operates as one operating segment, which is developing and commercializing its medical diagnostic products and services.
SERA Form 4 activity by transaction type, last 90 days
Form 4 transaction type
Transactions
Shares
Total value
Open-market sale
6
39,661
$80K
Grant or award
2
287,548
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
SERA insider transactions (Form 4)
48
106 Form 4 filings on record, the earliest from Oct 7, 2024, newest first. Filing history page 1 of 3.
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.03 to $2.05, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.00 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.00 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.00 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.00 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.00 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is September 10, 2026, and 1/12 of the remaining amount vests in… Full note on SEC EDGAR
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest in three annual installments beginning with July 10, 2027, subject to the Reporting Person… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): Each share is represented by a restricted stock unit ("RSU") granted pursuant to the issuer's Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of… Full note on SEC EDGAR
Footnote F2 (shares): Each share is represented by an additional RSU granted by the Board of Directors. These RSUs vest on the earlier of July 10, 2027 or the date of the issuer's next Annual Meeting of Stockholders, subject to the Reporting Person continuing to provide services to the issuer.
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.96 to $2.21, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F1 (shares): 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… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.96 to $2.21, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any… Full note on SEC EDGAR
Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.10 to $2.23, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the… Full note on SEC EDGAR
Footnote F1 (shares): 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, 2026, subject to the Reporting… Full note on SEC EDGAR
An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
SERA PROGNOSTICS, INC. (SERA) had 8 insider filings in the last 90 days, with the most recent on 2026-10-13. The full record for SERA runs to 106 Form 4 filings, the earliest from 2024-10-07. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying SERA stock?
No insider purchases of SERA were filed in the last 90 days.
How many insiders are selling SERA stock?
6 insider sales of SERA were filed in the last 90 days, totaling $80K.
Where can I see SERA SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects SERA Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.