Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
SERA PROGNOSTICS, INC.
Report date March 12, 2026 · Filed May 06, 2026
Section 16 reporting ended · disclosed 2026-05-06. Current position is not established by this disclosure.
No balance rows disclosed in this filing.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 11, 2026 Filed Mar 13, 2026 00:12 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,517 | $2.04 | $3,094.68 |
DisclosureSEC source: 0001193125-26-104705 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 145,842 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $1.90 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. Read SEC document |
| March 09, 2026 Filed Mar 10, 2026 21:53 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 3,038 | $1.96 | $5,954.48 |
DisclosureSEC source: 0001193125-26-100527 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 147,359 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $2.03, 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. Read SEC document |
| December 10, 2025 Filed Dec 12, 2025 00:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,332 | $3.31 | $4,408.92 |
DisclosureSEC source: 0001193125-25-316498 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 150,397 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $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. F3 · balance_after: 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. Read SEC document |
| November 10, 2025 Filed Nov 12, 2025 21:23 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 7,767 | $2.62 | $20,349.54 |
DisclosureSEC source: 0001193125-25-277703 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 151,726 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $2.30 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. Read SEC document |
| September 11, 2025 Filed Sep 12, 2025 20:35 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,395 | $3.13 | $4,366.35 |
DisclosureSEC source: 0000950170-25-114575 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 159,493 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $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. Read SEC document |
| August 08, 2025 Filed Aug 11, 2025 20:36 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 7,094 | $2.54 | $18,018.76 |
DisclosureSEC source: 0001870674-25-000005 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 160,888 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $2.28 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. Read SEC document |
| June 10, 2025 Filed Jun 12, 2025 22:54 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,439 | $1.48 | $2,129.72 |
DisclosureSEC source: 0000950170-25-085692 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 167,982 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $1.45 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. Read SEC document |
| May 30, 2025 Filed Jun 12, 2025 22:52 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 3,703 | $1.33 | $4,924.99 |
DisclosureSEC source: 0000950170-25-085687 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 169,421 F1 · kind: These shares were purchased pursuant to the Sera Prognostics, Inc. 2021 Employee Stock Purchase Plan ("ESPP"), for the purchase period of December 2, 2024 to May 30, 2025, in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c). Read SEC document |
| May 08, 2025 Filed May 9, 2025 23:17 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,132 | $2.44 | $12,522.08 |
DisclosureSEC source: 0000950170-25-068387 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 165,718 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $2.10 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. Read SEC document |
| March 06, 2025 Filed Mar 8, 2025 00:28 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,044 | $4.16 | $8,503.04 |
DisclosureSEC source: 0000950170-25-035800 · ownership.xml · nonDerivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 170,850 F2 · 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. F3 · 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 $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. Read SEC document |
| March 05, 2025 Filed Mar 8, 2025 00:28 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 67,810 | $0.00 Strike: $4.20 | $0.00 |
DisclosureSEC source: 0000950170-25-035800 · ownership.xml · derivative · entry 3 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 67,810 Underlying: Class A Common Stock · 67,810 shares Expires 2035-03-05 F4 · derivative.exercise_date: 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. Read SEC document |
| March 05, 2025 Filed Mar 8, 2025 00:28 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 47,010 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-035800 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 172,894 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, 2025, subject to the Reporting Person continuing to provide services to the issuer. Read SEC document |
| February 12, 2025 Filed Feb 14, 2025 21:11 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,915 | $4.58 | $27,090.70 |
DisclosureSEC source: 0000950170-25-021185 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 125,884 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $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. F3 · balance_after: Includes 5,000 and 1,679 shares of Class A Common Stock purchased pursuant to the Sera Prognostics, Inc. 2021 Employee Stock Purchase Plan ("ESPP"), for the purchase periods of December 1, 2023 to May 31, 2024 and June 3, 2024 to November 30, 2024, respectively. Read SEC document |
| November 11, 2024 Filed Nov 12, 2024 22:03 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 4,727 | $7.32 | $34,601.64 |
DisclosureSEC source: 0000950170-24-125641 · ownership.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 125,120 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 funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person. 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 $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. Read SEC document |
| August 07, 2024 Filed Aug 8, 2024 20:51 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,022 | $7.42 | $37,263.24 |
DisclosureSEC source: 0001534969-24-000166 · wk-form4_1723150258.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 129,847 F1 · kind: 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. 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 $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. Read SEC document |
| May 08, 2024 Filed May 10, 2024 21:41 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 4,902 | $9.59 | $47,010.18 |
DisclosureSEC source: 0001534969-24-000096 · wk-form4_1715377301.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 134,869 F1 · kind: 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. 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 $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. Read SEC document |
| March 28, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionStock Option (right to buy) · Derivative | 24,474 | $0.00 Strike: $0.91 | $0.00 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · derivative · entry 7 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 24,474 shares Expires 2024-12-29 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable. Read SEC document |
| March 28, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 24,474 | $9.04 | $221,244.96 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · nonDerivative · entry 5 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 139,771 F1 · kind: 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 December 15, 2023. F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.58 to $9.24, 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. Read SEC document |
| March 28, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionClass A Common Stock | 24,474 | $0.91 | $22,271.34 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · nonDerivative · entry 4 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 164,245 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 27, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionStock Option (right to buy) · Derivative | 48,909 | $0.00 Strike: $0.91 | $0.00 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · derivative · entry 6 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 24,474 Underlying: Class A Common Stock · 48,909 shares Expires 2024-12-29 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable. Read SEC document |
| March 27, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 48,909 | $9.62 | $470,504.58 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · nonDerivative · entry 3 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 139,771 F1 · kind: 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 December 15, 2023. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.06 to $9.85, 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. Read SEC document |
| March 27, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionClass A Common Stock | 48,909 | $0.91 | $44,507.19 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · nonDerivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 188,680 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 27, 2024 Filed Mar 28, 2024 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 3,753 | $9.62 | $36,103.86 |
DisclosureSEC source: 0001534969-24-000073 · wk-form4_1711662978.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 139,771 F1 · kind: 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 December 15, 2023. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.06 to $9.85, 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. Read SEC document |
| March 26, 2024 Filed Mar 26, 2024 21:38 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 21,438 | $9.55 | $204,732.90 |
DisclosureSEC source: 0001534969-24-000061 · wk-form4_1711489091.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 143,524 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 15, 2023. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.17 to $9.83, 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. Read SEC document |
| March 25, 2024 Filed Mar 26, 2024 20:20 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 22,163 | $9.10 | $201,683.30 |
DisclosureSEC source: 0001534969-24-000059 · wk-form4_1711484417.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 164,962 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 15, 2023. Read SEC document |
| March 06, 2024 Filed Mar 7, 2024 21:16 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,664 | $9.02 | $15,009.28 |
DisclosureSEC source: 0001534969-24-000035 · wk-form4_1709846184.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 187,125 F1 · kind: 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. 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 $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. Read SEC document |
| February 06, 2024 Filed Feb 7, 2024 21:57 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,665 | $8.03 | $45,489.95 |
DisclosureSEC source: 0001534969-24-000011 · wk-form4_1707343015.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 188,789 F1 · kind: 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. 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 $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. Read SEC document |
| December 07, 2023 Filed Dec 8, 2023 02:35 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,000 | $4.80 | $24,000.00 |
DisclosureSEC source: 0001534969-23-000124 · wk-form4_1702002900.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 194,454 F1 · balance_after: Includes 5,000 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 1, 2023 to November 30, 2023. Read SEC document |
| November 06, 2023 Filed Nov 8, 2023 21:17 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 125,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001534969-23-000117 · wk-form4_1699478230.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 194,454 F1 · shares: 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. Read SEC document |
| March 06, 2023 Filed Mar 8, 2023 00:50 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 34,900 | $0.00 Strike: $3.80 | $0.00 |
DisclosureSEC source: 0001534969-23-000016 · wf-form4_167823659033280.xml · derivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,900 Underlying: Class A Common Stock · 34,900 shares Expires 2033-03-06 F2 · derivative.exercise_date: 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. Read SEC document |
| March 06, 2023 Filed Mar 8, 2023 00:50 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 22,100 | $0.00 | $0.00 |
DisclosureSEC source: 0001534969-23-000016 · wf-form4_167823659033280.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 69,454 F1 · shares: 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. Read SEC document |
| September 08, 2022 Filed Sep 9, 2022 20:17 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionStock Option (right to buy) · Derivative | 844 | $0.00 Strike: $0.73 | $0.00 |
DisclosureSEC source: 0001534969-22-000125 · wf-form4_166275463160358.xml · derivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 844 shares Expires 2022-09-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable. Read SEC document |
| September 08, 2022 Filed Sep 9, 2022 20:17 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionClass A Common Stock | 844 | $0.73 | $616.12 |
DisclosureSEC source: 0001534969-22-000125 · wf-form4_166275463160358.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 47,354 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| July 27, 2022 Filed Jul 27, 2022 22:54 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionStock Option (right to buy) · Derivative | 1,000 | $0.00 Strike: $0.73 | $0.00 |
DisclosureSEC source: 0001534969-22-000118 · wf-form4_165896241981247.xml · derivative · entry 4 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 844 Underlying: Class A Common Stock · 1,000 shares Expires 2022-09-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable. Read SEC document |
| July 27, 2022 Filed Jul 27, 2022 22:54 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,000 | $2.22 | $2,220.00 |
DisclosureSEC source: 0001534969-22-000118 · wf-form4_165896241981247.xml · nonDerivative · entry 3 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,510 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. Read SEC document |
| July 27, 2022 Filed Jul 27, 2022 22:54 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionClass A Common Stock | 1,000 | $0.73 | $730.00 |
DisclosureSEC source: 0001534969-22-000118 · wf-form4_165896241981247.xml · nonDerivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 47,510 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| July 26, 2022 Filed Jul 27, 2022 22:54 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $2.15 | $5,858.75 |
DisclosureSEC source: 0001534969-22-000118 · wf-form4_165896241981247.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,510 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.01 to $2.27, 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. Read SEC document |
| July 19, 2022 Filed Jul 19, 2022 23:38 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.86 | $5,068.50 |
DisclosureSEC source: 0001534969-22-000116 · wf-form4_165827385603500.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 49,235 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.81 to $1.93, 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. Read SEC document |
| July 12, 2022 Filed Jul 13, 2022 20:06 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.84 | $5,014.00 |
DisclosureSEC source: 0001534969-22-000114 · wf-form4_165774278495450.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 51,960 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.78 to $1.92, 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. Read SEC document |
| July 05, 2022 Filed Jul 5, 2022 22:37 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.63 | $4,441.75 |
DisclosureSEC source: 0001534969-22-000111 · wf-form4_165706061574192.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 54,685 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.59 to $1.74, 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. Read SEC document |
| June 29, 2022 Filed Jun 29, 2022 23:00 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionStock Option (right to buy) · Derivative | 1,000 | $0.00 Strike: $0.73 | $0.00 |
DisclosureSEC source: 0001534969-22-000109 · wf-form4_165654363063215.xml · derivative · entry 4 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,844 Underlying: Class A Common Stock · 1,000 shares Expires 2022-09-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable. Read SEC document |
| June 29, 2022 Filed Jun 29, 2022 23:00 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,000 | $1.72 | $1,720.00 |
DisclosureSEC source: 0001534969-22-000109 · wf-form4_165654363063215.xml · nonDerivative · entry 3 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 57,410 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. Read SEC document |
| June 29, 2022 Filed Jun 29, 2022 23:00 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionClass A Common Stock | 1,000 | $0.73 | $730.00 |
DisclosureSEC source: 0001534969-22-000109 · wf-form4_165654363063215.xml · nonDerivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 58,410 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| June 28, 2022 Filed Jun 29, 2022 23:00 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.89 | $5,150.25 |
DisclosureSEC source: 0001534969-22-000109 · wf-form4_165654363063215.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 57,410 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.70 to $2.57, 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. Read SEC document |
| June 21, 2022 Filed Jun 21, 2022 21:34 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.31 | $3,569.75 |
DisclosureSEC source: 0001534969-22-000098 · wf-form4_165584723965194.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 60,135 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.28 to $1.35, 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. Read SEC document |
| June 14, 2022 Filed Jun 16, 2022 20:19 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.21 | $3,297.25 |
DisclosureSEC source: 0001534969-22-000095 · wf-form4_165541073026801.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 62,860 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.16 to $1.28, 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. Read SEC document |
| June 07, 2022 Filed Jun 7, 2022 21:30 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,725 | $1.30 | $3,542.50 |
DisclosureSEC source: 0001534969-22-000092 · wf-form4_165463743913647.xml · nonDerivative · entry 1 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 65,585 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.29 to $1.34, 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. Read SEC document |
| June 01, 2022 Filed Jun 1, 2022 21:41 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionStock Option (right to buy) · Derivative | 1,000 | $0.00 Strike: $0.73 | $0.00 |
DisclosureSEC source: 0001534969-22-000076 · wf-form4_165411969787689.xml · derivative · entry 4 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,844 Underlying: Class A Common Stock · 1,000 shares Expires 2022-09-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable. Read SEC document |
| June 01, 2022 Filed Jun 1, 2022 21:41 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,000 | $1.36 | $1,360.00 |
DisclosureSEC source: 0001534969-22-000076 · wf-form4_165411969787689.xml · nonDerivative · entry 3 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 68,310 F1 · kind: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2021. F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.32 to $1.41, 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. Read SEC document |
| June 01, 2022 Filed Jun 1, 2022 21:41 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | Exercise / conversionClass A Common Stock | 1,000 | $0.73 | $730.00 |
DisclosureSEC source: 0001534969-22-000076 · wf-form4_165411969787689.xml · nonDerivative · entry 2 Boniface John J. · CIK 0001870674 · Chief Scientific Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 69,310 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.