person · Reporting owner
Harrison Robert Gardner
Disclosed activity across 1 company
Sign in to followReported 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 | 716 | $2.04 | $1,460.64 |
DisclosureSEC source: 0001193125-26-104707 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 76,712 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 | 3,360 | $1.96 | $6,585.60 |
DisclosureSEC source: 0001193125-26-100528 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 77,428 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 |
| February 24, 2026 Filed Feb 24, 2026 23:10 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $2.34 | $4,680.00 |
DisclosureSEC source: 0001193125-26-067712 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 80,788 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 May 21, 2025. F2 · price: 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. Read SEC document |
| January 27, 2026 Filed Jan 27, 2026 22:12 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $2.97 | $5,940.00 |
DisclosureSEC source: 0001193125-26-024859 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 82,788 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 May 21, 2025. F2 · price: 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. Read SEC document |
| December 30, 2025 Filed Dec 30, 2025 23:41 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $3.00 | $6,000.00 |
DisclosureSEC source: 0001193125-25-337380 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 84,788 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 May 21, 2025. F2 · price: 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. Read SEC document |
| December 10, 2025 Filed Dec 12, 2025 00:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 616 | $3.31 | $2,038.96 |
DisclosureSEC source: 0001193125-25-316499 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 86,788 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. Read SEC document |
| December 02, 2025 Filed Dec 3, 2025 21:14 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $2.93 | $5,860.00 |
DisclosureSEC source: 0001193125-25-306710 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 87,404 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 May 21, 2025. F2 · price: 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. Read SEC document |
| November 10, 2025 Filed Nov 12, 2025 21:24 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 6,528 | $2.62 | $17,103.36 |
DisclosureSEC source: 0001193125-25-277705 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 89,404 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 |
| November 04, 2025 Filed Nov 4, 2025 23:35 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $3.07 | $6,140.00 |
DisclosureSEC source: 0001193125-25-265180 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 95,932 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 May 21, 2025. F2 · price: 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. Read SEC document |
| October 07, 2025 Filed Oct 8, 2025 20:35 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $3.18 | $6,360.00 |
DisclosureSEC source: 0001193125-25-234568 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 97,932 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 May 21, 2025. F2 · price: 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. Read SEC document |
| September 11, 2025 Filed Sep 12, 2025 20:35 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 645 | $3.13 | $2,018.85 |
DisclosureSEC source: 0000950170-25-114576 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 99,932 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 |
| September 09, 2025 Filed Sep 9, 2025 22:51 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,000 | $3.05 | $6,100.00 |
DisclosureSEC source: 0001421563-25-000009 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 100,577 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 May 21, 2025. F2 · price: 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. Read SEC document |
| August 20, 2025 Filed Aug 20, 2025 22:55 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 6,000 | $2.22 | $13,320.00 |
DisclosureSEC source: 0001421563-25-000007 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 102,577 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 May 21, 2025. F2 · price: 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. Read SEC document |
| August 08, 2025 Filed Aug 11, 2025 20:36 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,962 | $2.54 | $15,143.48 |
DisclosureSEC source: 0001421563-25-000005 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 108,577 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 00:12 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 667 | $1.48 | $987.16 |
DisclosureSEC source: 0000950170-25-085021 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 114,539 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 08, 2025 Filed May 9, 2025 23:17 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 6,551 | $2.44 | $15,984.44 |
DisclosureSEC source: 0000950170-25-068388 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 115,206 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 07, 2025 Filed Mar 10, 2025 21:26 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 3,874 | $4.16 | $16,115.84 |
DisclosureSEC source: 0000950170-25-036529 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 121,757 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 May 14, 2024. F2 · price: 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. Read SEC document |
| March 06, 2025 Filed Mar 8, 2025 00:29 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 3,251 | $4.16 | $13,524.16 |
DisclosureSEC source: 0000950170-25-035801 · ownership.xml · nonDerivative · entry 2 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 125,631 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 00:29 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 36,830 | $0.00 Strike: $4.20 | $0.00 |
DisclosureSEC source: 0000950170-25-035801 · ownership.xml · derivative · entry 3 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 36,830 Underlying: Class A Common Stock · 36,830 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 00:29 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 25,770 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-035801 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 128,882 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 13, 2025 Filed Feb 14, 2025 21:17 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 3,610 | $4.28 | $15,450.80 |
DisclosureSEC source: 0000950170-25-021248 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 103,112 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 May 14, 2024. F2 · price: 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. Read SEC document |
| February 12, 2025 Filed Feb 14, 2025 21:11 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 7,297 | $4.58 | $33,420.26 |
DisclosureSEC source: 0000950170-25-021187 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 106,722 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. Read SEC document |
| February 11, 2025 Filed Feb 14, 2025 00:45 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 554 | $3.97 | $2,199.38 |
DisclosureSEC source: 0000950170-25-020182 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 114,019 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 May 14, 2024. F2 · price: 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. Read SEC document |
| January 13, 2025 Filed Jan 15, 2025 02:12 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,264 | $6.47 | $14,648.08 |
DisclosureSEC source: 0000950170-25-005575 · ownership.xml · nonDerivative · entry 3 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 114,573 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 May 14, 2024. F4 · price: 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. Read SEC document |
| January 10, 2025 Filed Jan 15, 2025 02:12 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 1,837 | $8.01 | $14,714.37 |
DisclosureSEC source: 0000950170-25-005575 · ownership.xml · nonDerivative · entry 2 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 116,837 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 May 14, 2024. F3 · price: 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. Read SEC document |
| January 10, 2025 Filed Jan 15, 2025 02:12 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 12,372 | $7.30 | $90,315.60 |
DisclosureSEC source: 0000950170-25-005575 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 118,674 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 May 14, 2024. F2 · price: 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. 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: 0000950170-24-125644 · ownership.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 131,046 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 20:50 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,022 | $7.42 | $37,263.24 |
DisclosureSEC source: 0001534969-24-000165 · wk-form4_1723150247.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 135,773 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 21:40 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 4,902 | $9.59 | $47,010.18 |
DisclosureSEC source: 0001534969-24-000092 · wk-form4_1715377248.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 140,795 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 06, 2024 Filed Mar 7, 2024 21:15 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 2,138 | $9.02 | $19,284.76 |
DisclosureSEC source: 0001534969-24-000032 · wk-form4_1709846139.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 145,697 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 21:56 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,665 | $8.03 | $45,489.95 |
DisclosureSEC source: 0001534969-24-000009 · wk-form4_1707342992.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 147,835 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 |
| November 06, 2023 Filed Nov 8, 2023 21:16 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 125,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001534969-23-000113 · wk-form4_1699478174.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 153,500 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 |
| June 05, 2023 Filed Jun 6, 2023 20:07 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | SaleClass A Common Stock | 5,000 | $3.23 | $16,150.00 |
DisclosureSEC source: 0001534969-23-000059 · wk-form4_1686082069.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,500 F1 · balance_after: 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. 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 | 45,000 | $0.00 Strike: $3.80 | $0.00 |
DisclosureSEC source: 0001534969-23-000019 · wf-form4_167823663886064.xml · derivative · entry 2 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,000 Underlying: Class A Common Stock · 45,000 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 | 28,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001534969-23-000019 · wf-form4_167823663886064.xml · nonDerivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,500 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 |
| March 23, 2022 Filed Mar 25, 2022 20:34 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 33,698 | $0.00 Strike: $3.75 | $0.00 |
DisclosureSEC source: 0001534969-22-000021 · wf-form4_164824047308209.xml · derivative · entry 1 Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 33,698 Underlying: Class A Common Stock · 33,698 shares Expires 2032-03-23 F1 · derivative.exercise_date: 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. 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.