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 June 30, 2025 · Filed June 30, 2025
Section 16 reporting ended · disclosed 2025-06-30. 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 |
|---|---|---|---|---|---|---|
| June 05, 2025 Filed Jun 6, 2025 22:40 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 25,000 | $0.00 Strike: $1.60 | $0.00 |
DisclosureSEC source: 0000950170-25-083338 · ownership.xml · derivative · entry 2 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,000 Underlying: Class A Common Stock · 25,000 shares Expires 2035-06-05 F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025. Read SEC document |
| June 05, 2025 Filed Jun 6, 2025 22:40 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 15,596 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-083338 · ownership.xml · nonDerivative · entry 1 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,713 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer. Read SEC document |
| June 06, 2024 Filed Jun 7, 2024 20:32 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 10,549 | $0.00 Strike: $8.43 | $0.00 |
DisclosureSEC source: 0001534969-24-000135 · wk-form4_1717792336.xml · derivative · entry 2 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,549 Underlying: Class A Common Stock · 10,549 shares Expires 2034-06-06 F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 6, 2024, subject to the reporting person continuing to provide services to the issuer. Read SEC document |
| June 06, 2024 Filed Jun 7, 2024 20:32 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantClass A Common Stock | 7,117 | $0.00 | $0.00 |
DisclosureSEC source: 0001534969-24-000135 · wk-form4_1717792336.xml · nonDerivative · entry 1 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,117 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 6, 2024, subject to the reporting person continuing to provide services to the issuer. Read SEC document |
| June 08, 2023 Filed Jul 7, 2023 20:19 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 63,265 | $0.00 Strike: $3.00 | $0.00 |
DisclosureSEC source: 0001534969-23-000071 · wk-form4_1688761127.xml · derivative · entry 1 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 63,265 Underlying: Class A Common Stock · 63,265 shares Expires 2033-06-08 F1 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 8, 2023. Read SEC document |
| June 03, 2022 Filed Jun 6, 2022 20:59 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | GrantStock Option (right to buy) · Derivative | 149,675 | $0.00 Strike: $1.35 | $0.00 |
DisclosureSEC source: 0001534969-22-000089 · wf-form4_165454914652337.xml · derivative · entry 1 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 149,675 Underlying: Class A Common Stock · 149,675 shares Expires 2032-06-03 F1 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 3, 2022. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionSeries D Preferred Stock · Derivative | 35,375 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · derivative · entry 10 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 0 Underlying: Class A Common Stock · 35,375 shares Expires not disclosed 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. F6 · derivative.exercise_price: The Issuer's Series D Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $9.02 per share. The Series D Preferred Stock has no expiration date. F7 · derivative.exercise_date: The shares of preferred stock automatically converted into the Issuer's Class A Common Stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering, which became effective on July 19, 2021. F6 · derivative.expiration_date: The Issuer's Series D Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $9.02 per share. The Series D Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionSeries C-1 Preferred Stock · Derivative | 13,335 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · derivative · entry 9 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 0 Underlying: Class A Common Stock · 13,335 shares Expires not disclosed 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. F5 · derivative.exercise_price: The Issuer's Series C-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $12.37 per share. The Series C-1 Preferred Stock has no expiration date. F7 · derivative.exercise_date: The shares of preferred stock automatically converted into the Issuer's Class A Common Stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering, which became effective on July 19, 2021. F5 · derivative.expiration_date: The Issuer's Series C-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $12.37 per share. The Series C-1 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionSeries B-2 Preferred Stock · Derivative | 2,970 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · derivative · entry 8 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 0 Underlying: Class A Common Stock · 2,970 shares Expires not disclosed 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_price: The Issuer's Series B-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $8.32 per share. The Series B-2 Preferred Stock has no expiration date. F7 · derivative.exercise_date: The shares of preferred stock automatically converted into the Issuer's Class A Common Stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering, which became effective on July 19, 2021. F4 · derivative.expiration_date: The Issuer's Series B-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $8.32 per share. The Series B-2 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionSeries B-1 Preferred Stock · Derivative | 1,501 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · derivative · entry 7 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 0 Underlying: Class A Common Stock · 1,501 shares Expires not disclosed 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_price: The Issuer's Series B-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series B-1 Preferred Stock has no expiration date. F7 · derivative.exercise_date: The shares of preferred stock automatically converted into the Issuer's Class A Common Stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering, which became effective on July 19, 2021. F3 · derivative.expiration_date: The Issuer's Series B-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series B-1 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionSeries A-2 Preferred Stock · Derivative | 9,824 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · derivative · entry 6 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 0 Underlying: Class A Common Stock · 9,824 shares Expires not disclosed 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_price: The Issuer's Series A-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series A-2 Preferred Stock has no expiration date. F7 · derivative.exercise_date: The shares of preferred stock automatically converted into the Issuer's Class A Common Stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering, which became effective on July 19, 2021. F1 · derivative.expiration_date: The Issuer's Series A-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series A-2 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionClass A Common Stock | 35,375 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · nonDerivative · entry 5 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 100,554 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. F6 · price: The Issuer's Series D Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $9.02 per share. The Series D Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionClass A Common Stock | 13,335 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · nonDerivative · entry 4 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 65,179 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. F5 · price: The Issuer's Series C-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $12.37 per share. The Series C-1 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionClass A Common Stock | 2,970 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · nonDerivative · entry 3 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 51,844 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 · price: The Issuer's Series B-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $8.32 per share. The Series B-2 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionClass A Common Stock | 1,501 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · nonDerivative · entry 2 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 48,874 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 · price: The Issuer's Series B-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series B-1 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. Read SEC document |
| July 19, 2021 Filed Jul 21, 2021 22:01 UTC | SERA PROGNOSTICS, INC. SERA · Entity 304 | ConversionClass A Common Stock | 9,824 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-21-094518 · tm2122781-2_4seq1.xml · nonDerivative · entry 1 Trimble Ryan · CIK 0001871513 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · Held by The Trimble Trust Disclosed balance after: 47,373 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 · price: The Issuer's Series A-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series A-2 Preferred Stock has no expiration date. F2 · ownership.nature: Mr. Trimble is the Trustee for The Trimble Trust and may be deemed to beneficially own the shares held by The Trimble Trust. 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.