| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kearney Paul | Chief Data Officer | C/O SERA PROGNOSTICS, INC., 2749 EAST PARLEYS WAY, SUITE 200, SALT LAKE CITY | /s/ Benjamin G. Jackson, Attorney-in-fact | 03 Dec 2025 | 0001888075 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SERA | Class A Common Stock | Options Exercise | $52,169 | +32,203 | +19% | $1.62 | 200,799 | 02 Dec 2025 | Direct | F1 |
| transaction | SERA | Class A Common Stock | Sale | $94,677 | -32,203 | -16% | $2.94 | 168,596 | 02 Dec 2025 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SERA | Stock Option (right to buy) | Options Exercise | $0 | -32,203 | -100% | $0.000000 | 0 | 02 Dec 2025 | Class A Common Stock | 34,189 | $1.62 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | This Form 4 reports the exercise of an employee stock option by the Reporting Persion that was granted approximately 10 years ago and that would otherwise expire on December 11, 2025 if not exercised during the issuer's open trading window for insiders. |
| F2 | The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.79 to $3.14, 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. |
| F3 | The shares subject to this option are fully vested and exercisable. |