J. Boniface John's most recent trade in Sera Prognostics Inc - Ordinary Shares Class A was a trade of 1,332 Class A Common Stock done at an average price of $3.3 . Disclosure was reported to the exchange on Dec. 10, 2025.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.31 per share. | 10 Dec 2025 | 1,332 | 150,397 | - | 3.3 | 4,409 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.62 per share. | 10 Nov 2025 | 7,767 | 151,726 | - | 2.6 | 20,350 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.13 per share. | 11 Sep 2025 | 1,395 | 159,493 | - | 3.1 | 4,366 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.54 per share. | 08 Aug 2025 | 7,094 | 160,888 | - | 2.5 | 18,019 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.48 per share. | 10 Jun 2025 | 1,439 | 167,982 | - | 1.5 | 2,130 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Grant, award, or other acquisition of securities at price $ 1.33 per share. | 30 May 2025 | 3,703 | 169,421 | - | 1.3 | 4,925 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.44 per share. | 08 May 2025 | 5,132 | 165,718 | - | 2.4 | 12,522 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Mar 2025 | 67,810 | 67,810 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Mar 2025 | 47,010 | 172,894 | - | 0 | Class A Common Stock | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 4.16 per share. | 05 Mar 2025 | 2,044 | 170,850 | - | 4.2 | 8,503 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 4.58 per share. | 12 Feb 2025 | 5,915 | 125,884 | - | 4.6 | 27,091 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 7.32 per share. | 11 Nov 2024 | 4,727 | 125,120 | - | 7.3 | 34,602 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 7.42 per share. | 07 Aug 2024 | 5,022 | 129,847 | - | 7.4 | 37,263 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.59 per share. | 08 May 2024 | 4,902 | 134,869 | - | 9.6 | 47,010 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | J. Boniface John | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 27 Mar 2024 | 48,909 | 24,474 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John Boniface J. | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.91 per share. | 27 Mar 2024 | 48,909 | 188,680 | - | 0.9 | 44,507 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | J. John Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.62 per share. | 27 Mar 2024 | 48,909 | 139,771 | - | 9.6 | 470,505 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Boniface John J. | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 27 Mar 2024 | 24,474 | 0 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | J. John Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.91 per share. | 27 Mar 2024 | 24,474 | 164,245 | - | 0.9 | 22,271 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.04 per share. | 27 Mar 2024 | 24,474 | 139,771 | - | 9.0 | 221,245 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.62 per share. | 27 Mar 2024 | 3,753 | 139,771 | - | 9.6 | 36,104 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.55 per share. | 26 Mar 2024 | 21,438 | 143,524 | - | 9.6 | 204,733 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.10 per share. | 25 Mar 2024 | 22,163 | 164,962 | - | 9.1 | 201,683 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 9.02 per share. | 06 Mar 2024 | 1,664 | 187,125 | - | 9.0 | 15,009 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Boniface J. John | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 8.03 per share. | 06 Feb 2024 | 5,665 | 188,789 | - | 8.0 | 45,490 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | Boniface John J. | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 4.80 per share. | 07 Dec 2023 | 5,000 | 194,454 | - | 4.8 | 24,000 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 06 Mar 2023 | 34,900 | 34,900 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 06 Mar 2023 | 22,100 | 69,454 | - | 0 | Class A Common Stock | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.15 per share. | 26 Jul 2022 | 2,725 | 46,510 | - | 2.2 | 5,859 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 26 Jul 2022 | 1,000 | 47,510 | - | 0.7 | 730 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 26 Jul 2022 | 1,000 | 844 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.22 per share. | 26 Jul 2022 | 1,000 | 46,510 | - | 2.2 | 2,220 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.86 per share. | 19 Jul 2022 | 2,725 | 49,235 | - | 1.9 | 5,069 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.84 per share. | 12 Jul 2022 | 2,725 | 51,960 | - | 1.8 | 5,014 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.63 per share. | 05 Jul 2022 | 2,725 | 54,685 | - | 1.6 | 4,442 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.89 per share. | 28 Jun 2022 | 2,725 | 57,410 | - | 1.9 | 5,150 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 28 Jun 2022 | 1,000 | 58,410 | - | 0.7 | 730 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 28 Jun 2022 | 1,000 | 1,844 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.72 per share. | 28 Jun 2022 | 1,000 | 57,410 | - | 1.7 | 1,720 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.31 per share. | 21 Jun 2022 | 2,725 | 60,135 | - | 1.3 | 3,570 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.21 per share. | 14 Jun 2022 | 2,725 | 62,860 | - | 1.2 | 3,297 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.30 per share. | 07 Jun 2022 | 2,725 | 65,585 | - | 1.3 | 3,543 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.45 per share. | 31 May 2022 | 2,725 | 68,310 | - | 1.4 | 3,951 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 31 May 2022 | 1,000 | 2,844 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.36 per share. | 31 May 2022 | 1,000 | 68,310 | - | 1.4 | 1,360 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 31 May 2022 | 1,000 | 69,310 | - | 0.7 | 730 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.54 per share. | 24 May 2022 | 2,725 | 71,035 | - | 1.5 | 4,197 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.55 per share. | 17 May 2022 | 2,725 | 73,760 | - | 1.6 | 4,224 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 1.97 per share. | 10 May 2022 | 2,725 | 76,485 | - | 2.0 | 5,368 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 May 2022 | 1,000 | 3,844 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.17 per share. | 04 May 2022 | 1,000 | 79,210 | - | 2.2 | 2,170 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 04 May 2022 | 1,000 | 80,210 | - | 0.7 | 730 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.17 per share. | 03 May 2022 | 2,725 | 79,210 | - | 2.2 | 5,913 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.17 per share. | 26 Apr 2022 | 2,725 | 81,935 | - | 2.2 | 5,913 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.08 per share. | 19 Apr 2022 | 2,725 | 84,660 | - | 2.1 | 5,668 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 2.66 per share. | 12 Apr 2022 | 2,725 | 87,385 | - | 2.7 | 7,249 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.35 per share. | 05 Apr 2022 | 2,725 | 90,110 | - | 3.4 | 9,129 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 05 Apr 2022 | 1,000 | 4,844 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.02 per share. | 05 Apr 2022 | 1,000 | 90,110 | - | 3.0 | 3,020 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 05 Apr 2022 | 1,000 | 91,110 | - | 0.7 | 730 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.73 per share. | 29 Mar 2022 | 2,725 | 92,835 | - | 3.7 | 10,164 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 23 Mar 2022 | 121,705 | 121,705 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.68 per share. | 22 Mar 2022 | 2,725 | 95,560 | - | 3.7 | 10,028 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Sale of securities on an exchange or to another person at price $ 3.94 per share. | 14 Mar 2022 | 2,725 | 98,285 | - | 3.9 | 10,737 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 11 Mar 2022 | 75,998 | 101,010 | - | 0.7 | 55,479 | Class A Common Stock |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 11 Mar 2022 | 75,998 | 0 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Dec 2021 | 25,012 | 0 | - | - | Stock Option (right to buy) | |
| Sera Prognostics Inc (Class A) | John J. Boniface | Chief Scientific Officer | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.73 per share. | 06 Dec 2021 | 25,012 | 25,012 | - | 0.7 | 18,259 | Class A Common Stock |