WaveMan · Form 4
Boniface John J. insider trades
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Boniface John J. insider trades

Boniface John J. has filed 47 Form 4s with the SEC that we hold, all for Sera Prognostics, INC. (SERA), as Chief Scientific Officer. Across all of them we count 0 purchases worth $0 and 46 sales worth $1.6M reported on Form 4. In the last 12 months: 0 purchases ($0) and 4 sales ($33.8K). The largest single trade was a sale of 48,909 shares of Sera Prognostics, INC. worth $470.5K, dated 2024-03-27. The first filing on our record is dated 2021-12-06 and the latest 2026-03-12.

Sera Prognostics, INC. (SERA)

Chief Scientific Officer · 47 filings · 46 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-03-14S, sale reported on Form 42,725$10.7K2022-03-15
2022-03-22S, sale reported on Form 42,725$10.0K2022-03-23
2022-03-29S, sale reported on Form 42,725$10.2K2022-03-30
2022-04-05S, sale reported on Form 42,725$9.1K2022-04-07
2022-04-06S, sale reported on Form 41,000$3.0K2022-04-07
2022-04-12S, sale reported on Form 42,725$7.2K2022-04-13
2022-04-19S, sale reported on Form 42,725$5.7K2022-04-20
2022-04-26S, sale reported on Form 42,725$5.9K2022-04-26
2022-05-03S, sale reported on Form 42,725$5.9K2022-05-03
2022-05-04S, sale reported on Form 41,000$2.2K2022-05-04
2022-05-10S, sale reported on Form 42,725$5.4K2022-05-10
2022-05-17S, sale reported on Form 42,725$4.2K2022-05-17
2022-05-24S, sale reported on Form 42,725$4.2K2022-05-24
2022-05-31S, sale reported on Form 42,725$4.0K2022-06-01
2022-06-01S, sale reported on Form 41,000$1.4K2022-06-01
2022-06-07S, sale reported on Form 42,725$3.5K2022-06-07
2022-06-14S, sale reported on Form 42,725$3.3K2022-06-16
2022-06-21S, sale reported on Form 42,725$3.6K2022-06-21
2022-06-28S, sale reported on Form 42,725$5.2K2022-06-29
2022-06-29S, sale reported on Form 41,000$1.7K2022-06-29
2022-07-05S, sale reported on Form 42,725$4.4K2022-07-05
2022-07-12S, sale reported on Form 42,725$5.0K2022-07-13
2022-07-19S, sale reported on Form 42,725$5.1K2022-07-19
2022-07-26S, sale reported on Form 42,725$5.9K2022-07-27
2022-07-27S, sale reported on Form 41,000$2.2K2022-07-27
2023-12-07S, sale reported on Form 45,000$24.0K2023-12-07
2024-02-06S, sale reported on Form 45,665$45.5K2024-02-07
2024-03-06S, sale reported on Form 41,664$15.0K2024-03-07
2024-03-25S, sale reported on Form 422,163$201.7K2024-03-26
2024-03-26S, sale reported on Form 421,438$204.7K2024-03-26
2024-03-27S, sale reported on Form 43,753$36.1K2024-03-28
2024-03-27S, sale reported on Form 448,909$470.5K2024-03-28
2024-03-28S, sale reported on Form 424,474$221.2K2024-03-28
2024-05-08S, sale reported on Form 44,902$47.0K2024-05-10
2024-08-07S, sale reported on Form 45,022$37.3K2024-08-08
2024-11-11S, sale reported on Form 44,727$34.6K2024-11-12
2025-02-12S, sale reported on Form 45,915$27.1K2025-02-14
2025-03-06S, sale reported on Form 42,044$8.5K2025-03-07
2025-05-08S, sale reported on Form 45,132$12.5K2025-05-09
2025-06-10S, sale reported on Form 41,439$2.1K2025-06-12
2025-08-08S, sale reported on Form 47,094$18.0K2025-08-11
2025-09-11S, sale reported on Form 41,395$4.4K2025-09-12
2025-11-10S, sale reported on Form 47,767$20.3K2025-11-12
2025-12-10S, sale reported on Form 41,332$4.4K2025-12-11
2026-03-09S, sale reported on Form 43,038$6.0K2026-03-10
2026-03-11S, sale reported on Form 41,517$3.1K2026-03-12
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1870674) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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