Boniface John J. (CIK 0001870674)

Latest company ownership

Role: Chief Scientific Officer
Shares held
151,726
Last filed at
Nov 12, 2025
Confidence Score
46.7
2025Q4
Confidence Score History
2022Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 10, 2025 Dec 11, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 50.0 -1,332 -0.88% $4.4K
Nov 10, 2025 Nov 12, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -7,767 -4.87% $20.3K
Sep 11, 2025 Sep 12, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 50.0 -1,395 -0.87% $4.4K
Aug 8, 2025 Aug 11, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -7,094 -4.22% $18K
Jun 10, 2025 Jun 12, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 50.0 -1,439 -0.85% $2.1K
May 8, 2025 May 9, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -5,132 -3.00% $12.5K
Mar 5, 2025 Mar 7, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 90.0 +44,966 35.72% $8.5K
Feb 12, 2025 Feb 14, 2025 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -5,915 -4.49% $27.1K
Nov 11, 2024 Nov 12, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -4,727 -3.64% $34.6K
Aug 7, 2024 Aug 8, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -5,022 -3.72% $37.3K
May 8, 2024 May 10, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -4,902 -3.51% $47K
Mar 27, 2024 Mar 28, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 17.5 -77,136 -15.54% $727.9K
Mar 26, 2024 Mar 26, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 25.0 -21,438 -13.00% $204.7K
Mar 25, 2024 Mar 26, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 25.0 -22,163 -11.84% $201.7K
Mar 6, 2024 Mar 7, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 48.8 -1,664 -0.88% $15K
Feb 6, 2024 Feb 7, 2024 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -5,665 -2.91% $45.5K
Dec 7, 2023 Dec 7, 2023 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 26.3 -5,000 -2.51% $24K
Jul 26, 2022 Jul 27, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -3,725 -3.85% $8.1K
Jul 19, 2022 Jul 19, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 37.5 -2,725 -5.24% $5.1K
Jul 12, 2022 Jul 13, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -4.98% $5K
Jul 5, 2022 Jul 5, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -4.75% $4.4K
Jun 28, 2022 Jun 29, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -3,725 -3.14% $6.9K
Jun 21, 2022 Jun 21, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -4.34% $3.6K
Jun 14, 2022 Jun 16, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -4.15% $3.3K
Jun 7, 2022 Jun 7, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.99% $3.5K
May 31, 2022 Jun 1, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 46.3 -3,725 -2.65% $5.3K
May 24, 2022 May 24, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.69% $4.2K
May 17, 2022 May 17, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.56% $4.2K
May 10, 2022 May 10, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.44% $5.4K
May 4, 2022 May 4, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 50.0 -1,000 -1.25% $2.2K
May 3, 2022 May 3, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.33% $5.9K
Apr 26, 2022 Apr 26, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.22% $5.9K
Apr 19, 2022 Apr 20, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.12% $5.7K
Apr 12, 2022 Apr 13, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 42.5 -2,725 -3.02% $7.2K
Apr 5, 2022 Apr 7, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 45.0 -3,725 -2.03% $12.1K
Mar 29, 2022 Mar 30, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 45.0 -2,725 -2.85% $10.2K
Mar 22, 2022 Mar 23, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 45.0 -2,725 -2.77% $10K
Mar 14, 2022 Mar 15, 2022 SERA PROGNOSTICS, INC. Chief Scientific Officer Sell 45.0 -2,725 -2.70% $10.7K