InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (38 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
38
T+90 hit rate
29%
T+90 mean return
+26.1%
Across 7 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by Boniface John J., Directeur Scientifique. Insider active across 1 company, notably Sera Prognostics, INC.. Cumulatively, 46 reports have been recorded. Breakdown: 0 buy · 38 sells. Total volume traded: €796k. Activity tracked since 6 December 2021. The latest transaction was filed on 11 March 2026 (Cession). Regulator: SEC (Form 4). The full history is free.
Companies and markets linked to Boniface John J.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations46 total
1,517 shares@ US$2.040.3% of flowClass A Common StockSEC:0001193125-26-104705:0
3,038 shares@ US$1.960.6% of flowClass A Common StockSEC:0001193125-26-100527:0
1,332 shares@ US$3.310.4% of flowClass A Common StockSEC:0001193125-25-316498:0
7,767 shares@ US$2.622.1% of flowClass A Common StockSEC:0001193125-25-277703:0
1,395 shares@ US$3.130.4% of flowClass A Common StockSEC:0000950170-25-114575:0
7,094 shares@ US$2.541.8% of flowClass A Common StockSEC:0001870674-25-000005:0
1,439 shares@ US$1.480.2% of flowClass A Common StockSEC:0000950170-25-085692:0
3,703 shares@ US$1.330.5% of flowClass A Common StockSEC:0000950170-25-085687:0
5,132 shares@ US$2.441.3% of flowClass A Common StockSEC:0000950170-25-068387:0
47,010 shares0Class A Common StockSEC:0000950170-25-035800:0
5,915 shares@ US$4.583.1% of flowClass A Common StockSEC:0000950170-25-021185:0
4,727 shares@ US$7.323.9% of flowClass A Common StockSEC:0000950170-24-125641:0
5,022 shares@ US$7.424.1% of flowClass A Common StockSEC:0001534969-24-000166:0
4,902 shares@ US$9.595.3% of flowClass A Common StockSEC:0001534969-24-000096:0
3,753 shares@ US$9.624.0% of flowClass A Common StockSEC:0001534969-24-000073:0
22,163 shares@ US$9.1022.5% of flowClass A Common StockSEC:0001534969-24-000059:0
21,438 shares@ US$9.5522.8% of flowClass A Common StockSEC:0001534969-24-000061:0
1,664 shares@ US$9.021.7% of flowClass A Common StockSEC:0001534969-24-000035:0
5,665 shares@ US$8.035.1% of flowClass A Common StockSEC:0001534969-24-000011:0
5,000 shares@ US$4.802.7% of flowClass A Common StockSEC:0001534969-23-000124:0
125,000 shares0Class A Common StockSEC:0001534969-23-000117:0
22,100 shares0Class A Common StockSEC:0001534969-23-000016:0
844 shares@ US$0.730.1% of flowClass A Common StockSEC:0001534969-22-000125:0
2,725 shares@ US$2.150.7% of flowClass A Common StockSEC:0001534969-22-000118:0
2,725 shares@ US$1.860.6% of flowClass A Common StockSEC:0001534969-22-000116:0
25 of 46 declarations
About Boniface John J.
Boniface John J. is an executive at SERA PROGNOSTICS, INC.
