InsidersTradesSigma
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (0 ops.)
Insider track record
CEODisclosed buys
2
Disclosed sells
0
T+90 hit rate
100%
T+90 mean return
+39.7%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by Erck Stanley C, Chairman & CEO. Officer active across 2 companies, notably NOVAVAX INC. Aggregated, 15 filings have been recorded. Split: 2 buys · 0 sell. Total volume traded: €117k. Activity tracked since 1 July 2021. The latest transaction was disclosed on 13 August 2025 (Acquisition). Regulator: SEC (Form 4). All data is openly available.
Companies and markets linked to Erck Stanley C
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations15 total
30,421 sharesCommon StockSEC:0000905148-26-003054:0
100,000 shares@ US$1.372297.2% of flowCommon StockSEC:0000905148-25-002875:0
Canonical exit: 11 Nov 2025 (T+90)
29,210 shares0Common StockSEC:0000905148-25-002233:0
47,689 shares@ US$0.0452.4% of flowCommon StockSEC:0001415889-24-026144:0
26,082 shares@ US$0.0428.2% of flowCommon StockSEC:0001415889-24-024454:0
17,922 shares@ US$0.0419.4% of flowCommon StockSEC:0001415889-24-022941:0
21,367 shares0Common StockSEC:0001415889-24-016711:0
6,966 sharesCommon StockSEC:0001209191-22-061699:0
6,546 sharesCommon StockSEC:0001209191-22-051472:0
6,967 sharesCommon StockSEC:0001209191-21-070007:0
14,000 shares@ US$27.6023.5% of flowCommon StockSEC:0001209191-21-059552:0
32,000 shares@ US$27.6053.5% of flowCommon StockSEC:0001209191-21-059557:0
6,546 sharesCommon StockSEC:0001209191-21-057939:0
15,181 shares@ US$25.6023.1% of flowCommon StockSEC:0001209191-21-045558:0
2,072 sharesCommon StockSEC:0001209191-16-094479:0
Canonical exit: 30 Apr 2016 (T+90)
15 of 15 declarations
About Erck Stanley C
Erck Stanley C is President and CEO. He has 15 filings in total, and across the sampled recent filings covering the period from 2016-02-01 to 2026-06-22, the buy volume is EUR 117153 and the sell volume is EUR 0, with the most frequent transaction nature listed as Levée d'options. He is also linked to NOVAVAX INC as President and CEO and to Maxcyte, INC. as Director.
