InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (4 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
4
T+90 hit rate
0%
T+90 mean return
-43.5%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by Mitchener Stephen, Directeur Exécutif. Director active across 1 company, notably Karyopharm Therapeutics Inc.. Aggregated, 9 filings have been logged. Breakdown: 0 buy · 4 sells. Total volume traded: €14k. History available since 2 June 2021. The latest transaction was filed on 28 February 2023 (Attribution). Regulator: SEC (Form 4). The full history is openly available.
Declarations9 total
60,000 shares0Common StockSEC:0001209191-23-014869:0
20,000 shares0Common StockSEC:0001209191-22-048397:0
47,250 shares0Common StockSEC:0001209191-22-014623:0
499 shares@ US$6.6921.2% of flowCommon StockSEC:0001209191-21-067954
499 shares@ US$6.690.0017% mcap21.2% of flowCommon StockSEC:0001209191-21-067954:0
528 shares@ US$9.290.0023% mcap28.8% of flowCommon StockSEC:0000899243-21-021767:0
528 shares@ US$9.2928.8% of flowCommon StockSEC:0000899243-21-021767
1,500 sharesCommon StockSEC:0000899243-21-021292
1,500 sharesCommon StockSEC:0000899243-21-021292:0
9 of 9 declarations
About Mitchener Stephen
Mitchener Stephen serves as Executive Vice President and Chief Business Officer at Karyopharm Therapeutics Inc. In this role, he is responsible for business strategy and managing operations. His expertise in the biopharmaceutical sector is essential in supporting growth and innovation.
