InsidersTradesSigma
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (1 ops.)
Insider track record
Board DirectorDisclosed buys
2
Disclosed sells
1
T+90 hit rate
100%
T+90 mean return
+2.4%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the complete record of transactions filed by GRYSKA DAVID W, Director. Insider active across 5 companies, notably Seagen Inc.. In total, 23 filings have been published. Split: 2 buys · 1 sell. Total volume traded: €986k. Activity tracked since 14 May 2021. The latest transaction was disclosed on 5 December 2024 (Acquisition). Regulator: SEC (Form 4). All data is openly available.
Declarations23 total
2,500 shares@ US$7.1747.5% of flowCommon SharesSEC:0000950170-24-133724:0
Ideal exit: 1 Sept 2025 (T+270)
3,500 shares@ US$5.9852.5% of flowCommon SharesSEC:0000950170-24-100668:0
Ideal exit: 20 May 2025 (T+270)
49,003 shares@ US$229.0087.2% of flowCommon StockSEC:0000950170-23-070865:0
148,514 shares@ US$1.01100.0% of flowCommon StockSEC:0001209191-23-044284:0
13,851 shares0Common SharesSEC:0000899243-23-016426:0
2,044 shares0Common StockSEC:0001203311-23-000063:0
8,750 shares@ US$36.702.5% of flowCommon StockSEC:0001203311-23-000014:0
11,495 shares@ US$15.25100.0% of flowCommon StockSEC:0001209191-22-058176:0
7,500 shares@ US$129.0968.0% of flowCommon StockSEC:0001203311-22-000059:0
6,245 shares0Common StockSEC:0001209191-22-036389:0
1,503 shares0Common StockSEC:0000899243-22-018466:0
1,794 shares@ US$20.0612.8% of flowCommon StockSEC:0001203311-22-000021:0
1,100 shares@ US$20.067.4% of flowCommon StockSEC:0001203311-22-000013:0
1,100 shares@ US$20.0617.0% of flowCommon StockSEC:0001203311-22-000013
850 shares@ US$20.065.9% of flowCommon StockSEC:0001203311-22-000008:0
850 shares@ US$20.0613.5% of flowCommon StockSEC:0001203311-22-000008
4,500 shares@ US$20.0630.3% of flowCommon StockSEC:0000899243-22-002477:0
4,500 shares@ US$20.0669.5% of flowCommon StockSEC:0000899243-22-002477
1,750 shares0Common StockSEC:0001209191-21-042040
1,750 shares0Common StockSEC:0001209191-21-042040:0
1,402 shares0Common StockSEC:0001203311-21-000035
1,402 shares0Common StockSEC:0001203311-21-000035:0
2,610 sharesCommon StockSEC:0001209191-16-090535:0
23 of 23 declarations
About GRYSKA DAVID W
Gryska David W is a Director at Seagen Inc. and Aerie Pharmaceuticals Inc. As a director, he contributes to the governance of the companies and strategic decision-making. David brings his expertise and experience to help guide the direction of these companies. His role is essential in ensuring compliance and accountability within the boards.
