InsidersTradesSigma
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (1 ops.)
Insider track record
Board DirectorDisclosed buys
2
Disclosed sells
1
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the complete record of transactions filed by Gryska David W, Director. Insider active across 6 companies, notably Seagen Inc.. In total, 20 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.
Companies and markets linked to Gryska David W
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations20 total
5,940 sharesCommon StockSEC:0001202335-26-000003:0
4,666 sharesCommon SharesSEC:0001193125-26-271163:0
2,500 shares@ US$7.1747.5% of flowCommon SharesSEC:0000950170-24-133724:0
Canonical exit: 5 Mar 2025 (T+90)
3,500 shares@ US$5.9852.5% of flowCommon SharesSEC:0000950170-24-100668:0
Canonical exit: 21 Nov 2024 (T+90)
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$20.060.3% of flowCommon StockSEC:0001203311-22-000021:0
1,100 shares@ US$20.060.2% of flowCommon StockSEC:0001203311-22-000013:0
850 shares@ US$20.060.1% of flowCommon StockSEC:0001203311-22-000008:0
4,500 shares@ US$20.060.7% of flowCommon StockSEC:0000899243-22-002477:0
1,750 shares0Common StockSEC:0001209191-21-042040:0
1,402 shares0Common StockSEC:0001203311-21-000035:0
2,610 sharesCommon StockSEC:0001209191-16-090535:0
20 of 20 declarations
About Gryska David W
GRYSKA DAVID W is Administrateur. He appears in 19 filings in total, and in the sampled recent filings between 2016-01-08 and 2026-06-15, the reported amounts are EUR 35,875 in buys and EUR 11,427,886 in sells, with the transaction nature mainly shown as Attribution. His listed companies are Seagen Inc., Mind Medicine (MindMed) Inc., Aerie Pharmaceuticals INC, Definium Therapeutics, Inc., Forte Biosciences, Inc., and INCYTE CORP.
