David W. Gryska

David W. Gryska (board member) discloses dealings in 6 companies, chiefly Seagen Inc., Definium Therapeutics, Inc. and Aerie Pharmaceuticals Inc. Over a trading history stretching from 7 January 2016 to 1 October 2026, the count stands at 21 filings.

The open-market side counts 2 purchases for €36k alongside 1 sale for €950k. The net balance comes to €914k on the selling side. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Outside the open market, there are 10 share grants and 5 option exercises.

The record was last updated on 5 October 2026 with a share grant in Celcuity Inc. The latest purchase dates back some time: it was published 682 days ago, on 5 December 2024. Typically, a trade is published a median of 4 days after it takes place. Section 16 rules allow two business days to file each Form 4. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.