GRYSKA DAVID W

Director at Seagen Inc. · on record since Feb 15, 2006
Director at COTHERIX INC · on record since May 26, 2006
Chief Financial Officer at CELGENE CORP /DE/ · on record since Dec 8, 2006
Director at AERIE PHARMACEUTICALS INC · on record since Oct 25, 2013
Director at Myrexis, Inc. · on record since May 21, 2012
Chief Operating Officer at Myrexis, Inc. · on record since May 21, 2012
Director at HYPERION THERAPEUTICS INC · on record since Jul 25, 2012
Director at Forte Biosciences, Inc. · on record since Jun 2, 2026
Director at PDL BIOPHARMA, INC. · on record since Mar 10, 2014
Director at ARGOS THERAPEUTICS INC · on record since Feb 6, 2014
Director at Definium Therapeutics, Inc. · on record since Jun 15, 2026
Executive Vice President, CFO at INCYTE CORP · on record since Nov 4, 2014
Director at GW PHARMACEUTICALS PLC · on record since Sep 16, 2020
Director at Celcuity Inc. · on record since Oct 5, 2026

Insider trading activity of GRYSKA DAVID W

Transactions on record: 282; since Dec 29, 2004

Open-market buys: 2; $38.9K

Open-market sells: 45; $23.7M

Companies traded: 10; last filing Aug 27, 2026

Figures computed from official regulatory filings — .

Companies where GRYSKA DAVID W has traded

Celcuity Inc.1 tx · Oct 5, 2026
Forte Biosciences, Inc.12 tx · $150K · Aug 27, 2026
9 tx · $38.9K · Jun 15, 2026
134 tx · $24.7M · Dec 15, 2023
16 tx · $375.2K · Nov 21, 2022
4 tx · May 7, 2021
19 tx · $2.9M · Dec 31, 2020
45 tx · $14.6M · Jul 18, 2018
1 tx · May 1, 2013
36 tx · $7.1M · Jul 15, 2010
6 tx · $141.3K · Jan 10, 2007

Track record of GRYSKA DAVID W

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of GRYSKA DAVID W

Co-insiders of GRYSKA DAVID W

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Celcuity Inc.Listing on record	Oct 5, 2026	Award	893	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-18,353	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-1,000	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-31,000	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-2,000	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	Other	-5,940	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-2,000	—	n/a (No price was disclosed in the filing)		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 15, 2026	Award	4,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 15, 2026	AwardD (derivative)	19,188	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Forte Biosciences, Inc.Security delisted	Jun 2, 2026	AwardD (derivative)	18,353	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 16, 2025	AwardD (derivative)	75,187	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Forte Biosciences, Inc.Security delisted	Mar 21, 2025	AwardD (derivative)	31,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Dec 5, 2024	Buy	2,500	7.17 USD	$17.9K	conv 44	SEC
Definium Therapeutics, Inc.Listing unverified	Aug 26, 2024	Buy	3,500	5.98 USD	$20.9K	conv 53First in 12mo	SEC
Forte Biosciences, Inc.Security delisted	Aug 22, 2024	AwardD (derivative)	50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 12, 2024	AwardD (derivative)	16,506	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	Other	-49,003	229.00 USD	$11.2M	Unusual size	SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-3,462	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-3,676	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-2,044	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-7,038	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Celcuity Inc.Listing on record	Oct 5, 2026	Award	893	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-18,353	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-1,000	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-31,000	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-2,000	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	Other	-5,940	—	n/a (No price was disclosed in the filing)		SEC
Forte Biosciences, Inc.Security delisted	Aug 27, 2026	OtherD (derivative)	-2,000	—	n/a (No price was disclosed in the filing)		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 15, 2026	Award	4,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 15, 2026	AwardD (derivative)	19,188	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Forte Biosciences, Inc.Security delisted	Jun 2, 2026	AwardD (derivative)	18,353	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 16, 2025	AwardD (derivative)	75,187	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Forte Biosciences, Inc.Security delisted	Mar 21, 2025	AwardD (derivative)	31,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Dec 5, 2024	Buy	2,500	7.17 USD	$17.9K	conv 44	SEC
Definium Therapeutics, Inc.Listing unverified	Aug 26, 2024	Buy	3,500	5.98 USD	$20.9K	conv 53First in 12mo	SEC
Forte Biosciences, Inc.Security delisted	Aug 22, 2024	AwardD (derivative)	50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Definium Therapeutics, Inc.Listing unverified	Jun 12, 2024	AwardD (derivative)	16,506	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	Other	-49,003	229.00 USD	$11.2M	Unusual size	SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-3,462	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-3,676	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-2,044	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-7,038	—	n/a (No price was disclosed in the filing)		SEC
Seagen Inc.Listing unverified	Dec 15, 2023	OtherD (derivative)	-9,260	—	n/a (No price was disclosed in the filing)		SEC