Clark William D

Sr. VP, Chief Business Officer at Vanda Pharmaceuticals Inc. · on record since Jan 31, 2007
EVP & CMO at DELTEK, INC · on record since May 29, 2009
Director at GENOCEA BIOSCIENCES, INC. · on record since Feb 11, 2014
President and CEO at GENOCEA BIOSCIENCES, INC. · on record since Feb 11, 2014
Director at Aldeyra Therapeutics, Inc. · on record since Jun 11, 2026
Director at ACTELIS NETWORKS INC · on record since Nov 15, 2017
Director at iBio, Inc. · on record since Aug 25, 2021

Insider trading activity of Clark William D

Transactions on record: 169; since Nov 8, 2006

Open-market buys: 6; $118.6K

Open-market sells: 81; $4.1M

Companies traded: 6; last filing Jun 11, 2026

Figures computed from official regulatory filings — .

Companies where Clark William D has traded

Aldeyra Therapeutics, Inc.3 tx · Jun 11, 2026
iBio, Inc.5 tx · $5K · Nov 24, 2025
GENOCEA BIOSCIENCES, INC.36 tx · $307.5K · Jun 3, 2022
ACTELIS NETWORKS INC3 tx · Jun 7, 2018
DELTEK, INC13 tx · $711.5K · Apr 8, 2010
Vanda Pharmaceuticals Inc.109 tx · $3.6M · Feb 23, 2010

Track record of Clark William D

Statistical track record

Free

Open-market buys: 6

Last buy: Jan 10, 2025

Win rates and median returns are available with a free account (5 insiders/month).

Transaction history of Clark William D

Co-insiders of Clark William D

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
Aldeyra Therapeutics, Inc.Listing on record	Jun 11, 2026	AwardD (derivative)	2,323	0.00 USD	—	SEC
Aldeyra Therapeutics, Inc.Listing on record	Jun 11, 2026	AwardD (derivative)	70,000	0.00 USD	—	SEC
iBio, Inc.Listing on record	Nov 24, 2025	AwardD (derivative)	13,500	0.00 USD	—	SEC
Aldeyra Therapeutics, Inc.Listing on record	Apr 18, 2025	AwardD (derivative)	76,760	0.00 USD	—	SEC
iBio, Inc.Listing on record	Jan 13, 2025	Buy	1,838	2.72 USD	$5K	SEC
iBio, Inc.Listing on record	Nov 25, 2024	AwardD (derivative)	18,900	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Jun 3, 2022	Sell	-4,023	0.06 USD	$241.4	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Jun 2, 2022	Sell	-117,244	0.06 USD	$7K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Apr 5, 2022	Sell	-3,924	1.25 USD	$4.9K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2022	Award	150,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2022	Sell	-11,435	1.10 USD	$12.6K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2022	AwardD (derivative)	450,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 16, 2022	Sell	-3,794	2.71 USD	$10.3K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 16, 2022	Sell	-2,080	2.23 USD	$4.6K	SEC
iBio, Inc.Listing on record	Dec 13, 2021	AwardD (derivative)	109,000	0.00 USD	—	SEC
iBio, Inc.Listing on record	Aug 25, 2021	AwardD (derivative)	100,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2021	AwardD (derivative)	600,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2021	AwardD (derivative)	450,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2021	Award	150,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	Exercise	19,998	2.72 USD	$54.4K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	Exercise	16,500	1.66 USD	$27.4K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	ExerciseD (derivative)	-16,500	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	ExerciseD (derivative)	-19,998	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Nov 10, 2020	Buy	4,760	2.06 USD	$9.8K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Jun 2, 2020	AwardD (derivative)	106,688	0.00 USD	—	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
Aldeyra Therapeutics, Inc.Listing on record	Jun 11, 2026	AwardD (derivative)	2,323	0.00 USD	—	SEC
Aldeyra Therapeutics, Inc.Listing on record	Jun 11, 2026	AwardD (derivative)	70,000	0.00 USD	—	SEC
iBio, Inc.Listing on record	Nov 24, 2025	AwardD (derivative)	13,500	0.00 USD	—	SEC
Aldeyra Therapeutics, Inc.Listing on record	Apr 18, 2025	AwardD (derivative)	76,760	0.00 USD	—	SEC
iBio, Inc.Listing on record	Jan 13, 2025	Buy	1,838	2.72 USD	$5K	SEC
iBio, Inc.Listing on record	Nov 25, 2024	AwardD (derivative)	18,900	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Jun 3, 2022	Sell	-4,023	0.06 USD	$241.4	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Jun 2, 2022	Sell	-117,244	0.06 USD	$7K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Apr 5, 2022	Sell	-3,924	1.25 USD	$4.9K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2022	Award	150,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2022	Sell	-11,435	1.10 USD	$12.6K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2022	AwardD (derivative)	450,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 16, 2022	Sell	-3,794	2.71 USD	$10.3K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 16, 2022	Sell	-2,080	2.23 USD	$4.6K	SEC
iBio, Inc.Listing on record	Dec 13, 2021	AwardD (derivative)	109,000	0.00 USD	—	SEC
iBio, Inc.Listing on record	Aug 25, 2021	AwardD (derivative)	100,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2021	AwardD (derivative)	600,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2021	AwardD (derivative)	450,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Mar 17, 2021	Award	150,000	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	Exercise	19,998	2.72 USD	$54.4K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	Exercise	16,500	1.66 USD	$27.4K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	ExerciseD (derivative)	-16,500	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Feb 18, 2021	ExerciseD (derivative)	-19,998	0.00 USD	—	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Nov 10, 2020	Buy	4,760	2.06 USD	$9.8K	SEC
GENOCEA BIOSCIENCES, INC.Listing unverified	Jun 2, 2020	AwardD (derivative)	106,688	0.00 USD	—	SEC