GROGAN DONNA ROY

Director at C4 Therapeutics, Inc. · on record since Apr 3, 2026
Director at MOMENTA PHARMACEUTICALS INC · on record since Sep 20, 2019

Insider trading activity of GROGAN DONNA ROY

Transactions on record: 25; since Sep 20, 2019

Open-market buys: 0

Open-market sells: 0

Companies traded: 2; last filing Jul 2, 2026

Figures computed from official regulatory filings — methodology.

Companies where GROGAN DONNA ROY has traded

C4 Therapeutics, Inc.21 tx · $200.2K · Jul 2, 2026
MOMENTA PHARMACEUTICALS INC4 tx · Oct 1, 2020

Track record of GROGAN DONNA ROY

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

Transaction history of GROGAN DONNA ROY

Co-insiders of GROGAN DONNA ROY

DOWNEY BRUCEC4 Therapeutics, Inc. +1
Adams KendraC4 Therapeutics, Inc.
Anderson Kenneth CarlC4 Therapeutics, Inc.
Arnold Stephen DMOMENTA PHARMACEUTICALS INC
Arroyo SantiagoMOMENTA PHARMACEUTICALS INC
Atlas Venture Associates VI, IncMOMENTA PHARMACEUTICALS INC
Atlas Venture Associates VI, L.P.MOMENTA PHARMACEUTICALS INC

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Company	Filed	Type	Qty	Price	Value · USD	Src
C4 Therapeutics, Inc.	Jul 2, 2026	Award	3,341	4.34 USD	—	SEC
C4 Therapeutics, Inc.	Jun 26, 2026	AwardD	62,000	0.00 USD	—	SEC
C4 Therapeutics, Inc.	Apr 3, 2026	Award	5,370	2.70 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Jan 5, 2026	Award	7,513	1.93 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Oct 3, 2025	Award	6,740	2.15 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Jul 2, 2025	Award	9,609	1.51 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Jun 20, 2025	AwardD	35,500	0.00 USD	$0	SEC
C4 Therapeutics, Inc.	Apr 3, 2025	Award	9,581	1.44 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jan 3, 2025	Award	3,757	3.66 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Oct 2, 2024	Award	2,474	5.56 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jul 2, 2024	Award	2,836	4.85 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jun 21, 2024	AwardD	32,500	0.00 USD	$0	SEC
C4 Therapeutics, Inc.	Apr 2, 2024	Award	1,697	8.10 USD	$13.7K	SEC
C4 Therapeutics, Inc.	Jan 3, 2024	Award	2,108	6.52 USD	$13.7K	SEC
C4 Therapeutics, Inc.	Oct 3, 2023	Award	8,089	1.70 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jul 5, 2023	Award	4,858	2.83 USD	$13.7K	SEC
C4 Therapeutics, Inc.	Jun 16, 2023	AwardD	26,000	0.00 USD	$0	SEC
C4 Therapeutics, Inc.	Apr 4, 2023	Award	4,298	3.20 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jan 4, 2023	Award	1,763	6.38 USD	$11.2K	SEC
C4 Therapeutics, Inc.	Oct 4, 2022	Award	819	8.69 USD	$7.1K	SEC
C4 Therapeutics, Inc.	Aug 2, 2022	AwardD	41,200	0.00 USD	$0	SEC
MOMENTA PHARMACEUTICALS INC	Oct 1, 2020	OtherD	-25,000	—	—	SEC
MOMENTA PHARMACEUTICALS INC	Oct 1, 2020	OtherD	-50,000	—	—	SEC
MOMENTA PHARMACEUTICALS INC	Jun 24, 2020	AwardD	25,000	0.00 USD	$0	SEC
MOMENTA PHARMACEUTICALS INC	Sep 20, 2019	AwardD	50,000	0.00 USD	$0	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
C4 Therapeutics, Inc.	Jul 2, 2026	Award	3,341	4.34 USD	—	SEC
C4 Therapeutics, Inc.	Jun 26, 2026	AwardD	62,000	0.00 USD	—	SEC
C4 Therapeutics, Inc.	Apr 3, 2026	Award	5,370	2.70 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Jan 5, 2026	Award	7,513	1.93 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Oct 3, 2025	Award	6,740	2.15 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Jul 2, 2025	Award	9,609	1.51 USD	$14.5K	SEC
C4 Therapeutics, Inc.	Jun 20, 2025	AwardD	35,500	0.00 USD	$0	SEC
C4 Therapeutics, Inc.	Apr 3, 2025	Award	9,581	1.44 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jan 3, 2025	Award	3,757	3.66 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Oct 2, 2024	Award	2,474	5.56 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jul 2, 2024	Award	2,836	4.85 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jun 21, 2024	AwardD	32,500	0.00 USD	$0	SEC
C4 Therapeutics, Inc.	Apr 2, 2024	Award	1,697	8.10 USD	$13.7K	SEC
C4 Therapeutics, Inc.	Jan 3, 2024	Award	2,108	6.52 USD	$13.7K	SEC
C4 Therapeutics, Inc.	Oct 3, 2023	Award	8,089	1.70 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jul 5, 2023	Award	4,858	2.83 USD	$13.7K	SEC
C4 Therapeutics, Inc.	Jun 16, 2023	AwardD	26,000	0.00 USD	$0	SEC
C4 Therapeutics, Inc.	Apr 4, 2023	Award	4,298	3.20 USD	$13.8K	SEC
C4 Therapeutics, Inc.	Jan 4, 2023	Award	1,763	6.38 USD	$11.2K	SEC
C4 Therapeutics, Inc.	Oct 4, 2022	Award	819	8.69 USD	$7.1K	SEC
C4 Therapeutics, Inc.	Aug 2, 2022	AwardD	41,200	0.00 USD	$0	SEC
MOMENTA PHARMACEUTICALS INC	Oct 1, 2020	OtherD	-25,000	—	—	SEC
MOMENTA PHARMACEUTICALS INC	Oct 1, 2020	OtherD	-50,000	—	—	SEC
MOMENTA PHARMACEUTICALS INC	Jun 24, 2020	AwardD	25,000	0.00 USD	$0	SEC
MOMENTA PHARMACEUTICALS INC	Sep 20, 2019	AwardD	50,000	0.00 USD	$0	SEC