Barrett Peter

Director at ALNYLAM PHARMACEUTICALS, INC. · on record since Feb 27, 2006
Director at HELICOS BIOSCIENCES CORP · on record since May 31, 2007
10% owner at HELICOS BIOSCIENCES CORP · on record since May 31, 2007
Director at MOMENTA PHARMACEUTICALS INC · on record since Jun 16, 2006
10% owner at ALNYLAM PHARMACEUTICALS, INC. · on record since Jun 1, 2004
Director at SCICLONE PHARMACEUTICALS INC · on record since Apr 20, 2011
10% owner at MOMENTA PHARMACEUTICALS INC · on record since Jun 23, 2004
Director at PERKINELMER INC · on record since Feb 9, 2012
Director at Larimar Therapeutics, Inc. · on record since Jun 26, 2014
Director at Vitae Pharmaceuticals, Inc · on record since Sep 26, 2014
10% owner at Larimar Therapeutics, Inc. · on record since Jan 12, 2015
Director at Obsidian Therapeutics, Inc. · on record since Aug 3, 2026
Director at Mirna Therapeutics, Inc. · on record since Aug 30, 2017

Insider trading activity of Barrett Peter

Transactions on record: 252; since Jun 1, 2004

Open-market buys: 25; $6.8M

Open-market sells: 58; $15.9M

Companies traded: 8; last filing May 11, 2026

Figures computed from official regulatory filings — .

Companies where Barrett Peter has traded

Obsidian Therapeutics, Inc.1 tx · Aug 5, 2026
PERKINELMER INC47 tx · $3.3M · May 11, 2026
Mirna Therapeutics, Inc.16 tx · $152.7K · Jan 4, 2024
21 tx · $140K · May 12, 2022
6 tx · $300K · Oct 1, 2014
3 tx · Jun 11, 2012
10 tx · $3M · Sep 22, 2009
49 tx · $793K · Jun 9, 2008
100 tx · $16.1M · Jun 16, 2006

Track record of Barrett Peter

Statistical track record

Free

Open-market buys: 27

Last buy: Sep 29, 2014

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

Transaction history of Barrett Peter

Co-insiders of Barrett Peter

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Value · USD	Src
Obsidian Therapeutics, Inc.	Aug 5, 2026	AwardD (derivative)	37,653	—	SEC
PERKINELMER INC	May 11, 2026	Award	1,015	—	SEC
PERKINELMER INC	May 11, 2026	Award	1,265	—	SEC
PERKINELMER INC	May 1, 2025	Award	1,074	—	SEC
PERKINELMER INC	May 1, 2025	Award	1,338	—	SEC
PERKINELMER INC	May 2, 2024	Award	977	—	SEC
PERKINELMER INC	May 2, 2024	Award	1,218	—	SEC
Mirna Therapeutics, Inc.	Jan 4, 2024	AwardD (derivative)	24,923	—	SEC
Mirna Therapeutics, Inc.	Jun 26, 2023	AwardD (derivative)	30,000	—	SEC
PERKINELMER INC	May 17, 2023	Award	783	—	SEC
PERKINELMER INC	May 17, 2023	Award	955	—	SEC
Mirna Therapeutics, Inc.	Jan 4, 2023	AwardD (derivative)	156,130	—	SEC
Mirna Therapeutics, Inc.	Jun 13, 2022	AwardD (derivative)	27,000	—	SEC
Larimar Therapeutics, Inc.	May 12, 2022	AwardD (derivative)	8,300	—	SEC
PERKINELMER INC	May 9, 2022	Award	744	—	SEC
PERKINELMER INC	May 9, 2022	Award	610	—	SEC
Mirna Therapeutics, Inc.	Jan 5, 2022	AwardD (derivative)	49,334	—	SEC
PERKINELMER INC	Aug 2, 2021	Gift	-5,000	—	SEC
Mirna Therapeutics, Inc.	Jun 14, 2021	AwardD (derivative)	12,818	—	SEC
Larimar Therapeutics, Inc.	May 17, 2021	AwardD (derivative)	8,300	—	SEC
PERKINELMER INC	May 10, 2021	Award	604	—	SEC
PERKINELMER INC	May 10, 2021	Award	709	—	SEC
Mirna Therapeutics, Inc.	Jan 5, 2021	AwardD (derivative)	57,498	—	SEC
Larimar Therapeutics, Inc.	Sep 30, 2020	AwardD (derivative)	16,600	—	SEC
Mirna Therapeutics, Inc.	Jul 28, 2020	AwardD (derivative)	1,541	—	SEC

Company	Filed	Type	Qty	Value · USD	Src
Obsidian Therapeutics, Inc.	Aug 5, 2026	AwardD (derivative)	37,653	—	SEC
PERKINELMER INC	May 11, 2026	Award	1,015	—	SEC
PERKINELMER INC	May 11, 2026	Award	1,265	—	SEC
PERKINELMER INC	May 1, 2025	Award	1,074	—	SEC
PERKINELMER INC	May 1, 2025	Award	1,338	—	SEC
PERKINELMER INC	May 2, 2024	Award	977	—	SEC
PERKINELMER INC	May 2, 2024	Award	1,218	—	SEC
Mirna Therapeutics, Inc.	Jan 4, 2024	AwardD (derivative)	24,923	—	SEC
Mirna Therapeutics, Inc.	Jun 26, 2023	AwardD (derivative)	30,000	—	SEC
PERKINELMER INC	May 17, 2023	Award	783	—	SEC
PERKINELMER INC	May 17, 2023	Award	955	—	SEC
Mirna Therapeutics, Inc.	Jan 4, 2023	AwardD (derivative)	156,130	—	SEC
Mirna Therapeutics, Inc.	Jun 13, 2022	AwardD (derivative)	27,000	—	SEC
Larimar Therapeutics, Inc.	May 12, 2022	AwardD (derivative)	8,300	—	SEC
PERKINELMER INC	May 9, 2022	Award	744	—	SEC
PERKINELMER INC	May 9, 2022	Award	610	—	SEC
Mirna Therapeutics, Inc.	Jan 5, 2022	AwardD (derivative)	49,334	—	SEC
PERKINELMER INC	Aug 2, 2021	Gift	-5,000	—	SEC
Mirna Therapeutics, Inc.	Jun 14, 2021	AwardD (derivative)	12,818	—	SEC
Larimar Therapeutics, Inc.	May 17, 2021	AwardD (derivative)	8,300	—	SEC
PERKINELMER INC	May 10, 2021	Award	604	—	SEC
PERKINELMER INC	May 10, 2021	Award	709	—	SEC
Mirna Therapeutics, Inc.	Jan 5, 2021	AwardD (derivative)	57,498	—	SEC
Larimar Therapeutics, Inc.	Sep 30, 2020	AwardD (derivative)	16,600	—	SEC
Mirna Therapeutics, Inc.	Jul 28, 2020	AwardD (derivative)	1,541	—	SEC