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Who

Matthew Ros

Director

Company insider

Files Form 4 as: Director, Cogent Biosciences; Chief Operating Officer, Verastem; Chief Operating Officer, Epizyme.

In numbers

Trades disclosed
65
Buys
0
Sells
8
Bought
$0
Sold
$3.7M
Companies
3
Companies where not an officer
1
First trade
16 May 2016
Last trade
9 Jun 2026
Last filed
11 Jun 2026

Companies traded

Where they are an officer
VSTM VerastemOfficer · Biotechnology · last 1 Apr 20250 buys · 0 sells
EpizymeOfficer · last 16 Aug 20210 buys · 8 sells
Everywhere else they filed: board seats, 10% stakes, other companies
COGT Cogent BiosciencesDirector · Biotechnology · last 9 Jun 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
9 Jun 2026filed 11 Jun 2026COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—17,901 at $0.00filing
9 Jun 2026filed 11 Jun 2026COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—17,901 at $0.00filing
4 Jun 2025filed 5 Jun 2025COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—44,700 at $0.00filing
1 Apr 2025filed 3 Apr 2025VSTM VerastemBiotechnologySEC FORM 4 Code A—50,000 at $0.00filing
5 Jun 2024filed 13 Jun 2024COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—44,700 at $0.00filing
2 Jan 2024filed 4 Jan 2024COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—3,051 at $0.00filing
2 Oct 2023filed 3 Oct 2023COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—2,170 at $0.00filing
3 Jul 2023filed 5 Jul 2023COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—1,743 at $0.00filing
7 Jun 2023filed 8 Jun 2023COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—36,700 at $0.00filing
3 Apr 2023filed 4 Apr 2023COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—1,900 at $0.00filing
3 Jan 2023filed 4 Jan 2023COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$13K1,792 at $7.19filing
3 Oct 2022filed 4 Oct 2022COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$13K1,419 at $9.08filing
1 Jul 2022filed 5 Jul 2022COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$13K2,194 at $5.87filing
7 Jun 2022filed 9 Jun 2022COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A—30,700 at $0.00filing
1 Apr 2022filed 5 Apr 2022COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$13K2,650 at $4.86filing
3 Jan 2022filed 4 Jan 2022COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$12K2,256 at $5.15filing
1 Oct 2021filed 5 Oct 2021COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$12K2,463 at $5.03filing
16 Aug 2021filed 18 Aug 2021Epizymeoption or derivativeSEC FORM 4 Code A—134,178 at $0.00filing
16 Aug 2021filed 18 Aug 2021EpizymeSEC FORM 4 Code A—28,125 at $0.00filing
1 Jul 2021filed 6 Jul 2021COGT Cogent Biosciencesoption or derivative · BiotechnologySEC FORM 4 Code A$11K2,225 at $4.78filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Not placed8

Buys in green, sells in red, by the company’s sector.

Related people

Daniel CalkinsChief Financial Officer · Chief Financial Officer at Verastem, filing Form 4 there in the last year
Dan PatersonPresident and CEO · President and CEO at Verastem, filing Form 4 there in the last year
Michael P. BaileyDirector · Director at Verastem, filing Form 4 there in the last year
Brian M. StuglikDirector · Director at Verastem, filing Form 4 there in the last year
Anil KapurDirector · Director at Verastem, filing Form 4 there in the last year