Matthew Ros

CIK 1673802 · Chief Operating Officer · last filed 2026-06-11

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$205.0K

Companies

4

Total Filings

44

Lifetime Open-Market Net

-$3.75M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
COGT Director $33.10 $0 19 2026-06-11
VSTM Chief Operating Officer 50,000 $4.10 $205.0K $0 1 2025-04-03
Epizyme, Inc. (EPZM) Delisted See Remarks 111,313 $1.47 $163.6K -$3.75M 17 2021-08-18
Cogent Biosciences, Inc. (UMRX) Delisted Director $0 7 2020-10-02

Recent Filings · Page 5 of 5

44 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2018-02-06 Epizyme, Inc. (EPZM) Delisted Mixed -$509.4K EDGAR
2017-03-02 Epizyme, Inc. (EPZM) Delisted Grant (A) +1,708 $10.6K EDGAR
2017-02-09 Epizyme, Inc. (EPZM) Delisted Grant (A) $0 EDGAR
2016-05-17 Epizyme, Inc. (EPZM) Delisted Grant (A) $0 EDGAR
Showing 4144 of 44
Page 5 of 5
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.