Insiders / Rowinsky Eric K

Rowinsky Eric K

CIK 1318886personinsider

Companies

First seen

May 26, 2026

Last activity

Jun 11, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Verastem, Inc. · VSTM	Director	52,666	52,666	1	—
Biogen Inc. · BIIB	Director	25,844	25,844	1	—

2 positions · latest reported per filing

Company	Security	Shares	As of
Biogen Inc.	Common Stock	25,844	Jun 9, 2026
Verastem, Inc.	Common Stock	52,666	May 21, 2026

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jun 9, 2026	Grant	BIIB Biogen Inc. Common Stock	$0	+2K +6.18%	25,844 0.02% of shares	low
May 21, 2026	Grant	VSTM Verastem, Inc. Common Stock	$0	+36K +216.01%	52,666 0.06% of shares	low