Rowinsky Eric K

Director · BIIB, VSTM

As of 2026-09-16, Rowinsky Eric K has 5 Form 4 transactions on record across 2 companies — 2 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $6.0MIndirect: $0$6.0Mas of 2026-09-16
  • Direct $6.0M
  • Indirect $0
BIIBdirect25,844 sh$5.6M
VSTMdirect52,666 sh$386K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

VSTM · 3 trades
2026-05-21: Award / grant, 36,000 sh ($0)2025-05-22: Award / grant, 8,333 sh ($0)2025-05-22: Award / grant, 12,500 sh ($0)
BIIB · 2 trades
2026-06-09: Award / grant, 1,505 sh ($0)2025-06-17: Award / grant, 2,370 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
5 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-09BIIBAward / grant1,50525,844Form 4
2026-05-21VSTMAward / grant36,00052,666Form 4
2025-06-17BIIBAward / grant2,37024,339Form 4
2025-05-22VSTMAward / grant8,33316,666Form 4
2025-05-22VSTMAward / grant12,50012,500Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.