SHERWIN STEPHEN A

Director · NBIX, BIIB

As of 2026-09-16, SHERWIN STEPHEN A has 21 Form 4 transactions on record across 2 companies — 14 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: $5.5MIndirect: $0$5.5Mas of 2026-09-16
  • Direct $5.5M
  • Indirect $0
BIIBdirect15,193 sh$3.3M
NBIXdirect14,860 sh$2.2M

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

NBIX · 18 trades
2026-09-02: Gift, 1,000 sh ($0)2026-06-05: Sale, 7,883 sh ($1.3M)2026-06-05: Sale, 6,896 sh ($1.1M)2026-06-05: Sale, 5,829 sh ($971K)2026-06-05: Option exercise, 15,000 sh ($805K)2026-06-05: Option exercise, 10,000 sh ($798K)2026-06-05: Sale, 2,549 sh ($419K)2026-06-05: Sale, 1,843 sh ($308K)2026-06-05: Option exercise, 10,000 sh ($0)2026-06-05: Option exercise, 15,000 sh ($0)2026-05-27: Award / grant, 2,567 sh ($0)2026-05-21: Option exercise, 3,318 sh ($0)2026-05-21: Option exercise, 3,318 sh ($0)2025-09-02: Gift, 1,000 sh ($0)2025-05-22: Option exercise, 2,869 sh ($0)2025-05-22: Option exercise, 2,869 sh ($0)2025-05-21: Award / grant, 3,318 sh ($0)2025-02-13: Sale, 13,831 sh ($1.6M)
BIIB · 3 trades
2026-06-09: Award / grant, 1,505 sh ($0)2025-06-17: Award / grant, 2,370 sh ($0)2025-03-07: Sale, 8,760 sh ($1.3M)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-05NBIXSale7,883 @ $163.81$1.3M−19.3% of holding32,977Form 4
2026-06-05NBIXSale6,896 @ $165.79$1.1M−22.7% of holding23,532Form 4
2026-06-05NBIXSale5,829 @ $166.56$971K−24.8% of holding17,703Form 4
2026-06-05NBIXSale2,549 @ $164.44$419K−7.7% of holding30,428Form 4
2026-06-05NBIXSale1,843 @ $167.31$308K−10.4% of holding15,860Form 4
2025-03-07BIIBSale8,760 @ $150.02$1.3M−43.6% of holding11,318Form 4
2025-02-13NBIXSale13,831 @ $116.69$1.6M−56.4% of holding10,673Form 4
14 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-02NBIXGift1,00014,860Form 4
2026-06-09BIIBAward / grant1,50515,193Form 4
2026-06-05NBIXOption exercise15,00030,860Form 4
2026-06-05NBIXOption exercise10,00040,860Form 4
2026-06-05NBIXOption exercise10,0000Form 4
2026-06-05NBIXOption exercise15,0000Form 4
2026-05-27NBIXAward / grant2,5672,567Form 4
2026-05-21NBIXOption exercise3,3180Form 4
2026-05-21NBIXOption exercise3,31815,860Form 4
2025-09-02NBIXGift1,00012,542Form 4
2025-06-17BIIBAward / grant2,37013,688Form 4
2025-05-22NBIXOption exercise2,8690Form 4
2025-05-22NBIXOption exercise2,86913,542Form 4
2025-05-21NBIXAward / grant3,3183,318Form 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.