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36 filings · most recent first

BIIB Form 4 Insider Filings

Over the trailing 90 days, BIIB insiders sold a net $240K in discretionary open-market trades (1 seller), across 3 Form 4 transactions by 2 insiders.

2026-08-05Minor Lloyd Files Biogen Biib Form 4 August 03 2026 2026-07-14Hawkins William A Files Biogen Biib Form 4 June 09 2026 2026-07-14Sherwin Stephen A Files Biogen Biib Form 4 June 09 2026 2026-07-14Rowinsky Eric K Files Biogen Biib Form 4 June 09 2026 2026-07-14Mantas Jesus B Files Biogen Biib Form 4 June 09 2026 2026-07-14Langer Susan Files Biogen Biib Form 4 June 09 2026 2026-07-14Patolawala Monish D Files Biogen Biib Form 4 June 09 2026 2026-07-14Pangalos Menelas N Files Biogen Biib Form 4 June 09 2026 2026-07-14Minor Lloyd Files Biogen Biib Form 4 June 09 2026 2026-07-14Freire Maria C Files Biogen Biib Form 4 June 09 2026 2026-07-14Keeney Adam Files Biogen Biib Form 4 May 01 2026 2026-04-27Godbout Sean Files Biogen Biib Form 4 April 01 2026 2026-04-27Viehbacher Christopher Files Biogen Biib Form 4 February 13 2026 2026-04-27Singhal Priya Files Biogen Biib Form 4 February 13 2026 2026-04-27Murphy Nicole Files Biogen Biib Form 4 February 12 2026 2026-04-27Kramer Robin Files Biogen Biib Form 4 February 13 2026 2026-04-27Keeney Adam Files Biogen Biib Form 4 February 13 2026 2026-04-27Izzar Rachid Files Biogen Biib Form 4 February 13 2026 2026-04-27Grogan Jane Files Biogen Biib Form 4 February 13 2026 2026-04-27Gregory Ginger Files Biogen Biib Form 4 February 13 2026 2026-04-27Godbout Sean Files Biogen Biib Form 4 February 13 2026 2026-04-27Alexander Susan H Files Biogen Biib Form 4 February 13 2026 2026-02-10Viehbacher Christopher Files Biogen Biib Form 4 February 06 2026 2026-02-10Singhal Priya Files Biogen Biib Form 4 February 06 2026 2026-02-10Murphy Nicole Files Biogen Biib Form 4 February 06 2026 2026-02-10Kramer Robin Files Biogen Biib Form 4 February 06 2026 2026-02-10Keeney Adam Files Biogen Biib Form 4 February 06 2026 2026-02-10Izzar Rachid Files Biogen Biib Form 4 February 06 2026 2026-02-10Grogan Jane Files Biogen Biib Form 4 February 06 2026 2026-02-10Gregory Ginger Files Biogen Biib Form 4 February 06 2026 2026-02-10Godbout Sean Files Biogen Biib Form 4 February 06 2026 2026-02-10Alexander Susan H Files Biogen Biib Form 4 February 06 2026 2026-02-03Singhal Priya Files Biogen Biib Form 4 January 30 2026 2025-12-18Viehbacher Christopher Files Biogen Biib Form 4 December 01 2025 2025-12-18Grogan Jane Files Biogen Biib Form 4 October 31 2025 2025-12-18Godbout Sean Files Biogen Biib Form 4 October 02 2025

Most Active Insiders (Trailing 90 Days)

Minor Lloyd · 2 txns−$240K Parini Michael · 1 txn$0

Detected Clusters

Cluster selling: 10 insiders, $5.9M total, through Feb 13, 2026 — live cluster view →
Cluster selling: 11 insiders, $6.0M total, through Feb 06, 2026 — live cluster view →

BIIB full research: price, insiders, financials →