MarketPeel
Insider Trading Intelligence
Head of Development
Fri, Feb 6, 2026
Feb 6
sold $212.45k of BIIB
1,056 shares @ $201.18
Decreased holdings by -12.40%
5th largest trade (out of 80)
Tax WithholdingCluster Buy
Trade made by an officer
Part of a cluster of 3 transactions by 3 insiders
Shares withheld by the issuer to cover taxes on vesting — not a market sale
Price 36% above 200-day moving average
BIIBBIOGEN INC.
Health CareBiotechnology
1D0.00%
1W+5.18%
1M+9.06%
3M+14.35%
6M
1Y

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