BIIBBIOGEN INC.
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-08-05.
Insider buys (90d)
$0.00
Insider sells (90d)
$239.7K
Net flow
$-239.7K
Filings
10
Buy transactions
0
Sell transactions
2
Distinct insiders
9
Last close (cached)
$221.07
as of 2026-08-26
1d return
+0.1%
5d return
-0.2%
1m return
+7.5%
Top insiders trading BIIB (90d)
Recent transactions (12)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-05 | 2026-08-04 | Minor Lloyd Director | Sale | 593 | $200.96 | $119.2K | open → |
| 2026-08-05 | 2026-08-03 | Minor Lloyd Director | Sale | 593 | $203.34 | $120.6K | open → |
| 2026-06-11 | 2026-06-09 | HAWKINS WILLIAM A Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | SHERWIN STEPHEN A Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Rowinsky Eric K Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Mantas Jesus B Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | LANGER SUSAN Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Patolawala Monish D Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Pangalos Menelas N Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Pangalos Menelas N Director | Exer. | 2,370 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Minor Lloyd Director | Grant | 1,505 | $0.00 | $0.00 | open → |
| 2026-06-11 | 2026-06-09 | Freire Maria C Director | Grant | 2,005 | $0.00 | $0.00 | open → |
Other tickers these insiders trade
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