BIIBBIOGEN INC.
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-05-05.
Insider buys (90d)
$0.00
Insider sells (90d)
$0.00
Net flow
$0.00
Filings
1
Buy transactions
0
Sell transactions
0
Distinct insiders
1
Last close (cached)
$188.83
as of 2026-06-02
1d return
-1.8%
5d return
-2.2%
1m return
+0.9%
Top insiders trading BIIB (90d)
Recent transactions (2)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-05 | 2026-05-01 | Keeney Adam Officer | Tax | 455 | $187.06 | $85.1K | open → |
| 2026-05-05 | 2026-05-01 | Keeney Adam Officer | Exer. | 939 | $0.00 | $0.00 | open → |
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