BIIB Insider Trading Activity and SEC Form 4 Filings
Trump's trades in BIIB
From his financial disclosures
$1K+
1 purchase
$2K+
2 sales
Sale
Jun 12, 2026
Reported 71d later
$1K - $15K
Purchase
Apr 15, 2026
Reported 77d later
$1K - $15K
Sale
Apr 10, 2026
Reported 82d later
$1K - $15K
Many orders in these accounts are placed by the account manager.
BIIB insider trading summary
Over the past 12 months, insiders at Biogen Inc. (BIIB) reported 4 sales worth $905K by 2 insiders and 1 open-market purchase worth $585 by 1 insider on SEC Form 4. Net insider selling was $905K.
Latest BIIB insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 4, 2026 | Lloyd Minor | Director | Sell | $119K (593 @ $200.96) |
| Aug 3, 2026 | Lloyd Minor | Director | Sell | $121K (593 @ $203.34) |
| Feb 12, 2026 | Nicole Murphy | Head of Pharm Ops and Tech | Buy | $585 (3 @ $195.03) |
| Feb 9, 2026 | Priya Singhal | Head of Development | Sell | $532K (2,660 @ $199.83) |
| Feb 2, 2026 | Priya Singhal | Head of Development | Sell | $134K (748 @ $179.30) |
| Sep 2, 2025 | Priya Singhal | Head of Development | Sell | $69K (517 @ $133.55) |
| Jul 8, 2025 | Rachid Izzar | Head of Global Product Strat. | Sell | $300K (2,223 @ $135.00) |
| May 19, 2025 | Priya Singhal | Head of Development | Sell | $481K (3,806 @ $126.25) |
| May 2, 2025 | Caroline Dorsa | Director | Buy | $152K (1,235 @ $122.72) |
| Mar 7, 2025 | Stephen A Sherwin | Director | Sell | $1.3M (8,760 @ $150.02) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.