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SEC Form 4 research

BIOGEN INC. insider transactions

Inspect BIOGEN INC.'s public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0000875045
Reporting owners
76
Officers and directors
39
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

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2026-10-052026-10-01Godbout SeanA985$0Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-01 and its public availability date is 2026-10-05. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Show the table · 4 rows, 7 columns

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2026-10-052026-10-01Godbout SeanA985$0Not reported
2026-09-042026-09-01Parini MichaelA7,405$0Not reported
2026-08-062026-08-04Minor LloydS593$200.96Not reported
2026-08-062026-08-03Minor LloydS593$203.34Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 50 displayed rows: Officers and directors in the directory

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SHERWIN STEPHEN A000107946227
Clancy Paul J000140960167
Gregory Ginger00015457163
Kingsley Stuart A00013690679
SCANGOS GEORGE A00012021021,799
DORSA CAROLINE000118117484
Mantas Jesus B00017773311
Vounatsos Michel00016727095
PAPADOPOULOS STELIOS000120209885
Posner Brian S000137245535
KELLOGG PETER N000122628713
Koppel Adam000157896528
SHARP PHILLIP A0001226295108
ALEXANDER SUSAN H000126383923
Cox John000149842838
Rowinsky Eric K000131888621
WILLIAMS DOUGLAS E000118484714
YOUNG WILLIAM000123653518
ADELMAN BURT A000122628324
Artavanis-Tsakonas Spyridon00015770711
BELZER ALAN000122629011
DENNER ALEXANDER J000136175478
DiPietro Kenneth00015401888
DUNN JOHN MICHAEL000123864849
Ehlers Michael D00016743641
Gagnon Robert E.000150498373
GLASSBERG ALAN000123653134
GOOD MARY L00012262924
Granata Francesco00014981421
Guindo Chirfi00017227536
Hamm Robert A000133501857
HASLER HANS PETER000122628670
Hasnain Faheem000135262055
Holtzman Steven H000130024714
Izzar Rachid00018755061
Karaboutis Adriana00016199639
KELLER THOMAS F00010136726
Kowolenko Michael00013418529
LEAMING NANCY000126575121
MacLean Michael F000138373140
MATSUI CONNIE000123653725
Minor Lloyd00020386872
MULLEN JAMES C0001226288198
Mulligan Richard000137624713
Murphy Nicole00019106441
PANGIA ROBERT W0001236188102
Pawlicki Raymond00015479045
PICKETT CECIL B00012383088
ROSS BRUCE000123653321
Sandrock Alfred000157706143

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.