InsiderClue
Stocks · Health care · Biological Products, (No Diagnostic Substances)

Biogen

BIIB Clue Score50
United States Fiscal year ends December CIK 0000875045 Results filed 28 Oct 2026
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What the insiders did Net buying

Individual transactions

20
Insider
Date
Role
Action
Shares
Price
Amount
Nicole Murphy
12 Feb 2026
Head of Pharm Ops and Tech
Buy
3
$195.04
$585.11
Caroline Dorsa
2 May 2025
Director
Buy
1,235
$122.72
$151.56K
Eric K Rowinsky
15 Feb 2024
Director
Buy
455
$222.54
$101.26K
Jesus B Mantas
9 Feb 2021
Director
Buy
898
$267.00
$239.77K
Michel Vounatsos
30 Nov 2020
Chief Executive Officer
Buy
3,100
$241.31
$748.05K
Alexander J Denner
2 May 2019
Director
Buy indirect
38,000
$231.24
$8.79M
Michel Vounatsos
1 May 2019
Chief Executive Officer
Buy
4,351
$231.48
$1.01M
Alexander J Denner
1 May 2019
Director
Buy indirect
30,000
$229.46
$6.88M
Alexander J Denner
30 Apr 2019
Director
Buy indirect
50,342
$229.25
$11.54M
Alexander J Denner
1 Feb 2019
Director
Buy indirect
7,000
$328.45
$2.30M
Alexander J Denner
31 Jan 2019
Director
Buy indirect
25,800
$330.52
$8.53M
Alexander J Denner
30 Jan 2019
Director
Buy indirect
30,000
$324.86
$9.75M
Alexander J Denner
25 Apr 2018
Director
Buy indirect
48,000
$269.91
$12.96M
Michel Vounatsos
29 Dec 2017
Chief Executive Officer
Buy
780
$320.55
$250.03K
Alexander J Denner
29 Nov 2017
Director
Buy indirect
10,000
$319.84
$3.20M
Alexander J Denner
28 Nov 2017
Director
Buy indirect
20,000
$316.12
$6.32M
Michel Vounatsos
1 May 2017
Chief Executive Officer
Buy
1,402
$271.35
$380.43K
Alexander J Denner
27 Apr 2017
Director
Buy indirect
58,858
$278.48
$16.39M
Alexander J Denner
27 Apr 2017
Director
Buy indirect
15,000
$278.58
$4.18M
Michel Vounatsos
27 Feb 2017
Chief Executive Officer
Buy
1,333
$285.39
$380.42K
Show all 73 transactions →

What was left out

Form 4 filings counted 436
Amendments (4/A) skipped 1
Filings about a different issuer 9
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 19
Sales straight out of an exercise 7
Sales at will 20
Transactions with no price 0
Shares from compensation/vesting 939,117
Sales filed before the plan box existed 19
History held since 3 Oct 2006