McDonnell Michael R.

CIK: 0001121897
Director
Primary company: BIOGEN INC. (BIIB)

McDonnell Michael R. is a corporate insider at BIOGEN INC. (BIIB) filing SEC Form 4 transactions. 119 transactions across 8 companies, totaling $12,689 in purchases and $4,740,609 in sales. Source: SEC EDGAR.

Total Transactions
119
Total Buy Value
$13K
Total Sell Value
$4.74M
Net Activity
$-4.73M
Last Transaction
May 2026
Companies
8

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
5,733
Price
-
Value
-
Type
Award
Shares
1,618
Price
-
Value
-
Type
Award
Shares
7,415
Price
$73.80
Value
$547K
Type
Award
Shares
3,457
Price
-
Value
-
Type
Sale
Shares
1,750
Price
$94.51
Value
$165K
Type
Sale
Shares
1,750
Price
$94.30
Value
$165K
Type
Award
Shares
2,152
Price
-
Value
-
Type
Exercise
Shares
3,257
Price
-
Value
-
Type
Tax Payment
Shares
1,371
Price
$142.54
Value
$195K
Type
Exercise
Shares
3,257
Price
-
Value
-
Type
Exercise
Shares
2,216
Price
-
Value
-
Type
Exercise
Shares
2,335
Price
-
Value
-
Type
Tax Payment
Shares
716
Price
$141.35
Value
$101K
Type
Exercise
Shares
2,216
Price
-
Value
-
Type
Tax Payment
Shares
786
Price
$141.35
Value
$111K
Type
Exercise
Shares
2,335
Price
-
Value
-
Type
Award
Shares
2,431
Price
-
Value
-
Type
J
Shares
2,684
Price
-
Value
-
Type
Exercise
Shares
2,152
Price
-
Value
-
Type
Exercise
Shares
4,568
Price
-
Value
-