DENNER ALEXANDER J

CIK: 0001361754
Director10% Owner
Primary company: BIOGEN INC. (BIIB)

DENNER ALEXANDER J is a corporate insider at BIOGEN INC. (BIIB) filing SEC Form 4 transactions. 161 transactions across 9 companies, totaling $438,111,445,782,034 in purchases and $10,957,730 in sales. Source: SEC EDGAR.

Total Transactions
161
Total Buy Value
$438111.45B
Total Sell Value
$10.96M
Net Activity
+$438111.43B
Last Transaction
Sep 2025
Companies
9

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
11,718
Price
-
Value
-
Type
Award
Shares
1,370
Price
$0.00
Value
$0
Type
Award
Shares
775
Price
$0.00
Value
$0
Type
Purchase
Shares
500,000
Price
$9.56
Value
$4.78M
Type
Purchase
Shares
344,900
Price
$9.60
Value
$3.31M
Type
Purchase
Shares
505,100
Price
$9.20
Value
$4.65M
Type
Award
Shares
661
Price
$0.00
Value
$0
Type
Award
Shares
24,925
Price
$0.00
Value
$0
Type
Award
Shares
12,258
Price
$0.00
Value
$0
Type
Award
Shares
890
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
13,410
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
9,141
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
8,577
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
9,700
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
27,230
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
4,202,000
Price
-
Value
-
MEDICINES CO /DE
MDCO
Type
Disposition
Shares
85,813
Price
-
Value
-
MEDICINES CO /DE
MDCO
Type
Purchase
Shares
50,000
Price
$33.00
Value
$1.65M
Type
Award
Shares
1,155
Price
$0.00
Value
$0
MEDICINES CO /DE
MDCO
Type
Award
Shares
13,410
Price
$0.00
Value
$0