Cox John
CIK: 0001498428•CEO & President
OfficerDirector
Primary company: BIOGEN INC. (BIIB)
Cox John is a corporate insider (CEO & President) at BIOGEN INC. (BIIB) filing SEC Form 4 transactions. 200 transactions across 5 companies, totaling $1,968,216 in purchases and $14,926,505 in sales. Source: SEC EDGAR.
Companies
Transaction History
Source: SEC EDGAR Form 4 insider transaction filings.
Company | Type | Shares | Price | Value | Shares After | Date | SEC |
|---|---|---|---|---|---|---|---|
| Sale | 2,683 | $18.33 | $49K | 368,151 | 6/16/2026 Filed: 6/16/2026 | Filing → | |
| Sale | 2,662 | $20.72 | $55K | 196,877 | 12/5/2025 Filed: 12/5/2025 | Filing → | |
| Sale | 2,640 | $13.41 | $35K | 199,539 | 9/5/2025 Filed: 9/9/2025 | Filing → | |
| Award | 197,285 | - | - | 197,285 | 7/16/2025 Filed: 7/18/2025 | Filing → | |
| Gift | 10,000 | - | - | 202,179 | 7/15/2025 Filed: 7/15/2025 | Filing → | |
| Gift | 10,000 | - | - | 212,179 | 7/15/2025 Filed: 7/15/2025 | Filing → | |
| Gift | 10,000 | - | - | 222,179 | 7/15/2025 Filed: 7/15/2025 | Filing → | |
| Gift | 10,000 | - | - | 232,179 | 7/15/2025 Filed: 7/15/2025 | Filing → | |
| Purchase | 100,000 | $9.11 | $911K | 242,179 | 7/14/2025 Filed: 7/15/2025 | Filing → | |
| Sale | 4,060 | $13.35 | $54K | 142,179 | 6/5/2025 Filed: 6/6/2025 | Filing → | |
| Sale | 4,061 | $11.83 | $48K | 146,239 | 3/5/2025 Filed: 3/7/2025 | Filing → | |
| Award | 232,100 | - | - | 232,100 | 12/4/2024 Filed: 12/6/2024 | Filing → | |
| Award | 145,300 | - | - | 150,300 | 12/4/2024 Filed: 12/6/2024 | Filing → | |
| Purchase | 7,200 | $33.09 | $238K | 8,000 | 9/4/2024 Filed: 9/4/2024 | Filing → | |
| Purchase | 800 | $32.57 | $26K | 800 | 9/4/2024 Filed: 9/4/2024 | Filing → | |
| Purchase | 7,200 | $33.09 | $238K | 8,000 | 9/4/2024 Filed: 9/4/2024 | Filing → | |
| Purchase | 800 | $32.57 | $26K | 800 | 9/4/2024 Filed: 9/4/2024 | Filing → | |
| Purchase | 7,200 | $33.09 | $238K | 8,000 | 9/4/2024 Filed: 9/4/2024 | Filing → | |
| Purchase | 800 | $32.57 | $26K | 800 | 9/4/2024 Filed: 9/4/2024 | Filing → | |
| Purchase | 7,200 | $33.09 | $238K | 8,000 | 9/4/2024 Filed: 9/4/2024 | Filing → |
Type
Sale
Shares
2,683
Price
$18.33
Value
$49K
Type
Sale
Shares
2,662
Price
$20.72
Value
$55K
Type
Sale
Shares
2,640
Price
$13.41
Value
$35K
Type
Award
Shares
197,285
Price
-
Value
-
Type
Gift
Shares
10,000
Price
-
Value
-
Type
Gift
Shares
10,000
Price
-
Value
-
Type
Gift
Shares
10,000
Price
-
Value
-
Type
Gift
Shares
10,000
Price
-
Value
-
Type
Purchase
Shares
100,000
Price
$9.11
Value
$911K
Type
Sale
Shares
4,060
Price
$13.35
Value
$54K
Type
Sale
Shares
4,061
Price
$11.83
Value
$48K
Type
Award
Shares
232,100
Price
-
Value
-
Type
Award
Shares
145,300
Price
-
Value
-
Type
Purchase
Shares
7,200
Price
$33.09
Value
$238K
Type
Purchase
Shares
800
Price
$32.57
Value
$26K
Type
Purchase
Shares
7,200
Price
$33.09
Value
$238K
Type
Purchase
Shares
800
Price
$32.57
Value
$26K
Type
Purchase
Shares
7,200
Price
$33.09
Value
$238K
Type
Purchase
Shares
800
Price
$32.57
Value
$26K
Type
Purchase
Shares
7,200
Price
$33.09
Value
$238K
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