Guindo Chirfi
CIK: 0001722753
Director
Primary company: BIOGEN INC. (BIIB)
Guindo Chirfi is a corporate insider at BIOGEN INC. (BIIB) filing SEC Form 4 transactions. 71 transactions across 3 companies, totaling $0 in purchases and $1,358,280 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 |
|---|---|---|---|---|---|---|---|
| Award | 19,676 | $29.55 | $581K | 19,676 | 6/3/2026 Filed: 6/3/2026 | Filing → | |
| Award | 19,402 | $113.15 | $2.20M | 19,402 | 5/5/2026 Filed: 5/5/2026 | Filing → | |
| Award | 6,628 | - | - | 6,628 | 5/5/2026 Filed: 5/5/2026 | Filing → | |
| Exercise | 1,967 | - | - | 3,935 | 4/29/2026 Filed: 4/29/2026 | Filing → | |
| Tax Payment | 969 | $110.03 | $107K | 61,613 | 4/29/2026 Filed: 4/29/2026 | Filing → | |
| Exercise | 1,967 | $110.03 | $216K | 62,582 | 4/29/2026 Filed: 4/29/2026 | Filing → | |
| Exercise | 36,903 | - | - | 0 | 8/4/2025 Filed: 8/5/2025 | Filing → | |
| Tax Payment | 18,175 | $79.29 | $1.44M | 89,233 | 8/4/2025 Filed: 8/5/2025 | Filing → | |
| Exercise | 36,903 | $79.29 | $2.93M | 107,408 | 8/4/2025 Filed: 8/5/2025 | Filing → | |
| Award | 33,662 | - | - | 33,662 | 6/4/2025 Filed: 6/6/2025 | Filing → | |
| Award | 26,867 | - | - | 26,867 | 4/29/2025 Filed: 5/1/2025 | Filing → | |
| Award | 5,902 | - | - | 5,902 | 4/29/2025 Filed: 5/1/2025 | Filing → | |
| Award | 28,158 | $97.94 | $2.76M | 69,143 | 1/27/2025 Filed: 1/29/2025 | Filing → | |
| Award | 39,086 | - | - | 39,086 | 12/2/2024 Filed: 12/4/2024 | Filing → | |
| Exercise | 36,901 | - | - | 36,903 | 8/5/2024 Filed: 8/6/2024 | Filing → | |
| Tax Payment | 17,412 | $115.20 | $2.01M | 40,369 | 8/5/2024 Filed: 8/6/2024 | Filing → | |
| Exercise | 36,901 | $115.20 | $4.25M | 57,781 | 8/5/2024 Filed: 8/6/2024 | Filing → | |
| Award | 29,297 | - | - | 29,297 | 4/30/2024 Filed: 5/2/2024 | Filing → | |
| Exercise | 36,901 | $0.00 | $0 | 73,804 | 8/3/2023 Filed: 8/4/2023 | Filing → | |
| Tax Payment | 17,989 | $105.70 | $1.90M | 20,352 | 8/3/2023 Filed: 8/4/2023 | Filing → |
Type
Award
Shares
19,676
Price
$29.55
Value
$581K
Type
Award
Shares
19,402
Price
$113.15
Value
$2.20M
Type
Award
Shares
6,628
Price
-
Value
-
Type
Exercise
Shares
1,967
Price
-
Value
-
Type
Tax Payment
Shares
969
Price
$110.03
Value
$107K
Type
Exercise
Shares
1,967
Price
$110.03
Value
$216K
Type
Exercise
Shares
36,903
Price
-
Value
-
Type
Tax Payment
Shares
18,175
Price
$79.29
Value
$1.44M
Type
Exercise
Shares
36,903
Price
$79.29
Value
$2.93M
Type
Award
Shares
33,662
Price
-
Value
-
Type
Award
Shares
26,867
Price
-
Value
-
Type
Award
Shares
5,902
Price
-
Value
-
Type
Award
Shares
28,158
Price
$97.94
Value
$2.76M
Type
Award
Shares
39,086
Price
-
Value
-
Type
Exercise
Shares
36,901
Price
-
Value
-
Type
Tax Payment
Shares
17,412
Price
$115.20
Value
$2.01M
Type
Exercise
Shares
36,901
Price
$115.20
Value
$4.25M
Type
Award
Shares
29,297
Price
-
Value
-
Type
Exercise
Shares
36,901
Price
$0.00
Value
$0
Type
Tax Payment
Shares
17,989
Price
$105.70
Value
$1.90M
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