Jane Grogan Biogen Inc. (BIIB) insider trading activity

BIIB Quotes by TradingView

Jane Grogan is Head of Research of BIOGEN INC.. Currently has a direct ownership of 1,791 shares of BIIB, which is worth approximately $300,082. The most recent transaction as insider was on Oct 31, 2025, when has been sold 337 shares (Common Stock) at a price of $154.27 per share, resulting in proceeds of $51,988. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 1.79K
24.98% 3M change
264.77% 12M change
Total Value Held $300,082

Jane Grogan Transaction History

Date Transaction Value Shares Traded Shares Held Form
Oct 31 2025
SELL
Payment of exercise price or tax liability
$51,988 $154.27 p/Share
337 Reduced 15.84%
1,791 Common Stock
Oct 31 2025
BUY
Exercise of conversion of derivative security
-
695 Added 24.62%
2,128 Common Stock
Feb 07 2025
SELL
Payment of exercise price or tax liability
$62,618 $141.35 p/Share
443 Reduced 23.61%
1,433 Common Stock
Feb 07 2025
BUY
Exercise of conversion of derivative security
-
1,385 Added 42.47%
1,876 Common Stock
Nov 01 2024
SELL
Payment of exercise price or tax liability
$35,453 $173.79 p/Share
204 Reduced 29.35%
491 Common Stock
Nov 01 2024
BUY
Exercise of conversion of derivative security
-
695 Added 50.0%
695 Common Stock
JG

Jane Grogan

Head of Research
Cambridge, MA

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