FIRESTONE KAREN exercised options at AMYLYX PHARMACEUTICALS, INC.
Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.
M · 2 exercises
Filed: 9/2/2026ACC: 0001193125-26-380152
Director
Since Mar 2023
0.00
Net shares
Net seller
$170.3K
Total acquired
0
Open market trades
0B · 0S
4
Total transactions
50K acquired · 50K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+25K
Price / share
$1.76
Trade value
$44K
% of position
37.4%
8/31/2026
66.90K→91.90K
Common Stock
Direct
Shares
+25K
Price / share
$5.05
Trade value
$126.25K
% of position
27.2%
8/31/2026
91.90K→116.90K
Total
Net shares
+50K
Net value
$170.25K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/31/2026 | M · Option Exercise | +25K | $1.76 | $44K | 37.4% | 66.90K | 91.90K |
| Common Stock Direct | 8/31/2026 | M · Option Exercise | +25K | $5.05 | $126.25K | 27.2% | 91.90K | 116.90K |
| Total | +50K | $170.25K | ||||||
Derivative Transactions2
Stock Option (right to buy)
Direct
Converts to
Common Stock
25K shares
Shares
−25K
Strike price
1.76
Held after
0.00
Exercisable
—
8/31/2026
Stock Option (right to buy)
Direct
Converts to
Common Stock
25K shares
Shares
−25K
Strike price
5.05
Held after
0.00
Exercisable
—
8/31/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Stock Option (right to buy) Direct | Common Stock25K shares | 8/31/2026 | M · Option Exercise | −25K | 1.76 | — | 0.00 |
| Stock Option (right to buy) Direct | Common Stock25K shares | 8/31/2026 | M · Option Exercise | −25K | 5.05 | — | 0.00 |