Klee Justin B.
SEC insider (Form 3/4/5 filer). CIK 0001898314. Co-Chief Executive Officer at Amylyx Pharmaceuticals, Inc. (AMLX). 21 reported Form 4/5 transactions since Sep 2024; latest on Sep 10, 2026. Located in CAMBRIDGE, MA.
Companies Klee Justin B. has filed insider reports for
- Amylyx Pharmaceuticals, Inc. (AMLX): Director, Officer, Co-Chief Executive Officer
Klee Justin B.
CIK: 0001898314
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Amylyx Pharmaceuticals, Inc.
Discretionary Trading P&L
Holdings
Transaction History (21 total)
- Sep 10, 2026AMLX
Amylyx Pharmaceuticals, Inc.
SaleDirect29K shares at avg. $32.13$933K - Sep 10, 2026AMLX
Amylyx Pharmaceuticals, Inc.
SaleDirect1.4K shares at avg. $33.16$48K - Aug 18, 2026AMLX
Amylyx Pharmaceuticals, Inc.
AwardDirect60K shares- - Mar 5, 2026AMLX
Amylyx Pharmaceuticals, Inc.
AwardDirect248.9K shares- - Mar 2, 2026AMLX
Amylyx Pharmaceuticals, Inc.
SaleDirect29.3K shares at avg. $14.47$424K - Feb 2, 2026AMLX
Amylyx Pharmaceuticals, Inc.
SaleDirect15.5K shares at avg. $14.69$228K - Jan 16, 2026AMLX
Amylyx Pharmaceuticals, Inc.
SaleDirect2K shares at avg. $13.89$28K - Jan 16, 2026AMLX
Amylyx Pharmaceuticals, Inc.
ExerciseDirect2.8K shares at avg. $7.57$22K - Jan 15, 2026AMLX
Amylyx Pharmaceuticals, Inc.
ExerciseDirect197.2K shares at avg. $7.57$1.5M - Jan 15, 2026AMLX
Amylyx Pharmaceuticals, Inc.
SaleDirect136.2K shares at avg. $13.58$1.8M
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 10, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Sale | 29,025 | $32.13 | $932,553 | Direct |
| Sep 10, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Sale | 1,439 | $33.16 | $47,710 | Direct |
| Aug 18, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Award | 60,039 | - | $0 | Direct |
| Mar 5, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Award | 248,865 | - | $0 | Direct |
| Mar 2, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Sale | 29,282 | $14.47 | $423,760 | Direct |
| Feb 2, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Sale | 15,500 | $14.69 | $227,618 | Direct |
| Jan 16, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Sale | 1,995 | $13.89 | $27,701 | Direct |
| Jan 16, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Exercise | 2,847 | $7.57 | $21,552 | Direct |
| Jan 15, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Exercise | 197,153 | $7.57 | $1,492,448 | Direct |
| Jan 15, 2026 | AMLX Amylyx Pharmaceuticals, Inc. | Sale | 136,193 | $13.58 | $1,849,869 | Direct |
1-10 of 21 transactions