WEAVER GREGORY L
SEC insider (Form 3/4/5 filer). CIK 0001251779. Chief Financial Officer at Altimmune, Inc. (ALT). 14 reported Form 4/5 transactions since Sep 2024; latest on Oct 1, 2026. Located in GAITHERSBURG, MD.
Companies WEAVER GREGORY L has filed insider reports for
- Altimmune, Inc. (ALT): Officer, Chief Financial Officer
WEAVER GREGORY L
CIK: 0001251779
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)
Altimmune, Inc.
Discretionary Trading P&L
Holdings
Transaction History (14 total)
- Oct 1, 2026ALT
Altimmune, Inc.
ExerciseDirect14.5K shares- - Oct 1, 2026ALT
Altimmune, Inc.
Tax PaymentDirect4.4K shares at avg. $2.76$12K - Jul 31, 2026ALT
Altimmune, Inc.
AwardDirect1.8K shares at avg. $2.41$4K - Apr 1, 2026ALT
Altimmune, Inc.
PurchaseDirect10K shares at avg. $3.15$31K - Mar 6, 2026ALT
Altimmune, Inc.
PurchaseDirect5K shares at avg. $3.54$18K - Feb 26, 2026ALT
Altimmune, Inc.
AwardDirectRestricted Stock Units
111K shares- - Feb 26, 2026ALT
Altimmune, Inc.
AwardDirectStock Options (option to buy)
259K shares- - Nov 11, 2025ALT
Altimmune, Inc.
ExerciseDirect18.8K shares- - Nov 11, 2025ALT
Altimmune, Inc.
Tax PaymentDirect5.7K shares at avg. $4.28$24K - Oct 1, 2025ALT
Altimmune, Inc.
AwardDirectRestricted Stock Units
57.9K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 1, 2026 | ALT Altimmune, Inc. | Exercise | 14,475 | - | $0 | Direct |
| Oct 1, 2026 | ALT Altimmune, Inc. | Tax Payment | 4,379 | $2.76 | $12,086 | Direct |
| Jul 31, 2026 | ALT Altimmune, Inc. | Award | 1,753 | $2.41 | $4,232 | Direct |
| Apr 1, 2026 | ALT Altimmune, Inc. | Purchase | 10,000 | $3.15 | $31,499 | Direct |
| Mar 6, 2026 | ALT Altimmune, Inc. | Purchase | 5,000 | $3.54 | $17,700 | Direct |
| Feb 26, 2026 | ALT Altimmune, Inc. | Award Restricted Stock Units | 111,000 | - | - | Direct |
| Feb 26, 2026 | ALT Altimmune, Inc. | Award Stock Options (option to buy) | 259,000 | - | - | Direct |
| Nov 11, 2025 | ALT Altimmune, Inc. | Exercise | 18,750 | - | - | Direct |
| Nov 11, 2025 | ALT Altimmune, Inc. | Tax Payment | 5,672 | $4.28 | $24,276 | Direct |
| Oct 1, 2025 | ALT Altimmune, Inc. | Award Restricted Stock Units | 57,900 | - | - | Direct |
1-10 of 14 transactions