Richardson Linda M
SEC insider (Form 3/4/5 filer). CIK 0001595064. Chief Commercial Officer at Altimmune, Inc. (ALT). 4 reported Form 4/5 transactions since Sep 2024; latest on Sep 16, 2026. Located in GAITHERSBURG, MD.
Companies Richardson Linda M has filed insider reports for
- Altimmune, Inc. (ALT): Officer, Chief Commercial Officer
Richardson Linda M
CIK: 0001595064
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)1 (25.0%)
Derivative conversions
Awards (A)2 (50.0%)
Compensation grants
Other (G, F, J, C, D, …)1 (25.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
ALT
Altimmune, Inc.
Officer
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Sep 16, 2026ALT
Altimmune, Inc.
ExerciseDirect24K shares- - Sep 16, 2026ALT
Altimmune, Inc.
Tax PaymentDirect6.8K shares at avg. $3.24$22K - Sep 16, 2025ALT
Altimmune, Inc.
AwardDirectStock Options (option to buy)
278K shares- - Sep 16, 2025ALT
Altimmune, Inc.
AwardDirectRestricted Stock Units
96K shares-
1-4 of 4 transactions