Linda M. Richardson
CIK: 0001595064
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 (4 total)
- Sep 16, 2026ALT
Altimmune, Inc.
Exercise(M)Direct24K shares- - Sep 16, 2026ALT
Altimmune, Inc.
Tax Payment(F)Direct6.8K shares at avg. $3.24$22K - Sep 16, 2025ALT
Altimmune, Inc.
Award(A)DirectStock Options (option to buy)
278K shares- - Sep 16, 2025ALT
Altimmune, Inc.
Award(A)DirectRestricted Stock Units
96K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 16, 2026 | ALT Altimmune, Inc. | Exercise(M) | 24,000 | - | $0 | Direct |
| Sep 16, 2026 | ALT Altimmune, Inc. | Tax Payment(F) | 6,826 | $3.24 | $22,116 | Direct |
| Sep 16, 2025 | ALT Altimmune, Inc. | Award(A) Stock Options (option to buy) | 278,000 | - | - | Direct |
| Sep 16, 2025 | ALT Altimmune, Inc. | Award(A) Restricted Stock Units | 96,000 | - | - | Direct |
1-4 of 4 transactions
About Richardson Linda M
Richardson Linda M (SEC CIK 0001595064) files insider reports with the SEC as Chief Commercial Officer of Altimmune, Inc. (ALT).
Signal8 holds 3 ownership filings by Richardson Linda M (1 Form 3, 2 Form 4), filed between Sep 17, 2025 and Sep 17, 2026. Those filings report 4 transactions, from Sep 16, 2025 to Sep 16, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Richardson Linda M's filings is in GAITHERSBURG, MD.
Recent filings by Richardson Linda M
Other insiders filing for Altimmune, Inc. (ALT)
- Arbet-Engels Christophe, Chief Medical Officer
- WEAVER GREGORY L, Chief Financial Officer
- MENZIUSO RICHARD THOMAS, Principal Accounting Officer
- Durso Jerome Benedict, President and CEO
- Roberts M Scot, Chief Scientific Officer
- Lawver Teri L, Director