Klaus Schafer

Insider Reports History

Reporting-owner location: Gaithersburg, MD
Latest reporting-owner signature: /s/ Gregory Weaver, as Attorney-in-Fact
Source: Latest parsed Forms 3/4/5 signature
Transaction source note: Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Klaus Schafer

Form 4 holding Director

Altimmune, Inc.

Security class: Stock Options (option to buy)
Shares / value: 48,800
Estimated value
Report date: 01 May 2026
Price
Ownership: Direct
Underlying class: Common Stock, par value $0.0001
Underlying amount

Insider Reports Filed by Klaus Schafer

4 ALT

Altimmune, Inc.

Report period: 01 May 2026
Transactions: 1
Transaction value: $0
Accepted by SEC: 01 May 2026, 16:16
Role: Director
Next action: Open filing details

4 ALT

Altimmune, Inc.

Report period: 25 Sep 2025
Transactions: 1
Transaction value: $0
Accepted by SEC: 29 Sep 2025, 16:15
Role: Director
Next action: Open filing details

4 ALT

Altimmune, Inc.

Report period: 26 Sep 2024
Transactions: 1
Transaction value: $0
Accepted by SEC: 30 Sep 2024, 18:34
Role: Director
Next action: Open filing details

4 ALT

Altimmune, Inc.

Report period: 28 Sep 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 29 Sep 2023, 17:02
Role: Director
Next action: Open filing details

4 ALT

Altimmune, Inc.

Report period: 29 Sep 2022
Transactions: 1
Transaction value: $0
Accepted by SEC: 30 Sep 2022, 21:21
Role: Director
Next action: Open filing details

4 ALT

Altimmune, Inc.

Report period: 20 Jun 2022
Transactions: 6
Transaction value: +$670
Accepted by SEC: 22 Jun 2022, 16:10
Role: Director
Next action: Open filing details

4 ALT

Altimmune, Inc.

Report period: 23 Sep 2021
Transactions: 1
Transaction value: $0
Accepted by SEC: 24 Sep 2021, 20:47
Role: Director
Next action: Open filing details

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