// company-profile
Altimmune, Inc.
ALTExchangeNasdaqSectorPharmaceutical PreparationsInc.DEFilings105Insiders19
// api This Altimmune, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Altimmune, Inc. insiders bought $110K across 11 transactions with no open-market sales.
- Most active insider: GILL JOHN with 2 transactions totaling $31K.
- Largest single purchase: $47K by Durso Jerome Benedict on Apr 1, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Altimmune, Inc. as of 2026-03-31
Total reported AUM
$198.5M
QoQ change
+9.3%
Reporting period
2026-03-31
#1
STATE STREET CORP
CIK 93751
$22.0M
7.1M shares
#2
BlackRock, Inc.
CIK 2012383
$17.6M
5.7M shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$17.4M
5.7M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 1, 2026 | Lawver Teri L | ALT | Award | 48,800 | $0.00 | $0K |
| May 1, 2026 | Sohn Catherine A. | ALT | Award | 48,800 | $0.00 | $0K |
| May 1, 2026 | Pisano Wayne | ALT | Award | 48,800 | $0.00 | $0K |
| May 1, 2026 | Hodges Philip | ALT | Award | 48,800 | $0.00 | $0K |
| May 1, 2026 | GILL JOHN | ALT | Award | 48,800 | $0.00 | $0K |
45 more transactions hidden
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