ALT · Insider trading · 13F holders · Congress trades
Altimmune, Inc. (ALT)
Who is buying and selling ALT: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 8
- Insider buys, 90 days
- $44K
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ALT at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 ALT insider filed 1 open-market purchase worth $44K on SEC Form 4.
- 8 13F filers hold ALT among their 50 largest positions, worth $109.8M combined. The biggest bets by portfolio weight are Trails Edge Capital Partners, LP (1.3%), Great Point Partners LLC (1.2%) and Deep Track Capital, LP (0.9%). In their latest 13Fs, 4 managers opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in ALT.
- ALT last closed at $2.14 on Oct 29, 2026.
ALT insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 ALT insider filed 1 open-market purchase worth $44K on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Durso Jerome Benedict | President and CEO, Director | Buy | 15,000 | $2.95 | $44K | SEC |
Who owns ALT? Hedge funds and superinvestors
8 13F filers hold ALT among their 50 largest positions, worth $109.8M combined. The biggest bets by portfolio weight are Trails Edge Capital Partners, LP (1.3%), Great Point Partners LLC (1.2%) and Deep Track Capital, LP (0.9%). In their latest 13Fs, 4 managers opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Deep Track Capital, LPHedge fund | 0.9% | $58.5M | 19,250,000 | — | Q2 2026 |
| TCG Crossover Management, LLCHedge fund | 0.7% | $30.4M | 10,000,000 | New | Q2 2026 |
| Trails Edge Capital Partners, LPHedge fund | 1.3% | $8.1M | 2,660,000 | New | Q2 2026 |
| Great Point Partners LLCHedge fund | 1.2% | $5.3M | 1,741,232 | New | Q2 2026 |
| Cormorant Asset Management, LPHedge fund | 0.2% | $3.8M | 1,250,000 | New | Q2 2026 |
| Tang Capital Management LLCHedge fund | 0.1% | $2.0M | 666,022 | +0.0% shares | Q2 2026 |
| Beirne Wealth Consulting Services, LLCInstitutional asset manager | 0.2% | $1.2M | 421,858 | +0.0% shares | Q3 2026 |
| Knoll Capital Management, LLCHedge fund | 0.2% | $486K | 160,000 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 7). Screen ALT in the grand portfolio →
ALT stock trades by members of Congress
No member of Congress has disclosed a trade in ALT.
Analysis mentioning ALT
Posts from the blog that cover Altimmune, Inc., newest first.
ALT questions and answers
Are insiders buying ALT stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 ALT insider filed 1 open-market purchase worth $44K on SEC Form 4.
Which hedge funds own ALT?
8 13F filers hold ALT among their 50 largest positions, worth $109.8M combined. The biggest bets by portfolio weight are Trails Edge Capital Partners, LP (1.3%), Great Point Partners LLC (1.2%) and Deep Track Capital, LP (0.9%). In their latest 13Fs, 4 managers opened a new position and 0 added to one.
Has Congress traded ALT?
No member of Congress has disclosed a trade in ALT.
Who is the largest holder of ALT?
Among 13F filers, Deep Track Capital, LP reports the largest ALT position, $58.5M (19,250,000 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Trails Edge Capital Partners, LP's: 1.3% of its portfolio.
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