ANTX · Insider trading · 13F holders · Congress trades
AN2 Therapeutics, Inc. (ANTX)
Who is buying and selling ANTX: 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
- 11
- Insider buys, 90 days
- $12K
- Insider sales, 90 days
- $318K
- Congress trades, 12 months
- 0
ANTX at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 3 ANTX insiders filed 1 open-market purchase worth $12K and 4 sales worth $318K on SEC Form 4; 3 of the sales were pre-planned under Rule 10b5-1.
- 11 13F filers hold ANTX among their 50 largest positions, worth $58.6M combined. The biggest bets by portfolio weight are Ally Bridge Group (NY) LLC (3.3%), Stonepine Capital Management, LLC (2.0%) and Almitas Capital LLC (1.7%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in ANTX.
- ANTX last closed at $4.69 on Oct 29, 2026.
ANTX insider trading
Between Aug 1, 2026 and Oct 29, 2026, 3 ANTX insiders filed 1 open-market purchase worth $12K and 4 sales worth $318K on SEC Form 4; 3 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | Readnour Robin Shane | Director | Sale10b5-1 | 1,108 | $6.02 | $7K | SEC |
| Sep 8, 2026 | Readnour Robin Shane | Director | Sale10b5-1 | 16,119 | $6.04 | $97K | SEC |
| Sep 4, 2026 | Williams Sarah Joanne | Principal Accounting Officer | Sale | 272 | $5.53 | $2K | SEC |
| Sep 2, 2026 | FitzPatrick Margaret M | Director | Buy | 2,098 | $5.53 | $12K | SEC |
| Aug 19, 2026 | Readnour Robin Shane | Director | Sale10b5-1 | 35,402 | $6.01 | $213K | SEC |
Who owns ANTX? Hedge funds and superinvestors
11 13F filers hold ANTX among their 50 largest positions, worth $58.6M combined. The biggest bets by portfolio weight are Ally Bridge Group (NY) LLC (3.3%), Stonepine Capital Management, LLC (2.0%) and Almitas Capital LLC (1.7%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Vivo Capital, LLCHedge fund | 1.4% | $15.3M | 3,153,640 | +0.0% shares | Q2 2026 |
| Commodore Capital LPHedge fund | 0.8% | $14.2M | 2,933,680 | +25.7% shares | Q2 2026 |
| Spruce Street Capital LPHedge fund | 1.6% | $8.0M | 1,661,073 | +0.0% shares | Q2 2026 |
| Almitas Capital LLCHedge fund | 1.7% | $7.1M | 1,469,129 | -0.7% shares | Q2 2026 |
| Boxer Capital Management, LLCHedge fund | 0.3% | $3.6M | 749,035 | +0.0% shares | Q2 2026 |
| Stonepine Capital Management, LLCHedge fund | 2.0% | $2.7M | 551,692 | -22.7% shares | Q2 2026 |
| Sio Capital Management, LLCHedge fund | 0.4% | $2.6M | 529,933 | — | Q2 2026 |
| Ally Bridge Group (NY) LLCHedge fund | 3.3% | $2.5M | 526,315 | +0.0% shares | Q2 2026 |
| Prosight Management, LPHedge fund | 0.4% | $2.3M | 474,638 | -8.0% shares | Q2 2026 |
| Velan Capital Investment Management LPHedge fund | 0.1% | $194K | 40,000 | New | Q2 2026 |
| Bronte Capital Management Pty Ltd.Hedge fund | 0.0% | $53K | 10,895 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 11). Screen ANTX in the grand portfolio →
ANTX stock trades by members of Congress
No member of Congress has disclosed a trade in ANTX.
ANTX questions and answers
Are insiders buying ANTX stock?
Between Aug 1, 2026 and Oct 29, 2026, 3 ANTX insiders filed 1 open-market purchase worth $12K and 4 sales worth $318K on SEC Form 4; 3 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own ANTX?
11 13F filers hold ANTX among their 50 largest positions, worth $58.6M combined. The biggest bets by portfolio weight are Ally Bridge Group (NY) LLC (3.3%), Stonepine Capital Management, LLC (2.0%) and Almitas Capital LLC (1.7%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded ANTX?
No member of Congress has disclosed a trade in ANTX.
Who is the largest holder of ANTX?
Among 13F filers, Vivo Capital, LLC reports the largest ANTX position, $15.3M (3,153,640 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Ally Bridge Group (NY) LLC's: 3.3% of its portfolio.
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