ANTX · NASDAQ · Biotechnology

AN2 Therapeutics (ANTX)

Develops boron-chemistry medicines for hematologic disease, infectious disease, and oncology.

$6.30
Pre-market+0.36 (+6.06%)
At close$5.94(+8.39%)

Breakdown13F · 13D/G · Form 4

Institutions52 holders · as of Mar 31, 202658.02%21.89M shares
Insiders13 holders · as of Sep 2, 202617.35%6.55M shares
Strategic holders2 holders · as of Mar 13, 202610.95%4.13M shares
Otherremainder13.68%5.16M shares

37.74M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
BML Investment Partners, L.P.Institution
15.24%5.75M13Gfiled Feb 13, 2025
Vivo Capital, LLCInstitution
8.36%3.15M13Fas of Mar 31, 2026
Braden Michael LeonardInsider10 percent owner
8.00%3.02MForm 4filed Jun 16, 2025
Vivo Opportunity Fund Holdings, L.P.Institution
7.59%2.86M13Gfiled Mar 13, 2026
Coastlands Capital LPInstitution
7.46%2.82M13Gfiled Jun 4, 2025
Commodore Capital LPInstitution
6.18%2.33M13Fas of Mar 31, 2026
Millennium Management LLCInstitution
5.89%2.22M13Fas of Mar 31, 2026
Integrated Core Strategies (US) LLCStrategic
5.66%2.14M13Gfiled Mar 13, 2026
Adjuvant Global Health Technology Fund, L.P.1Strategic10 percent owner
5.29%2.00M13Gfiled Feb 28, 2025
Spruce Street Capital LPInstitution
4.40%1.66M13Fas of Mar 31, 2026
Almitas Capital LLCInstitution
3.92%1.48M13Fas of Mar 31, 2026
Eric EasomInsiderdirector, officer: Chief Executive Officer
3.80%1.43MForm 4filed Feb 23, 2026
Robin Shane ReadnourInsiderdirector
3.20%1.21MForm 4filed Aug 19, 2026
Vanguard Capital Management LLCInstitution
2.68%1.01M13Fas of Mar 31, 2026
Adage Capital Partners GP, L.L.C.Institution
2.65%1.00M13Fas of Mar 31, 2026
Woodline Partners LPInstitution
2.63%993,67113Fas of Mar 31, 2026
Boxer Capital Management, LLCInstitution
1.98%749,03513Fas of Mar 31, 2026
Stonepine Capital Management, LLCInstitution
1.89%713,84513Fas of Mar 31, 2026
Ameriprise Financial IncInstitution
1.84%696,18113Fas of Mar 31, 2026
Sio Capital Management, LLCInstitution
1.74%657,20013Fas of Mar 31, 2026
Ally Bridge Group (NY) LLCInstitution
1.39%526,31513Fas of Mar 31, 2026
Prosight Management, LPInstitution
1.37%515,75413Fas of Mar 31, 2026
Bank of Nova ScotiaInstitution
1.22%459,19413Fas of Mar 31, 2026
Bank of America Corp /DE/Institution
1.04%393,70213Fas of Mar 31, 2026
BlackRock, Inc.Institution
0.84%318,76813Fas of Mar 31, 2026
  1. Adjuvant Global Health Technology Fund, L.P.'s transaction reports restate only vehicles that traded; the 2025 ownership statement (2.00M) is used instead.

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

52 holders · 21.89M shares · 25 new positions · 38 increased · 8 reduced · 10 closed

HolderShares% outstandingChg q/qFiled
Vivo Capital, LLC3.15M8.36%+3.15MnewMay 20, 2026
Commodore Capital LP2.33M6.18%+2.33MnewMay 15, 2026
Millennium Management LLC2.22M5.89%+2.13MMay 15, 2026
Spruce Street Capital LP1.66M4.40%+1.66MnewMay 14, 2026
Almitas Capital LLC1.48M3.92%0May 15, 2026
Vanguard Capital Management LLC1.01M2.68%+1.01MnewMay 15, 2026
Adage Capital Partners GP, L.L.C.1.00M2.65%+1.00MnewMay 15, 2026
Woodline Partners LP993.7K2.63%+847.7KMay 15, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BML Investment Partners, L.P.19.20%5.75M13GFeb 13, 2025
Commodore Capital LP9.90%3.70M13GMar 16, 2026
Coastlands Capital LP9.30%2.82M13GJun 4, 2025
Vivo Opportunity Fund Holdings, L.P.8.00%2.86M13GMar 13, 2026
Eric Easom7.90%2.23M13GFeb 13, 2026
Adjuvant Global Health Technology Fund, L.P.6.70%2.00M13GFeb 28, 2025
Integrated Core Strategies (US) LLC6.00%2.14M13GMar 13, 2026

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Sep 1, 2026
Margaret M. FitzPatrickdirector
Purchase2,098$5.5310,708
Aug 17, 2026
Robin Shane Readnourdirector
Sale · 2 lots35,402$6.01565,592
Jul 8, 2026
Joshua M. Eizenofficer: See Remarks
Sale5,945$4.17206,554
May 29, 2026
Sarah Joanne Williamsofficer: Principal Accounting Officer
Sale265$4.4366,583
Mar 3, 2026
Sarah Joanne Williamsofficer: Principal Accounting Officer
Sale327$1.0666,848
Jan 6, 2026
Joshua M. Eizenofficer: See Remarks
Sale6,931$1.01152,499
Jan 5, 2026
Joshua M. Eizenofficer: See Remarks
Sale17,923$1.00159,430
Jan 6, 2026
Sanjay Chandaofficer: Chief Development Officer
Sale5,956$1.0175,823
Jan 5, 2026
Sanjay Chandaofficer: Chief Development Officer
Sale3,295$1.0081,779
Jan 6, 2026
Stephen David Priorofficer: Chief Strategy Officer
Sale2,858$1.0159,086

CongressHouse and Senate disclosures

Not reported.