MENLO PARK, CA
AN2 THERAPEUTICS, INC.ANTX— Latest position per institution from SEC 13F filings
15
Institutional holders
37.16M
Total shares held
118.43M
Estimated value
1.86M
Avg. position size
BML CAPITAL MANAGEMENT, LLC
CIK 1616824
Shares
5.75M
Value
7.82M
Filed
Mar 31, 2025
OCTAGON CAPITAL ADVISORS LP
CIK 1839435
Shares
3.22M
Value
6.92M
Filed
Jun 30, 2024
VIVO CAPITAL, LLC
CIK 1674712
Shares
3.15M
Value
15.26M
Filed
Jun 30, 2026
COMMODORE CAPITAL LP
CIK 1831942
Shares
2.93M
Value
14.20M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
2.32M
Value
11.22M
Filed
Jun 30, 2026
FRAZIER LIFE SCIENCES MANAGEMENT, L.P.
CIK 1892134
Shares
2.09M
Value
4.49M
Filed
Jun 30, 2024
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
2M
Value
2.14M
Filed
Sep 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
1.67M
Value
8.06M
Filed
Jun 30, 2026
SPRUCE STREET CAPITAL LP
CIK 2050194
Shares
1.66M
Value
8.04M
Filed
Jun 30, 2026
TCG CROSSOVER MANAGEMENT, LLC
CIK 1839948
Shares
1.56M
Value
1.66M
Filed
Sep 30, 2024
ALMITAS CAPITAL LLC
CIK 1596468
Shares
1.47M
Value
7.11M
Filed
Jun 30, 2026
BVF INC/IL
CIK 1056807
Shares
1.24M
Value
4.03M
Filed
Mar 31, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.24M
Value
6M
Filed
Jun 30, 2026
JANUS HENDERSON GROUP LTD.
CIK 1274173
Shares
1.22M
Value
2.61M
Filed
Jun 30, 2024
AVIDITY PARTNERS MANAGEMENT LP
CIK 1791827
Shares
1.15M
Value
3.74M
Filed
Mar 31, 2024
VANGUARD GROUP INC
CIK 102909
Shares
1.08M
Value
1.23M
Filed
Dec 31, 2025
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 1165408
Shares
1M
Value
4.84M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
952K
Value
4.61M
Filed
Jun 30, 2026
BOXER CAPITAL MANAGEMENT, LLC
CIK 2018299
Shares
749.03K
Value
3.63M
Filed
Jun 30, 2026
PFIZER INC
CIK 78003
Shares
715.29K
Value
815.44K
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BML CAPITAL MANAGEMENT, LLC | 1616824 | 5.75M | 7.82M | Mar 31, 2025 |
| 2 | OCTAGON CAPITAL ADVISORS LP | 1839435 | 3.22M | 6.92M | Jun 30, 2024 |
| 3 | VIVO CAPITAL, LLC | 1674712 | 3.15M | 15.26M | Jun 30, 2026 |
| 4 | COMMODORE CAPITAL LP | 1831942 | 2.93M | 14.20M | Jun 30, 2026 |
| 5 | MILLENNIUM MANAGEMENT LLC | 1273087 | 2.32M | 11.22M | Jun 30, 2026 |
| 6 | FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | 1892134 | 2.09M | 4.49M | Jun 30, 2024 |
| 7 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 2M | 2.14M | Sep 30, 2024 |
| 8 | BLACKROCK, INC. | 2012383 | 1.67M | 8.06M | Jun 30, 2026 |
| 9 | SPRUCE STREET CAPITAL LP | 2050194 | 1.66M | 8.04M | Jun 30, 2026 |
| 10 | TCG CROSSOVER MANAGEMENT, LLC | 1839948 | 1.56M | 1.66M | Sep 30, 2024 |
| 11 | ALMITAS CAPITAL LLC | 1596468 | 1.47M | 7.11M | Jun 30, 2026 |
| 12 | BVF INC/IL | 1056807 | 1.24M | 4.03M | Mar 31, 2024 |
| 13 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.24M | 6M | Jun 30, 2026 |
| 14 | JANUS HENDERSON GROUP LTD. | 1274173 | 1.22M | 2.61M | Jun 30, 2024 |
| 15 | AVIDITY PARTNERS MANAGEMENT LP | 1791827 | 1.15M | 3.74M | Mar 31, 2024 |
| 16 | VANGUARD GROUP INC | 102909 | 1.08M | 1.23M | Dec 31, 2025 |
| 17 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1165408 | 1M | 4.84M | Jun 30, 2026 |
| 18 | CITADEL ADVISORS LLC | 1423053 | 952K | 4.61M | Jun 30, 2026 |
| 19 | BOXER CAPITAL MANAGEMENT, LLC | 2018299 | 749.03K | 3.63M | Jun 30, 2026 |
| 20 | PFIZER INC | 78003 | 715.29K | 815.44K | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.