BOTHELL, WA
LEONABIO, INC.LONA— Latest position per institution from SEC 13F filings
15
Institutional holders
7.58M
Total shares held
67.46M
Estimated value
378.90K
Avg. position size
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
1.86M
Value
17.09M
Filed
Jun 30, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
777.10K
Value
7.14M
Filed
Jun 30, 2026
ACORN CAPITAL ADVISORS, LLC
CIK 2054410
Shares
634.54K
Value
5.83M
Filed
Jun 30, 2026
NEA MANAGEMENT COMPANY, LLC
CIK 1512848
Shares
464.40K
Value
4.27M
Filed
Jun 30, 2026
TCG CROSSOVER MANAGEMENT, LLC
CIK 1839948
Shares
464.40K
Value
4.27M
Filed
Jun 30, 2026
COMMODORE CAPITAL LP
CIK 1831942
Shares
464.40K
Value
4.27M
Filed
Jun 30, 2026
KALEHUA CAPITAL MANAGEMENT LLC
CIK 2106181
Shares
393.70K
Value
3.62M
Filed
Jun 30, 2026
SPRUCE STREET CAPITAL LP
CIK 2050194
Shares
393.70K
Value
3.62M
Filed
Jun 30, 2026
BLACKSTONE INC.
CIK 1393818
Shares
324.64K
Value
2.98M
Filed
Jun 30, 2026
BML CAPITAL MANAGEMENT, LLC
CIK 1616824
Shares
323.07K
Value
1.34M
Filed
Sep 30, 2025
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 1165408
Shares
300K
Value
2.76M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
275.23K
Value
2.53M
Filed
Jun 30, 2026
SEVEN FLEET CAPITAL MANAGEMENT LP
CIK 2092021
Shares
154.15K
Value
1.42M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
153.79K
Value
1.16M
Filed
Dec 31, 2025
SIMPLIFY ASSET MANAGEMENT INC.
CIK 1846368
Shares
149.28K
Value
1.37M
Filed
Jun 30, 2026
PROPEL BIO MANAGEMENT, LLC
CIK 1969764
Shares
149.28K
Value
1.37M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
80.42K
Value
739.51K
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
79.19K
Value
727.72K
Filed
Jun 30, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
77.42K
Value
711.53K
Filed
Jun 30, 2026
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
60K
Value
248.39K
Filed
Sep 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | PERCEPTIVE ADVISORS LLC | 1224962 | 1.86M | 17.09M | Jun 30, 2026 |
| 2 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 777.10K | 7.14M | Jun 30, 2026 |
| 3 | ACORN CAPITAL ADVISORS, LLC | 2054410 | 634.54K | 5.83M | Jun 30, 2026 |
| 4 | NEA MANAGEMENT COMPANY, LLC | 1512848 | 464.40K | 4.27M | Jun 30, 2026 |
| 5 | TCG CROSSOVER MANAGEMENT, LLC | 1839948 | 464.40K | 4.27M | Jun 30, 2026 |
| 6 | COMMODORE CAPITAL LP | 1831942 | 464.40K | 4.27M | Jun 30, 2026 |
| 7 | KALEHUA CAPITAL MANAGEMENT LLC | 2106181 | 393.70K | 3.62M | Jun 30, 2026 |
| 8 | SPRUCE STREET CAPITAL LP | 2050194 | 393.70K | 3.62M | Jun 30, 2026 |
| 9 | BLACKSTONE INC. | 1393818 | 324.64K | 2.98M | Jun 30, 2026 |
| 10 | BML CAPITAL MANAGEMENT, LLC | 1616824 | 323.07K | 1.34M | Sep 30, 2025 |
| 11 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1165408 | 300K | 2.76M | Jun 30, 2026 |
| 12 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 275.23K | 2.53M | Jun 30, 2026 |
| 13 | SEVEN FLEET CAPITAL MANAGEMENT LP | 2092021 | 154.15K | 1.42M | Jun 30, 2026 |
| 14 | VANGUARD GROUP INC | 102909 | 153.79K | 1.16M | Dec 31, 2025 |
| 15 | SIMPLIFY ASSET MANAGEMENT INC. | 1846368 | 149.28K | 1.37M | Jun 30, 2026 |
| 16 | PROPEL BIO MANAGEMENT, LLC | 1969764 | 149.28K | 1.37M | Jun 30, 2026 |
| 17 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 80.42K | 739.51K | Jun 30, 2026 |
| 18 | BLACKROCK, INC. | 2012383 | 79.19K | 727.72K | Jun 30, 2026 |
| 19 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 77.42K | 711.53K | Jun 30, 2026 |
| 20 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 60K | 248.39K | Sep 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.