BOTHELL, WA
LEONABIO, INC.LONA— Latest position per institution from SEC 13F filings
15
Institutional holders
6.88M
Total shares held
67.45M
Estimated value
343.80K
Avg. position size
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
1.86M
Value
19.11M
Filed
Mar 31, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
727.48K
Value
7.48M
Filed
Mar 31, 2026
ACORN CAPITAL ADVISORS, LLC
CIK 2054410
Shares
634.54K
Value
6.52M
Filed
Mar 31, 2026
TCG CROSSOVER MANAGEMENT, LLC
CIK 1839948
Shares
464.40K
Value
4.67M
Filed
Mar 31, 2026
NEA MANAGEMENT COMPANY, LLC
CIK 1512848
Shares
464.40K
Value
4.77M
Filed
Mar 31, 2026
COMMODORE CAPITAL LP
CIK 1831942
Shares
464.40K
Value
4.77M
Filed
Mar 31, 2026
SPRUCE STREET CAPITAL LP
CIK 2050194
Shares
393.70K
Value
3.84M
Filed
Mar 31, 2026
KALEHUA CAPITAL MANAGEMENT LLC
CIK 2106181
Shares
393.70K
Value
4.05M
Filed
Mar 31, 2026
BML CAPITAL MANAGEMENT, LLC
CIK 1616824
Shares
323.07K
Value
1.34M
Filed
Sep 30, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
194.76K
Value
2M
Filed
Mar 31, 2026
SEVEN FLEET CAPITAL MANAGEMENT LP
CIK 2092021
Shares
164.68K
Value
1.69M
Filed
Mar 31, 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
1.53M
Filed
Mar 31, 2026
PROPEL BIO MANAGEMENT, LLC
CIK 1969764
Shares
149.28K
Value
1.50M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
80.32K
Value
826.21K
Filed
Mar 31, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
64.22K
Value
660.20K
Filed
Mar 31, 2026
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
60K
Value
248.39K
Filed
Sep 30, 2025
BLACKROCK, INC.
CIK 2012383
Shares
56.05K
Value
576.20K
Filed
Mar 31, 2026
VANGUARD FIDUCIARY TRUST CO
CIK 933478
Shares
40.04K
Value
411.60K
Filed
Mar 31, 2026
PATHSTONE HOLDINGS, LLC
CIK 2011612
Shares
38.61K
Value
278.90K
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | PERCEPTIVE ADVISORS LLC | 1224962 | 1.86M | 19.11M | Mar 31, 2026 |
| 2 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 727.48K | 7.48M | Mar 31, 2026 |
| 3 | ACORN CAPITAL ADVISORS, LLC | 2054410 | 634.54K | 6.52M | Mar 31, 2026 |
| 4 | TCG CROSSOVER MANAGEMENT, LLC | 1839948 | 464.40K | 4.67M | Mar 31, 2026 |
| 5 | NEA MANAGEMENT COMPANY, LLC | 1512848 | 464.40K | 4.77M | Mar 31, 2026 |
| 6 | COMMODORE CAPITAL LP | 1831942 | 464.40K | 4.77M | Mar 31, 2026 |
| 7 | SPRUCE STREET CAPITAL LP | 2050194 | 393.70K | 3.84M | Mar 31, 2026 |
| 8 | KALEHUA CAPITAL MANAGEMENT LLC | 2106181 | 393.70K | 4.05M | Mar 31, 2026 |
| 9 | BML CAPITAL MANAGEMENT, LLC | 1616824 | 323.07K | 1.34M | Sep 30, 2025 |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 194.76K | 2M | Mar 31, 2026 |
| 11 | SEVEN FLEET CAPITAL MANAGEMENT LP | 2092021 | 164.68K | 1.69M | Mar 31, 2026 |
| 12 | VANGUARD GROUP INC | 102909 | 153.79K | 1.16M | Dec 31, 2025 |
| 13 | SIMPLIFY ASSET MANAGEMENT INC. | 1846368 | 149.28K | 1.53M | Mar 31, 2026 |
| 14 | PROPEL BIO MANAGEMENT, LLC | 1969764 | 149.28K | 1.50M | Mar 31, 2026 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 80.32K | 826.21K | Mar 31, 2026 |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 64.22K | 660.20K | Mar 31, 2026 |
| 17 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 60K | 248.39K | Sep 30, 2025 |
| 18 | BLACKROCK, INC. | 2012383 | 56.05K | 576.20K | Mar 31, 2026 |
| 19 | VANGUARD FIDUCIARY TRUST CO | 933478 | 40.04K | 411.60K | Mar 31, 2026 |
| 20 | PATHSTONE HOLDINGS, LLC | 2011612 | 38.61K | 278.90K | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.