Filed: 8/14/2026ACC: 0001172661-26-003533
📋 What this filing means
NEXTBIO CAPITAL MANAGEMENT LP filed this quarterly 13F‑HR report disclosing 22 equity positions with a total reported market value of $217.40M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
22
Positions
$217.40M
Total AUM (reported)
12.96M
Total Shares
Allocation by class
COM$138.73M63.8%
SPONSORED ADS$41.90M19.3%
COM NEW$22.73M10.5%
ADS$6.76M3.1%
COM SHS$3.80M1.7%
ADR$3.48M1.6%
Portfolio Concentration
Top 3$77.88M35.8%
4–10$91.05M41.9%
11–25$48.47M22.3%
Top 3 weight
35.8%
Top 10 weight
77.7%
Voting Authority Distribution
Total shares with voting rights: 12.96M
Sole
Full voting authority
12.96M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole22
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings22
Rows:
PROTAGONIST THERAPEUTICS INC
SOLEShares219.33K
TypeSH
Market value$26.89M
12.37%
Sole
219.33K
Shared
0.00
None
0.00
SHATTUCK LABS INC
SOLEShares3.73M
TypeSH
Market value$25.87M
11.90%
Sole
3.73M
Shared
0.00
None
0.00
COMPASS PATHWAYS PLC
SOLEShares1.78M
TypeSH
Market value$25.13M
11.56%
Sole
1.78M
Shared
0.00
None
0.00
STRUCTURE THERAPEUTICS INC
SOLEShares312.50K
TypeSH
Market value$16.77M
7.71%
Sole
312.50K
Shared
0.00
None
0.00
VOR BIOPHARMA INC
SOLEShares889.16K
TypeSH
Market value$16.37M
7.53%
Sole
889.16K
Shared
0.00
None
0.00
RHYTHM PHARMACEUTICALS INC
SOLEShares131.76K
TypeSH
Market value$14.63M
6.73%
Sole
131.76K
Shared
0.00
None
0.00
PALVELLA THERAPEUTICS INC NE
SOLEShares89.91K
TypeSH
Market value$13.74M
6.32%
Sole
89.91K
Shared
0.00
None
0.00
XENON PHARMACEUTICALS INC
SOLEShares183.22K
TypeSH
Market value$11.06M
5.09%
Sole
183.22K
Shared
0.00
None
0.00
ZENAS BIOPHARMA INC
SOLEShares426.74K
TypeSH
Market value$10.83M
4.98%
Sole
426.74K
Shared
0.00
None
0.00
ORIC PHARMACEUTICALS INC
SOLEShares706.12K
TypeSH
Market value$7.65M
3.52%
Sole
706.12K
Shared
0.00
None
0.00
INVENTIVA SA
SOLEShares1.79M
TypeSH
Market value$6.76M
3.11%
Sole
1.79M
Shared
0.00
None
0.00
CRESCENT BIOPHARMA INC.
SOLEShares372.86K
TypeSH
Market value$6.71M
3.09%
Sole
372.86K
Shared
0.00
None
0.00
VAXCYTE INC
SOLEShares107.22K
TypeSH
Market value$6.23M
2.87%
Sole
107.22K
Shared
0.00
None
0.00
COGENT BIOSCIENCES INC
SOLEShares131.07K
TypeSH
Market value$5.07M
2.33%
Sole
131.07K
Shared
0.00
None
0.00
VERASTEM INC
SOLEShares1.31M
TypeSH
Market value$4.99M
2.30%
Sole
1.31M
Shared
0.00
None
0.00
DISC MEDICINE INC
SOLEShares52.66K
TypeSH
Market value$3.85M
1.77%
Sole
52.66K
Shared
0.00
None
0.00
PHARVARIS N V
SOLEShares108.06K
TypeSH
Market value$3.74M
1.72%
Sole
108.06K
Shared
0.00
None
0.00
ZAI LAB LTD
SOLEShares183.36K
TypeSH
Market value$3.48M
1.60%
Sole
183.36K
Shared
0.00
None
0.00
BIOAGE LABS INC
SOLEShares100.73K
TypeSH
Market value$2.47M
1.14%
Sole
100.73K
Shared
0.00
None
0.00
LB PHARMACEUTICALS INC
SOLEShares68.25K
TypeSH
Market value$2.22M
1.02%
Sole
68.25K
Shared
0.00
None
0.00
EVOMMUNE INC
SOLEShares119.06K
TypeSH
Market value$1.58M
0.73%
Sole
119.06K
Shared
0.00
None
0.00
ADICET BIO INC
SOLEShares157.83K
TypeSH
Market value$1.36M
0.63%
Sole
157.83K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
PROTAGONIST THERAPEUTICS INCSOLE | COM | 219.33K | SH | $26.89M 12.37% | 219.33K | 0.00 | 0.00 |
SHATTUCK LABS INCSOLE | COM | 3.73M | SH | $25.87M 11.90% | 3.73M | 0.00 | 0.00 |
COMPASS PATHWAYS PLCSOLE | SPONSORED ADS | 1.78M | SH | $25.13M 11.56% | 1.78M | 0.00 | 0.00 |
STRUCTURE THERAPEUTICS INCSOLE | SPONSORED ADS | 312.50K | SH | $16.77M 7.71% | 312.50K | 0.00 | 0.00 |
VOR BIOPHARMA INCSOLE | COM NEW | 889.16K | SH | $16.37M 7.53% | 889.16K | 0.00 | 0.00 |
RHYTHM PHARMACEUTICALS INCSOLE | COM | 131.76K | SH | $14.63M 6.73% | 131.76K | 0.00 | 0.00 |
PALVELLA THERAPEUTICS INC NESOLE | COM | 89.91K | SH | $13.74M 6.32% | 89.91K | 0.00 | 0.00 |
XENON PHARMACEUTICALS INCSOLE | COM | 183.22K | SH | $11.06M 5.09% | 183.22K | 0.00 | 0.00 |
ZENAS BIOPHARMA INCSOLE | COM | 426.74K | SH | $10.83M 4.98% | 426.74K | 0.00 | 0.00 |
ORIC PHARMACEUTICALS INCSOLE | COM | 706.12K | SH | $7.65M 3.52% | 706.12K | 0.00 | 0.00 |
INVENTIVA SASOLE | ADS | 1.79M | SH | $6.76M 3.11% | 1.79M | 0.00 | 0.00 |
CRESCENT BIOPHARMA INC.SOLE | COM | 372.86K | SH | $6.71M 3.09% | 372.86K | 0.00 | 0.00 |
VAXCYTE INCSOLE | COM | 107.22K | SH | $6.23M 2.87% | 107.22K | 0.00 | 0.00 |
COGENT BIOSCIENCES INCSOLE | COM | 131.07K | SH | $5.07M 2.33% | 131.07K | 0.00 | 0.00 |
VERASTEM INCSOLE | COM NEW | 1.31M | SH | $4.99M 2.30% | 1.31M | 0.00 | 0.00 |
DISC MEDICINE INCSOLE | COM | 52.66K | SH | $3.85M 1.77% | 52.66K | 0.00 | 0.00 |
PHARVARIS N VSOLE | COM | 108.06K | SH | $3.74M 1.72% | 108.06K | 0.00 | 0.00 |
ZAI LAB LTDSOLE | ADR | 183.36K | SH | $3.48M 1.60% | 183.36K | 0.00 | 0.00 |
BIOAGE LABS INCSOLE | COM | 100.73K | SH | $2.47M 1.14% | 100.73K | 0.00 | 0.00 |
LB PHARMACEUTICALS INCSOLE | COM SHS | 68.25K | SH | $2.22M 1.02% | 68.25K | 0.00 | 0.00 |
EVOMMUNE INCSOLE | COM SHS | 119.06K | SH | $1.58M 0.73% | 119.06K | 0.00 | 0.00 |
ADICET BIO INCSOLE | COM NEW | 157.83K | SH | $1.36M 0.63% | 157.83K | 0.00 | 0.00 |