The Analysis of EcoR1 Capital, LLC's Holdings & P&L


Currently, EcoR1 Capital, LLC holds 30 types of securities in its portfolio with a total value $2.2B. In the most recent quarter, they have increased their positions in N/A (+23.0M shares, valued at $604.8M), ANAB (+7.9M shares, valued at $382.0M), JAZZ (+1.7M shares, valued at $290.1M); initiated new positions in N/A (+23.0M shares, valued at $604.8M), ANAB (+7.9M shares, valued at $382.0M), JAZZ (+1.7M shares, valued at $290.1M).


1M P&L
+208.7M+12.71%
3M P&L
+223.8M+13.76%
HY P&L
+335.7M+22.16%

P&L figures are estimated based on reported 13F stock holdings and market price changes. They are approximations and may not reflect actual fund performance. Stock split events may also affect the accuracy of these calculations, and we cannot guarantee that all splits have been fully accounted for.

Top Holding Treemap

Top Industries by Value

1Biotechnology1.5B
95.9%
2Drug Manufacturers - Specialty & Generic55.8M
3.5%
3N/A8.7M
0.6%

Top Industries by Stock Count

1Biotechnology21 stocks
80.8%
2Drug Manufacturers - Specialty & Generic3 stocks
11.5%
3N/A2 stocks
7.7%
Stock Holdings
ZYMEWORKS INC
ZYMEWORKS INC
New
Shares23.0M
Event2025-12-31
Filed2026-02-17
ANAB
ANAPTYSBIO INC
New
Shares7.9M
Event2025-12-31
Filed2026-02-17
JAZZ
JAZZ PHARMACEUTICALS PLC
New
Shares1.7M
Event2025-12-31
Filed2026-02-17
CRNX
CRINETICS PHARMACEUTICALS IN
New
Shares4.3M
Event2025-12-31
Filed2026-02-17
CNTA
CENTESSA PHARMACEUTICALS PLC
New
Shares3.1M
Event2025-12-31
Filed2026-02-17
CRSP
CRISPR THERAPEUTICS AG
New
Shares1.4M
Event2025-12-31
Filed2026-02-17
MBX
MBX BIOSCIENCES INC
New
Shares2.1M
Event2025-12-31
Filed2026-02-17
IMNM
IMMUNOME INC
New
Shares2.9M
Event2025-12-31
Filed2026-02-17
New
Shares4.6M
Event2025-12-31
Filed2026-02-17
ORIC
ORIC PHARMACEUTICALS INC
New
Shares6.7M
Event2025-12-31
Filed2026-02-17
GLPG
GALAPAGOS NV
New
Shares1.7M
Event2025-12-31
Filed2026-02-17
MREO
MEREO BIOPHARMA GROUP PLC
848.26%
Shares74.5M
Event2026-01-02
Filed2026-01-09
BRIDGEBIO ONCOLOGY THERAPEUT
BRIDGEBIO ONCOLOGY THERAPEUT
New
Shares2.8M
Event2025-12-31
Filed2026-02-17
ETON
ETON PHARMACEUTICALS INC
New
Shares2.0M
Event2025-12-31
Filed2026-02-17
CGON
CG ONCOLOGY INC
New
Shares772.0K
Event2025-12-31
Filed2026-02-17
ZBIO
ZENAS BIOPHARMA INC
New
Shares789.5K
Event2025-12-31
Filed2026-02-17
NGNE
NEUROGENE INC
New
Shares1.3M
Event2025-12-31
Filed2026-02-17
GPCR
STRUCTURE THERAPEUTICS INC
New
Shares334.4K
Event2025-12-31
Filed2026-02-17
PCVX
VAXCYTE INC
New
Shares450.0K
Event2025-12-31
Filed2026-02-17
AQST
AQUESTIVE THERAPEUTICS INC
New
Shares2.6M
Event2025-12-31
Filed2026-02-17
New
Shares4.0M
Event2025-12-31
Filed2026-02-17
ATARA BIOTHERAPEUTICS INC
ATARA BIOTHERAPEUTICS INC
New
Shares573.2K
Event2025-12-31
Filed2026-02-17
MNKD
MANNKIND CORP
New
Shares1.7M
Event2025-12-31
Filed2026-02-17
NUVB.WS
NUVATION BIO INC
New
Shares963.3K
Event2025-12-31
Filed2026-02-17
EOLS
EVOLUS INC
New
Shares675.0K
Event2025-12-31
Filed2026-02-17
IBIO INC
IBIO INC
0.00%
Shares2.2M
Event2025-12-31
Filed2026-02-17
CAMP
CAMP4 THERAPEUTICS CORP
New
Shares325.0K
Event2025-12-31
Filed2026-02-17
SRZNW
SURROZEN INC
New
Shares4.4K
Event2025-12-31
Filed2026-02-17
New
SharesN/A
Event2025-12-31
Filed2026-02-17
New
SharesN/A
Event2025-12-31
Filed2026-02-17

Call Option Holdings
CGON Call
CG ONCOLOGY INC
New
Shares292.8K
Event2025-12-31
Filed2026-02-17
XNCR Call
XENCOR INC
New
Shares67.5K
Event2025-12-31
Filed2026-02-17

Put Option Holdings
No put option holdings data available
EcoR1 Capital, LLC Institutional Holdings, Portfolio & P&L β€” TradeFomo