Sponsored
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%
Sponsored
Stock Holdings
TickerCompany NameSharesShares β³%Event DateReport DateHistory
Sponsored
BRIDGEBIO ONCOLOGY THERAPEUT BRIDGEBIO ONCOLOGY THERAPEUT2.8M sharesnew addition2025-12-312026-02-17
Sponsored
Sponsored
ZYMEWORKS INC
NewZYMEWORKS INC
Shares23.0M
Event2025-12-31
Filed2026-02-17
ANAB
NewANAPTYSBIO INC
Shares7.9M
Event2025-12-31
Filed2026-02-17
JAZZ
NewJAZZ PHARMACEUTICALS PLC
Shares1.7M
Event2025-12-31
Filed2026-02-17
CRNX
NewCRINETICS PHARMACEUTICALS IN
Shares4.3M
Event2025-12-31
Filed2026-02-17
CNTA
NewCENTESSA PHARMACEUTICALS PLC
Shares3.1M
Event2025-12-31
Filed2026-02-17
CRSP
NewCRISPR THERAPEUTICS AG
Shares1.4M
Event2025-12-31
Filed2026-02-17
MBX
NewMBX BIOSCIENCES INC
Shares2.1M
Event2025-12-31
Filed2026-02-17
IMNM
NewIMMUNOME INC
Shares2.9M
Event2025-12-31
Filed2026-02-17
New
Shares4.6M
Event2025-12-31
Filed2026-02-17
ORIC
NewORIC PHARMACEUTICALS INC
Shares6.7M
Event2025-12-31
Filed2026-02-17
GLPG
NewGALAPAGOS NV
Shares1.7M
Event2025-12-31
Filed2026-02-17
MREO
848.26%MEREO BIOPHARMA GROUP PLC
Shares74.5M
Event2026-01-02
Filed2026-01-09
BRIDGEBIO ONCOLOGY THERAPEUT
NewBRIDGEBIO ONCOLOGY THERAPEUT
Shares2.8M
Event2025-12-31
Filed2026-02-17
ETON
NewETON PHARMACEUTICALS INC
Shares2.0M
Event2025-12-31
Filed2026-02-17
CGON
NewCG ONCOLOGY INC
Shares772.0K
Event2025-12-31
Filed2026-02-17
ZBIO
NewZENAS BIOPHARMA INC
Shares789.5K
Event2025-12-31
Filed2026-02-17
NGNE
NewNEUROGENE INC
Shares1.3M
Event2025-12-31
Filed2026-02-17
GPCR
NewSTRUCTURE THERAPEUTICS INC
Shares334.4K
Event2025-12-31
Filed2026-02-17
PCVX
NewVAXCYTE INC
Shares450.0K
Event2025-12-31
Filed2026-02-17
AQST
NewAQUESTIVE THERAPEUTICS INC
Shares2.6M
Event2025-12-31
Filed2026-02-17
New
Shares4.0M
Event2025-12-31
Filed2026-02-17
ATARA BIOTHERAPEUTICS INC
NewATARA BIOTHERAPEUTICS INC
Shares573.2K
Event2025-12-31
Filed2026-02-17
MNKD
NewMANNKIND CORP
Shares1.7M
Event2025-12-31
Filed2026-02-17
NUVB.WS
NewNUVATION BIO INC
Shares963.3K
Event2025-12-31
Filed2026-02-17
EOLS
NewEVOLUS INC
Shares675.0K
Event2025-12-31
Filed2026-02-17
IBIO INC
0.00%IBIO INC
Shares2.2M
Event2025-12-31
Filed2026-02-17
CAMP
NewCAMP4 THERAPEUTICS CORP
Shares325.0K
Event2025-12-31
Filed2026-02-17
SRZNW
NewSURROZEN INC
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
NewCG ONCOLOGY INC
Shares292.8K
Event2025-12-31
Filed2026-02-17
XNCR Call
NewXENCOR INC
Shares67.5K
Event2025-12-31
Filed2026-02-17
Put Option Holdings
No put option holdings data available
No put option holdings data available