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 $2.3B. In the most recent quarter, they have increased their positions in N/A (+23.0M shares, valued at $575.2M), ANAB (+7.9M shares, valued at $437.0M), JAZZ (+1.7M shares, valued at $322.6M); initiated new positions in N/A (+23.0M shares, valued at $575.2M), ANAB (+7.9M shares, valued at $437.0M), JAZZ (+1.7M shares, valued at $322.6M).
1M P&L
-164.9M-9.31%
3M P&L
+92.4M+6.10%
HY P&L
+136.7M+9.30%
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
1Biotechnology1.6B
96.7%
2Drug Manufacturers - Specialty & Generic53.6M
3.3%
3N/A129.5K
0.0%
Top Industries by Stock Count
1Biotechnology21 stocks
91.3%
2Drug Manufacturers - Specialty & Generic1 stocks
4.3%
3N/A1 stocks
4.3%
Sponsored
Stock Holdings
TickerCompany NameSharesShares β³%Event DateReport DateHistory
Sponsored
BRIDGEBIO ONCOLOGY THERAPEUT BRIDGEBIO ONCOLOGY THERAPEUT2.8M sharesnew addition2026-03-312026-05-15
Sponsored
Sponsored
HELIX ACQUISITION CORP III USD HELIX ACQUISITION CORP III USD200.0K sharesnew addition2026-03-312026-05-15
ZYMEWORKS INC
NewZYMEWORKS INC
Shares23.0M
Event2026-03-31
Filed2026-05-15
ANAB
NewANAPTYSBIO INC
Shares7.9M
Event2026-03-31
Filed2026-05-15
JAZZ
NewJAZZ PHARMACEUTICALS PLC
Shares1.7M
Event2026-03-31
Filed2026-05-15
CNTA
NewCENTESSA PHARMACEUTICALS PLC
Shares6.0M
Event2026-03-31
Filed2026-05-15
CRNX
NewCRINETICS PHARMACEUTICALS IN
Shares4.3M
Event2026-03-31
Filed2026-05-15
AKTIS ONCOLOGY INC
NewAKTIS ONCOLOGY INC
Shares4.8M
Event2026-03-31
Filed2026-05-15
ORIC
NewORIC PHARMACEUTICALS INC
Shares6.7M
Event2026-03-31
Filed2026-05-15
CGON
NewCG ONCOLOGY INC
Shares1.1M
Event2026-03-31
Filed2026-05-15
CRSP
NewCRISPR THERAPEUTICS AG
Shares1.4M
Event2026-03-31
Filed2026-05-15
ETON
NewETON PHARMACEUTICALS INC
Shares2.2M
Event2026-03-31
Filed2026-05-15
GLPG
NewGALAPAGOS NV
Shares1.7M
Event2026-03-31
Filed2026-05-15
XNCR
NewXENCOR INC
Shares2.2M
Event2026-03-31
Filed2026-05-15
NGNE
NewNEUROGENE INC
Shares1.3M
Event2026-03-31
Filed2026-05-15
BRIDGEBIO ONCOLOGY THERAPEUT
NewBRIDGEBIO ONCOLOGY THERAPEUT
Shares2.8M
Event2026-03-31
Filed2026-05-15
MBX
NewMBX BIOSCIENCES INC
Shares777.0K
Event2026-03-31
Filed2026-05-15
RLAY
NewRELAY THERAPEUTICS INC
Shares1.9M
Event2026-03-31
Filed2026-05-15
ZBIO
NewZENAS BIOPHARMA INC
Shares789.5K
Event2026-03-31
Filed2026-05-15
ERAS
NewERASCA INC
Shares900.0K
Event2026-03-31
Filed2026-05-15
New
Shares1.6M
Event2026-05-07
Filed2026-05-07
EIKON THERAPEUTICS INC
NewEIKON THERAPEUTICS INC
Shares732.6K
Event2026-03-31
Filed2026-05-15
REPL
NewREPLIMUNE GROUP INC
Shares1.0M
Event2026-03-31
Filed2026-05-15
ZURA
NewZURA BIO LTD
Shares1.2M
Event2026-03-31
Filed2026-05-15
PHAT
NewPHATHOM PHARMACEUTICALS INC
Shares625.0K
Event2026-03-31
Filed2026-05-15
MREO
NewMEREO BIOPHARMA GROUP PLC
Shares13.4M
Event2026-03-31
Filed2026-05-15
STOK
NewSTOKE THERAPEUTICS INC
Shares100.0K
Event2026-03-31
Filed2026-05-15
PRLD
NewPRELUDE THERAPEUTICS INC
Shares947.0K
Event2026-03-31
Filed2026-05-15
IBIO INC
NewIBIO INC
Shares1.6M
Event2026-03-31
Filed2026-05-15
HELIX ACQUISITION CORP III USD
NewHELIX ACQUISITION CORP III USD
Shares200.0K
Event2026-03-31
Filed2026-05-15
ATARA BIOTHERAPEUTICS INC
NewATARA BIOTHERAPEUTICS INC
Shares99.6K
Event2026-03-31
Filed2026-05-15
SRZNW
NewSURROZEN INC
Shares4.4K
Event2026-03-31
Filed2026-05-15
Call Option Holdings
CNTA Call
NewCENTESSA PHARMACEUTICALS PLC
Shares410.8K
Event2026-03-31
Filed2026-05-15
Put Option Holdings
No put option holdings data available
No put option holdings data available