EcoR1 Capital LLC

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Assets, Funds, Holdings

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EcoR1 Capital LLC
CRD #167121
SEC #801-100470
CIK #0001587114
AUM $3.9 B (2025-07-25)
Employees 22 (41% Investors, 0% Brokers)
Phone415-754-3517
Address357 Tehama Street
San Francisco, CA 94103
Source [IAPD] [EDGAR] [Website] [LinkedIn]
Total AUM ($B)
6.04.83.62.41.20.02011201620212026
Sector Form 13F Holdings Value ($B)
Zymeworks Inc 0.3
Apellis Pharmaceuticals Inc 0.2
Jazz Pharmaceuticals Inc 0.2
Anaptysbio Inc 0.2
Crinetics Pharmaceuticals Inc 0.1
Iteos Therapeutics Inc 0.1
CRISPR Therapeutics AG 0.1
Uniqure NV 0.1
BCTG Acquisition Corp 0.1
Xencor Inc 0.0
View All
Holdings by Sector ($B)
5.04.03.02.01.00.02013201720212026
Type Form D Funds Date Sold ($M) AUM ($M)
VC EcoR1 Venture Opportunity Fund LP [2019-08-29] 5.5 89.1
HF EcoR1 Special Opportunity Fund II LP [2016-03-29] 0.0 0.6
HF EcoR1 Special Opportunity Fund I LP [2015-03-30] 0.0 8.8
HF EcoR1 Capital Fund LP [2014-03-25] 117.8 252.0
HF EcoR1 Capital Fund Qualified LP [2014-03-25] 1,811.4 3,573.1
AUM Breakdown Accounts AUM ($B)
By Client Type
(a) Individuals (other than high net worth individuals) 0 0.0
(b) Individuals (high net worth individuals) 0 0.0
(c) Banking or thrift institutions 0 0.0
(d) Investment companies 0 0.0
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 5 3.9
(g) Pension and profit sharing plans 0 0.0
(h) Charitable organizations 0 0.0
(i) State or municipal government entities 0 0.0
(j) Other investment advisers 0 0.0
(k) Insurance companies 0 0.0
(l) Sovereign wealth funds and foreign official institutions 0 0.0
(m) Corporations or other businesses not listed above 0 0.0
(n) Other 0 0.0
Total 5 3.9
By Discretionary
Discretionary 5 3.9
Non-Discretionary 0 0.0
Total 5 3.9
By Non-United States Persons
Non-United States Persons 0.8
United States Persons 3.1
Total 5 3.9
Form D Directors # Filings # Firms 2011 - 2025
Oleg Nodelman 13
Scott Perlen 8
Sarah Marriott 7
EcoR1 Capital LLC 5
Biotech Opportunity GP LLC 2
EDGAR Form CIK 2011 - 2025
13F-HR [0001587114]
3 [0001587114]
4 [0001587114]
SC 13D [0001587114]
SC 13G [0001587114]
Form 13D/13G Filer Form 13D/13G Subject Filed
EcoR1 Capital LLC Oric Pharmaceuticals Inc [2025-08-05]
EcoR1 Capital LLC Hillevax Inc [2025-07-24]
EcoR1 Capital LLC Zymeworks Inc [2025-06-27]
EcoR1 Capital LLC Iteos Therapeutics Inc [2025-05-16]
EcoR1 Capital LLC Iteos Therapeutics Inc [2025-05-08]
EcoR1 Capital LLC Uniqure NV [2024-12-17]
EcoR1 Capital LLC Eton Pharmaceuticals Inc [2024-12-09]
EcoR1 Capital LLC AADI Bioscience Inc [2024-09-03]
EcoR1 Capital LLC Galapagos NV [2024-08-23]
EcoR1 Capital LLC Tectonic Therapeutic Inc [2024-07-01]
View All
Form 3/4/5 Subject 2011 - 2025
EcoR1 Capital, LLC
Adaptimmune Therapeutics PLC
Nodelman OLEG
Zymeworks Inc.
iTeos Therapeutics, Inc.
Prothena Corp Public Ltd Co
Anaptysbio Inc
Mersana Therapeutics, Inc.
Tango Therapeutics, Inc.
Mirati Therapeutics, Inc.
View All
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Ghisallo Capital Management LLC
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