EcoR1 Capital, LLC

Reported value$2.02Bas of Jun 30, 2026

Positions31 9 new, 7 sold out

Top 10 weight88%ZYME alone is 30%

FiledAug 1445 days after quarter end

Portfolio · as of Jun 30, 2026

Where the money is

New or addedTrimmedHeld

ZYME

ANAB

AKTS

CGON

ETON

Eton Pharmaceuticals INC

3.9%

CRSP

Crispr Therapeutics AG

3.8%

ORIC

Oric Pharmaceuticals INC

3.6%

TRAX

First Tracks Biotherapeutics

3.2%New

LKFT

Lakefront Biotherapeutics NV

2.5%

NGNE

Neurogene INC

2.0%

21 others

12.0%

Box size is the share of the fund's reported holdings. 13F only covers US-listed stocks, so foreign holdings and short positions are missing.

What changed

Biggest moves since Mar 31, 2026

Filed Aug 14, 2026, compared with the May 15, 2026 filing

add_circleNew

TRAX $63.9M
FULC $24M
LEGN $23.1M
AURA $11.8M

arrow_upwardAdded

ATRA +1458%
STOK +635%
CGON +36%

arrow_downwardTrimmed

RLAY −63%
ERAS −63%
MBX −50%

remove_circleSold out

JAZZ $323M
Centessa Pharmaceuticals PLC $238M
CRNX $156M
XNCR $26.3M