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EcoR1 Capital, LLC

Portfolio Profile

CIK: 0001587114 | San Francisco, CA

Investment Profile

Style

Deep Value

Turnover

Medium

Orientation

Concentrated trader
$2.0B
AUM
31
Positions
88.02%
Top 10 Conc.
99.18%
Top 25 Conc.

Top Holdings

#SecuritySharesValue% of Portfolio
1Zymeworks Inc(ZYME)22,970,388$600.4M29.19%
2Anaptysbio Inc(ANAB)7,880,094$531.9M25.86%
3Aktis Oncology Inc(AKTS)4,824,469$155.5M7.56%
4CG Oncology Inc(CGON)1,494,300$106.2M5.16%
5Eton Pharmaceuticals Inc(ETON)2,171,938$78.6M3.82%
6

Sector Allocation

Latest filing, equity positions only

Healthcare91.7% · $1.8B
Unclassified8.3% · $167.4M

Sector Rotation

Quarter-over-quarter weight changes

SectorPrev %Curr %Change
Healthcare83%91.7%+8.7%
Unclassified17%8.3%-8.7%

Cap Size Rotation

Quarter-over-quarter weight changes by market cap

AUM History

$3.0B | 51 pos.
$3.9B | 51 pos.
$4.0B | 59 pos.
$3.3B | 55 pos.
$2.9B | 64 pos.
$2.6B | 59 pos.
Crispr Therapeutics AG(CRSP)
1,389,276
$75.8M
3.68%
7Oric Pharmaceuticals Inc(ORIC)6,728,116$72.9M3.54%
8First Tracks Biotherapeutics(TRAX)3,174,519$63.9M3.11%
9Lakefront Biotherapeutics NV(GLPG)1,667,119$50.0M2.43%
10Neurogene Inc(NGNE)1,271,342$40.0M1.94%
Cap SizePrev %Curr %Change
Small Cap58.31%78.77%+20.46%
Mid Cap22.79%9.19%-13.6%
Unclassified17%8.3%-8.7%
Micro Cap1.9%3.74%+1.84%
$1.7B | 46 pos.
$1.7B | 37 pos.
$2.1B | 30 pos.
$2.2B | 30 pos.
$2.4B | 30 pos.
$2.1B | 33 pos.
Q3
23
Q4
23
Q1
24
Q2
24
Q3
24
Q4
24
Q1
25
Q2
25
Q3
25
Q4
25
Q1
26
Q2
26

Recent Activity

Quarter-over-quarter position changes

11
New
8
Closed
3
Increased
4
Decreased
15
Unchanged