AI Holders Summary · Q2 2026

128 institutions reported TRAX in Q2 2026. EcoR1 Capital, LLC leads at 13.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(3 on this page)

#HolderValueShares% port.Quarter

EcoR1 Capital, LLC

CIK 0001587114

$64M3.2M3.11%Q2 2026 02

TCG Crossover Management, LLC

CIK 0001839948

$58M2.9M1.40%Q2 2026 03

FMR LLC

CIK 0000315066

$41M2.1M0.00%Q2 2026 04

Affinity Asset Advisors, LLC

CIK 0001773195

$41M2.0M1.85%Q2 2026 05

BlackRock, Inc.

CIK 0002012383

$40M2.0M0.00%Q2 2026 06

Trails Edge Capital Partners, LP

CIK 0002077247

$30M1.5M4.84%Q2 2026 07

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$29M1.5M0.00%Q2 2026 08

Jupiter Topco LLC

CIK 0002146052

$22M1.1M0.01%Q2 2026 09

Woodline Partners LP

CIK 0001784547

$18M917K0.06%Q2 2026 10

Sanofi

CIK 0001121404

$17M822K3.10%Q2 2026 11

MORGAN STANLEY

CIK 0000895421

$16M782K0.00%Q2 2026 12

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 0001165408

$15M729K0.02%Q2 2026 13

BALYASNY ASSET MANAGEMENT L.P.

CIK 0001218710

$14M715K0.02%Q2 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$14M702K0.00%Q2 2026 15

BANK OF AMERICA CORP /DE/

CIK 0000070858

$13M648K0.00%Q2 2026 16

STEMPOINT CAPITAL LP

CIK 0001952142

$13M623K2.16%Q2 2026 17

Palo Alto Investors LP

CIK 0001306923

$12M603K1.68%Q2 2026 18

Sofinnova Investments, Inc.

CIK 0001631134

$11M565K0.59%Q2 2026 19

Vanguard Portfolio Management

CIK 0002100121· Index

$11M547K0.00%Q2 2026 20

Nantahala Capital Management, LLC

CIK 0001472322

$10M500K0.17%Q2 2026

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