AI Holders Summary · Q1 2026

266 institutions reported TARS in Q1 2026. Deep Track Capital, LP leads at 11.2% 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

Deep Track Capital, LP

CIK 0001856083

$253M3.6M4.12%Q1 2026 02

BlackRock, Inc.

CIK 0002012383

$249M3.6M0.00%Q1 2026 03

RTW INVESTMENTS, LP

CIK 0001493215

$235M3.3M2.34%Q1 2026 04

JENNISON ASSOCIATES LLC

CIK 0000053417

$183M2.2M0.11%Q4 2025 05

Paradigm Biocapital Advisors LP

CIK 0001855655

$180M2.6M3.67%Q1 2026 06

JANUS HENDERSON GROUP PLC

CIK 0001274173

$157M2.2M0.08%Q1 2026 07

MORGAN STANLEY

CIK 0000895421

$136M1.9M0.01%Q1 2026 08

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$124M1.8M0.00%Q1 2026 09

BANK OF AMERICA CORP /DE/

CIK 0000070858

$84M1.2M0.01%Q1 2026 10

TANG CAPITAL MANAGEMENT LLC

CIK 0001232621

$83M1.2M4.23%Q1 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$79M1.1M0.00%Q1 2026 12

STATE STREET CORP

CIK 0000093751

$69M978K0.00%Q1 2026 13

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 0000938206

$65M926K0.48%Q1 2026 14

Assenagon Asset Management S.A.

CIK 0001546007· Quasi-passive

$60M947K0.07%Q2 2026 15

LORD, ABBETT & CO. LLC

CIK 0000728100

$59M842K0.19%Q1 2026 16

Invesco Ltd.

CIK 0000914208

$52M742K0.01%Q1 2026 17

FMR LLC

CIK 0000315066

$51M733K0.00%Q1 2026 18

Frazier Life Sciences Management, L.P.

CIK 0001892134

$51M729K1.32%Q1 2026 19

D. E. Shaw & Co., Inc.

CIK 0001009207

$50M615K0.03%Q4 2025 20

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$42M595K0.02%Q1 2026

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