AI Holders Summary · Q1 2026

144 institutions reported ACRS in Q1 2026. BML Capital Management, LLC leads at 16.0% 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

BML Capital Management, LLC

CIK 0001616824

$53M14.3M34.31%Q1 2026 02

Deep Track Capital, LP

CIK 0001856083

$35M9.3M0.57%Q1 2026 03

BlackRock, Inc.

CIK 0002012383

$28M7.4M0.00%Q1 2026 04

RA CAPITAL MANAGEMENT, L.P.

CIK 0001346824

$26M6.8M0.27%Q1 2026 05

Vivo Capital, LLC

CIK 0001674712

$25M6.7M2.08%Q1 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$19M5.2M0.00%Q1 2026 07

Frazier Life Sciences Management, L.P.

CIK 0001892134

$18M4.9M0.48%Q1 2026 08

Rock Springs Capital Management LP

CIK 0001595725

$17M4.5M0.99%Q1 2026 09

Decheng Capital LLC

CIK 0002010850

$15M4.0M2.29%Q1 2026 10

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 0001165408

$15M3.9M0.02%Q1 2026 11

BALYASNY ASSET MANAGEMENT L.P.

CIK 0001218710

$13M3.4M0.02%Q1 2026 12

Kalehua Capital Management LLC

CIK 0002106181

$12M3.2M4.57%Q1 2026 13

MORGAN STANLEY

CIK 0000895421

$10M2.7M0.00%Q1 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$9M2.4M0.00%Q1 2026 15

STATE STREET CORP

CIK 0000093751

$8M2.0M0.00%Q1 2026 16

CITADEL ADVISORS LLC

CIK 0001423053

$7M2.3M0.00%Q4 2025 17

BRAIDWELL LP

CIK 0001920938

$6M1.7M0.21%Q1 2026 18

D. E. Shaw & Co., Inc.

CIK 0001009207

$6M2.1M0.00%Q4 2025 19

Vanguard Portfolio Management

CIK 0002100121· Index

$6M1.7M0.00%Q1 2026 20

Palo Alto Investors LP

CIK 0001306923

$6M1.6M0.93%Q1 2026

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