AI Holders Summary · Q1 2026

156 institutions reported IMCR in Q1 2026. RTW INVESTMENTS, LP leads at 10.6% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter

RTW INVESTMENTS, LP

CIK 0001493215

$147M4.9M1.46%Q1 2026 02

FMR LLC

CIK 0000315066

$146M4.8M0.01%Q1 2026 03

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$142M4.7M0.03%Q1 2026 04

PRIMECAP MANAGEMENT CO/CA/

CIK 0000763212

$111M3.7M0.09%Q1 2026 05

Bellevue Group AG

CIK 0001674546

$97M2.8M1.84%Q4 2025 06

Vestal Point Capital, LP

CIK 0001974915

$83M2.8M2.33%Q1 2026 07

BAKER BROS. ADVISORS LP

CIK 0001263508

$81M2.3M0.47%Q4 2025 08

TANG CAPITAL MANAGEMENT LLC

CIK 0001232621

$80M2.6M4.06%Q1 2026 09

Caption Management, LLC

CIK 0001706766

$58M1.9M0.34%Q1 2026 10

Deep Track Capital, LP

CIK 0001856083

$58M1.9M0.95%Q1 2026 11

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$57M1.9M0.04%Q1 2026 12

BVF INC/IL

CIK 0001056807

$50M1.5M1.69%Q4 2025 13

Logos Global Management LP

CIK 0001792126

$45M1.5M2.26%Q1 2026 14

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$37M1.2M0.02%Q1 2026 15

ARMISTICE CAPITAL, LLC

CIK 0001601086

$36M1.2M0.64%Q1 2026 16

Point72 Asset Management, L.P.

CIK 0001603466

$33M1.1M0.04%Q1 2026 17

Fiera Capital Corp

CIK 0001505817

$33M1.1M0.11%Q1 2026 18

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$31M1.0M0.02%Q1 2026 19

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$28M919K0.00%Q1 2026 20

Kynam Capital Management, LP

CIK 0001907884

$27M885K1.65%Q1 2026

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