AI Holders Summary · Q2 2026

505 institutions reported CYTK in Q2 2026. BlackRock, Inc. leads at 20.1% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(5 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$1.7B20.1M0.03%Q2 2026 02

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$1.2B17.5M0.80%Q1 2026 03

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$591M6.9M0.10%Q2 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$572M6.7M0.03%Q2 2026 05

STATE STREET CORP

CIK 0000093751

$553M6.5M0.02%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$521M6.1M0.01%Q2 2026 07

FMR LLC

CIK 0000315066

$429M5.0M0.02%Q2 2026 08

Avoro Capital Advisors LLC

CIK 0001633313

$426M5.0M3.82%Q2 2026 09

BANK OF AMERICA CORP /DE/

CIK 0000070858

$395M4.6M0.03%Q2 2026 10

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$318M3.7M0.02%Q2 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$316M3.7M0.02%Q2 2026 12

RTW INVESTMENTS, LP

CIK 0001493215

$244M2.9M2.08%Q2 2026 13

ARMISTICE CAPITAL, LLC

CIK 0001601086

$233M2.7M2.85%Q2 2026 14

Polar Capital Holdings Plc

CIK 0001837309

$192M2.3M0.45%Q2 2026 15

CITADEL ADVISORS LLC

CIK 0001423053

$168M2.0M0.02%Q2 2026 16

GOLDMAN SACHS GROUP INC

CIK 0000886982

$153M1.8M0.01%Q2 2026 17

Capital Research Global Investors

CIK 0001422848

$144M1.7M0.02%Q2 2026 18

NORTHERN TRUST CORP

CIK 0000073124· Index

$140M1.6M0.02%Q2 2026 19

JPMORGAN CHASE & CO

CIK 0000019617

$139M1.6M0.01%Q2 2026 20

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK 0001644956

$137M1.6M0.41%Q2 2026

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