AI Holders Summary · Q2 2026

313 institutions reported RYTM in Q2 2026. RA CAPITAL MANAGEMENT, L.P. leads at 12.9% 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

RA CAPITAL MANAGEMENT, L.P.

CIK 0001346824

$740M6.7M6.43%Q2 2026 02

BlackRock, Inc.

CIK 0002012383

$684M6.2M0.01%Q2 2026 03

BAKER BROS. ADVISORS LP

CIK 0001263508

$600M5.6M3.51%Q4 2025 04

PRIMECAP MANAGEMENT CO/CA/

CIK 0000763212

$352M3.2M0.21%Q2 2026 05

Vanguard Portfolio Management

CIK 0002100121· Index

$348M3.1M0.02%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$334M3.0M0.01%Q2 2026 07

JPMORGAN CHASE & CO

CIK 0000019617

$292M2.7M0.02%Q2 2026 08

STATE STREET CORP

CIK 0000093751

$286M2.6M0.01%Q2 2026 09

WESTFIELD CAPITAL MANAGEMENT CO LP

CIK 0001177719

$245M2.2M0.80%Q2 2026 10

GOLDMAN SACHS GROUP INC

CIK 0000886982

$236M2.1M0.02%Q2 2026 11

PERCEPTIVE ADVISORS LLC

CIK 0001224962

$206M2.4M4.03%Q1 2026 12

FEDERATED HERMES, INC.

CIK 0001056288

$198M1.8M0.29%Q2 2026 13

Polar Capital Holdings Plc

CIK 0001837309

$185M1.7M0.44%Q2 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$170M1.5M0.01%Q2 2026 15

Capital Research Global Investors

CIK 0001422848

$170M1.5M0.02%Q2 2026 16

CITADEL ADVISORS LLC

CIK 0001423053

$145M1.3M0.02%Q2 2026 17

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$144M1.7M0.02%Q1 2026 18

Checkpoint Capital L.P.

CIK 0001977548

$132M1.2M33.79%Q2 2026 19

Siren, L.L.C.

CIK 0002005245

$126M1.1M2.55%Q2 2026 20

MORGAN STANLEY

CIK 0000895421

$123M1.1M0.01%Q2 2026

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