AI Holders Summary · Q1 2026

43 institutions reported ARTV in Q1 2026. RA CAPITAL MANAGEMENT, L.P. leads at 63.9% 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

$63M9.9M0.67%Q1 2026 02

5AM Venture Management, LLC

CIK 0001799883

$10M2.4M3.17%Q4 2025 03

VR Adviser, LLC

CIK 0001615982

$7M1.6M0.34%Q4 2025 04

venBio Partners LLC

CIK 0001776382

$3M531K1.22%Q1 2026 05

FRANKLIN RESOURCES INC

CIK 0000038777

$3M520K0.00%Q1 2026 06

Revelation Capital Management, LLC

CIK 0001801811

$2M299K2.86%Q1 2026 07

BlackRock, Inc.

CIK 0002012383

$1M213K0.00%Q1 2026 08

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$1M208K0.00%Q1 2026 09

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$1M194K0.00%Q1 2026 10

Simplify Asset Management Inc.

CIK 0001846368

$983K101K0.01%Q2 2026 11

Propel Bio Management, LLC

CIK 0001969764

$950K146K0.60%Q1 2026 12

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$794K123K0.00%Q1 2026 13

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$741K115K0.00%Q1 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$655K102K0.00%Q1 2026 15

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$515K80K0.00%Q1 2026 16

Alyeska Investment Group, L.P.

CIK 0001453072

$429K100K0.00%Q4 2025 17

MARSHALL WACE, LLP

CIK 0001318757

$341K80K0.00%Q4 2025 18

JANE STREET GROUP, LLC

CIK 0001595888· Market maker

$254K39K0.00%Q1 2026 19

STATE STREET CORP

CIK 0000093751

$231K36K0.00%Q1 2026 20

BRIDGEWAY CAPITAL MANAGEMENT, LLC

CIK 0001107261

$225K35K0.00%Q1 2026

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