AI Holders Summary · Q1 2026

231 institutions reported IRWD in Q1 2026. ARMISTICE CAPITAL, LLC leads at 11.0% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(4 on this page)

#HolderValueShares% port.Quarter

ARMISTICE CAPITAL, LLC

CIK 0001601086

$53M15.0M0.94%Q1 2026 02

BlackRock, Inc.

CIK 0002012383

$47M13.4M0.00%Q1 2026 03

UBS Group AG

CIK 0001610520

$43M12.1M0.01%Q1 2026 04

Sarissa Capital Management LP

CIK 0001577524

$32M9.2M20.46%Q1 2026 05

BANK OF AMERICA CORP /DE/

CIK 0000070858

$30M8.7M0.00%Q1 2026 06

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$28M8.1M0.04%Q1 2026 07

AQR CAPITAL MANAGEMENT LLC

CIK 0001167557

$26M7.5M0.01%Q1 2026 08

STATE STREET CORP

CIK 0000093751

$26M7.5M0.00%Q1 2026 09

Vanguard Portfolio Management

CIK 0002100121· Index

$23M6.7M0.00%Q1 2026 10

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$23M6.6M0.03%Q1 2026 11

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$21M6.1M0.00%Q1 2026 12

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$21M5.8M0.02%Q1 2026 13

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$17M4.7M0.00%Q1 2026 14

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$16M4.5M0.00%Q1 2026 15

MARSHALL WACE, LLP

CIK 0001318757

$15M4.4M0.01%Q4 2025 16

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 0000884414

$13M3.6M0.05%Q1 2026 17

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$12M3.4M0.01%Q1 2026 18

FEDERATED HERMES, INC.

CIK 0001056288

$12M3.3M0.02%Q1 2026 19

TWO SIGMA ADVISERS, LP

CIK 0001478735

$11M3.1M0.02%Q4 2025 20

GOLDMAN SACHS GROUP INC

CIK 0000886982

$9M2.7M0.00%Q1 2026

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