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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — IRWD
Institutional Holdings
Insider Transactions
US Institutional Ownership
95.5%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
17.79M
$74.0M
10.77%
+4.43M
2026-06-30
ARMISTICE CAPITAL, LLC
13.93M
$58.0M
8.43%
-1.10M
2026-06-30
Sarissa Capital Management LP
9.19M
$38.0M
5.56%
--
2026-06-30
STATE STREET CORP
8.81M
$37.0M
5.33%
+1.35M
2026-06-30
BANK OF AMERICA CORP /DE/
8.68M
$36.0M
5.26%
+896
2026-06-30
RENAISSANCE TECHNOLOGIES LLC
7.99M
$33.0M
4.84%
-67.8K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
6.61M
$27.0M
4.00%
+511.1K
2026-06-30
AQR CAPITAL MANAGEMENT LLC
6.47M
$27.0M
3.91%
-1.07M
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
5.51M
$23.0M
3.34%
-1.17M
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
4.83M
$20.0M
2.92%
+288.1K
2026-06-30
TWO SIGMA INVESTMENTS, LP
4.56M
$19.0M
2.76%
--
2026-06-30
MARSHALL WACE, LLP
4.29M
$18.0M
2.60%
-235.0K
2026-06-30
JACOBS LEVY EQUITY MANAGEMENT, INC
4.07M
$17.0M
2.46%
+433.5K
2026-06-30
GOLDMAN SACHS GROUP INC
3.31M
$13.0M
2.01%
+623.2K
2026-06-30
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
3.30M
$13.0M
2.00%
-1.44M
2026-06-30
Sixth Street Partners Management Company, L.P.
3.30M
$13.0M
2.00%
--
2026-06-30
FEDERATED HERMES, INC.
3.23M
$13.0M
1.96%
-117.6K
2026-06-30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
3.02M
$12.0M
1.83%
-380.2K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
2.52M
$10.0M
1.53%
+440.8K
2026-06-30
MACKENZIE FINANCIAL CORP
2.37M
$9.0M
1.43%
+1.81M
2026-06-30
MORGAN STANLEY
1.86M
$7.0M
1.13%
+1.04M
2026-06-30
Connor, Clark & Lunn Investment Management Ltd.
1.81M
$7.0M
1.10%
-23.7K
2026-06-30
NORTHERN TRUST CORP
1.37M
$5.0M
0.83%
+108.1K
2026-06-30
Hillsdale Investment Management Inc.
1.25M
$5.0M
0.76%
+13.8K
2026-06-30
WELLS FARGO & COMPANY/MN
1.21M
$5.0M
0.73%
+1.15M
2026-06-30
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