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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — MMED
Institutional Holdings
Insider Transactions
US Institutional Ownership
100.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
8.33M
$124.0M
--
+1.46M
2026-06-30
MILLENNIUM MANAGEMENT LLC
3.06M
$45.0M
80.83%
+467.2K
2026-06-30
CITADEL ADVISORS LLC
2.90M
$43.0M
76.65%
+39.9K
2026-06-30
Longaeva Partners L.P.
2.81M
$42.0M
74.29%
-365.7K
2026-06-30
Sessa Capital IM, L.P.
2.00M
$29.0M
52.82%
--
2026-06-30
BlackRock, Inc.
2.00M
$29.0M
52.72%
+1.97M
2026-06-30
NORGES BANK
1.96M
$29.0M
51.79%
--
2026-06-30
Rock Springs Capital Management LP
1.52M
$22.0M
40.14%
+465.0K
2026-06-30
ExodusPoint Capital Management, LP
1.44M
$21.0M
37.95%
--
2026-06-30
FMR LLC
1.08M
$16.0M
28.54%
-284.3K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
956.0K
$14.0M
25.25%
+710.1K
2026-06-30
Boston Partners
902.4K
$13.0M
23.83%
+57.4K
2026-06-30
J. Goldman & Co LP
830.2K
$12.0M
21.92%
--
2026-06-30
Nuveen, LLC
539.3K
$8.0M
14.24%
--
2026-06-30
UBS Group AG
413.4K
$6.0M
10.92%
+102.1K
2026-06-30
STATE STREET CORP
403.3K
$6.0M
10.65%
--
2026-06-30
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
375.0K
$5.0M
9.90%
-375.0K
2026-06-30
FIRST TRUST ADVISORS LP
366.3K
$5.0M
9.67%
+267.1K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
323.3K
$4.0M
8.54%
--
2026-06-30
ADAGE CAPITAL PARTNERS GP, L.L.C.
300.0K
$4.0M
7.92%
--
2026-06-30
Burkehill Global Management, LP
300.0K
$4.0M
7.92%
--
2026-06-30
READYSTATE ASSET MANAGEMENT LP
294.3K
$4.0M
7.77%
-20.7K
2026-06-30
NEUBERGER BERMAN GROUP LLC
264.7K
$3.0M
6.99%
--
2026-06-30
TUDOR INVESTMENT CORP ET AL
258.2K
$3.0M
6.82%
+242.3K
2026-06-30
Alberta Investment Management Corp
250.0K
$3.0M
6.60%
--
2026-06-30
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