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Business Summary
Filings
Ownership
Valuation
Ownership — OSTX
Institutional Holdings
Insider Transactions
US Institutional Ownership
6.4%
Institution
Shares
Value
Ownership %
Change
Filing Date
VANGUARD CAPITAL MANAGEMENT LLC
777.7K
$1.0M
1.72%
+308.2K
2026-06-30
CM Management, LLC
400.0K
--
0.88%
--
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
301.8K
--
0.67%
+21.7K
2026-06-30
HOWARD FINANCIAL SERVICES, LTD.
248.0K
--
0.55%
+2.6K
2026-06-30
BlackRock, Inc.
242.5K
--
0.54%
+177.7K
2026-06-30
VANGUARD FIDUCIARY TRUST CO
174.1K
--
0.38%
+57.5K
2026-06-30
STATE STREET CORP
120.1K
--
0.27%
+28.9K
2026-06-30
MARSHALL WACE, LLP
100.6K
--
0.22%
-9.3K
2026-06-30
HighTower Advisors, LLC
85.5K
--
0.19%
+70.3K
2026-06-30
NORTHERN TRUST CORP
70.8K
--
0.16%
+4.8K
2026-06-30
Beacon Pointe Advisors, LLC
62.5K
--
0.14%
--
2026-06-30
BRIDGEWAY CAPITAL MANAGEMENT, LLC
45.0K
--
0.10%
+20.0K
2026-06-30
INGALLS & SNYDER LLC
36.7K
--
0.08%
--
2026-06-30
TWO SIGMA INVESTMENTS, LP
30.4K
--
0.07%
--
2026-06-30
STIFEL FINANCIAL CORP
27.9K
--
0.06%
+12.9K
2026-06-30
JANE STREET GROUP, LLC
27.0K
--
0.06%
-13.3K
2026-06-30
AXQ CAPITAL, LP
24.6K
--
0.05%
--
2026-06-30
Vanguard Global Advisers, LLC
21.0K
--
0.05%
--
2026-06-30
Stratos Wealth Advisors, LLC
19.3K
--
0.04%
+5.5K
2026-06-30
Quadrature Capital Ltd
15.7K
--
0.03%
--
2026-06-30
JONES FINANCIAL COMPANIES LLLP
14.5K
--
0.03%
+1.6K
2026-06-30
MORGAN STANLEY
13.0K
--
0.03%
+3.5K
2026-06-30
UBS Group AG
8.8K
--
0.02%
-339.9K
2026-06-30
Rockefeller Capital Management L.P.
7.5K
--
0.02%
--
2026-06-30
Steward Partners Investment Advisory, LLC
5.7K
--
0.01%
--
2026-06-30
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