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Business Summary
Filings
Ownership
Valuation
Ownership — OPRX
Institutional Holdings
Insider Transactions
US Institutional Ownership
56.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
Whetstone Capital Advisors, LLC
1.51M
$8.0M
8.01%
--
2026-06-30
ROYCE & ASSOCIATES LP
1.09M
$6.0M
5.78%
+201.4K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
699.6K
$4.0M
3.71%
+14.2K
2026-06-30
RICE HALL JAMES & ASSOCIATES, LLC
633.8K
$3.0M
3.37%
+31.9K
2026-06-30
BLAIR WILLIAM & CO/IL
607.9K
$3.0M
3.23%
-7.1K
2026-06-30
AQR CAPITAL MANAGEMENT LLC
584.0K
$3.0M
3.10%
+369.0K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
477.7K
$2.0M
2.54%
-85.9K
2026-06-30
BlackRock, Inc.
445.4K
$2.0M
2.36%
-718.1K
2026-06-30
Parkman Healthcare Partners LLC
350.3K
$2.0M
1.86%
-379.0K
2026-06-30
Bullseye Asset Management LLC
258.3K
$1.0M
1.37%
+31.8K
2026-06-30
AWM Investment Company, Inc.
240.4K
$1.0M
1.28%
+10.0K
2026-06-30
CITADEL ADVISORS LLC
214.0K
$1.0M
1.14%
+167.3K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
207.3K
$1.0M
1.10%
-184.8K
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
169.5K
--
0.90%
-161.5K
2026-06-30
RENAISSANCE TECHNOLOGIES LLC
167.7K
--
0.89%
-49.2K
2026-06-30
MARSHALL WACE, LLP
162.2K
--
0.86%
+130.9K
2026-06-30
P.A.W. CAPITAL CORP
160.0K
--
0.85%
+70.0K
2026-06-30
JANE STREET GROUP, LLC
160.0K
--
0.85%
+132.8K
2026-06-30
MORGAN STANLEY
156.3K
--
0.83%
+79.9K
2026-06-30
Mink Brook Asset Management LLC
141.2K
--
0.75%
--
2026-06-30
D. E. Shaw & Co., Inc.
138.1K
--
0.73%
-4.8K
2026-06-30
Janney Montgomery Scott LLC
136.0K
--
0.72%
--
2026-06-30
GOLDMAN SACHS GROUP INC
105.0K
--
0.56%
-253.4K
2026-06-30
Quantinno Capital Management LP
99.1K
--
0.53%
+50.1K
2026-06-30
VANGUARD FIDUCIARY TRUST CO
98.0K
--
0.52%
-13.1K
2026-06-30
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