OPRX — Institutional owners (13F)
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
| Institution | Value | Shares | % of tracked 13F | Type |
|---|---|---|---|---|
| VANGUARD GROUP INC | $13,938,798 | 1,136,933 | 18.38% | Shares |
| Whetstone Capital Advisors, LLC | $8,627,493 | 1,508,303 | 11.38% | Shares |
| ROYCE & ASSOCIATES LP | $6,231,357 | 1,089,398 | 8.22% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $4,001,735 | 699,604 | 5.28% | Shares |
| KENNEDY CAPITAL MANAGEMENT LLC | $3,684,538 | 644,150 | 4.86% | Shares |
| RICE HALL JAMES & ASSOCIATES, LLC | $3,625,576 | 633,842 | 4.78% | Shares |
| BLAIR WILLIAM & CO/IL | $3,477,331 | 607,925 | 4.59% | Shares |
| AQR CAPITAL MANAGEMENT LLC | $3,340,229 | 583,956 | 4.40% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $2,731,808 | 477,687 | 3.60% | Shares |
| BlackRock, Inc. | $2,547,585 | 445,382 | 3.36% | Shares |
| Parkman Healthcare Partners LLC | $2,003,985 | 350,347 | 2.64% | Shares |
| AWM Investment Company, Inc. | $1,375,208 | 240,421 | 1.81% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $1,186,517 | 207,345 | 1.56% | Shares |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $969,757 | 169,538 | 1.28% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $959,244 | 167,700 | 1.27% | Shares |
| MARSHALL WACE, LLP | $927,704 | 162,186 | 1.22% | Shares |
| CITADEL ADVISORS LLC | $903,715 | 157,992 | 1.19% | Shares |
| MORGAN STANLEY | $894,116 | 156,314 | 1.18% | Shares |
| Mink Brook Asset Management LLC | $807,864 | 141,235 | 1.07% | Shares |
| D. E. Shaw & Co., Inc. | $789,840 | 138,084 | 1.04% | Shares |
| JANE STREET GROUP, LLC | $698,332 | 122,086 | 0.92% | Shares |
| GOLDMAN SACHS GROUP INC | $600,812 | 105,037 | 0.79% | Shares |
| Quantinno Capital Management LP | $566,989 | 99,124 | 0.75% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $560,554 | 97,999 | 0.74% | Shares |
| Trexquant Investment LP | $512,890 | 89,666 | 0.68% | Shares |
| CREDIT AGRICOLE S A | $510,224 | 89,200 | 0.67% | Shares |
| STATE STREET CORP | $461,043 | 80,602 | 0.61% | Shares |
| MILLENNIUM MANAGEMENT LLC | $450,685 | 78,791 | 0.59% | Shares |
| AVENIR CORP | $422,479 | 73,860 | 0.56% | Shares |
| Man Group plc | $413,825 | 72,347 | 0.55% | Shares |
| WOLVERINE TRADING, LLC | $406,098 | 19,800 | 0.54% | Call option |
| PRINCIPAL FINANCIAL GROUP INC | $389,755 | 68,139 | 0.51% | Shares |
| Qube Research & Technologies Ltd | $384,773 | 67,268 | 0.51% | Shares |
| Bank of New York Mellon Corp | $370,124 | 64,707 | 0.49% | Shares |
| HSBC HOLDINGS PLC | $326,577 | 58,949 | 0.43% | Shares |
| Point72 Asset Management, L.P. | $318,141 | 55,619 | 0.42% | Shares |
| UBS Group AG | $317,597 | 55,524 | 0.42% | Shares |
| Jain Global LLC | $295,621 | 51,682 | 0.39% | Shares |
| Campbell & CO Investment Adviser LLC | $292,464 | 51,130 | 0.39% | Shares |
| XTX Topco Ltd | $265,963 | 46,497 | 0.35% | Shares |
| Squarepoint Ops LLC | $257,766 | 45,064 | 0.34% | Shares |
| SEI INVESTMENTS CO | $236,945 | 41,424 | 0.31% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $223,097 | 39,003 | 0.29% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $218,504 | 38,200 | 0.29% | Put option |
| JANE STREET GROUP, LLC | $216,788 | 37,900 | 0.29% | Call option |
| NORTHERN TRUST CORP | $211,640 | 37,000 | 0.28% | Shares |
| CITADEL ADVISORS LLC | $184,184 | 32,200 | 0.24% | Put option |
| Samjo Management, LLC | $183,040 | 32,000 | 0.24% | Shares |
| BANK OF AMERICA CORP /DE/ | $151,866 | 26,550 | 0.20% | Shares |
| Quadrature Capital Ltd | $146,678 | 25,643 | 0.19% | Shares |
| FRANKLIN RESOURCES INC | $143,887 | 25,155 | 0.19% | Shares |
| 9823 Capital, L.P. | $140,661 | 24,591 | 0.19% | Shares |
| CITADEL ADVISORS LLC | $136,136 | 23,800 | 0.18% | Call option |
| FMR LLC | $133,725 | 23,379 | 0.18% | Shares |
| Hillsdale Investment Management Inc. | $116,116 | 20,300 | 0.15% | Shares |
| CANADA PENSION PLAN INVESTMENT BOARD | $110,396 | 19,300 | 0.15% | Shares |
| Engineers Gate Manager LP | $100,375 | 17,548 | 0.13% | Shares |
| Centiva Capital, LP | $97,257 | 17,003 | 0.13% | Shares |
| McAdam, LLC | $94,712 | 16,558 | 0.12% | Shares |
| IEQ CAPITAL, LLC | $87,173 | 15,240 | 0.11% | Shares |
| BARCLAYS PLC | $85,715 | 14,985 | 0.11% | Shares |
| PERKINS CAPITAL MANAGEMENT INC | $84,702 | 14,808 | 0.11% | Shares |
| Schonfeld Strategic Advisors LLC | $81,377 | 14,227 | 0.11% | Shares |
| MERCER GLOBAL ADVISORS INC /ADV | $79,468 | 13,893 | 0.10% | Shares |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $78,862 | 12,303 | 0.10% | Shares |
| Corient Private Wealth LP | $76,569 | 13,386 | 0.10% | Shares |
| PharVision Advisers, LLC | $73,811 | 12,904 | 0.10% | Shares |
| WELLS FARGO & COMPANY/MN | $66,701 | 11,661 | 0.09% | Shares |
| STATE OF WISCONSIN INVESTMENT BOARD | $65,174 | 11,394 | 0.09% | Shares |
| Mariner, LLC | $58,539 | 10,239 | 0.08% | Shares |
| RHUMBLINE ADVISERS | $45,845 | 8,015 | 0.06% | Shares |
| CITIGROUP INC | $44,851 | 7,841 | 0.06% | Shares |
| CWM, LLC | $41,209 | 6,562 | 0.05% | Shares |
| Vanguard Global Advisers, LLC | $39,451 | 6,897 | 0.05% | Shares |
| Arax Advisory Partners | $12,790 | 2,236 | 0.02% | Shares |
| PNC Financial Services Group, Inc. | $11,617 | 2,031 | 0.02% | Shares |
| Avalon Trust Co | $11,440 | 2,000 | 0.02% | Shares |
| HUNTINGTON NATIONAL BANK | $10,170 | 1,778 | 0.01% | Shares |
| Versant Capital Management, Inc | $8,859 | 1,061 | 0.01% | Shares |
| BARD ASSOCIATES INC | $8,466 | 1,480 | 0.01% | Shares |
| OSAIC HOLDINGS, INC. | $6,652 | 1,163 | 0.01% | Shares |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $5,903 | 940 | 0.01% | Shares |
| Steward Partners Investment Advisory, LLC | $5,720 | 1,000 | 0.01% | Shares |
| GAMMA Investing LLC | $5,205 | 910 | 0.01% | Shares |
| Russell Investments Group, Ltd. | $5,062 | 885 | 0.01% | Shares |
| AdvisorNet Financial, Inc | $3,432 | 600 | 0.00% | Shares |
| IFP Advisors, Inc | $3,186 | 557 | 0.00% | Shares |
| EverSource Wealth Advisors, LLC | $2,511 | 439 | 0.00% | Shares |
| Compagnie Lombard Odier SCmA | $2,345 | 410 | 0.00% | Shares |
| Allworth Financial LP | $2,226 | 389 | 0.00% | Shares |
| Global Retirement Partners, LLC | $2,128 | 372 | 0.00% | Shares |
| SBI Securities Co., Ltd. | $2,076 | 363 | 0.00% | Shares |
| NISA INVESTMENT ADVISORS, LLC | $1,733 | 303 | 0.00% | Shares |
| Bogart Wealth, LLC | $1,630 | 285 | 0.00% | Shares |
| Bullseye Asset Management LLC | $1,478 | 258,311 | 0.00% | Shares |
| ROTHSCHILD INVESTMENT LLC | $1,459 | 255 | 0.00% | Shares |
| Farther Finance Advisors, LLC | $1,155 | 203 | 0.00% | Shares |
| JPMORGAN CHASE & CO | $1,145 | 211 | 0.00% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $1,144 | 200 | 0.00% | Shares |
| ROYAL BANK OF CANADA | $1,000 | 273 | 0.00% | Shares |
| Leonteq Securities AG | $795 | 139 | 0.00% | Shares |
| Janney Montgomery Scott LLC | $778 | 135,969 | 0.00% | Shares |
| Tower Research Capital LLC (TRC) | $721 | 126 | 0.00% | Shares |
| SIMPLEX TRADING, LLC | $720 | 126 | 0.00% | Shares |
| HighMark Wealth Management LLC | $572 | 100 | 0.00% | Shares |
| Wealth Enhancement Trust Services, Inc. | $337 | 59 | 0.00% | Shares |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $286 | 50 | 0.00% | Shares |
| SJS Investment Consulting Inc. | $258 | 45 | 0.00% | Shares |
| True Wealth Design, LLC | $224 | 39 | 0.00% | Shares |
| HRT FINANCIAL LP | $204 | 35,696 | 0.00% | Shares |
| ACADIAN ASSET MANAGEMENT LLC | $73 | 12,853 | 0.00% | Shares |
| State of Alaska, Department of Revenue | $57 | 10,067 | 0.00% | Shares |
| Essential Partners LLC | $57 | 10 | 0.00% | Shares |
| JPL Wealth Management, LLC | $29 | 5 | 0.00% | Shares |
| Clearstead Advisors, LLC | $23 | 4 | 0.00% | Shares |
| Optiver Holding B.V. | $23 | 4 | 0.00% | Shares |
| Pinnacle Wealth Planning Services, Inc. | $6 | 1 | 0.00% | Shares |