MRX — Institutional owners (13F)

231 filers · $3.0B total · As of June 30, 2026

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
FMR LLC $327,209,161 5,368,485 10.90% Shares
BlackRock, Inc. $280,013,375 4,594,149 9.33% Shares
Capital International Investors $198,962,986 3,264,364 6.63% Shares
ALLIANCEBERNSTEIN L.P. $115,927,437 2,600,436 3.86% Shares
LOOMIS SAYLES & CO L P $99,147,471 1,626,702 3.30% Shares
SAMLYN CAPITAL, LLC $90,404,088 1,483,250 3.01% Shares
Invesco Ltd. $85,607,444 1,404,552 2.85% Shares
Ophir Asset Management Pty Ltd $84,812,595 1,391,511 2.83% Shares
TWO SIGMA INVESTMENTS, LP $81,394,824 1,335,436 2.71% Shares
VICTORY CAPITAL MANAGEMENT INC $76,475,306 1,254,722 2.55% Shares
Granahan Investment Management, LLC $76,448,549 1,254,283 2.55% Shares
MORGAN STANLEY $71,294,566 1,169,722 2.38% Shares
ROYCE & ASSOCIATES LP $67,678,044 1,111,339 2.26% Shares
STATE STREET CORP $62,579,254 1,026,731 2.09% Shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $61,510,679 1,009,199 2.05% Shares
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $61,491,277 1,043,286 2.05% Shares
AMERIPRISE FINANCIAL INC $55,108,675 904,162 1.84% Shares
GEODE CAPITAL MANAGEMENT, LLC $52,884,092 897,253 1.76% Shares
WELLINGTON MANAGEMENT GROUP LLP $47,237,652 775,023 1.57% Shares
WESTFIELD CAPITAL MANAGEMENT CO LP $41,974,132 688,665 1.40% Shares
JENNISON ASSOCIATES LLC $36,837,754 604,393 1.23% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $34,735,100 569,895 1.16% Shares
GOLDMAN SACHS GROUP INC $33,629,345 551,753 1.12% Shares
FRANKLIN RESOURCES INC $32,798,901 538,128 1.09% Shares
Praetorian PR LLC $30,475,000 500,000 1.02% Shares
NEW YORK STATE COMMON RETIREMENT FUND $28,616,635 469,510 0.95% Shares
FEDERATED HERMES, INC. $28,337,789 464,935 0.94% Shares
Qube Research & Technologies Ltd $27,392,941 449,433 0.91% Shares
NORGES BANK $26,196,310 429,800 0.87% Shares
TWO SIGMA ADVISERS, LP $26,069,456 679,600 0.87% Shares
Nuveen, LLC $25,545,309 419,120 0.85% Shares
ALGERT GLOBAL LLC $25,092,932 411,697 0.84% Shares
Walleye Capital LLC $24,868,575 408,016 0.83% Shares
TUDOR INVESTMENT CORP ET AL $22,728,865 372,910 0.76% Shares
Bank of New York Mellon Corp $22,382,375 367,225 0.75% Shares
NORTHERN TRUST CORP $21,622,865 354,764 0.72% Shares
Swedbank AB $21,603,118 354,440 0.72% Shares
Russell Investments Group, Ltd. $21,153,811 347,067 0.70% Shares
GLENMEDE TRUST CO NA $18,011,760 295,517 0.60% Shares
BANK OF AMERICA CORP /DE/ $17,753,820 291,285 0.59% Shares
MANUFACTURERS LIFE INSURANCE COMPANY, THE $17,616,561 289,033 0.59% Shares
THORNBURG INVESTMENT MANAGEMENT INC $16,762,896 275,027 0.56% Shares
INTRINSIC EDGE CAPITAL MANAGEMENT LLC $16,625,697 272,776 0.55% Shares
MML INVESTORS SERVICES, LLC $16,002,459 262,551 0.53% Shares
VANGUARD GROUP INC $15,342,313 399,956 0.51% Shares
Alyeska Investment Group, L.P. $14,914,160 244,695 0.50% Shares
BNP PARIBAS FINANCIAL MARKETS $14,693,277 241,071 0.49% Shares
JPMORGAN CHASE & CO $14,275,798 242,209 0.48% Shares
Hudson Bay Capital Management LP $13,941,825 228,742 0.46% Shares
Creative Planning $13,426,578 220,288 0.45% Shares
RAYMOND JAMES FINANCIAL INC $12,817,304 210,293 0.43% Shares
Glenmede Investment Management, LP $11,623,743 345,739 0.39% Shares
Cubist Systematic Strategies, LLC $11,517,346 342,574 0.38% Shares
RENAISSANCE TECHNOLOGIES LLC $10,976,303 180,087 0.37% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $10,474,014 171,846 0.35% Shares
Marex Group Ltd $9,911,506 162,617 0.33% Shares
Legal & General Group Plc $9,642,717 158,207 0.32% Shares
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $9,481,077 155,555 0.32% Shares
PRINCIPAL FINANCIAL GROUP INC $9,422,687 154,597 0.31% Shares
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $8,228,555 135,005 0.27% Shares
STATE OF WISCONSIN INVESTMENT BOARD $7,973,967 130,828 0.27% Shares
UBS Group AG $7,830,673 128,477 0.26% Shares
WASATCH ADVISORS LP $7,628,039 171,109 0.25% Shares
Moody Aldrich Partners LLC $6,688,226 109,733 0.22% Shares
Calamos Advisors LLC $5,872,898 96,356 0.20% Shares
MOODY NATIONAL BANK TRUST DIVISION $5,570,099 91,388 0.19% Shares
CITIGROUP INC $5,491,838 90,104 0.18% Shares
ENVESTNET ASSET MANAGEMENT INC $5,307,965 87,087 0.18% Shares
Boston Partners $4,892,940 80,278 0.16% Shares
Engle Capital Management, L.P. $4,817,305 79,037 0.16% Shares
RHUMBLINE ADVISERS $4,753,785 77,995 0.16% Shares
WELLS FARGO & COMPANY/MN $4,700,952 77,128 0.16% Shares
RENAISSANCE GROUP LLC $4,612,391 75,675 0.15% Shares
MARSHALL WACE, LLP $4,551,563 74,677 0.15% Shares
Balyasny Asset Management L.P. $4,194,274 68,815 0.14% Shares
EPACRIA CAPITAL PARTNERS, LLC $3,986,130 65,400 0.13% Shares
DEUTSCHE BANK AG\ $3,955,046 64,890 0.13% Shares
Mariner, LLC $3,792,161 62,216 0.13% Shares
PRUDENTIAL FINANCIAL INC $3,743,549 61,420 0.12% Shares
Squarepoint Ops LLC $3,455,134 56,688 0.12% Shares
Trexquant Investment LP $3,369,682 55,286 0.11% Shares
Quantinno Capital Management LP $3,267,103 53,603 0.11% Shares
VANGUARD FIDUCIARY TRUST CO $3,065,297 50,292 0.10% Shares
Uniplan Investment Counsel, Inc. $2,767,910 45,412 0.09% Shares
AQR CAPITAL MANAGEMENT LLC $2,458,060 40,329 0.08% Shares
MetLife Investment Management, LLC $2,214,740 36,337 0.07% Shares
WOLVERINE TRADING, LLC $2,178,351 63,900 0.07% Call option
CITADEL ADVISORS LLC $2,054,015 33,700 0.07% Put option
Orion Porfolio Solutions, LLC $1,934,794 31,744 0.06% Shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC $1,863,059 30,567 0.06% Shares
JANUS HENDERSON GROUP PLC $1,758,280 39,441 0.06% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $1,747,619 28,673 0.06% Shares
Sidoxia Capital Management, LLC $1,655,097 27,155 0.06% Shares
Kodai Capital Management LP $1,642,415 46,501 0.05% Shares
Y-Intercept (Hong Kong) Ltd $1,640,104 26,909 0.05% Shares
Massar Capital Management, LP $1,584,151 25,991 0.05% Shares
Jain Global LLC $1,541,913 25,298 0.05% Shares
Militia Capital Partners, LP $1,534,400 40,000 0.05% Shares
JANE STREET GROUP, LLC $1,298,235 21,300 0.04% Put option
ROYAL BANK OF CANADA $1,298,000 21,303 0.04% Shares
JANE STREET GROUP, LLC $1,261,665 20,700 0.04% Call option
Militia Capital Management LLC $1,219,000 20,000 0.04% Shares
CITADEL ADVISORS LLC $1,158,050 19,000 0.04% Call option
Police & Firemen's Retirement System of New Jersey $1,119,347 18,365 0.04% Shares
Aquatic Capital Management LLC $1,076,499 17,662 0.04% Shares
Genesee Capital Advisors, LLC $1,074,122 17,623 0.04% Shares
TOTH FINANCIAL ADVISORY CORP $1,036,150 17,000 0.03% Shares
CIBC WORLD MARKET INC. $906,997 14,881 0.03% Shares
Skopos Labs, Inc. $836,990 18,775 0.03% Shares
FORMULA GROWTH LTD $835,015 13,700 0.03% Shares
INTECH INVESTMENT MANAGEMENT LLC $814,962 13,371 0.03% Shares
CORSAIR CAPITAL MANAGEMENT, L.P. $796,007 13,060 0.03% Shares
NATIONAL BANK OF CANADA /FI/ $784,047 12,868 0.03% Shares
VOYA INVESTMENT MANAGEMENT LLC $721,221 11,833 0.02% Shares
CIM, LLC $645,109 10,584 0.02% Shares
Sanctuary Advisors, LLC $632,850 10,383 0.02% Shares
Dauntless Investment Group, LLC $629,248 10,324 0.02% Shares
CHOREO, LLC $623,640 10,232 0.02% Shares
LPL Financial LLC $608,220 9,979 0.02% Shares
Savant Capital, LLC $594,531 10,841 0.02% Shares
BARCLAYS PLC $584,876 9,596 0.02% Shares
Marble Bar Asset Management LLP $548,550 9,000 0.02% Shares
MACKENZIE FINANCIAL CORP $546,315 9,269 0.02% Shares
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $546,234 8,962 0.02% Shares
Neo Ivy Capital Management $517,587 8,492 0.02% Shares
Vanguard Personalized Indexing Management, LLC $503,508 8,261 0.02% Shares
ProShare Advisors LLC $497,048 8,155 0.02% Shares
NORDEN GROUP LLC $427,443 7,013 0.01% Shares
MERCER GLOBAL ADVISORS INC /ADV $385,208 6,320 0.01% Shares
XPONANCE LLC $369,418 6,061 0.01% Shares
Inspire Advisors, LLC $365,334 6,025 0.01% Shares
Yorktown Management & Research Co Inc $359,605 5,900 0.01% Shares
TRUIST FINANCIAL CORP $353,998 5,808 0.01% Shares
WESTWOOD HOLDINGS GROUP INC $346,988 5,693 0.01% Shares
Ameritas Investment Partners, Inc. $344,428 5,651 0.01% Shares
Quantbot Technologies LP $330,715 5,426 0.01% Shares
Larson Financial Group LLC $329,685 5,409 0.01% Shares
Merit Financial Group, LLC $325,892 5,347 0.01% Shares
Bayforest Capital Ltd $320,170 5,253 0.01% Shares
US BANCORP \DE\ $319,622 5,244 0.01% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $319,500 5,242 0.01% Shares
Tower Research Capital LLC (TRC) $318,220 5,221 0.01% Shares
COMMONWEALTH EQUITY SERVICES, LLC $316,620 5,195 0.01% Shares
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM $312,125 5,121 0.01% Shares
Abel Hall, LLC $309,992 5,086 0.01% Shares
KEYBANK NATIONAL ASSOCIATION/OH $305,664 5,015 0.01% Shares
Keebeck Wealth Management $304,750 5,000 0.01% Shares
SIMPLEX TRADING, LLC $304,079 4,989 0.01% Shares
Freestone Grove Partners LP $303,653 4,982 0.01% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $300,079 4,923,341 0.01% Shares
KG Capital Management $299,204 4,909 0.01% Shares
Ponta Wealth Partners, LLC $290,244 4,762 0.01% Shares
DRIVE WEALTH MANAGEMENT, LLC $278,073 4,562 0.01% Shares
CenterBook Partners LP $271,593 4,456 0.01% Shares
WOLVERINE TRADING, LLC $262,493 7,700 0.01% Put option
ZACKS INVESTMENT MANAGEMENT $253,501 4,159 0.01% Shares
Numerai GP LLC $250,992 4,118 0.01% Shares
BankChampaign, National Association $248,798 4,082 0.01% Shares
BlueCrest Capital Management Ltd $243,800 4,000 0.01% Shares
Vann Equity Management LLC $234,062 3,840 0.01% Shares
Hilltop Holdings Inc. $230,086 3,775 0.01% Shares
Allen Capital Group, LLC $229,233 3,761 0.01% Shares
Fort Sheridan Advisors LLC $221,310 3,631 0.01% Shares
Ausdal Financial Partners, Inc. $219,551 3,602 0.01% Shares
Orion Portfolio Solutions, LLC $218,721 6,193 0.01% Shares
CIBC Bancorp USA Inc. $210,948 3,461 0.01% Shares
NATIONS FINANCIAL GROUP INC, /IA/ /ADV $206,803 3,393 0.01% Shares
CWM, LLC $162,405 3,643 0.01% Shares
Farther Finance Advisors, LLC $159,810 2,682 0.01% Shares
Steward Partners Investment Advisory, LLC $135,736 2,227 0.00% Shares
FIFTH THIRD BANCORP $73,689 1,209 0.00% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $52,295 858 0.00% Shares
Hughes Financial Services, LLC $48,821 801 0.00% Shares
Rockefeller Capital Management L.P. $48,706 799 0.00% Shares
JONES FINANCIAL COMPANIES LLLP $45,989 716 0.00% Shares
NISA INVESTMENT ADVISORS, LLC $38,703 635 0.00% Shares
Silver Grove Financial Group, Inc. $35,849 588 0.00% Shares
Smartleaf Asset Management LLC $35,233 597 0.00% Shares
Stone House Investment Management, LLC $31,633 519 0.00% Shares
Sterling Capital Management LLC $29,683 487 0.00% Shares
Institute for Wealth Management, LLC. $27,428 450 0.00% Shares
Wilmington Savings Fund Society, FSB $26,879 441 0.00% Shares
GROUP ONE TRADING LLC $26,757 439 0.00% Shares
Kemnay Advisory Services Inc. $26,330 432 0.00% Shares
GAMMA Investing LLC $25,233 414 0.00% Shares
Arax Advisory Partners $24,441 401 0.00% Shares
T. Rowe Price Investment Management, Inc. $23,495 385,479 0.00% Shares
LORD, ABBETT & CO. LLC $21,668 355,507 0.00% Shares
Park Place Capital Corp $20,174 331 0.00% Shares
SIGNATUREFD, LLC $18,529 304 0.00% Shares
HARBOUR INVESTMENTS, INC. $15,946 262 0.00% Shares
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $14,979 336 0.00% Shares
OSAIC HOLDINGS, INC. $14,263 234 0.00% Shares
EverSource Wealth Advisors, LLC $14,018 230 0.00% Shares
HRT FINANCIAL LP $13,866 227,503 0.00% Shares
Parallel Advisors, LLC $12,921 212 0.00% Shares
Ameritas Advisory Services, LLC $12,913 212 0.00% Shares
Allworth Financial LP $11,703 192 0.00% Shares
Caitong International Asset Management Co., Ltd $9,325 153 0.00% Shares
MassMutual Private Wealth & Trust, FSB $4,998 82 0.00% Shares
Clearstead Advisors, LLC $4,694 77 0.00% Shares
WealthCollab, LLC $4,572 75 0.00% Shares
Thrivent Financial for Lutherans $4,548 74,611 0.00% Shares
BROWN, LISLE/CUMMINGS, INC. $4,327 71 0.00% Shares
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $4,084 67 0.00% Shares
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY $3,684 60,445 0.00% Shares
ASSETMARK, INC $2,804 46 0.00% Shares
ROTHSCHILD INVESTMENT LLC $2,682 44 0.00% Shares
Global Retirement Partners, LLC $2,499 41 0.00% Shares
PNC Financial Services Group, Inc. $2,291 38 0.00% Shares
TD PRIVATE CLIENT WEALTH LLC $1,829 30 0.00% Shares
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ $1,768 29 0.00% Shares
Pinnacle Wealth Planning Services, Inc. $1,707 28 0.00% Shares
Physician Wealth Advisors, Inc. $1,463 24 0.00% Shares
Bell Investment Advisors, Inc $1,280 21 0.00% Shares
GSA CAPITAL PARTNERS LLP $1,160 19,030 0.00% Shares
UMB Bank, n.a. $1,097 18 0.00% Shares
State of Alaska, Department of Revenue $1,056 17,330 0.00% Shares
Essential Partners LLC $1,036 17 0.00% Shares
IFP Advisors, Inc $1,036 17 0.00% Shares
SG Americas Securities, LLC $954 15,655 0.00% Shares
CIBC Private Wealth Group LLC $773 23 0.00% Shares
Bogart Wealth, LLC $731 12 0.00% Shares
CoreCap Advisors, LLC $610 10 0.00% Shares
Janney Montgomery Scott LLC $436 7,149 0.00% Shares
Janney Capital Management LLC $386 10,056 0.00% Shares
Keating Financial Advisory Services, Inc. $61 1 0.00% Shares
HARBOR CAPITAL ADVISORS, INC. $47 776 0.00% Shares
HUNTINGTON NATIONAL BANK $44 1 0.00% Shares
BESSEMER GROUP INC $39 635 0.00% Shares
Covestor Ltd $1 15 0.00% Shares