BOC — Institutional owners (13F)

146 filers · $293.7M total · As of Sept. 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
MAGNOLIA GROUP, LLC $76,237,411 5,589,253 25.95% Shares
MASSACHUSETTS INSTITUTE OF TECHNOLOGY $33,342,611 2,444,473 11.35% Shares
BlackRock, Inc. $24,414,621 1,789,928 8.31% Shares
Elgethun Capital Management $19,940,957 1,461,947 6.79% Shares
DIMENSIONAL FUND ADVISORS LP $19,471,205 1,427,553 6.63% Shares
VANGUARD GROUP INC $17,737,417 1,433,906 6.04% Shares
VANGUARD CAPITAL MANAGEMENT LLC $13,209,740 968,456 4.50% Shares
PRIVATE MANAGEMENT GROUP INC $12,751,709 934,876 4.34% Shares
GEODE CAPITAL MANAGEMENT, LLC $7,679,576 562,893 2.61% Shares
STATE STREET CORP $7,297,823 535,031 2.48% Shares
Nitor Capital Management LLC $5,673,558 415,950 1.93% Shares
FIRST MANHATTAN CO. LLC. $5,377,475 394,243 1.83% Shares
STEVENS CAPITAL PARTNERS $4,958,498 363,526 1.69% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $3,155,328 231,329 1.07% Shares
GOLDMAN SACHS GROUP INC $2,681,774 196,611 0.91% Shares
TWO SIGMA INVESTMENTS, LP $2,549,166 186,889 0.87% Shares
NORTHERN TRUST CORP $2,453,468 179,873 0.84% Shares
VANGUARD FIDUCIARY TRUST CO $1,984,238 145,472 0.68% Shares
George Kaiser Family Foundation $1,922,312 140,932 0.65% Shares
CITADEL ADVISORS LLC $1,793,046 131,455 0.61% Shares
Brandywine Global Investment Management, LLC $1,543,652 124,790 0.53% Shares
Meixler Investment Management, Ltd. $1,308,008 95,895 0.45% Shares
Ironvine Capital Partners, LLC $1,224,299 89,758 0.42% Shares
Nuveen, LLC $1,115,535 81,784 0.38% Shares
Qube Research & Technologies Ltd $1,050,075 76,985 0.36% Shares
JANE STREET GROUP, LLC $902,872 66,193 0.31% Shares
D. E. Shaw & Co., Inc. $893,652 65,517 0.30% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $848,149 62,181 0.29% Shares
Quantinno Capital Management LP $817,186 59,911 0.28% Shares
Trexquant Investment LP $815,522 59,789 0.28% Shares
Bank of New York Mellon Corp $804,256 58,963 0.27% Shares
TWO SIGMA ADVISERS, LP $771,888 62,400 0.26% Shares
AMERICAN CENTURY COMPANIES INC $758,698 55,623 0.26% Shares
Equitable Holdings, Inc. $754,633 55,325 0.26% Shares
CAPTRUST FINANCIAL ADVISORS $753,583 55,248 0.26% Shares
MILLENNIUM MANAGEMENT LLC $674,007 49,414 0.23% Shares
MORGAN STANLEY $641,858 47,057 0.22% Shares
Alpha Cubed Investments, LLC $635,917 51,408 0.22% Shares
TUDOR INVESTMENT CORP ET AL $586,397 42,991 0.20% Shares
AQR CAPITAL MANAGEMENT LLC $581,106 42,603 0.20% Shares
UBS Group AG $568,010 41,643 0.19% Shares
XTX Topco Ltd $560,222 41,072 0.19% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $536,052 39,300 0.18% Call option
MANGROVE PARTNERS IM, LLC $497,451 36,470 0.17% Shares
BANK OF AMERICA CORP /DE/ $482,024 35,339 0.16% Shares
RHUMBLINE ADVISERS $395,088 28,966 0.13% Shares
ArrowMark Colorado Holdings LLC $380,420 27,890 0.13% Shares
Flagstone Financial Management $337,931 24,775 0.12% Shares
Invesco Ltd. $320,567 23,502 0.11% Shares
CITADEL ADVISORS LLC $313,720 23,000 0.11% Call option
EntryPoint Capital, LLC $312,533 22,913 0.11% Shares
BNP PARIBAS FINANCIAL MARKETS $310,351 22,753 0.11% Shares
ExodusPoint Capital Management, LP $307,350 22,533 0.10% Shares
DEUTSCHE BANK AG\ $293,301 21,503 0.10% Shares
FRANKLIN RESOURCES INC $279,620 20,500 0.10% Shares
FMR LLC $273,742 20,069 0.09% Shares
ALLIANCEBERNSTEIN L.P. $271,794 23,270 0.09% Shares
Susquehanna Portfolio Strategies, LLC $270,849 19,857 0.09% Shares
WELLS FARGO & COMPANY/MN $267,336 19,599 0.09% Shares
Jump Financial, LLC $256,718 18,821 0.09% Shares
Cetera Investment Advisers $253,540 18,588 0.09% Shares
Global Retirement Partners, LLC $234,785 17,213 0.08% Shares
Waterloo Capital, L.P. $229,152 16,800 0.08% Shares
Balyasny Asset Management L.P. $224,187 16,436 0.08% Shares
INSIGNEO ADVISORY SERVICES, LLC $205,146 15,040 0.07% Shares
MERCER GLOBAL ADVISORS INC /ADV $204,095 14,963 0.07% Shares
AlphaQuest LLC $199,949 16,164 0.07% Shares
Russell Investments Group, Ltd. $189,486 13,892 0.06% Shares
CITIGROUP INC $183,758 13,472 0.06% Shares
JANE STREET GROUP, LLC $173,228 12,700 0.06% Call option
RAYMOND JAMES FINANCIAL INC $170,582 12,506 0.06% Shares
RENAISSANCE TECHNOLOGIES LLC $169,136 12,400 0.06% Shares
MetLife Investment Management, LLC $162,384 11,905 0.06% Shares
Creative Planning $146,307 10,726 0.05% Shares
JPMORGAN CHASE & CO $142,012 10,590 0.05% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $141,597 10,381 0.05% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $138,419 10,148 0.05% Shares
BFSG, LLC $119,282 8,745 0.04% Shares
Vanguard Global Advisers, LLC $108,097 7,925 0.04% Shares
SIMPLEX TRADING, LLC $89,410 6,555 0.03% Shares
BARCLAYS PLC $85,906 6,298 0.03% Shares
NEW YORK STATE COMMON RETIREMENT FUND $78,335 5,743 0.03% Shares
Police & Firemen's Retirement System of New Jersey $76,125 5,581 0.03% Shares
PNC Financial Services Group, Inc. $68,309 5,008 0.02% Shares
PITTENGER & ANDERSON INC $57,970 4,250 0.02% Shares
OSAIC HOLDINGS, INC. $54,626 4,005 0.02% Shares
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $52,198 4,469 0.02% Shares
Security National Bank $38,192 2,800 0.01% Shares
ROYAL BANK OF CANADA $38,000 2,761 0.01% Shares
JONES FINANCIAL COMPANIES LLLP $33,097 2,439 0.01% Shares
Ameritas Investment Partners, Inc. $31,072 2,278 0.01% Shares
Tower Research Capital LLC (TRC) $28,685 2,103 0.01% Shares
US BANCORP \DE\ $28,549 2,093 0.01% Shares
Legal & General Group Plc $27,130 1,989 0.01% Shares
VISION FINANCIAL MARKETS LLC $21,340 500 0.01% Shares
Aquatic Capital Management LLC $21,128 1,549 0.01% Shares
NISA INVESTMENT ADVISORS, LLC $20,555 1,507 0.01% Shares
GAMMA Investing LLC $13,040 956 0.00% Shares
Cove Street Capital, LLC $11,249 860 0.00% Shares
Versant Capital Management, Inc $10,965 848 0.00% Shares
Kilter Group LLC $10,531 772 0.00% Shares
EverSource Wealth Advisors, LLC $9,957 730 0.00% Shares
Farther Finance Advisors, LLC $8,116 595 0.00% Shares
Grove Bank & Trust $6,820 500 0.00% Shares
Arax Advisory Partners $5,798 425 0.00% Shares
Sterling Capital Management LLC $5,729 420 0.00% Shares
SBI Securities Co., Ltd. $5,374 394 0.00% Shares
Federation des caisses Desjardins du Quebec $5,027 369 0.00% Shares
FIFTH THIRD BANCORP $4,924 361 0.00% Shares
CWM, LLC $4,228 362 0.00% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $4,133 303 0.00% Shares
MassMutual Private Wealth & Trust, FSB $4,092 300 0.00% Shares
North Star Investment Management Corp. $4,024 295 0.00% Shares
Tidemark, LLC $2,933 215 0.00% Shares
Optiver Holding B.V. $2,892 212 0.00% Shares
LOS ANGELES CAPITAL MANAGEMENT LLC $2,810 206 0.00% Shares
BELLEVUE ASSET MANAGEMENT, LLC $2,441 179 0.00% Shares
Parallel Advisors, LLC $2,346 172 0.00% Shares
Allworth Financial LP $2,060 151 0.00% Shares
Private Wealth Asset Management, LLC $2,046 150 0.00% Shares
JPL Wealth Management, LLC $1,637 120 0.00% Shares
Lindbrook Capital, LLC $1,429 98 0.00% Shares
ASSETMARK, INC $1,405 103 0.00% Shares
SJS Investment Consulting Inc. $1,243 91 0.00% Shares
Compagnie Lombard Odier SCmA $1,023 75 0.00% Shares
Geneos Wealth Management Inc. $1,023 75 0.00% Shares
SIGNATUREFD, LLC $996 73 0.00% Shares
Smartleaf Asset Management LLC $914 68 0.00% Shares
Abound Wealth Management $830 71 0.00% Shares
Essential Partners LLC $750 55 0.00% Shares
Larson Financial Group LLC $737 54 0.00% Shares
ROTHSCHILD INVESTMENT LLC $723 53 0.00% Shares
Blue Trust, Inc. $682 50 0.00% Shares
AdvisorNet Financial, Inc $546 40 0.00% Shares
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $491 36 0.00% Shares
Global Trust Asset Management, LLC $382 28 0.00% Shares
NorthAvenue LLC $341 25 0.00% Shares
Caitong International Asset Management Co., Ltd $259 19 0.00% Shares
HARBOUR INVESTMENTS, INC. $246 18 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $239 17,518 0.00% Shares
Covestor Ltd $171 12,541 0.00% Shares
Clearstead Advisors, LLC $164 12 0.00% Shares
Transamerica Financial Advisors, LLC $163 12 0.00% Shares
True Wealth Design, LLC $123 9 0.00% Shares
HUNTINGTON NATIONAL BANK $14 1 0.00% Shares
State of Alaska, Department of Revenue $13 972 0.00% Shares