OABI — Institutional owners (13F)

143 filers · $155.4M 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
Whitefort Capital Management, LP $25,211,699 10,248,658 16.22% Shares
BlackRock, Inc. $21,887,827 8,897,490 14.08% Shares
NOMURA HOLDINGS INC $12,369,274 5,028,160 7.96% Shares
VANGUARD GROUP INC $10,406,615 5,625,197 6.69% Shares
CADIAN CAPITAL MANAGEMENT, LP $10,361,080 4,211,821 6.67% Shares
VANGUARD CAPITAL MANAGEMENT LLC $9,476,796 3,852,356 6.10% Shares
GEODE CAPITAL MANAGEMENT, LLC $7,096,381 2,883,978 4.57% Shares
RICE HALL JAMES & ASSOCIATES, LLC $6,421,668 2,610,434 4.13% Shares
PRIVATE MANAGEMENT GROUP INC $5,768,134 2,344,770 3.71% Shares
STATE STREET CORP $5,248,531 2,133,549 3.38% Shares
DIMENSIONAL FUND ADVISORS LP $3,105,584 1,262,099 2.00% Shares
TOWERVIEW LLC $2,902,800 1,180,000 1.87% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $2,411,823 980,416 1.55% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $2,378,517 966,877 1.53% Shares
NORTHERN TRUST CORP $2,332,803 948,294 1.50% Shares
ADAR1 Capital Management, LLC $2,330,634 947,412 1.50% Shares
ISTHMUS PARTNERS, LLC $1,976,433 803,428 1.27% Shares
VANGUARD FIDUCIARY TRUST CO $1,865,812 758,460 1.20% Shares
TWO SIGMA INVESTMENTS, LP $1,617,283 657,432 1.04% Shares
Nuveen, LLC $1,581,315 642,811 1.02% Shares
RENAISSANCE TECHNOLOGIES LLC $1,476,861 600,350 0.95% Shares
D. E. Shaw & Co., Inc. $1,376,134 559,404 0.89% Shares
MACKENZIE FINANCIAL CORP $1,203,270 489,134 0.77% Shares
GOLDMAN SACHS GROUP INC $946,049 384,573 0.61% Shares
MORGAN STANLEY $913,905 371,506 0.59% Shares
MILLENNIUM MANAGEMENT LLC $864,306 474,159 0.56% Shares
Kent Lake PR LLC $800,000 500,000 0.51% Shares
Bank of New York Mellon Corp $783,279 318,406 0.50% Shares
TLS Advisors LLC $542,885 220,685 0.35% Shares
FMR LLC $491,552 199,818 0.32% Shares
BRIDGEWAY CAPITAL MANAGEMENT, LLC $489,294 198,900 0.31% Shares
Arbiter Partners Capital Management LLC $473,759 192,585 0.30% Shares
RHUMBLINE ADVISERS $423,003 171,957 0.27% Shares
Palumbo Wealth Management LLC $398,459 161,975 0.26% Shares
Invesco Ltd. $396,986 161,376 0.26% Shares
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $392,668 159,621 0.25% Shares
AQR CAPITAL MANAGEMENT LLC $387,981 157,716 0.25% Shares
BANK OF AMERICA CORP /DE/ $367,753 149,493 0.24% Shares
TWO SIGMA ADVISERS, LP $365,431 197,530 0.24% Shares
Walleye Capital LLC $355,290 144,427 0.23% Shares
Cornerstone Capital, Inc. $350,024 142,286 0.23% Shares
JPMORGAN CHASE & CO $275,115 107,049 0.18% Shares
DEUTSCHE BANK AG\ $248,071 100,842 0.16% Shares
WELLS FARGO & COMPANY/MN $246,563 100,229 0.16% Shares
ALLIANCEBERNSTEIN L.P. $244,907 155,992 0.16% Shares
Northeast Financial Consultants Inc $193,134 110,996 0.12% Shares
AMERICAN CENTURY COMPANIES INC $184,704 75,083 0.12% Shares
XTX Topco Ltd $181,811 73,907 0.12% Shares
Connor, Clark & Lunn Investment Management Ltd. $177,999 72,357 0.11% Shares
MetLife Investment Management, LLC $161,730 65,744 0.10% Shares
Russell Investments Group, Ltd. $156,906 63,783 0.10% Shares
CITADEL ADVISORS LLC $143,147 58,190 0.09% Shares
CITIGROUP INC $134,481 54,667 0.09% Shares
SEI INVESTMENTS CO $131,344 53,390 0.08% Shares
Shay Capital LLC $126,690 51,500 0.08% Shares
Vanguard Global Advisers, LLC $126,434 51,396 0.08% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $124,584 50,644 0.08% Shares
BLAIR WILLIAM & CO/IL $106,749 43,394 0.07% Shares
Police & Firemen's Retirement System of New Jersey $103,854 42,217 0.07% Shares
PRUDENTIAL FINANCIAL INC $95,864 38,969 0.06% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $87,800 35,691 0.06% Shares
Squarepoint Ops LLC $86,978 35,357 0.06% Shares
LPL Financial LLC $85,660 34,821 0.06% Shares
CITADEL ADVISORS LLC $82,902 33,700 0.05% Call option
WOODSTOCK CORP $72,265 29,376 0.05% Shares
INTECH INVESTMENT MANAGEMENT LLC $68,447 27,824 0.04% Shares
BARCLAYS PLC $65,114 26,469 0.04% Shares
MANUFACTURERS LIFE INSURANCE COMPANY, THE $60,971 24,785 0.04% Shares
VOYA INVESTMENT MANAGEMENT LLC $58,088 23,613 0.04% Shares
China Universal Asset Management Co., Ltd. $56,757 23,072 0.04% Shares
HighTower Advisors, LLC $53,158 21,609 0.03% Shares
BFSG, LLC $51,205 20,815 0.03% Shares
Qube Research & Technologies Ltd $49,658 20,186 0.03% Shares
BNP PARIBAS FINANCIAL MARKETS $48,762 19,822 0.03% Shares
Quadrature Capital Ltd $47,950 19,492 0.03% Shares
ProShare Advisors LLC $47,122 19,155 0.03% Shares
Thrive Wealth Management, LLC $44,393 18,046 0.03% Shares
UBS Group AG $43,908 17,849 0.03% Shares
NJ State Employees Deferred Compensation Plan $39,200 24,500 0.03% Shares
TWO SIGMA SECURITIES, LLC $38,686 15,726 0.02% Shares
OSAIC HOLDINGS, INC. $38,028 15,459 0.02% Shares
CANADA PENSION PLAN INVESTMENT BOARD $37,146 15,100 0.02% Shares
VICTORY CAPITAL MANAGEMENT INC $33,577 13,649 0.02% Shares
JANE STREET GROUP, LLC $32,472 13,200 0.02% Call option
MERCER GLOBAL ADVISORS INC /ADV $30,399 12,357 0.02% Shares
CHOREO, LLC $30,091 12,232 0.02% Shares
NEW YORK STATE COMMON RETIREMENT FUND $29,043 11,806 0.02% Shares
Legal & General Group Plc $27,759 11,284 0.02% Shares
Vanguard Personalized Indexing Management, LLC $26,551 10,793 0.02% Shares
XPONANCE LLC $25,761 10,472 0.02% Shares
Ameritas Investment Partners, Inc. $23,744 9,652 0.02% Shares
Tower Research Capital LLC (TRC) $19,788 8,044 0.01% Shares
SUMMIT SECURITIES GROUP LLC $19,390 7,882 0.01% Shares
Steigerwald, Gordon & Koch Inc. $18,876 7,673 0.01% Shares
Cubist Systematic Strategies, LLC $18,095 11,310 0.01% Shares
Court Place Advisors, LLC $16,853 10,533 0.01% Shares
Mirae Asset Global Investments Co., Ltd. $15,951 6,484 0.01% Shares
ROYAL BANK OF CANADA $13,000 5,219 0.01% Shares
CWM, LLC $11,930 7,599 0.01% Shares
GF FUND MANAGEMENT CO. LTD. $7,314 2,973 0.00% Shares
Allworth Financial LP $6,817 2,771 0.00% Shares
Point72 Asia (Singapore) Pte. Ltd. $6,697 4,185 0.00% Shares
Jackson, Grant Investment Advisers, Inc. $6,027 2,450 0.00% Shares
Sterling Capital Management LLC $5,454 2,217 0.00% Shares
Redwood Park Advisors LLC $5,373 2,184 0.00% Shares
SBI Securities Co., Ltd. $5,065 2,059 0.00% Shares
Parallel Advisors, LLC $4,561 1,854 0.00% Shares
Arax Advisory Partners $3,939 1,601 0.00% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $3,727 1,515 0.00% Shares
Larson Financial Group LLC $3,552 1,444 0.00% Shares
Cheviot Value Management, LLC $2,411 980 0.00% Shares
Optiver Holding B.V. $2,086 848 0.00% Shares
North Star Investment Management Corp. $1,353 550 0.00% Shares
EverSource Wealth Advisors, LLC $1,281 521 0.00% Shares
NISA INVESTMENT ADVISORS, LLC $1,279 520 0.00% Shares
Dynamic Wealth Strategies, LLC $1,011 411 0.00% Shares
SIGNATUREFD, LLC $888 361 0.00% Shares
Parkside Financial Bank & Trust $854 347 0.00% Shares
Comprehensive Financial Planning, Inc./PA $795 323 0.00% Shares
Quarry LP $780 317 0.00% Shares
C M BIDWELL & ASSOCIATES LTD $573 233 0.00% Shares
Farther Finance Advisors, LLC $479 191 0.00% Shares
CIBC Private Wealth Group LLC $470 294 0.00% Shares
IFG Advisory, LLC $468 190 0.00% Shares
CENTRAL TRUST Co $421 171 0.00% Shares
TD PRIVATE CLIENT WEALTH LLC $418 170 0.00% Shares
ROTHSCHILD INVESTMENT LLC $379 154 0.00% Shares
ACADIAN ASSET MANAGEMENT LLC $323 132,385 0.00% Shares
GAMMA Investing LLC $315 128 0.00% Shares
FIFTH THIRD BANCORP $312 127 0.00% Shares
COMERICA BANK $235 127 0.00% Shares
IFP Advisors, Inc $214 87 0.00% Shares
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $199 127 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $198 80,106 0.00% Shares
Thrivent Financial for Lutherans $136 55,342 0.00% Shares
True Wealth Design, LLC $133 54 0.00% Shares
Wealth Enhancement Trust Services, Inc. $86 35 0.00% Shares
Clearstead Advisors, LLC $72 29 0.00% Shares
SJS Investment Consulting Inc. $69 28 0.00% Shares
MATHER GROUP, LLC. $52 21 0.00% Shares
Virtu Financial LLC $26 10,565 0.00% Shares
JPL Wealth Management, LLC $18 7 0.00% Shares
Caitong International Asset Management Co., Ltd $12 5 0.00% Shares