AMPY — 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 |
|---|---|---|---|---|
| CDC Financial, Inc. | $10,297,641 | 2,587,347 | 10.46% | Shares |
| BlackRock, Inc. | $9,799,664 | 2,462,227 | 9.95% | Shares |
| VANGUARD GROUP INC | $8,460,966 | 1,851,415 | 8.59% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $6,591,366 | 1,656,122 | 6.69% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $6,348,057 | 1,594,952 | 6.45% | Shares |
| AMERICAN CENTURY COMPANIES INC | $5,483,823 | 1,377,845 | 5.57% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $3,616,082 | 908,291 | 3.67% | Shares |
| D. E. Shaw & Co., Inc. | $2,629,467 | 660,670 | 2.67% | Shares |
| Foundry Partners, LLC | $2,580,806 | 690,055 | 2.62% | Shares |
| Caption Management, LLC | $2,275,306 | 571,685 | 2.31% | Shares |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $2,116,019 | 531,663 | 2.15% | Shares |
| Qube Research & Technologies Ltd | $2,083,793 | 523,566 | 2.12% | Shares |
| MARSHALL WACE, LLP | $2,044,140 | 513,603 | 2.08% | Shares |
| MORGAN STANLEY | $1,821,905 | 457,764 | 1.85% | Shares |
| STATE STREET CORP | $1,587,451 | 398,857 | 1.61% | Shares |
| Connor, Clark & Lunn Investment Management Ltd. | $1,340,380 | 336,779 | 1.36% | Shares |
| CITADEL ADVISORS LLC | $1,296,513 | 325,757 | 1.32% | Shares |
| Trexquant Investment LP | $1,134,845 | 285,137 | 1.15% | Shares |
| De Lisle Partners LLP | $1,134,334 | 284,651 | 1.15% | Shares |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $1,101,051 | 276,646 | 1.12% | Shares |
| NORTHERN TRUST CORP | $1,099,630 | 276,289 | 1.12% | Shares |
| Empowered Funds, LLC | $1,085,597 | 272,763 | 1.10% | Shares |
| Inlight Wealth Management, LLC | $1,073,697 | 269,773 | 1.09% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $965,130 | 242,495 | 0.98% | Shares |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $960,318 | 241,286 | 0.98% | Shares |
| RBF Capital, LLC | $960,227 | 241,263 | 0.98% | Shares |
| AMERIPRISE FINANCIAL INC | $856,648 | 215,238 | 0.87% | Shares |
| YACKTMAN ASSET MANAGEMENT LP | $815,900 | 205,000 | 0.83% | Shares |
| CITADEL ADVISORS LLC | $764,558 | 192,100 | 0.78% | Put option |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $725,554 | 182,300 | 0.74% | Call option |
| Nuveen, LLC | $709,348 | 178,228 | 0.72% | Shares |
| JANE STREET GROUP, LLC | $672,788 | 169,042 | 0.68% | Shares |
| Invesco Ltd. | $611,542 | 153,654 | 0.62% | Shares |
| MACKENZIE FINANCIAL CORP | $567,357 | 142,552 | 0.58% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $565,968 | 142,203 | 0.57% | Shares |
| RHUMBLINE ADVISERS | $506,732 | 127,321 | 0.51% | Shares |
| BOOTHBAY FUND MANAGEMENT, LLC | $478,679 | 120,271 | 0.49% | Shares |
| FIRST TRUST ADVISORS LP | $463,558 | 116,472 | 0.47% | Shares |
| Diametric Capital, LP | $461,293 | 115,903 | 0.47% | Shares |
| Bank of New York Mellon Corp | $434,031 | 109,053 | 0.44% | Shares |
| Jump Financial, LLC | $425,697 | 106,959 | 0.43% | Shares |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $410,334 | 103,099 | 0.42% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $363,374 | 91,300 | 0.37% | Put option |
| WOLVERINE TRADING, LLC | $357,399 | 65,100 | 0.36% | Call option |
| Dalton Investments, Inc. | $355,852 | 89,410 | 0.36% | Shares |
| CITADEL ADVISORS LLC | $349,842 | 87,900 | 0.36% | Call option |
| PANAGORA ASSET MANAGEMENT INC | $346,300 | 87,010 | 0.35% | Shares |
| FULLER & THALER ASSET MANAGEMENT, INC. | $311,316 | 78,220 | 0.32% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $301,386 | 75,725 | 0.31% | Shares |
| WOLVERINE TRADING, LLC | $296,476 | 54,003 | 0.30% | Shares |
| UBS Group AG | $283,173 | 71,149 | 0.29% | Shares |
| BANK OF AMERICA CORP /DE/ | $268,001 | 67,337 | 0.27% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $259,408 | 65,178 | 0.26% | Shares |
| Dynamic Technology Lab Private Ltd | $243,000 | 61,150 | 0.25% | Shares |
| Vanguard Personalized Indexing Management, LLC | $231,843 | 58,252 | 0.24% | Shares |
| MILLENNIUM MANAGEMENT LLC | $230,784 | 57,986 | 0.23% | Shares |
| SEI INVESTMENTS CO | $209,211 | 52,565 | 0.21% | Shares |
| Ethic Inc. | $206,956 | 51,999 | 0.21% | Shares |
| GOLDMAN SACHS GROUP INC | $202,081 | 50,774 | 0.21% | Shares |
| SIMPLEX TRADING, LLC | $200,890 | 50,475 | 0.20% | Shares |
| CANADA PENSION PLAN INVESTMENT BOARD | $184,274 | 46,300 | 0.19% | Shares |
| Russell Investments Group, Ltd. | $182,233 | 45,787 | 0.19% | Shares |
| TWO SIGMA INVESTMENTS, LP | $181,775 | 45,672 | 0.18% | Shares |
| Skopos Labs, Inc. | $178,714 | 28,640 | 0.18% | Shares |
| WELLS FARGO & COMPANY/MN | $163,260 | 41,020 | 0.17% | Shares |
| Lakewood Asset Management LLC | $156,713 | 39,375 | 0.16% | Shares |
| IMC-Chicago, LLC | $152,939 | 38,427 | 0.16% | Shares |
| Point72 Asset Management, L.P. | $142,743 | 35,865 | 0.14% | Shares |
| DEUTSCHE BANK AG\ | $138,990 | 34,922 | 0.14% | Shares |
| ELEMENT POINTE ADVISORS, LLC | $137,310 | 34,500 | 0.14% | Shares |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $128,940 | 32,397 | 0.13% | Shares |
| Federation des caisses Desjardins du Quebec | $124,773 | 31,350 | 0.13% | Shares |
| XTX Topco Ltd | $122,393 | 30,752 | 0.12% | Shares |
| WOLVERINE TRADING, LLC | $119,133 | 21,700 | 0.12% | Put option |
| FRANKLIN RESOURCES INC | $102,103 | 25,654 | 0.10% | Shares |
| ALLIANCEBERNSTEIN L.P. | $92,352 | 14,800 | 0.09% | Shares |
| RITHOLTZ WEALTH MANAGEMENT | $90,278 | 22,683 | 0.09% | Shares |
| FMR LLC | $86,047 | 21,620 | 0.09% | Shares |
| Ellevest, Inc. | $85,399 | 21,457 | 0.09% | Shares |
| PRELUDE CAPITAL MANAGEMENT, LLC | $85,256 | 21,421 | 0.09% | Shares |
| GROUP ONE TRADING LLC | $84,798 | 21,306 | 0.09% | Shares |
| Centiva Capital, LP | $83,166 | 20,896 | 0.08% | Shares |
| Engineers Gate Manager LP | $81,745 | 20,539 | 0.08% | Shares |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $77,706 | 19,524 | 0.08% | Shares |
| Pathstone Holdings, LLC | $68,532 | 17,219 | 0.07% | Shares |
| CITIGROUP INC | $65,654 | 16,496 | 0.07% | Shares |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $65,431 | 16,440 | 0.07% | Shares |
| Vanguard Global Advisers, LLC | $64,118 | 16,110 | 0.07% | Shares |
| WINTON GROUP Ltd | $62,864 | 15,795 | 0.06% | Shares |
| JPMORGAN CHASE & CO | $62,598 | 15,533 | 0.06% | Shares |
| Sanctuary Advisors, LLC | $59,549 | 14,962 | 0.06% | Shares |
| PRUDENTIAL FINANCIAL INC | $57,730 | 14,505 | 0.06% | Shares |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $53,951 | 8,646 | 0.05% | Shares |
| JANE STREET GROUP, LLC | $53,730 | 13,500 | 0.05% | Call option |
| NEW YORK STATE COMMON RETIREMENT FUND | $50,546 | 12,700 | 0.05% | Shares |
| GODSEY & GIBB, INC | $45,177 | 11,351 | 0.05% | Shares |
| Police & Firemen's Retirement System of New Jersey | $44,914 | 11,285 | 0.05% | Shares |
| Creative Planning | $43,430 | 10,912 | 0.04% | Shares |
| Quantinno Capital Management LP | $40,134 | 10,084 | 0.04% | Shares |
| BARCLAYS PLC | $36,473 | 9,164 | 0.04% | Shares |
| LOM Asset Management Ltd | $35,820 | 9,000 | 0.04% | Shares |
| ROYAL BANK OF CANADA | $31,000 | 7,543 | 0.03% | Shares |
| Farther Finance Advisors, LLC | $22,196 | 5,532 | 0.02% | Shares |
| Rockefeller Capital Management L.P. | $17,409 | 4,374 | 0.02% | Shares |
| CWM, LLC | $17,372 | 2,784 | 0.02% | Shares |
| Persistent Asset Partners Ltd | $15,793 | 3,968 | 0.02% | Shares |
| Legal & General Group Plc | $13,751 | 3,455 | 0.01% | Shares |
| Ameritas Investment Partners, Inc. | $12,895 | 3,240 | 0.01% | Shares |
| Tower Research Capital LLC (TRC) | $8,434 | 2,119 | 0.01% | Shares |
| COMERICA BANK | $6,508 | 1,424 | 0.01% | Shares |
| EverSource Wealth Advisors, LLC | $5,982 | 1,503 | 0.01% | Shares |
| FIFTH THIRD BANCORP | $5,668 | 1,424 | 0.01% | Shares |
| ACADIAN ASSET MANAGEMENT LLC | $5,095 | 1,281,589 | 0.01% | Shares |
| PNC Financial Services Group, Inc. | $4,775 | 1,200 | 0.00% | Shares |
| CoreCap Advisors, LLC | $3,980 | 1,000 | 0.00% | Shares |
| CSM Advisors, LLC | $2,942 | 738,620 | 0.00% | Shares |
| Sterling Capital Management LLC | $2,866 | 720 | 0.00% | Shares |
| Parallel Advisors, LLC | $2,655 | 667 | 0.00% | Shares |
| Fortitude Family Office, LLC | $2,448 | 615 | 0.00% | Shares |
| OSAIC HOLDINGS, INC. | $2,426 | 610 | 0.00% | Shares |
| NISA INVESTMENT ADVISORS, LLC | $2,312 | 581 | 0.00% | Shares |
| Private Wealth Management Group, LLC | $2,265 | 569 | 0.00% | Shares |
| GSA CAPITAL PARTNERS LLP | $1,655 | 415,806 | 0.00% | Shares |
| Pinnacle Wealth Planning Services, Inc. | $1,409 | 354 | 0.00% | Shares |
| Physician Wealth Advisors, Inc. | $1,386 | 348 | 0.00% | Shares |
| Bogart Wealth, LLC | $700 | 176 | 0.00% | Shares |
| Caitong International Asset Management Co., Ltd | $541 | 136 | 0.00% | Shares |
| Parkworth Wealth Management, Inc. | $515 | 161 | 0.00% | Shares |
| JONES FINANCIAL COMPANIES LLLP | $426 | 108 | 0.00% | Shares |
| HARBOUR INVESTMENTS, INC. | $398 | 100 | 0.00% | Shares |
| SBI Securities Co., Ltd. | $131 | 33 | 0.00% | Shares |
| PRICE T ROWE ASSOCIATES INC /MD/ | $119 | 29,709 | 0.00% | Shares |
| Hilton Head Capital Partners, LLC | $76 | 19 | 0.00% | Shares |
| Aventura Private Wealth, LLC | $72 | 18 | 0.00% | Shares |
| Optiver Holding B.V. | $24 | 6 | 0.00% | Shares |
| Arax Advisory Partners | $24 | 6 | 0.00% | Shares |
| SIGNATUREFD, LLC | $24 | 6 | 0.00% | Shares |
| CHILTON CAPITAL MANAGEMENT LLC | $20 | 5 | 0.00% | Shares |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $8 | 2 | 0.00% | Shares |
| Avion Wealth | $1 | 397 | 0.00% | Shares |
| Kingdom Financial Group LLC. | $1 | 0 | 0.00% | Shares |
| Covestor Ltd | $0 | 8 | 0.00% | Shares |
| BESSEMER GROUP INC | $0 | 61 | 0.00% | Shares |