ALTG — 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 |
|---|---|---|---|---|
| Mill Road Capital Management LLC | $28,294,656 | 4,373,208 | 20.43% | Shares |
| BlackRock, Inc. | $10,752,927 | 1,661,967 | 7.77% | Shares |
| CastleKnight Management LP | $10,465,387 | 1,617,525 | 7.56% | Shares |
| Voss Capital, LP | $7,612,052 | 1,176,515 | 5.50% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $6,816,365 | 1,053,534 | 4.92% | Shares |
| ROYCE & ASSOCIATES LP | $6,536,615 | 1,010,296 | 4.72% | Shares |
| VANGUARD GROUP INC | $6,119,080 | 1,330,235 | 4.42% | Shares |
| Nantahala Capital Management, LLC | $4,689,288 | 724,774 | 3.39% | Shares |
| CIBC Private Wealth Group LLC | $3,419,293 | 472,278 | 2.47% | Shares |
| First Eagle Investment Management, LLC | $3,364,400 | 520,000 | 2.43% | Shares |
| STATE STREET CORP | $3,342,493 | 516,614 | 2.41% | Shares |
| AQR CAPITAL MANAGEMENT LLC | $3,324,779 | 513,876 | 2.40% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $3,304,116 | 510,566 | 2.39% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $2,993,849 | 462,637 | 2.16% | Shares |
| CITADEL ADVISORS LLC | $1,990,955 | 307,721 | 1.44% | Shares |
| TUDOR INVESTMENT CORP ET AL | $1,781,754 | 275,387 | 1.29% | Shares |
| CIBC Bancorp USA Inc. | $1,659,309 | 256,462 | 1.20% | Shares |
| Point72 Asset Management, L.P. | $1,576,687 | 243,692 | 1.14% | Shares |
| GOLDMAN SACHS GROUP INC | $1,480,634 | 228,846 | 1.07% | Shares |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $1,402,301 | 216,739 | 1.01% | Shares |
| Cubist Systematic Strategies, LLC | $1,279,104 | 176,672 | 0.92% | Shares |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1,210,298 | 187,063 | 0.87% | Shares |
| WOLVERINE ASSET MANAGEMENT LLC | $1,150,625 | 177,840 | 0.83% | Shares |
| MILLENNIUM MANAGEMENT LLC | $1,116,625 | 172,585 | 0.81% | Shares |
| NORTHERN TRUST CORP | $1,010,162 | 156,130 | 0.73% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $982,787 | 151,899 | 0.71% | Shares |
| RBF Capital, LLC | $962,477 | 148,760 | 0.70% | Shares |
| Register Financial Advisors LLC | $948,731 | 146,635 | 0.69% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $923,366 | 142,715 | 0.67% | Shares |
| Quantinno Capital Management LP | $904,934 | 139,866 | 0.65% | Shares |
| Connor, Clark & Lunn Investment Management Ltd. | $700,617 | 108,287 | 0.51% | Shares |
| BANK OF AMERICA CORP /DE/ | $655,896 | 101,375 | 0.47% | Shares |
| Squarepoint Ops LLC | $651,251 | 100,657 | 0.47% | Shares |
| JANE STREET GROUP, LLC | $608,827 | 94,100 | 0.44% | Call option |
| Meixler Investment Management, Ltd. | $600,041 | 92,742 | 0.43% | Shares |
| ARISTEIA CAPITAL, L.L.C. | $577,680 | 89,286 | 0.42% | Shares |
| STRS OHIO | $568,713 | 87,900 | 0.41% | Shares |
| Walleye Capital LLC | $568,144 | 87,812 | 0.41% | Shares |
| JANE STREET GROUP, LLC | $494,728 | 76,465 | 0.36% | Shares |
| Jump Financial, LLC | $442,548 | 68,400 | 0.32% | Shares |
| Russell Investments Group, Ltd. | $418,563 | 64,693 | 0.30% | Shares |
| Bank of New York Mellon Corp | $380,577 | 58,822 | 0.27% | Shares |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $378,689 | 58,530 | 0.27% | Shares |
| VOYA INVESTMENT MANAGEMENT LLC | $371,022 | 57,345 | 0.27% | Shares |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $366,293 | 56,614 | 0.26% | Shares |
| OCCUDO QUANTITATIVE STRATEGIES LP | $363,989 | 56,258 | 0.26% | Shares |
| NewEdge Advisors, LLC | $326,457 | 50,457 | 0.24% | Shares |
| JANE STREET GROUP, LLC | $319,618 | 49,400 | 0.23% | Put option |
| Dynamic Technology Lab Private Ltd | $306,000 | 47,348 | 0.22% | Shares |
| XTX Topco Ltd | $280,410 | 43,340 | 0.20% | Shares |
| UBS Group AG | $266,144 | 41,135 | 0.19% | Shares |
| AMERIPRISE FINANCIAL INC | $256,872 | 39,702 | 0.19% | Shares |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $254,918 | 39,400 | 0.18% | Shares |
| Nuveen, LLC | $252,732 | 39,062 | 0.18% | Shares |
| SIMPLEX TRADING, LLC | $249,871 | 38,620 | 0.18% | Shares |
| MORGAN STANLEY | $248,491 | 38,406 | 0.18% | Shares |
| Invesco Ltd. | $245,873 | 38,002 | 0.18% | Shares |
| Trexquant Investment LP | $242,192 | 37,433 | 0.17% | Shares |
| MARSHALL WACE, LLP | $234,513 | 36,246 | 0.17% | Shares |
| ALLIANCEBERNSTEIN L.P. | $233,434 | 43,470 | 0.17% | Shares |
| CITADEL ADVISORS LLC | $227,744 | 35,200 | 0.16% | Call option |
| Qube Research & Technologies Ltd | $225,641 | 34,875 | 0.16% | Shares |
| MML INVESTORS SERVICES, LLC | $214,707 | 33,185 | 0.16% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $212,475 | 32,840 | 0.15% | Shares |
| Schonfeld Strategic Advisors LLC | $203,150 | 31,399 | 0.15% | Shares |
| JPMORGAN CHASE & CO | $199,914 | 29,573 | 0.14% | Shares |
| Quadrature Capital Ltd | $191,007 | 29,522 | 0.14% | Shares |
| PDT Partners, LLC | $186,336 | 28,800 | 0.13% | Shares |
| Corton Capital Inc. | $177,612 | 24,532 | 0.13% | Shares |
| Centiva Capital, LP | $169,410 | 26,184 | 0.12% | Shares |
| Melone Private Wealth, LLC | $162,766 | 25,157 | 0.12% | Shares |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $149,988 | 23,182 | 0.11% | Shares |
| Brevan Howard Capital Management LP | $143,524 | 22,183 | 0.10% | Shares |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $142,566 | 22,035 | 0.10% | Shares |
| Mariner, LLC | $129,301 | 19,969 | 0.09% | Shares |
| DEUTSCHE BANK AG\ | $126,533 | 19,557 | 0.09% | Shares |
| De Lisle Partners LLP | $124,645 | 19,280 | 0.09% | Shares |
| RITHOLTZ WEALTH MANAGEMENT | $117,133 | 18,104 | 0.08% | Shares |
| MERCER GLOBAL ADVISORS INC /ADV | $116,480 | 18,003 | 0.08% | Shares |
| Graham Capital Management, L.P. | $112,080 | 17,323 | 0.08% | Shares |
| Corient Private Wealth LP | $111,390 | 17,216 | 0.08% | Shares |
| RHUMBLINE ADVISERS | $110,987 | 17,155 | 0.08% | Shares |
| WELLS FARGO & COMPANY/MN | $109,924 | 16,990 | 0.08% | Shares |
| D. E. Shaw & Co., Inc. | $103,475 | 15,993 | 0.07% | Shares |
| TWO SIGMA INVESTMENTS, LP | $103,442 | 15,988 | 0.07% | Shares |
| Allspring Global Investments Holdings, LLC | $98,156 | 16,144 | 0.07% | Shares |
| Cerity Partners LLC | $93,376 | 14,432 | 0.07% | Shares |
| Inscription Capital, LLC | $90,075 | 13,922 | 0.07% | Shares |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $88,053 | 13,301 | 0.06% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $80,875 | 12,500 | 0.06% | Shares |
| CANADA PENSION PLAN INVESTMENT BOARD | $70,523 | 10,900 | 0.05% | Shares |
| GROUP ONE TRADING LLC | $67,870 | 10,490 | 0.05% | Shares |
| NEW YORK STATE COMMON RETIREMENT FUND | $67,819 | 10,482 | 0.05% | Shares |
| CITIGROUP INC | $59,796 | 9,242 | 0.04% | Shares |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $59,505 | 9,197 | 0.04% | Shares |
| Vanguard Global Advisers, LLC | $50,686 | 7,834 | 0.04% | Shares |
| AlphaQuest LLC | $48,084 | 10,453 | 0.03% | Shares |
| TWO SIGMA ADVISERS, LP | $46,920 | 10,200 | 0.03% | Shares |
| Center for Financial Planning, Inc. | $45,575 | 7,044 | 0.03% | Shares |
| Police & Firemen's Retirement System of New Jersey | $34,957 | 5,403 | 0.03% | Shares |
| ROYAL BANK OF CANADA | $32,000 | 4,869 | 0.02% | Shares |
| FMR LLC | $26,521 | 4,099 | 0.02% | Shares |
| Smartleaf Asset Management LLC | $24,444 | 3,616 | 0.02% | Shares |
| OSAIC HOLDINGS, INC. | $23,786 | 3,676 | 0.02% | Shares |
| BARCLAYS PLC | $20,891 | 3,229 | 0.02% | Shares |
| PNC Financial Services Group, Inc. | $20,419 | 3,156 | 0.01% | Shares |
| CWM, LLC | $18,387 | 3,424 | 0.01% | Shares |
| Arax Advisory Partners | $17,242 | 2,665 | 0.01% | Shares |
| Point72 Asia (Singapore) Pte. Ltd. | $16,066 | 2,219 | 0.01% | Shares |
| Tower Research Capital LLC (TRC) | $15,593 | 2,410 | 0.01% | Shares |
| Ameritas Investment Partners, Inc. | $14,965 | 2,313 | 0.01% | Shares |
| Versant Capital Management, Inc | $14,513 | 2,387 | 0.01% | Shares |
| Legal & General Group Plc | $12,067 | 1,865 | 0.01% | Shares |
| Point72 (DIFC) Ltd | $7,363 | 1,017 | 0.01% | Shares |
| Allworth Financial LP | $5,681 | 878 | 0.00% | Shares |
| Parkside Financial Bank & Trust | $4,737 | 732 | 0.00% | Shares |
| JONES FINANCIAL COMPANIES LLLP | $4,080 | 552 | 0.00% | Shares |
| Farther Finance Advisors, LLC | $4,047 | 624 | 0.00% | Shares |
| HARBOUR INVESTMENTS, INC. | $3,843 | 594 | 0.00% | Shares |
| GAMMA Investing LLC | $3,539 | 547 | 0.00% | Shares |
| EverSource Wealth Advisors, LLC | $3,376 | 522 | 0.00% | Shares |
| Bogart Wealth, LLC | $3,300 | 510 | 0.00% | Shares |
| NISA INVESTMENT ADVISORS, LLC | $2,989 | 462 | 0.00% | Shares |
| Essential Partners LLC | $2,400 | 371 | 0.00% | Shares |
| Sterling Capital Management LLC | $2,045 | 316 | 0.00% | Shares |
| ACADIAN ASSET MANAGEMENT LLC | $1,938 | 300,263 | 0.00% | Shares |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $1,779 | 275 | 0.00% | Shares |
| Point72 Europe (London) LLP | $1,405 | 194 | 0.00% | Shares |
| ROTHSCHILD INVESTMENT LLC | $1,391 | 215 | 0.00% | Shares |
| Rialto Wealth Management, LLC | $1,159 | 179 | 0.00% | Shares |
| SUMMIT SECURITIES GROUP LLC | $1,003 | 155 | 0.00% | Shares |
| Steward Partners Investment Advisory, LLC | $938 | 145 | 0.00% | Shares |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $870 | 162 | 0.00% | Shares |
| GSA CAPITAL PARTNERS LLP | $860 | 132,923 | 0.00% | Shares |
| True Wealth Design, LLC | $790 | 122 | 0.00% | Shares |
| Cornerstone Financial Management LLC | $770 | 119 | 0.00% | Shares |
| Fortitude Family Office, LLC | $388 | 60 | 0.00% | Shares |
| IFP Advisors, Inc | $272 | 42 | 0.00% | Shares |
| Wealth Enhancement Trust Services, Inc. | $259 | 40 | 0.00% | Shares |
| SJS Investment Consulting Inc. | $130 | 20 | 0.00% | Shares |
| ASSETMARK, INC | $129 | 20 | 0.00% | Shares |
| Sunbelt Securities, Inc. | $97 | 18 | 0.00% | Shares |
| PRICE T ROWE ASSOCIATES INC /MD/ | $87 | 13,363 | 0.00% | Shares |
| Caitong International Asset Management Co., Ltd | $32 | 5 | 0.00% | Shares |
| Clearstead Advisors, LLC | $26 | 4 | 0.00% | Shares |
| JPL Wealth Management, LLC | $26 | 4 | 0.00% | Shares |