List of institutional investors who are active in the last 9 months.
| # | Name | Latest Filing Quarter | Latest Holding Count | Latest AUM |
| 4451 | LYNCH & ASSOCIATES | 2025Q1 | 116 | $462.34M |
| 4452 | Lynch Asset Management Inc. | 2025Q1 | 44 | $222.79M |
| 4453 | Lynrock Lake LP | 2024Q4 | 19 | $630.46M |
| 4454 | LYNWOOD PRICE CAPITAL MANAGEMENT LP | 2025Q1 | 15 | $175.38M |
| 4455 | Lynx Investment Advisory | 2024Q4 | 146 | $146.6M |
| 4456 | Lynx1 Capital Management LP | 2024Q4 | 18 | $266.71M |
| 4457 | LYRICAL ASSET MANAGEMENT LP | 2024Q4 | 38 | $6.76B |
| 4458 | M & L Capital Management Ltd | 2025Q1 | 18 | $333.98M |
| 4459 | M Financial Asset Management Inc. | 2024Q4 | 9 | $20.65M |
| 4460 | M Holdings Securities Inc. | 2024Q4 | 128 | $596.54M |
| 4461 | M Wealth Management LLC | 2024Q4 | 43 | $94.78M |
| 4462 | M&G PLC | 2024Q4 | 394 | $15.66B |
| 4463 | M&T BANK CORP | 2025Q1 | 1487 | $27.31B |
| 4464 | M. Kraus & Co | 2025Q1 | 79 | $328.83M |
| 4465 | M. Kulyk & Associates LLC | 2025Q1 | 98 | $368.97M |
| 4466 | M.D. Sass LLC | 2025Q1 | 32 | $1.14B |
| 4467 | M.E. ALLISON & CO. INC. | 2025Q1 | 152 | $100.72M |
| 4468 | M1 Capital Management LLC | 2025Q1 | 89 | $159.92M |
| 4469 | M28 Capital Management LP | 2024Q4 | 11 | $101.86M |
| 4470 | M3 Advisory Group LLC | 2025Q1 | 131 | $123.84M |
| 4471 | M3F Inc. | 2024Q4 | 29 | $345.91M |
| 4472 | MA Private Wealth | 2025Q1 | 72 | $519.24M |
| 4473 | Mach-1 Financial Group LLC | 2024Q4 | 56 | $55.23M |
| 4474 | Machina Capital S.A.S. | 2025Q1 | 275 | $337.08M |
| 4475 | MACKAY SHIELDS LLC | 2025Q1 | 54 | $671.95M |
| 4476 | MACKENZIE FINANCIAL CORP | 2025Q1 | 1651 | $69.94B |
| 4477 | Macquarie Group Limited | 2024Q4 | 1594 | $82.24B |
| 4478 | MACROVIEW INVESTMENT MANAGEMENT LLC | 2025Q1 | 82 | $105.64M |
| 4479 | MAD RIVER INVESTORS | 2025Q1 | 23 | $232.37M |
| 4480 | Madden Advisory Services Inc. | 2025Q1 | 91 | $181.99M |
| 4481 | MADDEN SECURITIES Corp | 2025Q1 | 114 | $256.78M |
| 4482 | Mader & Shannon Wealth Management Inc. | 2025Q1 | 19 | $147.74M |
| 4483 | Madison Asset Management LLC | 2025Q1 | 349 | $8.98B |
| 4484 | Madison Avenue Partners, LP | 2024Q4 | 15 | $944.37M |
| 4485 | MADISON DEARBORN PARTNERS LLC | 2025Q1 | 0 | $0 |
| 4486 | Madison International Realty Holdings, LLC | 2025Q1 | 2 | $170.64M |
| 4487 | Madison Investment Advisors LLC | 2024Q4 | 335 | $8.87B |
| 4488 | Madison Park Capital Advisors LLC | 2025Q1 | 58 | $113.99M |
| 4489 | Madison Wealth Partners Inc | 2025Q1 | 152 | $396.54M |
| 4490 | Madrona Financial Services LLC | 2025Q1 | 106 | $362.61M |
| 4491 | Madrona Venture Group LLC | 2025Q1 | 3 | $28.49M |
| 4492 | Madrone Advisors LLC | 2024Q4 | 6 | $524.76M |
| 4493 | Maestria Partners LLC | 2025Q1 | 14 | $236.66M |
| 4494 | Magellan Asset Management Ltd | 2024Q4 | 87 | $9.1B |
| 4495 | Magma Venture Partners General Partner Ltd. | 2024Q4 | 3 | $108.94M |
| 4496 | MAGNETAR FINANCIAL LLC | 2024Q4 | 522 | $3.24B |
| 4497 | Magnitude Capital LLC | 2024Q4 | 1 | $287.3M |
| 4498 | MAGNOLIA CAPITAL ADVISORS LLC | 2024Q4 | 139 | $195.69M |
| 4499 | MAGNOLIA CAPITAL MANAGEMENT LTD | 2025Q1 | 72 | $116.6M |
| 4500 | MAGNOLIA GROUP LLC | 2025Q1 | 9 | $589.89M |