ALGM · Company research
Allegro MicroSystems, Inc. Common Stock (ALGM): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| Copia Wealth Management | 2058771 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 27 | 1880 | — | — | — | Aug 18, 2026 | SEC_13F_DATASET |
| State of Tennessee, Department of Treasury | 1587973 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 62389 | 4343523 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| AMERICAN CENTURY COMPANIES INC | 748054 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23247 | 1618456 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| BW Gestao de Investimentos Ltda. | 1568280 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 34106 | 2374460 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SHELTON CAPITAL MANAGEMENT | 1002784 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4135 | 287879 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| S SQUARED TECHNOLOGY, LLC | 1322924 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 332451 | 23145239 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Curated Wealth Partners LLC | 1781284 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 60000 | 63312 | — | — | — | Jul 13, 2026 | SEC_13F_DATASET |
| Keating Financial Advisory Services, Inc. | 2103443 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 52 | 3620 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| ALGERT GLOBAL LLC | 1275218 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 65240 | 4542009 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 689521 | 48004452 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| SEB Asset Management AB | 2127509 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5865 | 408323 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| ProShare Advisors LLC | 1357955 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13407 | 933395 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| M&T Bank Corp | 36270 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2904 | 202176 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| Perigon Wealth Management, LLC | 1575239 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3916 | 272632 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| KLP KAPITALFORVALTNING AS | 1717443 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 28500 | 1984170 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Ameritas Investment Partners, Inc. | 1055980 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 22847 | 1590608 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Mascoma Wealth Management LLC | 1695664 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 88 | 6127 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| ATLAS CAPITAL ADVISORS INC. | 1434165 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 54 | 1702 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Callan Family Office, LLC | 1938970 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4138 | 288087 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| SUMMIT SECURITIES GROUP LLC | 1531593 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2633 | 183309 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1360480 | 94716618 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 85686 | 5965459 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| KENNEDY CAPITAL MANAGEMENT LLC | 884589 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 689668 | 48014686 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| US BANCORP \DE\ | 36104 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2284 | 159012 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Amundi | 1330387 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 49273 | 3430386 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9466266 | 628663171 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| USS Investment Management Ltd | 1587381 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8500 | 591685 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| DIMENSIONAL FUND ADVISORS LP | 354204 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 88225 | 6142225 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Nippon Life Global Investors Americas, Inc. | 1040190 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 143870 | 10016229 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Golden State Wealth Management, LLC | 1776033 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 36 | 2506 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| AVIVA PLC | 1140022 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3891 | 270891 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Atlantic Union Bankshares Corp | 883948 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 241 | 16779 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 928047 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 91616 | 6378306 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BARCLAYS PLC | 312069 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12595 | 876864 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Kilter Group LLC | 2058915 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40 | 2785 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Axxion S.A. | 2030181 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6702 | 466593 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Tidal Investments LLC | 1600064 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16729 | 1164673 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| T. Rowe Price Investment Management, Inc. | 1897612 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 517648 | 36039 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Tower Research Capital LLC (TRC) | 1533421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2762 | 192290 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Orion Porfolio Solutions, LLC | 1360533 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2918 | 203151 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Vanguard Global Advisers, LLC | 1811242 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 48314 | 3363621 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Principia Wealth Advisory, LLC | 2041436 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20 | 1392 | — | — | — | Aug 26, 2026 | SEC_13F_DATASET |
| Utah Retirement Systems | 1548392 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6505 | 452878 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ExodusPoint Capital Management, LP | 1736225 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15279 | 1063724 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Sumitomo Mitsui Trust Group, Inc. | 1475365 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23712 | 1650829 | — | — | — | Jul 30, 2026 | SEC_13F_DATASET |
| Quantbot Technologies LP | 1512991 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1284 | 89392 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Hurley Capital, LLC | 1632844 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 756 | 52633 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 1638555 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12500 | 870250 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Vestmark Advisory Solutions, Inc. | 1736982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20813 | 1449001 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Merit Financial Group, LLC | 1621225 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1416 | 98582 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC | 1629649 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 27925 | 1944139 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| LORD, ABBETT & CO. LLC | 728100 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 525863 | 36611 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Louisiana State Employees Retirement System | 1537191 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 36000 | 1135080 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| Swiss National Bank | 1582202 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 250900 | 17467658 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| MetLife Investment Management, LLC | 1529735 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 64638 | 4500098 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| IMA Advisory Services, Inc. | 1455495 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3 | 209 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 1005354 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23469 | 1633912 | — | — | — | Aug 25, 2026 | SEC_13F_DATASET |
| XPONANCE LLC | 1637541 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 27992 | 1948803 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| NORGES BANK | 1374170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1294958 | 90154976 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 921739 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1159503 | 80725000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1368163 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 61148 | 4257124 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Jupiter Topco LLC | 2146052 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 57329 | 3990672 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| VANGUARD FIDUCIARY TRUST CO | 933478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 800030 | 55698089 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Essential Partners LLC | 2136442 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 123 | 8563 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7668472 | 533879021 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| TriaGen Wealth Management LLC | 1843848 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 21186 | 1474969 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
| YOUSIF CAPITAL MANAGEMENT, LLC | 1858789 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 34160 | 2378219 | — | — | — | Jul 16, 2026 | SEC_13F_DATASET |
| NISA INVESTMENT ADVISORS, LLC | 937615 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3545 | 246803 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| VANGUARD ASSET MANAGEMENT, Ltd | 1680208 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 119149 | 8295153 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RITHOLTZ WEALTH MANAGEMENT | 1698218 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3254 | 226543 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| PROFUND ADVISORS LLC | 1129919 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9503 | 661599 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| MERCER GLOBAL ADVISORS INC /ADV | 853758 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13153 | 915698 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| NEW YORK STATE COMMON RETIREMENT FUND | 810265 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 89119 | 6204465 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Quantinno Capital Management LP | 1759654 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 166217 | 11572060 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Clearstead Advisors, LLC | 842775 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 44 | 3064 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Lightrock Netherlands B.V. | 2041485 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 206490 | 14375833 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Dynasty Wealth Management, LLC | 1727599 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4704 | 327492 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| DEUTSCHE BANK AG\ | 948046 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 61643 | 4291586 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| JONES FINANCIAL COMPANIES LLLP | 815917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 64921 | 3758277 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Seascape Capital Management | 1418342 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3028 | 211 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.