Allegro Microsystems, Inc.
ALGM- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0000866291
In the last 90 days, Allegro Microsystems, Inc. insiders filed 0 open-market purchases and 2 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $10.2B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q2 2026
Institutional positions in Allegro Microsystems, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 375
- +58 vs. Q1 2026
- Shares held
- 148.2M
- +9.97M (+7.2%) vs. Q1 2026
- Total value
- $10.2B
- +$5.91B (+136.7%) vs. Q1 2026
- New holders
- 101
- 117 more added
- Sold out
- 43
- 107 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALGM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 375 | $10.2B |
| Q1 2026 | 322 | $4.32B |
| Q4 2025 | 294 | $3.60B |
| Q3 2025 | 296 | $3.97B |
| Q2 2025 | 274 | $4.99B |
| Q1 2025 | 292 | $3.96B |
| Q4 2024 | 256 | $3.11B |
| Q3 2024 | 248 | $3.32B |
| Q2 2024 | 268 | $3.03B |
| Q1 2024 | 277 | $2.80B |
| Q4 2023 | 288 | $2.91B |
| Q3 2023 | 312 | $2.99B |
| Q2 2023 | 353 | $4.41B |
| Q1 2023 | 314 | $4.67B |
| Q4 2022 | 219 | $2.89B |
| Q3 2022 | 170 | $1.97B |
| Q2 2022 | 172 | $1.83B |
| Q1 2022 | 173 | $2.54B |
| Q4 2021 | 165 | $3.18B |
| Q3 2021 | 153 | $2.71B |
| Q2 2021 | 129 | $2.22B |
| Q1 2021 | 123 | $1.98B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mirae Asset Global Investments Co., Ltd. | 14,339 | $998.3K | 0.00% | −893−5.9% | Reduced |
| Pacer Advisors, Inc. | 14,748 | $1.03M | 0.00% | −4,996−25.3% | Reduced |
| ExodusPoint Capital Management, LP | 15,279 | $1.06M | 0.01% | −29,621−66.0% | Reduced |
| Sig Brokerage, LP | 15,306 | $1.07M | 0.17% | +15,306 | New |
| Alps Advisors Inc | 15,476 | $1.08M | 0.01% | −7,116−31.5% | Reduced |
| Commerce Bank | 15,646 | $1.09M | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 16,456 | $1.15M | 0.00% | +2,507+18.0% | Added |
| Toroso Investments, LLC | 16,729 | $1.16M | 0.00% | −11,733−41.2% | Reduced |
| Csenge Advisory Group | 17,210 | $1.20M | 0.05% | +17,210 | New |
| IMC-Chicago, LLC | 17,227 | $1.20M | 0.01% | +17,227 | New |
| JustInvest LLC | 17,438 | $1.21M | 0.01% | +1,940+12.5% | Added |
| Barclays PLC | 17,736 | $1.23M | 0.00% | −22,606−56.0% | Reduced |
| Rockefeller Capital Management L.P. | 17,975 | $1.25M | 0.00% | +851+5.0% | Added |
| Tower Research Capital LLC (TRC) | 18,094 | $1.26M | 0.03% | +12,378+216.6% | Added |
| Vontobel Holding Ltd. | 18,267 | $1.27M | 0.00% | −1,065−5.5% | Reduced |
| CI Private Wealth, LLC | 19,425 | $1.35M | 0.00% | +5,526+39.8% | Added |
| Pictet Asset Management Holding SA | 19,570 | $1.36M | 0.00% | −2,807−12.5% | Reduced |
| Circle Wealth Management, LLC | 19,735 | $1.37M | 0.02% | −79−0.4% | Reduced |
| Victory Capital Management Inc | 20,176 | $1.40M | 0.00% | +362+1.8% | Added |
| Vestmark Advisory Solutions, Inc. | 20,813 | $1.45M | 0.01% | +2,018+10.7% | Added |
| BNP Paribas Arbitrage, SA | 20,888 | $1.45M | 0.00% | +114+0.5% | Added |
| TriaGen Wealth Management LLC | 21,186 | $1.47M | 0.37% | +21,186 | New |
| Ethic Inc. | 22,295 | $1.55M | 0.02% | +3,673+19.7% | Added |
| Intech Investment Management LLC | 22,670 | $1.58M | 0.01% | +22,670 | New |
| Ameritas Investment Partners, Inc. | 22,847 | $1.59M | 0.04% | +116+0.5% | Added |
| American Century Companies Inc | 23,247 | $1.62M | 0.00% | +7,649+49.0% | Added |
| Sirios Capital Management L P | 23,438 | $1.63M | 0.20% | −274,983−92.1% | Reduced |
| Virginia Retirement Systems Et Al | 23,469 | $1.63M | 0.01% | +8,400+55.7% | Added |
| Lazard Asset Management LLC | 23,712 | $1.65M | 0.00% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 23,712 | $1.65M | 0.00% | 00.0% | Unchanged |
| Prentiss Smith & Co Inc | 23,960 | $1.67M | 0.92% | −325−1.3% | Reduced |
| Advisors Asset Management, Inc. | 25,476 | $1.77M | 0.03% | +872+3.5% | Added |
| Oregon Public Employees Retirement Fund | 25,637 | $1.78M | 0.02% | +200+0.8% | Added |
| Prudential Financial Inc | 25,795 | $1.80M | 0.00% | +18,400+248.8% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 26,357 | $1.83M | 0.00% | +26,357 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 26,785 | $1.86M | 0.00% | −4,078−13.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 26,833 | $1.87M | 0.01% | −281,269−91.3% | Reduced |
| HSBC Holdings PLC | 26,862 | $1.87M | 0.00% | +8,507+46.3% | Added |
| New Mexico Educational Retirement Board | 27,081 | $1.89M | 0.05% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 27,568 | $1.92M | 0.00% | −403−1.4% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 27,925 | $1.94M | 0.02% | +113+0.4% | Added |
| Xponance, Inc. | 27,992 | $1.95M | 0.01% | +11,655+71.3% | Added |
| KLP Kapitalforvaltning AS | 28,500 | $1.98M | 0.01% | 00.0% | Unchanged |
| State of Michigan Retirement System | 29,000 | $2.02M | 0.01% | −900−3.0% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 29,721 | $2.07M | 0.01% | −1,384−4.4% | Reduced |
| Pathstone Holdings, LLC | 29,838 | $2.08M | 0.01% | +5,484+22.5% | Added |
| Fifth Third Bancorp | 30,449 | $2.12M | 0.00% | +1,386+4.8% | Added |
| SG Americas Securities, LLC | 31,235 | $2.17M | 0.00% | +25,990+495.5% | Added |
| New York State Teachers Retirement System | 32,200 | $2.24M | 0.00% | +4,022+14.3% | Added |
| State of Wyoming | 32,269 | $2.25M | 0.23% | +18,435+133.3% | Added |
| Vanguard Investments Australia, Ltd. | 32,878 | $2.29M | 0.01% | +1,036+3.3% | Added |
| BW Gestao de Investimentos Ltda. | 34,106 | $2.37M | 0.06% | −20,894−38.0% | Reduced |
| Yousif Capital Management, LLC | 34,160 | $2.38M | 0.03% | −2,083−5.7% | Reduced |
| Arizona State Retirement System | 34,511 | $2.40M | 0.01% | −1,082−3.0% | Reduced |
| Public Employees Retirement System of Ohio | 36,089 | $2.51M | 0.01% | −529−1.4% | Reduced |
| Louisiana State Employees Retirement System | 36,300 | $2.53M | 0.04% | +300+0.8% | Added |
| Gateway Investment Advisers LLC | 37,110 | $2.58M | 0.03% | +37,110 | New |
| Cetera Investment Advisers | 39,149 | $2.73M | 0.00% | +27,493+235.9% | Added |
| Legato Capital Management LLC | 39,195 | $2.73M | 0.23% | +39,195 | New |
| Creative Planning | 39,966 | $2.78M | 0.00% | +7,412+22.8% | Added |
| State of New Jersey Common Pension Fund D | 40,441 | $2.82M | 0.01% | −21,581−34.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 40,633 | $2.83M | 0.02% | 00.0% | Unchanged |
| Summit Trail Advisors, LLC | 41,752 | $2.91M | 0.04% | −8,471−16.9% | Reduced |
| Stifel Financial Corp | 42,037 | $2.93M | 0.00% | +42,037 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 43,188 | $3.01M | 0.00% | −27,768−39.1% | Reduced |
| Canada Pension Plan Investment Board | 44,000 | $3.06M | 0.00% | −78,000−63.9% | Reduced |
| Mutual of America Capital Management LLC | 46,126 | $3.21M | 0.03% | −1,449−3.0% | Reduced |
| Sphera Management Technology Funds Ltd | 47,550 | $3.31M | 1.16% | −9,600−16.8% | Reduced |
| Vanguard Global Advisers, LLC | 48,314 | $3.36M | 0.00% | −2,432−4.8% | Reduced |
| Amundi | 49,273 | $3.43M | 0.00% | +49,273 | New |
| Munro Partners | 49,800 | $3.47M | 0.08% | +49,800 | New |
| Treasurer of the State of North Carolina | 52,807 | $3.68M | 0.01% | +120+0.2% | Added |
| Jones Financial Companies LLLP | 64,921 | $3.76M | 0.00% | +24,979+62.5% | Added |
| Needham Investment Management LLC | 55,000 | $3.83M | 0.12% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 56,462 | $3.93M | 0.03% | +3,140+5.9% | Added |
| Jupiter Topco LLC | 57,329 | $3.99M | 0.00% | +57,329 | New |
| Amalgamated Bank | 58,401 | $4.07M | 0.03% | +2,605+4.7% | Added |
| Neuberger Berman Group LLC | 59,204 | $4.12M | 0.00% | +1,227+2.1% | Added |
| Guggenheim Capital LLC | 59,349 | $4.13M | 0.03% | +5,659+10.5% | Added |
| EAM Investors, LLC | 59,485 | $4.14M | 0.37% | +59,485 | New |
| Handelsbanken Fonder AB | 59,900 | $4.17M | 0.01% | +19,900+49.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 61,148 | $4.26M | 0.01% | +12,544+25.8% | Added |
| State of Tennessee, Treasury Department | 62,389 | $4.34M | 0.01% | −16,848−21.3% | Reduced |
| Holocene Advisors, LP | 63,010 | $4.39M | 0.01% | +63,010 | New |
| MetLife Investment Management | 64,638 | $4.50M | 0.02% | +3,587+5.9% | Added |
| Algert Global LLC | 65,240 | $4.54M | 0.05% | +58,500+868.0% | Added |
| Van Eck Associates Corp | 70,504 | $4.91M | 0.00% | +28,738+68.8% | Added |
| LPL Financial LLC | 71,589 | $4.98M | 0.00% | +35,511+98.4% | Added |
| Natixis Advisors, L.P. | 76,653 | $5.34M | 0.01% | +29,273+61.8% | Added |
| ArrowMark Colorado Holdings LLC | 83,361 | $5.80M | 0.24% | −37,423−31.0% | Reduced |
| Candriam Luxembourg S.C.A. | 84,708 | $5.89M | 0.03% | −1,365−1.6% | Reduced |
| Envestnet Asset Management Inc | 85,884 | $5.98M | 0.00% | +40,944+91.1% | Added |
| State of Wisconsin Investment Board | 88,089 | $6.13M | 0.01% | −6,864−7.2% | Reduced |
| Deutsche Bank AG | 88,759 | $6.18M | 0.00% | +64,639+268.0% | Added |
| New York State Common Retirement Fund | 89,119 | $6.20M | 0.01% | +42,781+92.3% | Added |
| Manufacturers Life Insurance Company, The | 91,616 | $6.38M | 0.00% | +10,544+13.0% | Added |
| Edgestream Partners, L.P. | 92,188 | $6.42M | 0.19% | +92,188 | New |
| Wells Fargo & Company | 94,917 | $6.61M | 0.00% | +21,456+29.2% | Added |
| Man Group plc | 95,101 | $6.62M | 0.01% | −211,248−69.0% | Reduced |
| State Board of Administration of Florida Retirement System | 96,177 | $6.70M | 0.01% | +3,380+3.6% | Added |