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 |
|---|---|---|---|---|---|
| Police & Firemen's Retirement System of New Jersey | 56,462 | $3.93M | 0.03% | +3,140+5.9% | Added |
| Needham Investment Management LLC | 55,000 | $3.83M | 0.12% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 64,921 | $3.76M | 0.00% | +24,979+62.5% | Added |
| Treasurer of the State of North Carolina | 52,807 | $3.68M | 0.01% | +120+0.2% | Added |
| Munro Partners | 49,800 | $3.47M | 0.08% | +49,800 | New |
| Amundi | 49,273 | $3.43M | 0.00% | +49,273 | New |
| Vanguard Global Advisers, LLC | 48,314 | $3.36M | 0.00% | −2,432−4.8% | Reduced |
| Sphera Management Technology Funds Ltd | 47,550 | $3.31M | 1.16% | −9,600−16.8% | Reduced |
| Mutual of America Capital Management LLC | 46,126 | $3.21M | 0.03% | −1,449−3.0% | Reduced |
| Canada Pension Plan Investment Board | 44,000 | $3.06M | 0.00% | −78,000−63.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 43,188 | $3.01M | 0.00% | −27,768−39.1% | Reduced |
| Stifel Financial Corp | 42,037 | $2.93M | 0.00% | +42,037 | New |
| Summit Trail Advisors, LLC | 41,752 | $2.91M | 0.04% | −8,471−16.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 40,633 | $2.83M | 0.02% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 40,441 | $2.82M | 0.01% | −21,581−34.8% | Reduced |
| Creative Planning | 39,966 | $2.78M | 0.00% | +7,412+22.8% | Added |
| Legato Capital Management LLC | 39,195 | $2.73M | 0.23% | +39,195 | New |
| Cetera Investment Advisers | 39,149 | $2.73M | 0.00% | +27,493+235.9% | Added |
| Gateway Investment Advisers LLC | 37,110 | $2.58M | 0.03% | +37,110 | New |
| Louisiana State Employees Retirement System | 36,300 | $2.53M | 0.04% | +300+0.8% | Added |
| Public Employees Retirement System of Ohio | 36,089 | $2.51M | 0.01% | −529−1.4% | Reduced |
| Arizona State Retirement System | 34,511 | $2.40M | 0.01% | −1,082−3.0% | Reduced |
| Yousif Capital Management, LLC | 34,160 | $2.38M | 0.03% | −2,083−5.7% | Reduced |
| BW Gestao de Investimentos Ltda. | 34,106 | $2.37M | 0.06% | −20,894−38.0% | Reduced |
| Vanguard Investments Australia, Ltd. | 32,878 | $2.29M | 0.01% | +1,036+3.3% | Added |
| State of Wyoming | 32,269 | $2.25M | 0.23% | +18,435+133.3% | Added |
| New York State Teachers Retirement System | 32,200 | $2.24M | 0.00% | +4,022+14.3% | Added |
| SG Americas Securities, LLC | 31,235 | $2.17M | 0.00% | +25,990+495.5% | Added |
| Fifth Third Bancorp | 30,449 | $2.12M | 0.00% | +1,386+4.8% | Added |
| Pathstone Holdings, LLC | 29,838 | $2.08M | 0.01% | +5,484+22.5% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 29,721 | $2.07M | 0.01% | −1,384−4.4% | Reduced |
| State of Michigan Retirement System | 29,000 | $2.02M | 0.01% | −900−3.0% | Reduced |
| KLP Kapitalforvaltning AS | 28,500 | $1.98M | 0.01% | 00.0% | Unchanged |
| Xponance, Inc. | 27,992 | $1.95M | 0.01% | +11,655+71.3% | Added |
| Northwestern Mutual Investment Management Company, LLC | 27,925 | $1.94M | 0.02% | +113+0.4% | Added |
| Thrivent Financial for Lutherans | 27,568 | $1.92M | 0.00% | −403−1.4% | Reduced |
| New Mexico Educational Retirement Board | 27,081 | $1.89M | 0.05% | 00.0% | Unchanged |
| HSBC Holdings PLC | 26,862 | $1.87M | 0.00% | +8,507+46.3% | Added |
| Jacobs Levy Equity Management, Inc | 26,833 | $1.87M | 0.01% | −281,269−91.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 26,785 | $1.86M | 0.00% | −4,078−13.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 26,357 | $1.83M | 0.00% | +26,357 | New |
| Prudential Financial Inc | 25,795 | $1.80M | 0.00% | +18,400+248.8% | Added |
| Oregon Public Employees Retirement Fund | 25,637 | $1.78M | 0.02% | +200+0.8% | Added |
| Advisors Asset Management, Inc. | 25,476 | $1.77M | 0.03% | +872+3.5% | Added |
| Prentiss Smith & Co Inc | 23,960 | $1.67M | 0.92% | −325−1.3% | Reduced |
| 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 |
| Virginia Retirement Systems Et Al | 23,469 | $1.63M | 0.01% | +8,400+55.7% | Added |
| Sirios Capital Management L P | 23,438 | $1.63M | 0.20% | −274,983−92.1% | Reduced |
| American Century Companies Inc | 23,247 | $1.62M | 0.00% | +7,649+49.0% | Added |
| Ameritas Investment Partners, Inc. | 22,847 | $1.59M | 0.04% | +116+0.5% | Added |
| Intech Investment Management LLC | 22,670 | $1.58M | 0.01% | +22,670 | New |
| Ethic Inc. | 22,295 | $1.55M | 0.02% | +3,673+19.7% | Added |
| TriaGen Wealth Management LLC | 21,186 | $1.47M | 0.37% | +21,186 | New |
| BNP Paribas Arbitrage, SA | 20,888 | $1.45M | 0.00% | +114+0.5% | Added |
| Vestmark Advisory Solutions, Inc. | 20,813 | $1.45M | 0.01% | +2,018+10.7% | Added |
| Victory Capital Management Inc | 20,176 | $1.40M | 0.00% | +362+1.8% | Added |
| Circle Wealth Management, LLC | 19,735 | $1.37M | 0.02% | −79−0.4% | Reduced |
| Pictet Asset Management Holding SA | 19,570 | $1.36M | 0.00% | −2,807−12.5% | Reduced |
| CI Private Wealth, LLC | 19,425 | $1.35M | 0.00% | +5,526+39.8% | Added |
| Vontobel Holding Ltd. | 18,267 | $1.27M | 0.00% | −1,065−5.5% | Reduced |
| Tower Research Capital LLC (TRC) | 18,094 | $1.26M | 0.03% | +12,378+216.6% | Added |
| Rockefeller Capital Management L.P. | 17,975 | $1.25M | 0.00% | +851+5.0% | Added |
| Barclays PLC | 17,736 | $1.23M | 0.00% | −22,606−56.0% | Reduced |
| JustInvest LLC | 17,438 | $1.21M | 0.01% | +1,940+12.5% | Added |
| IMC-Chicago, LLC | 17,227 | $1.20M | 0.01% | +17,227 | New |
| Csenge Advisory Group | 17,210 | $1.20M | 0.05% | +17,210 | New |
| Toroso Investments, LLC | 16,729 | $1.16M | 0.00% | −11,733−41.2% | Reduced |
| The PNC Financial Services Group, Inc. | 16,456 | $1.15M | 0.00% | +2,507+18.0% | Added |
| Commerce Bank | 15,646 | $1.09M | 0.00% | 00.0% | Unchanged |
| Alps Advisors Inc | 15,476 | $1.08M | 0.01% | −7,116−31.5% | Reduced |
| Sig Brokerage, LP | 15,306 | $1.07M | 0.17% | +15,306 | New |
| ExodusPoint Capital Management, LP | 15,279 | $1.06M | 0.01% | −29,621−66.0% | Reduced |
| Pacer Advisors, Inc. | 14,748 | $1.03M | 0.00% | −4,996−25.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 14,339 | $998.3K | 0.00% | −893−5.9% | Reduced |
| ProShare Advisors LLC | 13,407 | $933.4K | 0.00% | −2,924−17.9% | Reduced |
| Marshall Wace, LLP | 13,309 | $926.6K | 0.00% | −726,471−98.2% | Reduced |
| Mercer Global Advisors Inc | 13,153 | $915.7K | 0.00% | +1,803+15.9% | Added |
| Teacher Retirement System of Texas | 12,692 | $883.6K | 0.00% | +12,692 | New |
| State of Alaska, Department of Revenue | 12,164 | $846.0K | 0.01% | −232−1.9% | Reduced |
| Cerity Partners LLC | 12,009 | $836.0K | 0.00% | +12,009 | New |
| Yorktown Management & Research Co Inc | 11,300 | $786.7K | 0.48% | 00.0% | Unchanged |
| Vident Advisory, LLC | 10,954 | $762.6K | 0.01% | −453−4.0% | Reduced |
| Keybank National Association | 10,836 | $754.4K | 0.00% | −1,544−12.5% | Reduced |
| EntryPoint Capital, LLC | 10,812 | $752.7K | 0.18% | +10,812 | New |
| Bank of Montreal | 10,797 | $751.7K | 0.00% | −2,346−17.8% | Reduced |
| Captrust Financial Advisors | 10,136 | $705.7K | 0.00% | −772−7.1% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 10,094 | $702.7K | 0.01% | −32,130−76.1% | Reduced |
| Profund Advisors LLC | 9,503 | $661.6K | 0.02% | +1,267+15.4% | Added |
| Evergreen Capital Management LLC | 9,338 | $650.1K | 0.01% | 00.0% | Unchanged |
| Gilder Gagnon Howe & Co LLC | 9,242 | $643.4K | 0.01% | −252−2.7% | Reduced |
| Truist Financial Corp | 9,166 | $638.1K | 0.00% | +9,166 | New |
| Pinebridge Investments LLC | 9,105 | $633.9K | 0.01% | +9,105 | New |
| Entropy Technologies, LP | 8,728 | $607.6K | 0.02% | −58,991−87.1% | Reduced |
| Swiss Life Asset Management Ltd | 8,726 | $607.5K | 0.00% | +719+9.0% | Added |
| Wealth Enhancement Advisory Services, LLC | 10,944 | $600.5K | 0.00% | +813+8.0% | Added |
| USS Investment Management Ltd | 8,500 | $591.7K | 0.00% | +8,500 | New |
| Evolve Private Wealth, LLC | 8,428 | $586.8K | 0.04% | +8,428 | New |
| CAPROCK Group, Inc. | 8,220 | $572.3K | 0.01% | +8,220 | New |
| Pinnacle Financial Partners, Inc. | 7,863 | $547.4K | 0.00% | −20,253−72.0% | Reduced |