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, Q3 2025
Institutional positions in Allegro Microsystems, Inc. as of Sep 30, 2025. 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
- 296
- +25 vs. Q2 2025
- Shares held
- 135.9M
- −8.71M (−6.0%) vs. Q2 2025
- Total value
- $3.97B
- −$974.6M (−19.7%) vs. Q2 2025
- New holders
- 66
- 79 more added
- Sold out
- 41
- 108 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Securian Asset Management, Inc | 9,285 | $271.1K | 0.01% | −590−6.0% | Reduced |
| Mackenzie Financial Corp | 9,685 | $282.8K | 0.00% | +9,685 | New |
| Amundi | 10,042 | $283.4K | 0.00% | +31+0.3% | Added |
| Inceptionr LLC | 9,882 | $288.6K | 0.07% | +9,882 | New |
| Stifel Financial Corp | 9,988 | $291.6K | 0.00% | +9,988 | New |
| CI Private Wealth, LLC | 10,034 | $293.0K | 0.00% | −7,205−41.8% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 10,049 | $293.4K | 0.05% | +10,049 | New |
| Diversified Trust Co | 10,107 | $295.1K | 0.01% | +10,107 | New |
| American Century Companies Inc | 10,274 | $300.0K | 0.00% | +955+10.2% | Added |
| Commerce Bank | 10,365 | $302.7K | 0.00% | −565−5.2% | Reduced |
| Virtu Financial LLC | 10,393 | $303.0K | 0.02% | +10,393 | New |
| Two Sigma Advisers, LP | 10,800 | $315.4K | 0.00% | +10,800 | New |
| Federated Hermes, Inc. | 11,075 | $323.4K | 0.00% | −1,129−9.3% | Reduced |
| Yorktown Management & Research Co Inc | 11,300 | $330.0K | 0.26% | 00.0% | Unchanged |
| Worldquant Millennium Advisors LLC | 11,407 | $333.1K | 0.00% | +11,407 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 11,504 | $335.9K | 0.00% | −2,838−19.8% | Reduced |
| Bayforest Capital Ltd | 11,808 | $344.8K | 0.16% | −7,192−37.9% | Reduced |
| Brevan Howard Capital Management LP | 11,822 | $345.2K | 0.00% | +11,822 | New |
| Mirae Asset Global Investments Co., Ltd. | 12,392 | $361.8K | 0.00% | −14,491−53.9% | Reduced |
| Prudential Financial Inc | 12,845 | $375.1K | 0.00% | −2,839−18.1% | Reduced |
| Banque Pictet & Cie SA | 13,303 | $388.4K | 0.00% | −86−0.6% | Reduced |
| Bank of Montreal | 13,305 | $388.5K | 0.00% | −1,706−11.4% | Reduced |
| State of Alaska, Department of Revenue | 13,481 | $393.0K | 0.00% | −1,191−8.1% | Reduced |
| JustInvest LLC | 13,849 | $404.4K | 0.00% | −374−2.6% | Reduced |
| Voleon Capital Management LP | 14,099 | $411.7K | 0.01% | +14,099 | New |
| Vident Advisory, LLC | 14,269 | $416.7K | 0.00% | +2,446+20.7% | Added |
| Keybank National Association | 14,418 | $421.0K | 0.00% | −4,997−25.7% | Reduced |
| Russell Investments Group, Ltd. | 14,496 | $423.3K | 0.00% | +2,853+24.5% | Added |
| The PNC Financial Services Group, Inc. | 14,713 | $429.6K | 0.00% | +381+2.7% | Added |
| Point72 (DIFC) Ltd | 14,812 | $432.5K | 0.03% | +14,812 | New |
| Cetera Investment Advisers | 14,976 | $437.3K | 0.00% | +14,976 | New |
| Deutsche Bank AG | 14,993 | $437.8K | 0.00% | +1,087+7.8% | Added |
| Xponance, Inc. | 15,014 | $438.4K | 0.00% | −2,165−12.6% | Reduced |
| Pathstone Holdings, LLC | 15,446 | $451.0K | 0.00% | −4,679−23.2% | Reduced |
| State of Wyoming | 16,009 | $467.5K | 0.05% | +12,943+422.1% | Added |
| Pacer Advisors, Inc. | 16,310 | $476.3K | 0.00% | +16,310 | New |
| Graham Capital Management, L.P. | 16,336 | $477.0K | 0.02% | +10,289+170.2% | Added |
| ProShare Advisors LLC | 16,704 | $487.8K | 0.00% | −4,668−21.8% | Reduced |
| CWM, LLC | 17,046 | $498.0K | 0.00% | +13,369+363.6% | Added |
| Virginia Retirement Systems Et Al | 17,269 | $504.3K | 0.00% | +3,200+22.7% | Added |
| Pictet Asset Management Holding SA | 17,400 | $508.1K | 0.00% | 00.0% | Unchanged |
| Circle Wealth Management, LLC | 17,717 | $517.3K | 0.01% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 17,724 | $517.5K | 0.00% | +17,724 | New |
| Victory Capital Management Inc | 18,692 | $545.8K | 0.00% | −3,743−16.7% | Reduced |
| Quantessence Capital LLC | 19,463 | $568.3K | 0.18% | +19,463 | New |
| Ethic Inc. | 19,600 | $572.3K | 0.01% | −4,158−17.5% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 20,222 | $590.5K | 0.01% | +20,222 | New |
| Guggenheim Capital LLC | 20,234 | $590.8K | 0.00% | +1,533+8.2% | Added |
| Advisors Asset Management, Inc. | 22,499 | $657.0K | 0.01% | +466+2.1% | Added |
| Creative Planning | 22,677 | $662.2K | 0.00% | +4,085+22.0% | Added |
| Prelude Capital Management, LLC | 22,728 | $663.7K | 0.05% | +22,728 | New |
| Sherbrooke Park Advisers LLC | 22,778 | $665.1K | 0.31% | +22,778 | New |
| Ameritas Investment Partners, Inc. | 23,240 | $678.6K | 0.02% | −2,142−8.4% | Reduced |
| Ensign Peak Advisors, Inc | 23,466 | $685.2K | 0.00% | 00.0% | Unchanged |
| Synovus Financial Corp | 23,670 | $691.2K | 0.01% | −77−0.3% | Reduced |
| Teacher Retirement System of Texas | 24,106 | $703.9K | 0.00% | +4,533+23.2% | Added |
| Oregon Public Employees Retirement Fund | 24,937 | $728.2K | 0.01% | −1,800−6.7% | Reduced |
| Prentiss Smith & Co Inc | 25,060 | $731.8K | 0.41% | +25,060 | New |
| SG Americas Securities, LLC | 26,123 | $763.0K | 0.00% | +7,469+40.0% | Added |
| Parallax Volatility Advisers, L.P. | 26,298 | $767.9K | 0.02% | +26,298 | New |
| New Mexico Educational Retirement Board | 27,081 | $791.0K | 0.02% | −4,800−15.1% | Reduced |
| KLP Kapitalforvaltning AS | 27,500 | $803.0K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 27,634 | $806.9K | 0.01% | −1,554−5.3% | Reduced |
| Lisanti Capital Growth, LLC | 27,940 | $815.8K | 0.20% | −82,035−74.6% | Reduced |
| Thrivent Financial for Lutherans | 28,483 | $832.0K | 0.00% | −2,298−7.5% | Reduced |
| Alps Advisors Inc | 28,983 | $846.3K | 0.00% | +845+3.0% | Added |
| Verition Fund Management LLC | 29,024 | $847.5K | 0.00% | −29,762−50.6% | Reduced |
| State of Michigan Retirement System | 29,500 | $861.4K | 0.00% | −1,900−6.1% | Reduced |
| Walleye Trading LLC | 29,925 | $873.8K | 0.01% | +29,925 | New |
| Lazard Asset Management LLC | 31,652 | $924.2K | 0.00% | −146,170−82.2% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 31,652 | $924.2K | 0.00% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 31,818 | $929.1K | 0.00% | −1,770−5.3% | Reduced |
| Magnetar Financial LLC | 31,907 | $931.7K | 0.01% | +31,907 | New |
| Comerica Bank | 31,947 | $932.8K | 0.00% | −47,043−59.6% | Reduced |
| LMR Partners LLP | 32,000 | $934.4K | 0.01% | +32,000 | New |
| New York State Teachers Retirement System | 32,300 | $943.0K | 0.00% | −1,300−3.9% | Reduced |
| Louisiana State Employees Retirement System | 34,500 | $1.01M | 0.02% | −2,300−6.3% | Reduced |
| Envestnet Asset Management Inc | 37,383 | $1.09M | 0.00% | −15,273−29.0% | Reduced |
| LPL Financial LLC | 37,510 | $1.10M | 0.00% | +1,415+3.9% | Added |
| Arizona State Retirement System | 38,293 | $1.12M | 0.01% | +685+1.8% | Added |
| Moody National Bank Trust Division | 38,467 | $1.12M | 0.09% | 00.0% | Unchanged |
| Axq Capital, LP | 38,656 | $1.13M | 0.43% | +38,656 | New |
| Yousif Capital Management, LLC | 38,749 | $1.13M | 0.01% | −4,902−11.2% | Reduced |
| Public Employees Retirement System of Ohio | 39,247 | $1.15M | 0.00% | +291+0.7% | Added |
| Teachers Retirement System of the State of Kentucky | 39,633 | $1.16M | 0.01% | 00.0% | Unchanged |
| Needham Investment Management LLC | 40,000 | $1.17M | 0.08% | −10,000−20.0% | Reduced |
| Handelsbanken Fonder AB | 40,000 | $1.17M | 0.00% | +6,000+17.6% | Added |
| Sphera Management Technology Funds Ltd | 40,000 | $1.17M | 0.59% | +40,000 | New |
| Massachusetts Financial Services Co | 40,390 | $1.18M | 0.00% | −472,655−92.1% | Reduced |
| Ecofi Investissements SA | 41,200 | $1.20M | 1.44% | +14,100+52.0% | Added |
| Natixis Advisors, L.P. | 41,687 | $1.22M | 0.00% | −1,043−2.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 42,732 | $1.25M | 0.00% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 47,590 | $1.39M | 0.22% | +47,590 | New |
| Acadian Asset Management LLC | 48,240 | $1.40M | 0.00% | +48,240 | New |
| XTX Topco Ltd | 50,358 | $1.47M | 0.08% | +40,907+432.8% | Added |
| New York State Common Retirement Fund | 50,938 | $1.49M | 0.00% | −3,200−5.9% | Reduced |
| Occudo Quantitative Strategies LP | 53,934 | $1.57M | 0.19% | +34,181+173.0% | Added |
| Police & Firemen's Retirement System of New Jersey | 54,082 | $1.58M | 0.01% | +8,200+17.9% | Added |
| Treasurer of the State of North Carolina | 55,337 | $1.62M | 0.00% | −2,149−3.7% | Reduced |
| Kennedy Capital Management, Inc. | 56,613 | $1.65M | 0.04% | −16,782−22.9% | Reduced |