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, Q1 2026
Institutional positions in Allegro Microsystems, Inc. as of Mar 31, 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
- 322
- +33 vs. Q4 2025
- Shares held
- 138.3M
- +17.5M (+14.5%) vs. Q4 2025
- Total value
- $4.32B
- +$1.13B (+35.5%) vs. Q4 2025
- New holders
- 69
- 126 more added
- Sold out
- 36
- 86 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Police & Firemen's Retirement System of New Jersey | 53,322 | $1.68M | 0.01% | +1,045+2.0% | Added |
| Treasurer of the State of North Carolina | 52,687 | $1.66M | 0.01% | +1,122+2.2% | Added |
| Boothbay Fund Management, LLC | 51,418 | $1.62M | 0.04% | +51,418 | New |
| Vanguard Global Advisers, LLC | 50,746 | $1.60M | 0.00% | +50,746 | New |
| Summit Trail Advisors, LLC | 50,223 | $1.58M | 0.02% | −42,283−45.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 48,604 | $1.53M | 0.00% | +5,872+13.7% | Added |
| Mutual of America Capital Management LLC | 47,575 | $1.50M | 0.02% | −4,043−7.8% | Reduced |
| Natixis Advisors, L.P. | 47,380 | $1.49M | 0.00% | +8,050+20.5% | Added |
| Gsa Capital Partners LLP | 46,767 | $1.48M | 0.09% | +46,767 | New |
| New York State Common Retirement Fund | 46,338 | $1.46M | 0.00% | −4,600−9.0% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 45,132 | $1.42M | 0.03% | +45,132 | New |
| Envestnet Asset Management Inc | 44,940 | $1.42M | 0.00% | +8,131+22.1% | Added |
| ExodusPoint Capital Management, LP | 44,900 | $1.42M | 0.01% | +44,900 | New |
| Maverick Capital LtdSuperinvestorMaverick Capital | 42,224 | $1.33M | 0.02% | +42,224 | New |
| Van Eck Associates Corp | 41,766 | $1.32M | 0.00% | −13,730−24.7% | Reduced |
| Teachers Retirement System of the State of Kentucky | 40,633 | $1.28M | 0.01% | +1,000+2.5% | Added |
| Barclays PLC | 40,342 | $1.27M | 0.00% | −47,958−54.3% | Reduced |
| Handelsbanken Fonder AB | 40,000 | $1.26M | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 39,942 | $1.20M | 0.00% | +39,564+10,466.7% | Added |
| Tudor Investment Corp Et Al | 37,128 | $1.17M | 0.01% | +11,463+44.7% | Added |
| Public Employees Retirement System of Ohio | 36,618 | $1.15M | 0.00% | −1,275−3.4% | Reduced |
| Engineers Gate Manager LP | 36,541 | $1.15M | 0.01% | −383,059−91.3% | Reduced |
| Yousif Capital Management, LLC | 36,243 | $1.14M | 0.01% | −2,043−5.3% | Reduced |
| LPL Financial LLC | 36,078 | $1.14M | 0.00% | +3,605+11.1% | Added |
| Louisiana State Employees Retirement System | 36,000 | $1.14M | 0.02% | +1,700+5.0% | Added |
| Arizona State Retirement System | 35,593 | $1.12M | 0.01% | −446−1.2% | Reduced |
| Creative Planning | 32,554 | $1.03M | 0.00% | +7,148+28.1% | Added |
| Vanguard Investments Australia, Ltd. | 31,842 | $1.00M | 0.00% | +31,842 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 31,105 | $980.7K | 0.00% | +68+0.2% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 30,863 | $973.1K | 0.00% | +13,778+80.6% | Added |
| Royal Bank of Canada | 30,337 | $957.0K | 0.00% | −7,197−19.2% | Reduced |
| State of Michigan Retirement System | 29,900 | $942.7K | 0.00% | +600+2.0% | Added |
| Fifth Third Bancorp | 29,063 | $916.4K | 0.00% | +27,890+2,377.7% | Added |
| Lecap Asset Management Ltd | 28,521 | $899.3K | 0.34% | −1,175−4.0% | Reduced |
| KLP Kapitalforvaltning AS | 28,500 | $898.6K | 0.00% | +1,000+3.6% | Added |
| Toroso Investments, LLC | 28,462 | $897.4K | 0.00% | +5,327+23.0% | Added |
| Altfest L J & Co Inc | 28,167 | $888.1K | 0.09% | +11,880+72.9% | Added |
| New York State Teachers Retirement System | 28,178 | $888.0K | 0.00% | −4,022−12.5% | Reduced |
| Millennium Management LLC | 28,127 | $886.8K | 0.00% | −1,313,612−97.9% | Reduced |
| Pinnacle Financial Partners, Inc. | 28,116 | $886.5K | 0.01% | −4,360−13.4% | Reduced |
| Thrivent Financial for Lutherans | 27,971 | $882.0K | 0.00% | +42+0.2% | Added |
| Northwestern Mutual Investment Management Company, LLC | 27,812 | $876.9K | 0.01% | +62+0.2% | Added |
| New Mexico Educational Retirement Board | 27,081 | $854.0K | 0.03% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 25,437 | $802.0K | 0.01% | +700+2.8% | Added |
| Fox Run Management, L.L.C. | 27,987 | $784.8K | 0.14% | −4,760−14.5% | Reduced |
| Advisors Asset Management, Inc. | 24,604 | $775.8K | 0.01% | +860+3.6% | Added |
| Pathstone Holdings, LLC | 24,354 | $767.9K | 0.00% | +12,542+106.2% | Added |
| Prentiss Smith & Co Inc | 24,285 | $765.7K | 0.44% | −775−3.1% | Reduced |
| Deutsche Bank AG | 24,120 | $760.5K | 0.00% | +3,938+19.5% | Added |
| Lazard Asset Management LLC | 23,712 | $747.6K | 0.00% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 23,712 | $747.6K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 22,731 | $716.7K | 0.02% | 00.0% | Unchanged |
| Alps Advisors Inc | 22,592 | $712.3K | 0.00% | −7,197−24.2% | Reduced |
| Pictet Asset Management Holding SA | 22,377 | $705.5K | 0.00% | +1,590+7.6% | Added |
| Moody National Bank Trust Division | 22,355 | $704.9K | 0.07% | −16,112−41.9% | Reduced |
| CenterBook Partners LP | 21,847 | $688.8K | 0.04% | +21,847 | New |
| BNP Paribas Arbitrage, SA | 20,774 | $655.0K | 0.00% | −178,011−89.5% | Reduced |
| Victory Capital Management Inc | 19,814 | $624.7K | 0.00% | +1,093+5.8% | Added |
| Circle Wealth Management, LLC | 19,814 | $624.7K | 0.01% | +5,812+41.5% | Added |
| Pacer Advisors, Inc. | 19,744 | $623.0K | 0.00% | −12,569−38.9% | Reduced |
| Vontobel Holding Ltd. | 19,332 | $609.5K | 0.00% | +2,919+17.8% | Added |
| Vestmark Advisory Solutions, Inc. | 18,795 | $592.6K | 0.01% | +18,795 | New |
| Ethic Inc. | 18,622 | $587.2K | 0.01% | −447−2.3% | Reduced |
| HSBC Holdings PLC | 18,355 | $575.0K | 0.00% | −21,456−53.9% | Reduced |
| Integrated Wealth Concepts LLC | 17,391 | $548.3K | 0.00% | −585−3.3% | Reduced |
| TSG Advice Partners, LLC | 17,192 | $542.1K | 0.08% | +25+0.1% | Added |
| Rockefeller Capital Management L.P. | 17,124 | $539.9K | 0.00% | +248+1.5% | Added |
| Mirabella Financial Services LLP | 17,082 | $538.6K | 0.05% | +17,082 | New |
| Graham Capital Management, L.P. | 16,956 | $534.6K | 0.02% | −5,577−24.8% | Reduced |
| Bridgewater Associates, LP | 16,645 | $524.8K | 0.00% | +16,645 | New |
| Xponance, Inc. | 16,337 | $515.1K | 0.00% | +3,601+28.3% | Added |
| ProShare Advisors LLC | 16,331 | $514.9K | 0.00% | −4,442−21.4% | Reduced |
| Commerce Bank | 15,646 | $493.3K | 0.00% | +5,391+52.6% | Added |
| American Century Companies Inc | 15,598 | $491.8K | 0.00% | +5,324+51.8% | Added |
| PEAK6 LLC | 15,503 | $488.8K | 0.01% | −12,039−43.7% | Reduced |
| JustInvest LLC | 15,498 | $488.7K | 0.00% | +1,230+8.6% | Added |
| Jane Street Group, LLC | 15,479 | $488.1K | 0.00% | −165,699−91.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 15,232 | $480.3K | 0.00% | +3,337+28.1% | Added |
| Virginia Retirement Systems Et Al | 15,069 | $475.1K | 0.00% | −1,100−6.8% | Reduced |
| The PNC Financial Services Group, Inc. | 13,949 | $439.8K | 0.00% | +2,129+18.0% | Added |
| CI Private Wealth, LLC | 13,899 | $438.2K | 0.00% | −558−3.9% | Reduced |
| CWM, LLC | 13,860 | $437.0K | 0.00% | −193−1.4% | Reduced |
| Acadian Asset Management LLC | 13,881 | $437.0K | 0.00% | +9,074+188.8% | Added |
| State of Wyoming | 13,834 | $436.2K | 0.05% | +3,165+29.7% | Added |
| Catalyst Funds Management Pty Ltd | 13,500 | $425.7K | 0.07% | +13,500 | New |
| Skopos Labs, Inc. | 13,208 | $416.4K | 0.01% | +13,208 | New |
| Bank of Montreal | 13,143 | $414.4K | 0.00% | −932−6.6% | Reduced |
| Alpine Global Management, LLC | 12,630 | $398.2K | 0.06% | +12,630 | New |
| Keybank National Association | 12,380 | $390.3K | 0.00% | −1,185−8.7% | Reduced |
| State of Alaska, Department of Revenue | 12,396 | $390.0K | 0.00% | +260+2.1% | Added |
| Virtu Financial LLC | 11,703 | $369.0K | 0.02% | +11,703 | New |
| Schonfeld Strategic Advisors LLC | 11,699 | $368.9K | 0.00% | −743,125−98.5% | Reduced |
| Cetera Investment Advisers | 11,656 | $367.5K | 0.00% | −245−2.1% | Reduced |
| Vident Advisory, LLC | 11,407 | $359.7K | 0.00% | −2,813−19.8% | Reduced |
| Mercer Global Advisors Inc | 11,350 | $357.9K | 0.00% | +848+8.1% | Added |
| Yorktown Management & Research Co Inc | 11,300 | $356.3K | 0.30% | 00.0% | Unchanged |
| MML Investors Services, LLC | 10,975 | $346.0K | 0.00% | −19,917−64.5% | Reduced |
| Captrust Financial Advisors | 10,908 | $343.9K | 0.00% | +10,908 | New |
| Wealth Enhancement Advisory Services, LLC | 10,131 | $330.3K | 0.00% | −950−8.6% | Reduced |
| Fieldview Capital Management, LLC | 10,251 | $323.2K | 0.09% | +10,251 | New |