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 |
|---|---|---|---|---|---|
| Everence Capital Management Inc | 6,590 | $208.0K | 0.01% | +6,590 | New |
| Headlands Technologies LLC | 6,685 | $210.8K | 0.02% | +6,685 | New |
| Claret Asset Management Corp | 6,695 | $211.0K | 0.03% | +6,695 | New |
| Algert Global LLC | 6,740 | $212.5K | 0.00% | +6,740 | New |
| Maryland State Retirement & Pension System | 6,797 | $214.3K | 0.00% | +6,797 | New |
| Machina Capital S.A.S. | 6,847 | $215.9K | 0.04% | +6,847 | New |
| SIH Partners, LLLP | 6,872 | $216.7K | 0.01% | +6,872 | New |
| DnB Asset Management AS | 6,923 | $218.3K | 0.00% | +6,923 | New |
| Prudential Financial Inc | 7,395 | $233.2K | 0.00% | −765−9.4% | Reduced |
| Public Employees Retirement Association of Colorado | 7,635 | $241.0K | 0.00% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 7,652 | $241.3K | 0.00% | +7,652 | New |
| Mount Yale Investment Advisors, LLC | 7,690 | $242.5K | 0.01% | +7,690 | New |
| SEB Asset Management AB | 7,798 | $245.9K | 0.00% | +7,798 | New |
| Swiss Life Asset Management Ltd | 8,007 | $252.5K | 0.00% | +8,007 | New |
| Bailard, Inc. | 8,100 | $255.4K | 0.01% | +8,100 | New |
| Profund Advisors LLC | 8,236 | $259.7K | 0.01% | −1,008−10.9% | Reduced |
| Securian Asset Management, Inc | 9,150 | $288.5K | 0.01% | +123+1.4% | Added |
| Evergreen Capital Management LLC | 9,338 | $294.4K | 0.01% | +1,290+16.0% | Added |
| Group One Trading, L.P. | 9,414 | $296.8K | 0.01% | +9,414 | New |
| Gilder Gagnon Howe & Co LLC | 9,494 | $299.3K | 0.00% | +9,494 | New |
| Federated Hermes, Inc. | 9,868 | $311.1K | 0.00% | −105−1.1% | Reduced |
| Caitong International Asset Management Co., Ltd | 9,886 | $311.7K | 0.06% | +9,868+54,822.2% | Added |
| Fieldview Capital Management, LLC | 10,251 | $323.2K | 0.09% | +10,251 | New |
| Wealth Enhancement Advisory Services, LLC | 10,131 | $330.3K | 0.00% | −950−8.6% | Reduced |
| Captrust Financial Advisors | 10,908 | $343.9K | 0.00% | +10,908 | New |
| MML Investors Services, LLC | 10,975 | $346.0K | 0.00% | −19,917−64.5% | Reduced |
| Yorktown Management & Research Co Inc | 11,300 | $356.3K | 0.30% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 11,350 | $357.9K | 0.00% | +848+8.1% | Added |
| Vident Advisory, LLC | 11,407 | $359.7K | 0.00% | −2,813−19.8% | Reduced |
| Cetera Investment Advisers | 11,656 | $367.5K | 0.00% | −245−2.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 11,699 | $368.9K | 0.00% | −743,125−98.5% | Reduced |
| Virtu Financial LLC | 11,703 | $369.0K | 0.02% | +11,703 | New |
| State of Alaska, Department of Revenue | 12,396 | $390.0K | 0.00% | +260+2.1% | Added |
| Keybank National Association | 12,380 | $390.3K | 0.00% | −1,185−8.7% | Reduced |
| Alpine Global Management, LLC | 12,630 | $398.2K | 0.06% | +12,630 | New |
| Bank of Montreal | 13,143 | $414.4K | 0.00% | −932−6.6% | Reduced |
| Skopos Labs, Inc. | 13,208 | $416.4K | 0.01% | +13,208 | New |
| Catalyst Funds Management Pty Ltd | 13,500 | $425.7K | 0.07% | +13,500 | New |
| State of Wyoming | 13,834 | $436.2K | 0.05% | +3,165+29.7% | Added |
| Acadian Asset Management LLC | 13,881 | $437.0K | 0.00% | +9,074+188.8% | Added |
| CWM, LLC | 13,860 | $437.0K | 0.00% | −193−1.4% | Reduced |
| CI Private Wealth, LLC | 13,899 | $438.2K | 0.00% | −558−3.9% | Reduced |
| The PNC Financial Services Group, Inc. | 13,949 | $439.8K | 0.00% | +2,129+18.0% | Added |
| Virginia Retirement Systems Et Al | 15,069 | $475.1K | 0.00% | −1,100−6.8% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 15,232 | $480.3K | 0.00% | +3,337+28.1% | Added |
| Jane Street Group, LLC | 15,479 | $488.1K | 0.00% | −165,699−91.5% | Reduced |
| JustInvest LLC | 15,498 | $488.7K | 0.00% | +1,230+8.6% | Added |
| PEAK6 LLC | 15,503 | $488.8K | 0.01% | −12,039−43.7% | Reduced |
| American Century Companies Inc | 15,598 | $491.8K | 0.00% | +5,324+51.8% | Added |
| Commerce Bank | 15,646 | $493.3K | 0.00% | +5,391+52.6% | Added |
| ProShare Advisors LLC | 16,331 | $514.9K | 0.00% | −4,442−21.4% | Reduced |
| Xponance, Inc. | 16,337 | $515.1K | 0.00% | +3,601+28.3% | Added |
| Bridgewater Associates, LP | 16,645 | $524.8K | 0.00% | +16,645 | New |
| Graham Capital Management, L.P. | 16,956 | $534.6K | 0.02% | −5,577−24.8% | Reduced |
| Mirabella Financial Services LLP | 17,082 | $538.6K | 0.05% | +17,082 | New |
| Rockefeller Capital Management L.P. | 17,124 | $539.9K | 0.00% | +248+1.5% | Added |
| TSG Advice Partners, LLC | 17,192 | $542.1K | 0.08% | +25+0.1% | Added |
| Integrated Wealth Concepts LLC | 17,391 | $548.3K | 0.00% | −585−3.3% | Reduced |
| HSBC Holdings PLC | 18,355 | $575.0K | 0.00% | −21,456−53.9% | Reduced |
| Ethic Inc. | 18,622 | $587.2K | 0.01% | −447−2.3% | Reduced |
| Vestmark Advisory Solutions, Inc. | 18,795 | $592.6K | 0.01% | +18,795 | New |
| Vontobel Holding Ltd. | 19,332 | $609.5K | 0.00% | +2,919+17.8% | Added |
| Pacer Advisors, Inc. | 19,744 | $623.0K | 0.00% | −12,569−38.9% | 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 |
| BNP Paribas Arbitrage, SA | 20,774 | $655.0K | 0.00% | −178,011−89.5% | Reduced |
| CenterBook Partners LP | 21,847 | $688.8K | 0.04% | +21,847 | New |
| Moody National Bank Trust Division | 22,355 | $704.9K | 0.07% | −16,112−41.9% | Reduced |
| Pictet Asset Management Holding SA | 22,377 | $705.5K | 0.00% | +1,590+7.6% | Added |
| Alps Advisors Inc | 22,592 | $712.3K | 0.00% | −7,197−24.2% | Reduced |
| Ameritas Investment Partners, Inc. | 22,731 | $716.7K | 0.02% | 00.0% | Unchanged |
| 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 |
| Deutsche Bank AG | 24,120 | $760.5K | 0.00% | +3,938+19.5% | Added |
| Prentiss Smith & Co Inc | 24,285 | $765.7K | 0.44% | −775−3.1% | Reduced |
| Pathstone Holdings, LLC | 24,354 | $767.9K | 0.00% | +12,542+106.2% | Added |
| Advisors Asset Management, Inc. | 24,604 | $775.8K | 0.01% | +860+3.6% | Added |
| Fox Run Management, L.L.C. | 27,987 | $784.8K | 0.14% | −4,760−14.5% | Reduced |
| Oregon Public Employees Retirement Fund | 25,437 | $802.0K | 0.01% | +700+2.8% | Added |
| New Mexico Educational Retirement Board | 27,081 | $854.0K | 0.03% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 27,812 | $876.9K | 0.01% | +62+0.2% | Added |
| Thrivent Financial for Lutherans | 27,971 | $882.0K | 0.00% | +42+0.2% | Added |
| Pinnacle Financial Partners, Inc. | 28,116 | $886.5K | 0.01% | −4,360−13.4% | Reduced |
| Millennium Management LLC | 28,127 | $886.8K | 0.00% | −1,313,612−97.9% | Reduced |
| New York State Teachers Retirement System | 28,178 | $888.0K | 0.00% | −4,022−12.5% | Reduced |
| Altfest L J & Co Inc | 28,167 | $888.1K | 0.09% | +11,880+72.9% | Added |
| Toroso Investments, LLC | 28,462 | $897.4K | 0.00% | +5,327+23.0% | Added |
| KLP Kapitalforvaltning AS | 28,500 | $898.6K | 0.00% | +1,000+3.6% | Added |
| Lecap Asset Management Ltd | 28,521 | $899.3K | 0.34% | −1,175−4.0% | Reduced |
| Fifth Third Bancorp | 29,063 | $916.4K | 0.00% | +27,890+2,377.7% | Added |
| State of Michigan Retirement System | 29,900 | $942.7K | 0.00% | +600+2.0% | Added |
| Royal Bank of Canada | 30,337 | $957.0K | 0.00% | −7,197−19.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 30,863 | $973.1K | 0.00% | +13,778+80.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 31,105 | $980.7K | 0.00% | +68+0.2% | Added |
| Vanguard Investments Australia, Ltd. | 31,842 | $1.00M | 0.00% | +31,842 | New |
| Creative Planning | 32,554 | $1.03M | 0.00% | +7,148+28.1% | Added |
| Arizona State Retirement System | 35,593 | $1.12M | 0.01% | −446−1.2% | Reduced |
| Louisiana State Employees Retirement System | 36,000 | $1.14M | 0.02% | +1,700+5.0% | Added |
| LPL Financial LLC | 36,078 | $1.14M | 0.00% | +3,605+11.1% | Added |
| Yousif Capital Management, LLC | 36,243 | $1.14M | 0.01% | −2,043−5.3% | Reduced |