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 2025
Institutional positions in Allegro Microsystems, Inc. as of Jun 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
- 274
- −15 vs. Q1 2025
- Shares held
- 146.0M
- −9.87M (−6.3%) vs. Q1 2025
- Total value
- $4.99B
- +$1.07B (+27.4%) vs. Q1 2025
- New holders
- 53
- 95 more added
- Sold out
- 68
- 103 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Campbell & CO Investment Adviser LLC | 42,126 | $1.44M | 0.09% | +42,126 | New |
| Teachers Retirement System of the State of Kentucky | 39,633 | $1.35M | 0.01% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 38,956 | $1.33M | 0.00% | +2,251+6.1% | Added |
| Moody National Bank Trust Division | 38,467 | $1.32M | 0.12% | 00.0% | Unchanged |
| HSBC Holdings PLC | 37,940 | $1.30M | 0.00% | +2,046+5.7% | Added |
| Arizona State Retirement System | 37,608 | $1.29M | 0.01% | +715+1.9% | Added |
| Louisiana State Employees Retirement System | 36,800 | $1.26M | 0.02% | +200+0.5% | Added |
| LPL Financial LLC | 36,095 | $1.23M | 0.00% | −22,875−38.8% | Reduced |
| Handelsbanken Fonder AB | 34,000 | $1.16M | 0.00% | +2,800+9.0% | Added |
| New York State Teachers Retirement System | 33,600 | $1.15M | 0.00% | −200−0.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 33,588 | $1.15M | 0.01% | −97,662−74.4% | Reduced |
| New Mexico Educational Retirement Board | 31,881 | $1.09M | 0.04% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 31,652 | $1.08M | 0.00% | +961+3.1% | Added |
| State of Michigan Retirement System | 31,400 | $1.07M | 0.01% | +100+0.3% | Added |
| Thrivent Financial for Lutherans | 30,781 | $1.05M | 0.00% | +130+0.4% | Added |
| Van Eck Associates Corp | 29,817 | $1.02M | 0.00% | +8,474+39.7% | Added |
| Northwestern Mutual Investment Management Company, LLC | 29,188 | $997.9K | 0.02% | +122+0.4% | Added |
| STRS Ohio | 29,122 | $995.7K | 0.00% | +29,122 | New |
| Alps Advisors Inc | 28,138 | $962.0K | 0.01% | −3,548−11.2% | Reduced |
| Nkcfo LLC | 28,000 | $957.0K | 0.40% | +28,000 | New |
| KLP Kapitalforvaltning AS | 27,500 | $940.2K | 0.00% | +2,600+10.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 26,883 | $919.1K | 0.00% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 26,794 | $916.1K | 0.03% | +11,783+78.5% | Added |
| Oregon Public Employees Retirement Fund | 26,737 | $914.1K | 0.02% | +200+0.8% | Added |
| Ameritas Investment Partners, Inc. | 25,382 | $867.8K | 0.03% | −782−3.0% | Reduced |
| Sora Investors LLC | 25,000 | $854.8K | 0.08% | +25,000 | New |
| Picton Mahoney Asset Management | 23,992 | $821.0K | 0.01% | +23,992 | New |
| Ethic Inc. | 23,758 | $812.0K | 0.01% | +4,281+22.0% | Added |
| Synovus Financial Corp | 23,747 | $811.9K | 0.01% | +713+3.1% | Added |
| Ensign Peak Advisors, Inc | 23,466 | $802.3K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 22,435 | $767.1K | 0.00% | −12,281−35.4% | Reduced |
| Bridgefront Capital, LLC | 22,310 | $762.8K | 0.20% | +22,310 | New |
| Advisors Asset Management, Inc. | 22,033 | $753.3K | 0.01% | −639−2.8% | Reduced |
| ProShare Advisors LLC | 21,372 | $730.7K | 0.00% | +295+1.4% | Added |
| Legato Capital Management LLC | 20,860 | $713.2K | 0.08% | +7,360+54.5% | Added |
| AQR Capital Management LLC | 20,729 | $698.2K | 0.00% | +6,966+50.6% | Added |
| Pathstone Holdings, LLC | 20,125 | $688.1K | 0.00% | −1,617−7.4% | Reduced |
| Occudo Quantitative Strategies LP | 19,753 | $675.4K | 0.08% | +19,753 | New |
| Teacher Retirement System of Texas | 19,573 | $669.2K | 0.00% | +745+4.0% | Added |
| Keybank National Association | 19,415 | $663.8K | 0.00% | +2,290+13.4% | Added |
| Bayforest Capital Ltd | 19,000 | $649.6K | 0.28% | +19,000 | New |
| Entropy Technologies, LP | 18,838 | $644.1K | 0.05% | +18,838 | New |
| BNP Paribas Arbitrage, SA | 18,717 | $639.9K | 0.00% | −131,857−87.6% | Reduced |
| Guggenheim Capital LLC | 18,701 | $639.4K | 0.01% | −2,244−10.7% | Reduced |
| SG Americas Securities, LLC | 18,654 | $638.0K | 0.00% | −13,376−41.8% | Reduced |
| Creative Planning | 18,592 | $635.7K | 0.00% | −6,227−25.1% | Reduced |
| Lecap Asset Management Ltd | 18,423 | $629.9K | 0.22% | +18,423 | New |
| Circle Wealth Management, LLC | 17,717 | $605.7K | 0.01% | −491−2.7% | Reduced |
| Oak Thistle LLC | 17,410 | $595.2K | 0.09% | −41,208−70.3% | Reduced |
| Pictet Asset Management Holding SA | 17,400 | $594.9K | 0.00% | −2,606−13.0% | Reduced |
| CI Private Wealth, LLC | 17,239 | $589.4K | 0.00% | +3,685+27.2% | Added |
| Quantbot Technologies LP | 17,180 | $587.4K | 0.02% | +17,180 | New |
| Xponance, Inc. | 17,179 | $587.4K | 0.00% | +1,511+9.6% | Added |
| Aigen Investment Management, LP | 16,921 | $578.5K | 0.08% | +16,921 | New |
| Bank of Montreal | 15,011 | $513.2K | 0.00% | −3,240−17.8% | Reduced |
| Caption Management, LLC | 15,000 | $512.9K | 0.05% | +11,900+383.9% | Added |
| State of Alaska, Department of Revenue | 14,672 | $501.0K | 0.01% | −390−2.6% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 14,342 | $490.4K | 0.00% | +211+1.5% | Added |
| The PNC Financial Services Group, Inc. | 14,332 | $490.0K | 0.00% | −2,021−12.4% | Reduced |
| JustInvest LLC | 14,223 | $486.3K | 0.01% | −12,744−47.3% | Reduced |
| Virginia Retirement Systems Et Al | 14,069 | $481.0K | 0.00% | +900+6.8% | Added |
| Deutsche Bank AG | 13,906 | $475.4K | 0.00% | −12,426−47.2% | Reduced |
| Banque Pictet & Cie SA | 13,389 | $457.8K | 0.00% | −900−6.3% | Reduced |
| Federated Hermes, Inc. | 12,204 | $417.3K | 0.00% | +4,712+62.9% | Added |
| Vident Advisory, LLC | 11,823 | $404.2K | 0.00% | +1,742+17.3% | Added |
| Russell Investments Group, Ltd. | 11,643 | $398.1K | 0.00% | −848−6.8% | Reduced |
| Summit Trail Advisors, LLC | 11,530 | $394.2K | 0.01% | +11,530 | New |
| Prudential Financial Inc | 15,684 | $392.4K | 0.00% | +3,040+24.0% | Added |
| Yorktown Management & Research Co Inc | 11,300 | $386.3K | 0.37% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 11,087 | $379.0K | 0.01% | −5,346−32.5% | Reduced |
| RSM US Wealth Management LLC | 11,019 | $376.7K | 0.01% | −743−6.3% | Reduced |
| Commerce Bank | 10,930 | $373.7K | 0.00% | 00.0% | Unchanged |
| Amundi | 10,011 | $357.6K | 0.00% | +10,011 | New |
| Avantax Advisory Services, Inc. | 10,405 | $355.7K | 0.00% | −656−5.9% | Reduced |
| Securian Asset Management, Inc | 9,875 | $337.6K | 0.01% | 00.0% | Unchanged |
| Readystate Asset Management LP | 9,486 | $324.3K | 0.01% | +9,486 | New |
| XTX Topco Ltd | 9,451 | $323.1K | 0.01% | +9,451 | New |
| American Century Companies Inc | 9,319 | $318.6K | 0.00% | −8,663−48.2% | Reduced |
| Profund Advisors LLC | 8,941 | $305.7K | 0.01% | −315−3.4% | Reduced |
| Gotham Asset Management, LLC | 8,350 | $285.5K | 0.00% | +8,350 | New |
| Sterling Capital Management LLC | 7,947 | $271.7K | 0.00% | +1,438+22.1% | Added |
| Quest Partners LLC | 7,758 | $265.2K | 0.03% | +7,758 | New |
| Johnson Investment Counsel Inc | 7,659 | $261.9K | 0.00% | +7,659 | New |
| Public Employees Retirement Association of Colorado | 7,635 | $261.0K | 0.00% | 00.0% | Unchanged |
| Claret Asset Management Corp | 6,805 | $233.0K | 0.03% | +6,805 | New |
| Maryland State Retirement & Pension System | 6,797 | $232.4K | 0.01% | +6,797 | New |
| Everence Capital Management Inc | 6,590 | $225.0K | 0.01% | +6,590 | New |
| Utah Retirement Systems | 6,505 | $222.4K | 0.00% | +6,505 | New |
| Assetmark, Inc | 6,342 | $216.8K | 0.00% | −868−12.0% | Reduced |
| CIBC Asset Management Inc | 6,132 | $209.7K | 0.00% | +6,132 | New |
| Canada Pension Plan Investment Board | 6,100 | $208.6K | 0.00% | +3,700+154.2% | Added |
| Graham Capital Management, L.P. | 6,047 | $206.7K | 0.01% | +6,047 | New |
| ISAM Funds (UK) Ltd | 5,945 | $203.3K | 0.04% | −3,016−33.7% | Reduced |
| Advisor Group Holdings, Inc. | 5,591 | $189.4K | 0.00% | +214+4.0% | Added |
| Clear Street Markets LLC | 5,000 | $170.9K | 0.06% | +1,000+25.0% | Added |
| Newbridge Financial Services Group, Inc. | 5,000 | $170.9K | 0.03% | +5,000 | New |
| 1620 Investment Advisors, Inc. | 4,944 | $169.0K | 0.12% | +1,504+43.7% | Added |
| Wexford Capital LP | 4,070 | $139.2K | 0.04% | +4,070 | New |
| KBC Group NV | 3,694 | $126.0K | 0.00% | −2,433−39.7% | Reduced |
| CWM, LLC | 3,677 | $126.0K | 0.00% | −622−14.5% | Reduced |