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 |
|---|---|---|---|---|---|
| Amundi | 10,011 | $357.6K | 0.00% | +10,011 | New |
| Commerce Bank | 10,930 | $373.7K | 0.00% | 00.0% | Unchanged |
| RSM US Wealth Management LLC | 11,019 | $376.7K | 0.01% | −743−6.3% | Reduced |
| Wolverine Trading, LLC | 11,087 | $379.0K | 0.01% | −5,346−32.5% | Reduced |
| Yorktown Management & Research Co Inc | 11,300 | $386.3K | 0.37% | 00.0% | Unchanged |
| Prudential Financial Inc | 15,684 | $392.4K | 0.00% | +3,040+24.0% | Added |
| Summit Trail Advisors, LLC | 11,530 | $394.2K | 0.01% | +11,530 | New |
| Russell Investments Group, Ltd. | 11,643 | $398.1K | 0.00% | −848−6.8% | Reduced |
| Vident Advisory, LLC | 11,823 | $404.2K | 0.00% | +1,742+17.3% | Added |
| Federated Hermes, Inc. | 12,204 | $417.3K | 0.00% | +4,712+62.9% | Added |
| Banque Pictet & Cie SA | 13,389 | $457.8K | 0.00% | −900−6.3% | Reduced |
| Deutsche Bank AG | 13,906 | $475.4K | 0.00% | −12,426−47.2% | Reduced |
| Virginia Retirement Systems Et Al | 14,069 | $481.0K | 0.00% | +900+6.8% | Added |
| JustInvest LLC | 14,223 | $486.3K | 0.01% | −12,744−47.3% | Reduced |
| The PNC Financial Services Group, Inc. | 14,332 | $490.0K | 0.00% | −2,021−12.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 14,342 | $490.4K | 0.00% | +211+1.5% | Added |
| State of Alaska, Department of Revenue | 14,672 | $501.0K | 0.01% | −390−2.6% | Reduced |
| Caption Management, LLC | 15,000 | $512.9K | 0.05% | +11,900+383.9% | Added |
| Bank of Montreal | 15,011 | $513.2K | 0.00% | −3,240−17.8% | Reduced |
| Aigen Investment Management, LP | 16,921 | $578.5K | 0.08% | +16,921 | New |
| Xponance, Inc. | 17,179 | $587.4K | 0.00% | +1,511+9.6% | Added |
| Quantbot Technologies LP | 17,180 | $587.4K | 0.02% | +17,180 | New |
| CI Private Wealth, LLC | 17,239 | $589.4K | 0.00% | +3,685+27.2% | Added |
| Pictet Asset Management Holding SA | 17,400 | $594.9K | 0.00% | −2,606−13.0% | Reduced |
| Oak Thistle LLC | 17,410 | $595.2K | 0.09% | −41,208−70.3% | Reduced |
| Circle Wealth Management, LLC | 17,717 | $605.7K | 0.01% | −491−2.7% | Reduced |
| Lecap Asset Management Ltd | 18,423 | $629.9K | 0.22% | +18,423 | New |
| Creative Planning | 18,592 | $635.7K | 0.00% | −6,227−25.1% | Reduced |
| SG Americas Securities, LLC | 18,654 | $638.0K | 0.00% | −13,376−41.8% | Reduced |
| Guggenheim Capital LLC | 18,701 | $639.4K | 0.01% | −2,244−10.7% | Reduced |
| BNP Paribas Arbitrage, SA | 18,717 | $639.9K | 0.00% | −131,857−87.6% | Reduced |
| Entropy Technologies, LP | 18,838 | $644.1K | 0.05% | +18,838 | New |
| Bayforest Capital Ltd | 19,000 | $649.6K | 0.28% | +19,000 | New |
| Keybank National Association | 19,415 | $663.8K | 0.00% | +2,290+13.4% | Added |
| Teacher Retirement System of Texas | 19,573 | $669.2K | 0.00% | +745+4.0% | Added |
| Occudo Quantitative Strategies LP | 19,753 | $675.4K | 0.08% | +19,753 | New |
| Pathstone Holdings, LLC | 20,125 | $688.1K | 0.00% | −1,617−7.4% | Reduced |
| AQR Capital Management LLC | 20,729 | $698.2K | 0.00% | +6,966+50.6% | Added |
| Legato Capital Management LLC | 20,860 | $713.2K | 0.08% | +7,360+54.5% | Added |
| ProShare Advisors LLC | 21,372 | $730.7K | 0.00% | +295+1.4% | Added |
| Advisors Asset Management, Inc. | 22,033 | $753.3K | 0.01% | −639−2.8% | Reduced |
| Bridgefront Capital, LLC | 22,310 | $762.8K | 0.20% | +22,310 | New |
| Victory Capital Management Inc | 22,435 | $767.1K | 0.00% | −12,281−35.4% | Reduced |
| Ensign Peak Advisors, Inc | 23,466 | $802.3K | 0.00% | 00.0% | Unchanged |
| Synovus Financial Corp | 23,747 | $811.9K | 0.01% | +713+3.1% | Added |
| Ethic Inc. | 23,758 | $812.0K | 0.01% | +4,281+22.0% | Added |
| Picton Mahoney Asset Management | 23,992 | $821.0K | 0.01% | +23,992 | New |
| Sora Investors LLC | 25,000 | $854.8K | 0.08% | +25,000 | New |
| Ameritas Investment Partners, Inc. | 25,382 | $867.8K | 0.03% | −782−3.0% | Reduced |
| Oregon Public Employees Retirement Fund | 26,737 | $914.1K | 0.02% | +200+0.8% | Added |
| Boothbay Fund Management, LLC | 26,794 | $916.1K | 0.03% | +11,783+78.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 26,883 | $919.1K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 27,500 | $940.2K | 0.00% | +2,600+10.4% | Added |
| Nkcfo LLC | 28,000 | $957.0K | 0.40% | +28,000 | New |
| Alps Advisors Inc | 28,138 | $962.0K | 0.01% | −3,548−11.2% | Reduced |
| STRS Ohio | 29,122 | $995.7K | 0.00% | +29,122 | New |
| Northwestern Mutual Investment Management Company, LLC | 29,188 | $997.9K | 0.02% | +122+0.4% | Added |
| Van Eck Associates Corp | 29,817 | $1.02M | 0.00% | +8,474+39.7% | Added |
| Thrivent Financial for Lutherans | 30,781 | $1.05M | 0.00% | +130+0.4% | Added |
| State of Michigan Retirement System | 31,400 | $1.07M | 0.01% | +100+0.3% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 31,652 | $1.08M | 0.00% | +961+3.1% | Added |
| New Mexico Educational Retirement Board | 31,881 | $1.09M | 0.04% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 33,588 | $1.15M | 0.01% | −97,662−74.4% | Reduced |
| New York State Teachers Retirement System | 33,600 | $1.15M | 0.00% | −200−0.6% | Reduced |
| Handelsbanken Fonder AB | 34,000 | $1.16M | 0.00% | +2,800+9.0% | Added |
| LPL Financial LLC | 36,095 | $1.23M | 0.00% | −22,875−38.8% | Reduced |
| Louisiana State Employees Retirement System | 36,800 | $1.26M | 0.02% | +200+0.5% | Added |
| Arizona State Retirement System | 37,608 | $1.29M | 0.01% | +715+1.9% | Added |
| HSBC Holdings PLC | 37,940 | $1.30M | 0.00% | +2,046+5.7% | Added |
| Moody National Bank Trust Division | 38,467 | $1.32M | 0.12% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 38,956 | $1.33M | 0.00% | +2,251+6.1% | Added |
| Teachers Retirement System of the State of Kentucky | 39,633 | $1.35M | 0.01% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 42,126 | $1.44M | 0.09% | +42,126 | New |
| Natixis Advisors, L.P. | 42,730 | $1.46M | 0.00% | +4,167+10.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 42,732 | $1.46M | 0.00% | +5,515+14.8% | Added |
| Yousif Capital Management, LLC | 43,651 | $1.49M | 0.02% | −761−1.7% | Reduced |
| Robeco Schweiz AG | 45,000 | $1.54M | 0.04% | +45,000 | New |
| Police & Firemen's Retirement System of New Jersey | 45,882 | $1.57M | 0.01% | +3,744+8.9% | Added |
| Quantinno Capital Management LP | 46,939 | $1.60M | 0.01% | +7,177+18.0% | Added |
| Needham Investment Management LLC | 50,000 | $1.71M | 0.14% | 00.0% | Unchanged |
| Polymer Capital Management (US) LLC | 50,300 | $1.72M | 0.28% | −72,507−59.0% | Reduced |
| Envestnet Asset Management Inc | 52,656 | $1.80M | 0.00% | −52,310−49.8% | Reduced |
| Group One Trading, L.P. | 52,861 | $1.81M | 0.06% | +8,576+19.4% | Added |
| New York State Common Retirement Fund | 54,138 | $1.85M | 0.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 57,329 | $1.96M | 0.00% | −269,863−82.5% | Reduced |
| Treasurer of the State of North Carolina | 57,486 | $1.97M | 0.01% | +3,908+7.3% | Added |
| Verition Fund Management LLC | 58,786 | $2.01M | 0.01% | −56,084−48.8% | Reduced |
| Amalgamated Bank | 59,267 | $2.03M | 0.02% | −1,027−1.7% | Reduced |
| Mutual of America Capital Management LLC | 65,011 | $2.22M | 0.02% | −2,272−3.4% | Reduced |
| Itau Unibanco Holding S.A. | 70,000 | $2.39M | 0.09% | +70,000 | New |
| MetLife Investment Management | 70,267 | $2.40M | 0.01% | −2,081−2.9% | Reduced |
| State of New Jersey Common Pension Fund D | 72,692 | $2.49M | 0.01% | −4,658−6.0% | Reduced |
| Kennedy Capital Management, Inc. | 73,395 | $2.51M | 0.06% | −46,055−38.6% | Reduced |
| Bridgewater Associates, LP | 77,321 | $2.64M | 0.01% | +77,321 | New |
| Comerica Bank | 78,990 | $2.70M | 0.01% | −194,180−71.1% | Reduced |
| Jain Global LLC | 81,812 | $2.80M | 0.04% | −203,141−71.3% | Reduced |
| State Board of Administration of Florida Retirement System | 84,583 | $2.89M | 0.01% | +190+0.2% | Added |
| SEI Investments Co | 86,352 | $2.95M | 0.00% | −296,310−77.4% | Reduced |
| Price T Rowe Associates Inc | 89,327 | $3.06M | 0.00% | +12,038+15.6% | Added |
| State of Tennessee, Treasury Department | 93,365 | $3.19M | 0.01% | 00.0% | Unchanged |