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 |
|---|---|---|---|---|---|
| Avion Wealth | 34 | $0 | 0.00% | +17+100.0% | Added |
| TFC Financial Management | 1 | $30 | 0.00% | 00.0% | Unchanged |
| Creative Financial Designs Inc | 5 | $146 | 0.00% | 00.0% | Unchanged |
| Atlantic Union Bankshares Corp | 5 | $146 | 0.00% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 6 | $175 | 0.00% | 00.0% | Unchanged |
| IMA Wealth, Inc. | 8 | $234 | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 9 | $263 | 0.00% | 00.0% | Unchanged |
| CIBC Private Wealth Group, LLC | 9 | $263 | 0.00% | 00.0% | Unchanged |
| South State Corp. | 10 | $292 | 0.00% | 00.0% | Unchanged |
| MV Capital Management, Inc. | 14 | $409 | 0.00% | 00.0% | Unchanged |
| Cromwell Holdings LLC | 19 | $555 | 0.00% | 00.0% | Unchanged |
| Atlantic Trust, LLC | 20 | $584 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 23 | $672 | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 23 | $672 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 27 | $788 | 0.00% | +27 | Added |
| Heartwood Wealth Advisors LLC | 27 | $788 | 0.00% | +27 | New |
| Cornerstone Planning Group LLC | 12 | $809 | 0.00% | −3−20.0% | Reduced |
| Guerra Advisors Inc | 30 | $876 | 0.00% | +30 | New |
| Fortitude Family Office, LLC | 35 | $1.02K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 38 | $1.11K | 0.00% | +38 | New |
| Root Financial Partners, LLC | 42 | $1.23K | 0.00% | +42 | New |
| Ronald Blue Trust, Inc. | 46 | $1.34K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 61 | $1.81K | 0.00% | −209−77.4% | Reduced |
| Kilter Group LLC | 81 | $2.37K | 0.00% | +17+26.6% | Added |
| Farmers & Merchants Investments Inc | 85 | $2.48K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 104 | $2.94K | 0.00% | −90−46.4% | Reduced |
| Bell Investment Advisors, Inc | 101 | $2.95K | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 104 | $3.04K | 0.00% | −228−68.7% | Reduced |
| True Wealth Design, LLC | 111 | $3.24K | 0.00% | +111 | New |
| Concord Wealth Partners | 120 | $3.50K | 0.00% | 00.0% | Unchanged |
| Mather Group, LLC. | 125 | $3.65K | 0.00% | +125 | New |
| Harbour Investments, Inc. | 131 | $3.83K | 0.00% | +131 | New |
| Leonteq Securities AG | 135 | $3.94K | 0.00% | −45−25.0% | Reduced |
| Versant Capital Management, Inc | 147 | $4.29K | 0.00% | +127+635.0% | Added |
| Truvestments Capital LLC | 154 | $4.50K | 0.00% | +154 | New |
| LGT Financial Advisors LLC | 157 | $4.58K | 0.01% | 00.0% | Unchanged |
| Rakuten Securities, Inc. | 178 | $5.20K | 0.00% | +166+1,383.3% | Added |
| Massmutual Trust Co FSB | 201 | $5.87K | 0.00% | 00.0% | Unchanged |
| Ci Investments Inc. | 207 | $6.00K | 0.00% | +207 | New |
| Optiver Holding B.V. | 220 | $6.42K | 0.00% | +220 | New |
| Spire Wealth Management | 226 | $6.60K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 234 | $6.83K | 0.00% | +10+4.5% | Added |
| Medallion Wealth Advisors, LLC | 250 | $7.30K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 253 | $7.39K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 258 | $7.53K | 0.00% | 00.0% | Unchanged |
| Wealthspire Advisors, LLC | 290 | $8.47K | 0.00% | +290 | New |
| Global X Japan Co., Ltd. | 315 | $9.20K | 0.00% | −172−35.3% | Reduced |
| Rothschild Investment LLC | 377 | $11.0K | 0.00% | +337+842.5% | Added |
| Advisory Services Network, LLC | 380 | $11.1K | 0.00% | +380 | New |
| Smartleaf Asset Management LLC | 394 | $11.5K | 0.00% | +394 | New |
| Rise Advisors, LLC | 424 | $12.4K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 441 | $13.0K | 0.01% | −201−31.3% | Reduced |
| Bessemer Group Inc | 432 | $13.0K | 0.00% | 00.0% | Unchanged |
| Cloud Capital Management, LLC | 513 | $14.0K | 0.01% | +513 | New |
| Clearstead Advisors, LLC | 481 | $14.0K | 0.00% | +378+367.0% | Added |
| SBI Securities Co., Ltd. | 519 | $15.2K | 0.00% | +234+82.1% | Added |
| EverSource Wealth Advisors, LLC | 574 | $16.8K | 0.00% | −214−27.2% | Reduced |
| FNY Investment Advisers, LLC | 595 | $17.0K | 0.01% | +260+77.6% | Added |
| Hurley Capital, LLC | 603 | $17.6K | 0.01% | 00.0% | Unchanged |
| Signaturefd, LLC | 606 | $17.7K | 0.00% | −22−3.5% | Reduced |
| Allworth Financial LP | 678 | $19.8K | 0.00% | +184+37.2% | Added |
| Quadrant Capital Group LLC | 779 | $22.7K | 0.00% | +779 | New |
| Caitong International Asset Management Co., Ltd | 780 | $22.8K | 0.02% | +780 | New |
| Sound Income Strategies, LLC | 855 | $23.7K | 0.00% | +163+23.6% | Added |
| Hantz Financial Services, Inc. | 901 | $26.0K | 0.00% | +419+86.9% | Added |
| Parallel Advisors, LLC | 894 | $26.1K | 0.00% | +47+5.5% | Added |
| CoreCap Advisors, LLC | 900 | $26.3K | 0.00% | 00.0% | Unchanged |
| Quent Capital, LLC | 946 | $27.6K | 0.00% | +946 | New |
| Quarry LP | 975 | $28.5K | 0.01% | −523−34.9% | Reduced |
| Essential Partners LLC | 1,200 | $35.0K | 0.01% | +1,200 | New |
| Fifth Third Bancorp | 1,267 | $37.0K | 0.00% | +45+3.7% | Added |
| US Bancorp | 1,670 | $48.8K | 0.00% | +91+5.8% | Added |
| SRS Capital Advisors, Inc. | 1,841 | $53.8K | 0.00% | +1,367+288.4% | Added |
| Umb Bank N A | 1,861 | $54.3K | 0.00% | +26+1.4% | Added |
| TD Waterhouse Canada Inc. | 2,459 | $69.9K | 0.00% | −579−19.1% | Reduced |
| GWM Advisors LLC | 2,483 | $72.5K | 0.00% | +2,463+12,315.0% | Added |
| STRS Ohio | 2,943 | $85.9K | 0.00% | −26,179−89.9% | Reduced |
| Rockefeller Capital Management L.P. | 2,958 | $86.4K | 0.00% | +2,958 | New |
| Tower Research Capital LLC (TRC) | 3,026 | $88.4K | 0.00% | +1,025+51.2% | Added |
| GAMMA Investing LLC | 3,177 | $92.8K | 0.01% | +308+10.7% | Added |
| KBC Group NV | 3,694 | $108.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 3,945 | $115.2K | 0.00% | +1,735+78.5% | Added |
| Point72 Europe (London) LLP | 4,181 | $122.1K | 0.01% | +4,181 | New |
| Global Retirement Partners, LLC | 4,494 | $131.2K | 0.00% | +4,373+3,614.0% | Added |
| 1620 Investment Advisors, Inc. | 4,782 | $139.6K | 0.09% | −162−3.3% | Reduced |
| Quest Partners LLC | 5,074 | $148.2K | 0.01% | −2,684−34.6% | Reduced |
| Centaurus Financial, Inc. | 5,516 | $161.0K | 0.01% | +5,516 | New |
| Assetmark, Inc | 6,040 | $176.4K | 0.00% | −302−4.8% | Reduced |
| Canada Pension Plan Investment Board | 6,200 | $181.0K | 0.00% | +100+1.6% | Added |
| Advisor Group Holdings, Inc. | 6,165 | $189.0K | 0.00% | +574+10.3% | Added |
| Group One Trading, L.P. | 7,177 | $209.6K | 0.01% | −45,684−86.4% | Reduced |
| Sterling Capital Management LLC | 7,609 | $222.2K | 0.00% | −338−4.3% | Reduced |
| Public Employees Retirement Association of Colorado | 7,635 | $223.0K | 0.00% | 00.0% | Unchanged |
| Johnson Investment Counsel Inc | 7,659 | $223.6K | 0.00% | 00.0% | Unchanged |
| Sherman Porfolios, LLC | 7,698 | $224.8K | 0.08% | +7,698 | New |
| Simplex Trading, LLC | 8,391 | $245.0K | 0.01% | +8,391 | New |
| Semanteon Capital Management, LP | 8,504 | $248.3K | 0.31% | +8,504 | New |
| Mercer Global Advisors Inc | 8,525 | $248.9K | 0.00% | +8,525 | New |
| Profund Advisors LLC | 8,956 | $261.5K | 0.01% | +15+0.2% | Added |
| Two Sigma Securities, LLC | 9,263 | $270.5K | 0.04% | +9,263 | New |