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 2026
Institutional positions in Allegro Microsystems, Inc. as of Jun 30, 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
- 375
- +58 vs. Q1 2026
- Shares held
- 148.2M
- +9.97M (+7.2%) vs. Q1 2026
- Total value
- $10.2B
- +$5.91B (+136.7%) vs. Q1 2026
- New holders
- 101
- 117 more added
- Sold out
- 43
- 107 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisory Services Network, LLC | 7,739 | $538.8K | 0.01% | +7,345+1,864.2% | Added |
| Atria Investments LLC | 7,695 | $535.7K | 0.01% | +7,695 | New |
| Public Employees Retirement Association of Colorado | 7,635 | $532.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 7,234 | $503.6K | 0.00% | +4,849+203.3% | Added |
| Meridian Wealth Management, LLC | 6,950 | $483.9K | 0.01% | +6,950 | New |
| Engineers Gate Manager LP | 6,942 | $483.3K | 0.01% | −29,599−81.0% | Reduced |
| DnB Asset Management AS | 6,923 | $482.0K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 6,799 | $473.3K | 0.00% | +426+6.7% | Added |
| Maryland State Retirement & Pension System | 6,797 | $473.2K | 0.01% | 00.0% | Unchanged |
| Axxion S.A. | 6,702 | $466.6K | 0.03% | +6,702 | New |
| Everence Capital Management Inc | 6,590 | $459.0K | 0.02% | 00.0% | Unchanged |
| Utah Retirement Systems | 6,505 | $452.9K | 0.00% | 00.0% | Unchanged |
| Whalen Wealth Management Inc. | 6,399 | $445.5K | 0.20% | +6,399 | New |
| Ensign Peak Advisors, Inc | 6,366 | $443.2K | 0.00% | 00.0% | Unchanged |
| Mount Yale Investment Advisors, LLC | 6,340 | $441.4K | 0.01% | −1,350−17.6% | Reduced |
| Assetmark, Inc | 6,307 | $439.1K | 0.00% | −31−0.5% | Reduced |
| HighTower Advisors, LLC | 6,233 | $433.9K | 0.00% | +6,233 | New |
| O'Shaughnessy Asset Management, LLC | 6,147 | $428.0K | 0.00% | +6,147 | New |
| Securian Asset Management, Inc | 9,150 | $425.3K | 0.02% | 00.0% | Unchanged |
| SEB Asset Management AB | 5,865 | $408.3K | 0.00% | −1,933−24.8% | Reduced |
| Belvedere Trading LLC | 5,764 | $401.3K | 0.03% | +5,764 | New |
| CIBC Asset Management Inc | 5,725 | $398.6K | 0.00% | +5,725 | New |
| PFG Investments, LLC | 5,680 | $395.4K | 0.02% | +5,680 | New |
| Acadian Asset Management LLC | 5,615 | $389.0K | 0.00% | −8,266−59.5% | Reduced |
| M&T Bank Corp | 5,416 | $377.1K | 0.00% | +5,416 | New |
| Hantz Financial Services, Inc. | 5,262 | $366.0K | 0.00% | +544+11.5% | Added |
| Crossmark Global Holdings, Inc. | 5,238 | $364.7K | 0.00% | +5,238 | New |
| Ground Swell Capital, LLC | 5,197 | $361.8K | 0.39% | +5,197 | New |
| Jane Street Group, LLC | 5,136 | $357.6K | 0.00% | −10,343−66.8% | Reduced |
| Archford Capital Strategies, LLC | 5,001 | $348.2K | 0.04% | +5,001 | New |
| Freestone Grove Partners LP | 4,859 | $338.3K | 0.00% | −1,574−24.5% | Reduced |
| Brighton Jones LLC | 4,775 | $332.5K | 0.01% | +4,775 | New |
| Dynasty Wealth Management, LLC | 4,704 | $327.5K | 0.00% | +4,704 | New |
| Sanctuary Advisors, LLC | 4,698 | $327.1K | 0.00% | +4,698 | New |
| Coldstream Capital Management Inc | 4,695 | $326.9K | 0.00% | +4,695 | New |
| Fulton Bank, N.A. | 4,623 | $321.9K | 0.01% | +4,623 | New |
| KBC Group NV | 4,581 | $319.0K | 0.00% | 00.0% | Unchanged |
| Vise Technologies, Inc. | 4,496 | $313.0K | 0.00% | +4,496 | New |
| Integrated Wealth Concepts LLC | 4,365 | $303.9K | 0.00% | −13,026−74.9% | Reduced |
| Meeder Advisory Services, Inc. | 4,159 | $289.6K | 0.01% | +4,159 | New |
| Frec Markets, Inc. | 4,153 | $289.1K | 0.03% | +4,153 | New |
| Global Retirement Partners, LLC | 4,149 | $288.9K | 0.00% | +4,149 | New |
| Callan Family Office, LLC | 4,138 | $288.1K | 0.01% | +4,138 | New |
| Shelton Capital Management | 4,135 | $287.9K | 0.01% | +4,135 | New |
| Odyssean, LLC | 4,034 | $280.8K | 0.05% | +4,034 | New |
| Perigon Wealth Management, LLC | 3,916 | $272.6K | 0.00% | +3,916 | New |
| Aviva PLC | 3,891 | $270.9K | 0.00% | +3,891 | New |
| Nykredit A/S | 3,787 | $263.7K | 0.00% | +3,787 | New |
| Los Angeles Capital Management LLC | 3,752 | $261.2K | 0.00% | +2,506+201.1% | Added |
| North Dakota State Investment Board | 3,689 | $256.8K | 0.01% | +3,689 | New |
| Fiduciary Trust Co | 3,614 | $251.6K | 0.00% | +3,614 | New |
| Graham Capital Management, L.P. | 3,605 | $251.0K | 0.01% | −13,351−78.7% | Reduced |
| GAMMA Investing LLC | 3,545 | $246.8K | 0.01% | +177+5.3% | Added |
| Nisa Investment Advisors, LLC | 3,545 | $246.8K | 0.00% | +996+39.1% | Added |
| Gsa Capital Partners LLP | 3,533 | $246.0K | 0.02% | −43,234−92.4% | Reduced |
| Group One Trading, L.P. | 3,468 | $241.4K | 0.01% | −5,946−63.2% | Reduced |
| Prelude Capital Management, LLC | 3,430 | $238.8K | 0.02% | +3,430 | New |
| United Capital Financial Advisers, LLC | 3,414 | $237.7K | 0.00% | +3,414 | New |
| Claret Asset Management Corp | 3,399 | $237.0K | 0.03% | −3,296−49.2% | Reduced |
| Larson Financial Group LLC | 3,357 | $233.7K | 0.01% | −582−14.8% | Reduced |
| Ritholtz Wealth Management | 3,254 | $226.5K | 0.00% | +3,254 | New |
| XTX Topco Ltd | 3,192 | $222.2K | 0.00% | −65,375−95.3% | Reduced |
| Catalytic Wealth RIA, LLC | 3,085 | $214.8K | 0.01% | +3,085 | New |
| Fifth Third Wealth Advisors LLC | 3,073 | $213.9K | 0.01% | +3,073 | New |
| Seascape Capital Management | 3,028 | $211.0K | 0.05% | +3,028 | New |
| Teza Capital Management LLC | 3,019 | $210.2K | 0.41% | +3,019 | New |
| Lido Advisors, LLC | 2,991 | $208.3K | 0.00% | +2,991 | New |
| Verdence Capital Advisors LLC | 2,929 | $203.9K | 0.01% | +2,929 | New |
| HB Wealth Management, LLC | 2,929 | $203.9K | 0.00% | +2,929 | New |
| Brinker Capital Investments, LLC | 2,918 | $203.2K | 0.00% | +2,918 | New |
| Merit Financial Group, LLC | 2,907 | $202.4K | 0.00% | +2,907 | New |
| Argent Trust Co | 2,877 | $200.3K | 0.01% | +2,877 | New |
| Meiji Yasuda Asset Management Co Ltd. | 2,873 | $200.0K | 0.01% | +2,873 | New |
| Farther Finance Advisors, LLC | 2,778 | $192.1K | 0.00% | +593+27.1% | Added |
| Clear Street Markets LLC | 2,633 | $183.3K | 0.04% | +2,633 | New |
| US Bancorp | 2,625 | $182.8K | 0.00% | +562+27.2% | Added |
| STRS Ohio | 2,614 | $182.0K | 0.00% | −330−11.2% | Reduced |
| Walleye Capital LLC | 2,595 | $180.7K | 0.00% | −128,073−98.0% | Reduced |
| GWM Advisors LLC | 2,414 | $168.1K | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 2,459 | $155.4K | 0.00% | 00.0% | Unchanged |
| NCP Inc. | 2,100 | $146.2K | 0.20% | +2,100 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,937 | $134.9K | 0.00% | −245−11.2% | Reduced |
| 1620 Investment Advisors, Inc. | 1,839 | $128.0K | 0.08% | −1,576−46.1% | Reduced |
| Umb Bank N A | 1,794 | $124.9K | 0.00% | +28+1.6% | Added |
| SBI Securities Co., Ltd. | 1,754 | $122.1K | 0.00% | −73−4.0% | Reduced |
| Exchange Traded Concepts, LLC | 1,748 | $121.7K | 0.00% | +838+92.1% | Added |
| Allworth Financial LP | 1,517 | $105.6K | 0.00% | +172+12.8% | Added |
| Quantbot Technologies LP | 1,284 | $89.4K | 0.00% | −1,146−47.2% | Reduced |
| Quent Capital, LLC | 1,146 | $79.8K | 0.00% | −200−14.9% | Reduced |
| Harbor Investment Advisory, LLC | 1,032 | $71.8K | 0.01% | +1,032 | New |
| CoreCap Advisors, LLC | 1,000 | $69.6K | 0.00% | +100+11.1% | Added |
| Parallel Advisors, LLC | 964 | $67.1K | 0.00% | −44−4.4% | Reduced |
| Quadrant Capital Group LLC | 890 | $62.0K | 0.00% | −207−18.9% | Reduced |
| Sterling Capital Management LLC | 818 | $56.9K | 0.00% | −3,311−80.2% | Reduced |
| Hurley Capital, LLC | 756 | $52.6K | 0.03% | 00.0% | Unchanged |
| Signaturefd, LLC | 707 | $49.2K | 0.00% | +13+1.9% | Added |
| First National Bank | 700 | $48.7K | 0.02% | +700 | New |
| Global X Japan Co., Ltd. | 674 | $46.9K | 0.00% | +182+37.0% | Added |
| Bessemer Group Inc | 579 | $41.0K | 0.00% | +70+13.8% | Added |
| Rothschild Investment LLC | 582 | $40.5K | 0.00% | +4+0.7% | Added |