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 2021
Institutional positions in Allegro Microsystems, Inc. as of Jun 30, 2021. 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
- 129
- +8 vs. Q1 2021
- Shares held
- 80.0M
- +3.88M (+5.1%) vs. Q1 2021
- Total value
- $2.22B
- +$286.3M (+14.8%) vs. Q1 2021
- New holders
- 34
- 53 more added
- Sold out
- 26
- 33 more reduced
2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Lindbrook Capital, LLC | 16 | $0 | 0.00% | −29−64.4% | Reduced |
| Quadrant Capital Group LLC | 11 | $0 | 0.00% | +11 | New |
| UBS Group AG | 45 | $1.00K | 0.00% | −19,374−99.8% | Reduced |
| US Bancorp | 42 | $1.00K | 0.00% | +42 | New |
| Berman Capital Advisors, LLC | 57 | $1.00K | 0.00% | +57 | New |
| FourThought Financial, LLC | 103 | $2.00K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 70 | $2.00K | 0.00% | +33+89.2% | Added |
| Meeder Asset Management Inc | 96 | $3.00K | 0.00% | −17,069−99.4% | Reduced |
| Howe & Rusling Inc | 96 | $3.00K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 282 | $8.00K | 0.00% | −16−5.4% | Reduced |
| Ellevest, Inc. | 330 | $9.00K | 0.00% | +330 | New |
| The PNC Financial Services Group, Inc. | 388 | $11.0K | 0.00% | +81+26.4% | Added |
| Simplex Trading, LLC | 663 | $18.0K | 0.00% | +548+476.5% | Added |
| JJJ Advisors Inc. | 748 | $21.0K | 0.01% | +552+281.6% | Added |
| Vigilant Capital Management, LLC | 1,100 | $30.0K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 1,086 | $30.0K | 0.00% | +330+43.7% | Added |
| Group One Trading, L.P. | 1,300 | $36.0K | 0.00% | −459−26.1% | Reduced |
| Private Capital Group, LLC | 1,925 | $53.0K | 0.01% | +1,925 | New |
| FMR LLC | 2,937 | $82.0K | 0.00% | −7,041−70.6% | Reduced |
| Tower Research Capital LLC (TRC) | 3,100 | $85.0K | 0.00% | +2,358+317.8% | Added |
| Exchange Traded Concepts, LLC | 3,087 | $86.0K | 0.00% | +514+20.0% | Added |
| Metropolitan Life Insurance Co | 3,558 | $98.6K | 0.00% | +1,614+83.0% | Added |
| Shell Asset Management Co | 3,743 | $104.0K | 0.00% | +3,743 | New |
| Advisor Group Holdings, Inc. | 4,398 | $123.0K | 0.00% | −5,923−57.4% | Reduced |
| Panagora Asset Management Inc | 4,720 | $131.0K | 0.00% | +268+6.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,300 | $147.0K | 0.00% | +5,300 | New |
| Teacher Retirement System of Texas | 7,314 | $203.0K | 0.00% | +7,314 | New |
| Oppenheimer Asset Management Inc. | 9,241 | $256.0K | 0.00% | +9,241 | New |
| Holocene Advisors, LP | 9,290 | $257.0K | 0.00% | +9,290 | New |
| HSBC Holdings PLC | 9,352 | $259.0K | 0.00% | +9,352 | New |
| Victory Capital Management Inc | 9,560 | $265.0K | 0.00% | +9,560 | New |
| Wellington Management Group LLP | 9,794 | $271.0K | 0.00% | +9,794 | New |
| Amalgamated Bank | 9,869 | $273.0K | 0.00% | +9,869 | New |
| Russell Investments Group, Ltd. | 10,288 | $284.0K | 0.00% | −50,412−83.1% | Reduced |
| Two Sigma Investments, LP | 11,400 | $316.0K | 0.00% | −19,876−63.6% | Reduced |
| Trexquant Investment LP | 11,546 | $320.0K | 0.03% | +11,546 | New |
| Pathstone Family Office, LLC | 11,676 | $323.0K | 0.01% | +11,676 | New |
| Royal Bank of Canada | 11,848 | $328.0K | 0.00% | +7,270+158.8% | Added |
| DuPont Capital Management Corp | 12,603 | $349.0K | 0.01% | 00.0% | Unchanged |
| Belvedere Trading LLC | 14,156 | $368.0K | 0.15% | +14,156 | New |
| Handelsbanken Fonder AB | 13,700 | $379.0K | 0.00% | +13,700 | New |
| Voloridge Investment Management, LLC | 15,345 | $425.0K | 0.00% | +15,345 | New |
| M&T Bank Corp | 15,482 | $428.0K | 0.00% | +148+1.0% | Added |
| Arizona State Retirement System | 15,448 | $428.0K | 0.00% | +15,448 | New |
| Donoghue Forlines LLC | 15,528 | $430.0K | 0.08% | +2,328+17.6% | Added |
| Voya Investment Management LLC | 16,569 | $459.0K | 0.00% | +6,312+61.5% | Added |
| Quantbot Technologies LP | 17,247 | $477.0K | 0.04% | +17,247 | New |
| Woodline Partners LP | 17,543 | $486.0K | 0.01% | −35,128−66.7% | Reduced |
| Treasurer of the State of North Carolina | 17,880 | $495.0K | 0.00% | +860+5.1% | Added |
| Avidian Wealth Solutions, LLC | 18,000 | $499.0K | 0.04% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 19,154 | $531.0K | 0.05% | +19,154 | New |
| Paloma Partners Management Co | 20,021 | $555.0K | 0.01% | +20,021 | New |
| Hillsdale Investment Management Inc. | 21,800 | $603.0K | 0.05% | +21,800 | New |
| Jacobs Levy Equity Management, Inc | 21,799 | $604.0K | 0.00% | +21,799 | New |
| Citadel Advisors LLC | 23,777 | $659.0K | 0.00% | +15,791+197.7% | Added |
| Public Employees Retirement System of Ohio | 29,329 | $812.0K | 0.00% | +4,677+19.0% | Added |
| Man Group plc | 30,520 | $845.0K | 0.00% | −8,506−21.8% | Reduced |
| Legal & General Group Plc | 32,321 | $896.0K | 0.00% | +27,919+634.2% | Added |
| Allstate Corp | 33,638 | $932.0K | 0.03% | +1,175+3.6% | Added |
| Citigroup Inc | 33,745 | $935.0K | 0.00% | +27,027+402.3% | Added |
| D. E. Shaw & Co., Inc. | 34,267 | $949.0K | 0.00% | +34,267 | New |
| Envestnet Asset Management Inc | 34,886 | $966.0K | 0.00% | +7,204+26.0% | Added |
| Twinbeech Capital LP | 34,893 | $967.0K | 0.12% | +34,893 | New |
| Cna Financial Corp | 35,049 | $971.0K | 0.27% | −2,660−7.1% | Reduced |
| Parametric Portfolio Associates LLC | 37,268 | $1.03M | 0.00% | −1,059−2.8% | Reduced |
| Raymond James & Associates | 37,304 | $1.03M | 0.00% | +6,521+21.2% | Added |
| Cubist Systematic Strategies, LLC | 39,164 | $1.08M | 0.01% | −32,634−45.5% | Reduced |
| Occudo Quantitative Strategies LP | 42,143 | $1.17M | 0.18% | +42,143 | New |
| Deutsche Bank AG | 42,177 | $1.17M | 0.00% | +40,368+2,231.5% | Added |
| Credit Suisse AG | 42,721 | $1.18M | 0.00% | −5,793−11.9% | Reduced |
| SEI Investments Co | 44,587 | $1.24M | 0.00% | +25,592+134.7% | Added |
| Needham Investment Management LLC | 44,873 | $1.24M | 0.18% | −131,280−74.5% | Reduced |
| Rhumbline Advisers | 44,931 | $1.25M | 0.00% | +7,412+19.8% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 51,309 | $1.42M | 0.00% | +8,354+19.4% | Added |
| Marshall Wace, LLP | 52,047 | $1.44M | 0.01% | −66,297−56.0% | Reduced |
| New York State Common Retirement Fund | 54,300 | $1.50M | 0.00% | +4,000+8.0% | Added |
| UBS Asset Management Americas Inc | 60,764 | $1.68M | 0.00% | +44,427+271.9% | Added |
| Qube Research & Technologies Ltd | 71,524 | $1.98M | 0.02% | +2,302+3.3% | Added |
| Lazard Asset Management LLC | 78,007 | $2.16M | 0.00% | +35,052+81.6% | Added |
| Penn Capital Management Co Inc | 80,070 | $2.22M | 0.22% | +8,446+11.8% | Added |
| Marshall Wace North America L.P. | 80,926 | $2.24M | 0.01% | −152,449−65.3% | Reduced |
| Engineers Gate Manager LP | 85,678 | $2.37M | 0.15% | +85,678 | New |
| Zweig-DiMenna Associates LLC | 87,323 | $2.42M | 0.15% | +87,323 | New |
| Scopus Asset Management, L.P. | 88,219 | $2.44M | 0.04% | −129,143−59.4% | Reduced |
| California State Teachers Retirement System | 89,328 | $2.47M | 0.00% | +7,038+8.6% | Added |
| Arosa Capital Management LP | 95,400 | $2.64M | 0.94% | −120,000−55.7% | Reduced |
| Los Angeles Capital Management LLC | 99,699 | $2.76M | 0.01% | +80,154+410.1% | Added |
| Millennium Management LLC | 101,669 | $2.82M | 0.00% | −86,966−46.1% | Reduced |
| Pentwater Capital Management LP | 105,521 | $2.92M | 0.03% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 105,711 | $2.93M | 0.02% | +711+0.7% | Added |
| Trillium Asset Management, LLC | 122,074 | $3.38M | 0.09% | +122,074 | New |
| Swiss National Bank | 125,300 | $3.47M | 0.00% | +125,300 | New |
| Bank of New York Mellon Corp | 144,607 | $4.00M | 0.00% | +40,390+38.8% | Added |
| Arrowstreet Capital, Limited Partnership | 169,925 | $4.71M | 0.01% | −35,759−17.4% | Reduced |
| Next Century Growth Investors LLC | 180,840 | $5.01M | 0.39% | −24,519−11.9% | Reduced |
| Ameriprise Financial Inc | 182,718 | $5.06M | 0.00% | +55,991+44.2% | Added |
| Norges Bank | 187,357 | $5.19M | 0.00% | +12,357+7.1% | Added |
| Nuveen Asset Management, LLC | 222,709 | $6.17M | 0.00% | +62,868+39.3% | Added |
| S Squared Technology, LLC | 242,451 | $6.72M | 3.04% | +50,000+26.0% | Added |
| Northern Trust Corp | 254,654 | $7.05M | 0.00% | +23,377+10.1% | Added |