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, Q4 2021
Institutional positions in Allegro Microsystems, Inc. as of Dec 31, 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
- 165
- +14 vs. Q3 2021
- Shares held
- 88.0M
- +3.30M (+3.9%) vs. Q3 2021
- Total value
- $3.18B
- +$475.9M (+17.6%) vs. Q3 2021
- New holders
- 38
- 67 more added
- Sold out
- 24
- 45 more reduced
2 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Oep Capital Advisors, L.P. | 22,629,247 | $818.7M | 70.78% | −8,625,000−27.6% | Reduced |
| Vanguard Group Inc | 6,235,522 | $225.6M | 0.01% | +774,097+14.2% | Added |
| Allspring Global Investments Holdings, LLC | 4,546,844 | $164.5M | 0.18% | +4,546,844 | New |
| Invesco Ltd. | 3,982,122 | $144.1M | 0.03% | +179,957+4.7% | Added |
| FMR LLC | 3,841,816 | $139.0M | 0.01% | +3,752,219+4,187.9% | Added |
| JPMorgan Chase & Co | 3,594,298 | $130.0M | 0.02% | +289,609+8.8% | Added |
| Clearbridge Investments, LLC | 3,397,910 | $122.9M | 0.08% | +3,423+0.1% | Added |
| Alliancebernstein L.P. | 3,127,839 | $113.2M | 0.04% | −513,095−14.1% | Reduced |
| Artisan Partners Limited Partnership | 2,628,245 | $95.1M | 0.11% | +2,628,245 | New |
| Macquarie Group Ltd | 2,472,006 | $89.4M | 0.07% | −22,524−0.9% | Reduced |
| State Street Corp | 2,379,827 | $86.1M | 0.00% | +636,901+36.5% | Added |
| TimesSquare Capital Management, LLC | 2,006,527 | $72.6M | 0.64% | +718,517+55.8% | Added |
| BlackRock Inc. | 1,878,470 | $68.0M | 0.00% | −4,488−0.2% | Reduced |
| Principal Financial Group Inc | 1,804,986 | $65.3M | 0.04% | +23,104+1.3% | Added |
| First Trust Advisors LP | 1,760,351 | $63.7M | 0.06% | +293,258+20.0% | Added |
| Shelter Haven Capital Management, L.P. | 1,585,864 | $57.4M | 16.33% | +548,078+52.8% | Added |
| Franklin Resources Inc | 1,511,559 | $54.7M | 0.02% | −469,561−23.7% | Reduced |
| Federated Hermes, Inc. | 1,485,515 | $53.7M | 0.10% | +35,515+2.4% | Added |
| Goldman Sachs Group Inc | 1,481,881 | $53.6M | 0.01% | −38,550−2.5% | Reduced |
| Parsifal Capital Management, LP | 1,337,806 | $48.4M | 3.62% | +1,337,806 | New |
| Adage Capital Partners GP, L.L.C. | 1,255,354 | $45.4M | 0.08% | +521,881+71.2% | Added |
| Schroder Investment Management Group | 1,186,891 | $42.9M | 0.06% | +95,949+8.8% | Added |
| Geode Capital Management, LLC | 892,151 | $32.3M | 0.00% | +115,320+14.8% | Added |
| Bamco Inc | 778,795 | $28.2M | 0.06% | 00.0% | Unchanged |
| Morgan Stanley | 712,838 | $25.8M | 0.00% | +123,333+20.9% | Added |
| Wells Fargo & Company | 594,240 | $21.5M | 0.01% | −4,310,307−87.9% | Reduced |
| ArrowMark Colorado Holdings LLC | 467,159 | $16.9M | 0.14% | −19,376−4.0% | Reduced |
| Charles Schwab Investment Management Inc | 424,454 | $15.4M | 0.00% | +9,947+2.4% | Added |
| DekaBank Deutsche Girozentrale | 400,000 | $14.2M | 0.03% | +250,000+166.7% | Added |
| Thrivent Financial for Lutherans | 385,117 | $13.9M | 0.03% | +385,117 | New |
| Pier Capital, LLC | 357,507 | $12.9M | 1.36% | +124,187+53.2% | Added |
| Bank of America Corp | 351,532 | $12.7M | 0.00% | +4,109+1.2% | Added |
| Islet Management, LP | 350,000 | $12.7M | 0.70% | +350,000 | New |
| New York State Common Retirement Fund | 317,701 | $11.5M | 0.01% | +273,401+617.2% | Added |
| S Squared Technology, LLC | 282,451 | $10.2M | 4.57% | +50,000+21.5% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 225,607 | $8.21M | 0.03% | −76,295−25.3% | Reduced |
| Northern Trust Corp | 220,784 | $7.99M | 0.00% | +7,773+3.6% | Added |
| Agf Investments Inc. | 215,000 | $7.78M | 0.06% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 209,071 | $7.56M | 0.01% | −55,308−20.9% | Reduced |
| Great Lakes Advisors, LLC | 208,711 | $7.55M | 0.11% | +170.0% | Added |
| Victory Capital Management Inc | 201,536 | $7.29M | 0.01% | +126,640+169.1% | Added |
| Bank of New York Mellon Corp | 183,024 | $6.62M | 0.00% | −4,148−2.2% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 174,205 | $6.30M | 0.01% | +167,282+2,416.3% | Added |
| SEI Investments Co | 162,224 | $5.86M | 0.01% | +119,485+279.6% | Added |
| D. E. Shaw & Co., Inc. | 155,810 | $5.64M | 0.01% | +6,557+4.4% | Added |
| Trillium Asset Management, LLC | 155,467 | $5.63M | 0.13% | +15,202+10.8% | Added |
| Next Century Growth Investors LLC | 153,122 | $5.54M | 0.50% | −7,321−4.6% | Reduced |
| Ameriprise Financial Inc | 152,204 | $5.51M | 0.00% | +15,700+11.5% | Added |
| Norges Bank | 146,834 | $5.31M | 0.00% | +32,300+28.2% | Added |
| Tocqueville Asset Management L.P. | 137,640 | $4.98M | 0.07% | −26,340−16.1% | Reduced |
| Arosa Capital Management LP | 135,400 | $4.90M | 1.79% | +40,000+41.9% | Added |
| Balyasny Asset Management LLC | 131,587 | $4.76M | 0.02% | −197,885−60.1% | Reduced |
| Swiss National Bank | 125,300 | $4.53M | 0.00% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 119,962 | $3.94M | 0.00% | −16,344−12.0% | Reduced |
| Penn Capital Management Co Inc | 95,218 | $3.37M | 0.34% | +8,618+10.0% | Added |
| Verition Fund Management LLC | 90,494 | $3.27M | 0.04% | +90,494 | New |
| ExodusPoint Capital Management, LP | 84,744 | $3.07M | 0.04% | +84,744 | New |
| Aviva PLC | 77,120 | $2.79M | 0.01% | +22,802+42.0% | Added |
| UBS Asset Management Americas Inc | 76,271 | $2.76M | 0.00% | +1,727+2.3% | Added |
| Alps Advisors Inc | 71,123 | $2.57M | 0.03% | −9,057−11.3% | Reduced |
| California State Teachers Retirement System | 69,892 | $2.53M | 0.00% | −11,666−14.3% | Reduced |
| Susquehanna International Group, LLP | 69,593 | $2.52M | 0.00% | +49,819+251.9% | Added |
| Los Angeles Capital Management LLC | 64,403 | $2.33M | 0.01% | +33+0.1% | Added |
| Ergoteles LLC | 56,953 | $2.06M | 0.08% | +56,953 | New |
| Pendal Group Limited | 52,377 | $1.90M | 0.02% | +52,377 | New |
| Old Mission Capital LLC | 51,992 | $1.88M | 0.09% | +39,657+321.5% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 51,309 | $1.86M | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 51,309 | $1.86M | 0.00% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 50,121 | $1.81M | 0.00% | −35,403−41.4% | Reduced |
| Man Group plc | 46,231 | $1.67M | 0.01% | +9,266+25.1% | Added |
| Pentwater Capital Management LP | 42,700 | $1.54M | 0.02% | −27,300−39.0% | Reduced |
| Legal & General Group Plc | 41,185 | $1.49M | 0.00% | +41+0.1% | Added |
| State of Alaska, Department of Revenue | 40,760 | $1.47M | 0.01% | +40,760 | New |
| Raymond James & Associates | 40,488 | $1.47M | 0.00% | +1,886+4.9% | Added |
| Envestnet Asset Management Inc | 39,491 | $1.43M | 0.00% | +1,110+2.9% | Added |
| Rhumbline Advisers | 39,426 | $1.43M | 0.00% | −1,668−4.1% | Reduced |
| PFS Investments Inc. | 38,076 | $1.38M | 0.03% | +6,356+20.0% | Added |
| BIT Capital GmbH | 38,042 | $1.38M | 0.11% | +38,042 | New |
| Citigroup Inc | 37,192 | $1.35M | 0.00% | −6,164−14.2% | Reduced |
| Millennium Management LLC | 36,161 | $1.31M | 0.00% | −261,511−87.9% | Reduced |
| Marshall Wace, LLP | 35,734 | $1.29M | 0.00% | +35,734 | New |
| Credit Suisse AG | 35,286 | $1.28M | 0.00% | −7,363−17.3% | Reduced |
| Stifel Financial Corp | 33,224 | $1.20M | 0.00% | +33,224 | New |
| Cubist Systematic Strategies, LLC | 32,880 | $1.19M | 0.01% | −79,321−70.7% | Reduced |
| Deutsche Bank AG | 32,035 | $1.16M | 0.00% | +26,832+515.7% | Added |
| Allstate Corp | 31,445 | $1.14M | 0.02% | −2,193−6.5% | Reduced |
| Cna Financial Corp | 29,269 | $1.06M | 0.28% | −2,020−6.5% | Reduced |
| Infini Master Fund | 23,613 | $854.0K | 2.17% | +23,613 | New |
| Infini Capital Management Ltd | 23,613 | $854.0K | 2.17% | +23,613 | New |
| Voloridge Investment Management, LLC | 21,870 | $791.0K | 0.00% | +6,713+44.3% | Added |
| Public Employees Retirement System of Ohio | 21,615 | $782.0K | 0.00% | −794−3.5% | Reduced |
| Russell Investments Group, Ltd. | 20,500 | $741.0K | 0.00% | +8,542+71.4% | Added |
| Polar Capital Holdings Plc | 20,033 | $725.0K | 0.00% | +20,033 | New |
| Voya Investment Management LLC | 20,007 | $724.0K | 0.00% | +7,323+57.7% | Added |
| Toth Financial Advisory Corp | 18,400 | $666.0K | 0.09% | 00.0% | Unchanged |
| Trexquant Investment LP | 18,294 | $662.0K | 0.04% | +4,472+32.4% | Added |
| Avidian Wealth Solutions, LLC | 18,000 | $651.0K | 0.04% | 00.0% | Unchanged |
| PDT Partners, LLC | 17,348 | $628.0K | 0.05% | +17,348 | New |
| Advisory Research Inc | 17,183 | $622.0K | 0.05% | +8,621+100.7% | Added |
| Sigma Planning Corp | 15,711 | $568.0K | 0.02% | +15,711 | New |