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 2021
Institutional positions in Allegro Microsystems, Inc. as of Sep 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
- 153
- +24 vs. Q2 2021
- Shares held
- 84.7M
- +4.66M (+5.8%) vs. Q2 2021
- Total value
- $2.71B
- +$490.2M (+22.1%) vs. Q2 2021
- New holders
- 34
- 54 more added
- Sold out
- 10
- 52 more reduced
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Oep Capital Advisors, L.P. | 31,254,247 | $998.9M | 75.63% | 00.0% | Unchanged |
| Vanguard Group Inc | 5,461,425 | $174.5M | 0.00% | +269,788+5.2% | Added |
| Wells Fargo & Company | 4,904,547 | $156.8M | 0.04% | +1,212,621+32.8% | Added |
| Invesco Ltd. | 3,802,165 | $121.5M | 0.03% | +618,266+19.4% | Added |
| Alliancebernstein L.P. | 3,640,934 | $116.4M | 0.05% | +165,689+4.8% | Added |
| Clearbridge Investments, LLC | 3,394,487 | $108.5M | 0.08% | −8,515−0.3% | Reduced |
| JPMorgan Chase & Co | 3,304,689 | $105.6M | 0.01% | −119,704−3.5% | Reduced |
| Macquarie Group Ltd | 2,494,530 | $79.7M | 0.07% | +314,108+14.4% | Added |
| Franklin Resources Inc | 1,981,120 | $63.3M | 0.02% | −209,058−9.5% | Reduced |
| BlackRock Inc. | 1,882,958 | $60.2M | 0.00% | −93,998−4.8% | Reduced |
| Principal Financial Group Inc | 1,781,882 | $56.9M | 0.04% | +56,275+3.3% | Added |
| State Street Corp | 1,742,926 | $55.7M | 0.00% | −127,074−6.8% | Reduced |
| Goldman Sachs Group Inc | 1,520,431 | $48.6M | 0.01% | +205,313+15.6% | Added |
| First Trust Advisors LP | 1,467,093 | $46.9M | 0.05% | +1,467,093 | New |
| Federated Hermes, Inc. | 1,450,000 | $46.3M | 0.09% | 00.0% | Unchanged |
| TimesSquare Capital Management, LLC | 1,288,010 | $41.2M | 0.36% | −562,100−30.4% | Reduced |
| Schroder Investment Management Group | 1,090,942 | $34.9M | 0.06% | −3,931−0.4% | Reduced |
| Shelter Haven Capital Management, L.P. | 1,037,786 | $33.2M | 10.54% | −229,090−18.1% | Reduced |
| Bamco Inc | 778,795 | $24.9M | 0.06% | −96,205−11.0% | Reduced |
| Geode Capital Management, LLC | 776,831 | $24.8M | 0.00% | +121,101+18.5% | Added |
| Adage Capital Partners GP, L.L.C. | 733,473 | $23.4M | 0.05% | +254,506+53.1% | Added |
| Morgan Stanley | 589,505 | $18.8M | 0.00% | +320,782+119.4% | Added |
| ArrowMark Colorado Holdings LLC | 486,535 | $15.6M | 0.12% | −168,675−25.7% | Reduced |
| Charles Schwab Investment Management Inc | 414,507 | $13.2M | 0.00% | +119,604+40.6% | Added |
| American Century Companies Inc | 354,130 | $11.3M | 0.01% | +74,890+26.8% | Added |
| Bank of America Corp | 347,423 | $11.1M | 0.00% | +76,499+28.2% | Added |
| Balyasny Asset Management LLC | 329,472 | $10.5M | 0.05% | +329,472 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 301,902 | $9.65M | 0.05% | −56,148−15.7% | Reduced |
| Millennium Management LLC | 297,672 | $9.51M | 0.01% | +196,003+192.8% | Added |
| Arrowstreet Capital, Limited Partnership | 264,379 | $8.45M | 0.01% | +94,454+55.6% | Added |
| FengHe Fund Management Pte. Ltd. | 259,000 | $8.28M | 7.25% | +259,000 | New |
| Pier Capital, LLC | 233,320 | $7.46M | 0.77% | −158,654−40.5% | Reduced |
| S Squared Technology, LLC | 232,451 | $7.43M | 3.37% | −10,000−4.1% | Reduced |
| Agf Investments Inc. | 215,000 | $6.87M | 0.05% | +215,000 | New |
| Northern Trust Corp | 213,011 | $6.81M | 0.00% | −41,643−16.4% | Reduced |
| Great Lakes Advisors, LLC | 208,694 | $6.67M | 0.10% | +208,694 | New |
| Bank of New York Mellon Corp | 187,172 | $5.98M | 0.00% | +42,565+29.4% | Added |
| Tocqueville Asset Management L.P. | 163,980 | $5.24M | 0.08% | −107,395−39.6% | Reduced |
| Next Century Growth Investors LLC | 160,443 | $5.13M | 0.44% | −20,397−11.3% | Reduced |
| D. E. Shaw & Co., Inc. | 149,253 | $4.77M | 0.01% | +114,986+335.6% | Added |
| DekaBank Deutsche Girozentrale | 150,000 | $4.77M | 0.01% | +150,000 | New |
| Nuveen Asset Management, LLC | 136,306 | $4.71M | 0.00% | −86,403−38.8% | Reduced |
| Trillium Asset Management, LLC | 140,265 | $4.48M | 0.12% | +18,191+14.9% | Added |
| Squarepoint Ops LLC | 139,288 | $4.45M | 0.03% | +33,577+31.8% | Added |
| Ameriprise Financial Inc | 136,504 | $4.36M | 0.00% | −46,214−25.3% | Reduced |
| Jane Street Group, LLC | 133,175 | $4.26M | 0.01% | +133,175 | New |
| Swiss National Bank | 125,300 | $4.00M | 0.00% | 00.0% | Unchanged |
| Norges Bank | 114,534 | $3.66M | 0.00% | −72,823−38.9% | Reduced |
| Cubist Systematic Strategies, LLC | 112,201 | $3.59M | 0.05% | +73,037+186.5% | Added |
| Arosa Capital Management LP | 95,400 | $3.05M | 1.08% | 00.0% | Unchanged |
| FMR LLC | 89,597 | $2.86M | 0.00% | +86,660+2,950.6% | Added |
| Penn Capital Management Co Inc | 86,600 | $2.77M | 0.28% | +6,530+8.2% | Added |
| Parametric Portfolio Associates LLC | 85,524 | $2.73M | 0.00% | +48,256+129.5% | Added |
| California State Teachers Retirement System | 81,558 | $2.61M | 0.00% | −7,770−8.7% | Reduced |
| Alps Advisors Inc | 80,180 | $2.56M | 0.02% | +80,180 | New |
| Victory Capital Management Inc | 74,896 | $2.39M | 0.00% | +65,336+683.4% | Added |
| UBS Asset Management Americas Inc | 74,544 | $2.38M | 0.00% | +13,780+22.7% | Added |
| Pentwater Capital Management LP | 70,000 | $2.24M | 0.03% | −35,521−33.7% | Reduced |
| Natixis | 69,487 | $2.22M | 0.01% | +69,487 | New |
| Los Angeles Capital Management LLC | 64,370 | $2.06M | 0.01% | −35,329−35.4% | Reduced |
| EAM Investors, LLC | 57,237 | $1.83M | 0.31% | +57,237 | New |
| Aviva PLC | 54,318 | $1.74M | 0.01% | +54,318 | New |
| Sumitomo Mitsui Trust Holdings, Inc. | 51,309 | $1.64M | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 51,309 | $1.64M | 0.00% | −26,698−34.2% | Reduced |
| New York State Common Retirement Fund | 44,300 | $1.42M | 0.00% | −10,000−18.4% | Reduced |
| Citigroup Inc | 43,356 | $1.39M | 0.00% | +9,611+28.5% | Added |
| Credit Suisse AG | 42,649 | $1.36M | 0.00% | −72−0.2% | Reduced |
| SEI Investments Co | 42,739 | $1.33M | 0.00% | −1,848−4.1% | Reduced |
| Legal & General Group Plc | 41,144 | $1.31M | 0.00% | +8,823+27.3% | Added |
| Rhumbline Advisers | 41,094 | $1.31M | 0.00% | −3,837−8.5% | Reduced |
| Occudo Quantitative Strategies LP | 39,349 | $1.26M | 0.15% | −2,794−6.6% | Reduced |
| Raymond James & Associates | 38,602 | $1.23M | 0.00% | +1,298+3.5% | Added |
| Envestnet Asset Management Inc | 38,381 | $1.23M | 0.00% | +3,495+10.0% | Added |
| Quantbot Technologies LP | 37,760 | $1.21M | 0.09% | +20,513+118.9% | Added |
| Man Group plc | 36,965 | $1.18M | 0.00% | +6,445+21.1% | Added |
| Qube Research & Technologies Ltd | 34,765 | $1.11M | 0.01% | −36,759−51.4% | Reduced |
| Allstate Corp | 33,638 | $1.07M | 0.04% | 00.0% | Unchanged |
| PFS Investments Inc. | 31,720 | $1.04M | 0.02% | +31,720 | New |
| Cna Financial Corp | 31,289 | $1.00M | 0.27% | −3,760−10.7% | Reduced |
| SG Americas Securities, LLC | 30,451 | $973.0K | 0.01% | +30,451 | New |
| Seascape Capital Management | 26,020 | $832.0K | 0.43% | +26,020 | New |
| Schonfeld Strategic Advisors LLC | 24,994 | $799.0K | 0.01% | +24,994 | New |
| Two Sigma Investments, LP | 23,700 | $757.0K | 0.00% | +12,300+107.9% | Added |
| Public Employees Retirement System of Ohio | 22,409 | $716.0K | 0.00% | −6,920−23.6% | Reduced |
| Walleye Capital LLC | 22,093 | $706.0K | 0.02% | +22,093 | New |
| Hillsdale Investment Management Inc. | 21,800 | $697.0K | 0.05% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 19,774 | $632.0K | 0.00% | +19,774 | New |
| Toth Financial Advisory Corp | 18,400 | $588.0K | 0.09% | +18,400 | New |
| Needham Investment Management LLC | 18,000 | $575.0K | 0.08% | −26,873−59.9% | Reduced |
| Avidian Wealth Solutions, LLC | 18,000 | $575.0K | 0.04% | 00.0% | Unchanged |
| Donoghue Forlines LLC | 16,354 | $523.0K | 0.10% | +826+5.3% | Added |
| DuPont Capital Management Corp | 15,787 | $505.0K | 0.02% | +3,184+25.3% | Added |
| Arizona State Retirement System | 15,493 | $495.0K | 0.00% | +45+0.3% | Added |
| Pathstone Family Office, LLC | 15,385 | $492.0K | 0.01% | +3,709+31.8% | Added |
| Voloridge Investment Management, LLC | 15,157 | $484.0K | 0.00% | −188−1.2% | Reduced |
| Treasurer of the State of North Carolina | 14,459 | $462.0K | 0.00% | −3,421−19.1% | Reduced |
| Engineers Gate Manager LP | 13,935 | $445.0K | 0.03% | −71,743−83.7% | Reduced |
| Trexquant Investment LP | 13,822 | $442.0K | 0.04% | +2,276+19.7% | Added |
| Handelsbanken Fonder AB | 13,700 | $438.0K | 0.00% | 00.0% | Unchanged |
| Paloma Partners Management Co | 13,609 | $435.0K | 0.02% | −6,412−32.0% | Reduced |