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 2024
Institutional positions in Allegro Microsystems, Inc. as of Dec 31, 2024. 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
- 256
- +10 vs. Q3 2024
- Shares held
- 142.1M
- −10.5K (0.0%) vs. Q3 2024
- Total value
- $3.11B
- −$204.4M (−6.2%) vs. Q3 2024
- New holders
- 51
- 79 more added
- Sold out
- 41
- 107 more reduced
2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 22,774,491 | $497.9M | 0.03% | −5,479,320−19.4% | Reduced |
| Vanguard Group Inc | 14,082,947 | $307.9M | 0.01% | −636,594−4.3% | Reduced |
| BlackRock, Inc. | 11,757,608 | $257.0M | 0.01% | −1,085,798−8.5% | Reduced |
| JPMorgan Chase & Co | 10,531,507 | $230.2M | 0.02% | −492,121−4.5% | Reduced |
| State Street Corp | 5,877,482 | $128.5M | 0.01% | +391,193+7.1% | Added |
| Capital Research Global Investors | 5,768,208 | $126.1M | 0.03% | +353,776+6.5% | Added |
| Wellington Management Group LLP | 3,993,682 | $87.3M | 0.02% | +934,048+30.5% | Added |
| Clearbridge Investments, LLC | 3,384,997 | $74.0M | 0.06% | −547,074−13.9% | Reduced |
| Adage Capital Partners GP, L.L.C. | 2,733,560 | $59.8M | 0.10% | +911,993+50.1% | Added |
| Morgan Stanley | 2,656,798 | $58.1M | 0.00% | +619,904+30.4% | Added |
| Geode Capital Management, LLC | 2,364,582 | $51.7M | 0.00% | −196,900−7.7% | Reduced |
| Principal Financial Group Inc | 2,271,278 | $49.7M | 0.03% | −228,482−9.1% | Reduced |
| Westfield Capital Management Co LP | 2,247,672 | $49.1M | 0.21% | +233,191+11.6% | Added |
| Paloma Partners Management Co | 2,103,800 | $46.0M | 3.03% | +1,594,170+312.8% | Added |
| Invesco Ltd. | 2,088,761 | $45.7M | 0.01% | −1,166,514−35.8% | Reduced |
| T. Rowe Price Investment Management, Inc. | 2,065,879 | $45.2M | 0.03% | +491,173+31.2% | Added |
| Analog Century Management LP | 2,001,438 | $43.8M | 2.93% | +291,990+17.1% | Added |
| Woodline Partners LP | 1,833,705 | $40.1M | 0.27% | +285,573+18.4% | Added |
| Dimensional Fund Advisors LP | 1,719,274 | $37.6M | 0.01% | +404,761+30.8% | Added |
| Schonfeld Strategic Advisors LLC | 1,620,888 | $35.4M | 0.22% | +1,620,888 | New |
| Citadel Advisors LLC | 1,575,442 | $34.4M | 0.03% | +235,410+17.6% | Added |
| Macquarie Group Ltd | 1,478,775 | $32.3M | 0.04% | +68,505+4.9% | Added |
| Two Sigma Investments, LP | 1,434,188 | $31.4M | 0.07% | +54,485+3.9% | Added |
| Artisan Partners Limited Partnership | 1,429,250 | $31.2M | 0.05% | −88,845−5.9% | Reduced |
| UBS Group AG | 1,341,700 | $29.3M | 0.01% | +1,012,976+308.2% | Added |
| Millennium Management LLC | 1,324,953 | $29.0M | 0.03% | +651,883+96.9% | Added |
| Norges Bank | 1,231,766 | $26.9M | 0.00% | −77,300−5.9% | Reduced |
| Meridiem Capital Partners LP | 1,150,066 | $25.1M | 2.36% | +1,150,066 | New |
| Charles Schwab Investment Management Inc | 1,135,347 | $24.8M | 0.00% | −230,961−16.9% | Reduced |
| Northern Trust Corp | 1,074,433 | $23.5M | 0.00% | +128,726+13.6% | Added |
| Massachusetts Financial Services Co | 1,072,934 | $23.5M | 0.01% | −380,070−26.2% | Reduced |
| Bank of New York Mellon Corp | 1,060,151 | $23.2M | 0.00% | −121,430−10.3% | Reduced |
| GW&K Investment Management, LLC | 1,030,322 | $22.5M | 0.19% | −53,825−5.0% | Reduced |
| Summit Partners Public Asset Management, LLC | 894,000 | $19.5M | 0.65% | +894,000 | New |
| Loomis Sayles & Co L P | 873,467 | $19.1M | 0.02% | +89,356+11.4% | Added |
| Kettle Hill Capital Management, LLC | 823,001 | $18.0M | 3.91% | +823,001 | New |
| First Trust Advisors LP | 798,051 | $17.4M | 0.02% | −258,637−24.5% | Reduced |
| Talos Asset Management LP | 743,144 | $16.2M | 3.84% | +743,144 | New |
| Walleye Capital LLC | 715,443 | $15.6M | 0.15% | +711,807+19,576.7% | Added |
| Two Sigma Advisers, LP | 707,400 | $15.5M | 0.04% | +80,400+12.8% | Added |
| Raymond James Financial Inc | 692,835 | $15.1M | 0.01% | +692,835 | New |
| Comerica Bank | 649,735 | $14.2M | 0.06% | +69,104+11.9% | Added |
| BNP Paribas Arbitrage, SA | 639,257 | $14.0M | 0.01% | +639,257 | New |
| Silvercrest Asset Management Group LLC | 637,571 | $13.9M | 0.09% | +114,476+21.9% | Added |
| Balyasny Asset Management LLC | 567,121 | $12.4M | 0.03% | −86,574−13.2% | Reduced |
| Alliancebernstein L.P. | 528,173 | $11.5M | 0.00% | +341,627+183.1% | Added |
| Pier Capital, LLC | 442,821 | $9.68M | 1.38% | +120,326+37.3% | Added |
| Schroder Investment Management Group | 441,623 | $9.53M | 0.01% | +10,155+2.4% | Added |
| Alyeska Investment Group, L.P. | 425,001 | $9.29M | 0.04% | −150,000−26.1% | Reduced |
| Lazard Asset Management LLC | 404,702 | $8.85M | 0.01% | +73,439+22.2% | Added |
| New York State Common Retirement Fund | 392,295 | $8.58M | 0.01% | −209,384−34.8% | Reduced |
| Polar Asset Management Partners Inc. | 378,704 | $8.28M | 0.12% | +121,300+47.1% | Added |
| SEI Investments Co | 373,395 | $8.16M | 0.01% | −7,160−1.9% | Reduced |
| Freestone Grove Partners LP | 372,491 | $8.14M | 0.10% | +372,491 | New |
| S Squared Technology, LLC | 367,451 | $8.03M | 3.34% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 360,524 | $7.88M | 0.00% | −1,590,003−81.5% | Reduced |
| Bank of America Corp | 339,450 | $7.42M | 0.00% | −308,468−47.6% | Reduced |
| Rhumbline Advisers | 325,835 | $7.12M | 0.01% | −37,279−10.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 256,867 | $6.09M | 0.01% | +2,798+1.1% | Added |
| UBS Asset Management Americas Inc | 269,003 | $5.88M | 0.00% | +74,681+38.4% | Added |
| ArrowMark Colorado Holdings LLC | 267,249 | $5.84M | 0.08% | +18,688+7.5% | Added |
| Trillium Asset Management, LLC | 256,810 | $5.61M | 0.15% | −20,747−7.5% | Reduced |
| Swiss National Bank | 253,200 | $5.53M | 0.00% | +18,200+7.7% | Added |
| Nuveen Asset Management, LLC | 227,956 | $4.98M | 0.00% | −18,175−7.4% | Reduced |
| Goldman Sachs Group Inc | 212,014 | $4.63M | 0.00% | −17,300−7.5% | Reduced |
| Holocene Advisors, LP | 210,218 | $4.60M | 0.01% | +13,387+6.8% | Added |
| Lightrock Netherlands B.V. | 203,433 | $4.47M | 1.57% | +203,433 | New |
| Granahan Investment Management Inc | 201,817 | $4.41M | 0.18% | −81,458−28.8% | Reduced |
| Retirement Systems of Alabama | 199,834 | $4.37M | 0.02% | −29,981−13.0% | Reduced |
| Jain Global LLC | 189,962 | $4.15M | 0.12% | +189,962 | New |
| Legal & General Group Plc | 189,403 | $4.14M | 0.00% | −5,660−2.9% | Reduced |
| Kennedy Capital Management, Inc. | 162,766 | $3.56M | 0.08% | −64,469−28.4% | Reduced |
| Barclays PLC | 156,325 | $3.42M | 0.00% | +80,705+106.7% | Added |
| LMR Partners LLP | 150,000 | $3.28M | 0.06% | +150,000 | New |
| Corebridge Financial, Inc. | 147,756 | $3.23M | 0.02% | −35,807−19.5% | Reduced |
| HRT Financial LP | 141,888 | $3.10M | 0.02% | +141,888 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 140,245 | $3.07M | 0.01% | −21,445−13.3% | Reduced |
| Wells Fargo & Company | 137,846 | $3.01M | 0.00% | −96,826−41.3% | Reduced |
| Citigroup Inc | 133,200 | $2.91M | 0.00% | +94,509+244.3% | Added |
| New Age Alpha Advisors, LLC | 120,623 | $2.64M | 0.11% | +120,623 | New |
| Allianz Asset Management GmbH | 120,454 | $2.63M | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 120,042 | $2.62M | 0.00% | +5,970+5.2% | Added |
| Verition Fund Management LLC | 119,551 | $2.61M | 0.01% | +64,019+115.3% | Added |
| State of Wisconsin Investment Board | 115,835 | $2.53M | 0.01% | −43,809−27.4% | Reduced |
| Manufacturers Life Insurance Company, The | 102,281 | $2.24M | 0.00% | −2,050,641−95.2% | Reduced |
| State of Tennessee, Treasury Department | 93,365 | $2.04M | 0.01% | +45,365+94.5% | Added |
| Frontier Capital Management Co LLC | 91,194 | $1.99M | 0.02% | +91,194 | New |
| Needham Investment Management LLC | 90,000 | $1.97M | 0.15% | +17,500+24.1% | Added |
| State Board of Administration of Florida Retirement System | 79,863 | $1.75M | 0.00% | +36,040+82.2% | Added |
| Price T Rowe Associates Inc | 79,464 | $1.74M | 0.00% | +20,336+34.4% | Added |
| Envestnet Asset Management Inc | 76,787 | $1.68M | 0.00% | −9,668−11.2% | Reduced |
| MetLife Investment Management | 73,498 | $1.61M | 0.01% | −6,265−7.9% | Reduced |
| Royal Bank of Canada | 69,369 | $1.52M | 0.00% | −6,083−8.1% | Reduced |
| Mutual of America Capital Management LLC | 69,005 | $1.51M | 0.02% | −14,998−17.9% | Reduced |
| Susquehanna International Group, LLP | 67,533 | $1.48M | 0.00% | −282,919−80.7% | Reduced |
| Bryce Point Capital, LLC | 66,154 | $1.45M | 0.42% | +66,154 | New |
| Atom Investors LP | 64,716 | $1.41M | 0.18% | +17,601+37.4% | Added |
| Marshall Wace, LLP | 62,737 | $1.37M | 0.00% | +62,737 | New |
| Amalgamated Bank | 61,797 | $1.35M | 0.01% | −10,602−14.6% | Reduced |
| Amundi | 56,994 | $1.35M | 0.00% | −1,353−2.3% | Reduced |