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, Q1 2025
Institutional positions in Allegro Microsystems, Inc. as of Mar 31, 2025. 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
- 292
- +38 vs. Q4 2024
- Shares held
- 157.6M
- +15.7M (+11.1%) vs. Q4 2024
- Total value
- $3.96B
- +$859.2M (+27.7%) vs. Q4 2024
- New holders
- 70
- 105 more added
- Sold out
- 32
- 82 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Allegro Microsystems, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Citigroup Inc | 99,014 | $2.49M | 0.00% | −34,186−25.7% | Reduced |
| Manufacturers Life Insurance Company, The | 101,635 | $2.55M | 0.00% | −646−0.6% | Reduced |
| Envestnet Asset Management Inc | 104,966 | $2.64M | 0.00% | +28,179+36.7% | Added |
| Jane Street Group, LLC | 105,698 | $2.66M | 0.00% | +64,925+159.2% | Added |
| Two Sigma Investments, LP | 108,992 | $2.74M | 0.01% | −1,325,196−92.4% | Reduced |
| Verition Fund Management LLC | 114,870 | $2.89M | 0.02% | −4,681−3.9% | Reduced |
| Royal Bank of Canada | 117,923 | $2.96M | 0.00% | +48,554+70.0% | Added |
| Kennedy Capital Management, Inc. | 119,450 | $3.00M | 0.07% | −43,316−26.6% | Reduced |
| Polymer Capital Management (US) LLC | 122,807 | $3.09M | 0.93% | +122,807 | New |
| Barclays PLC | 124,176 | $3.12M | 0.00% | −32,149−20.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 131,250 | $3.30M | 0.02% | +102,400+354.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 132,115 | $3.32M | 0.00% | −124,752−48.6% | Reduced |
| Susquehanna International Group, LLP | 138,760 | $3.49M | 0.01% | +71,227+105.5% | Added |
| Corebridge Financial, Inc. | 144,303 | $3.63M | 0.02% | −3,453−2.3% | Reduced |
| BNP Paribas Arbitrage, SA | 150,574 | $3.78M | 0.00% | −488,683−76.4% | Reduced |
| State of Wisconsin Investment Board | 151,993 | $3.82M | 0.01% | +36,158+31.2% | Added |
| California State Teachers Retirement System | 155,436 | $3.91M | 0.00% | +35,394+29.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 157,197 | $3.95M | 0.01% | +16,952+12.1% | Added |
| Wells Fargo & Company | 161,038 | $4.05M | 0.00% | +23,192+16.8% | Added |
| TIG Advisors, LLC | 161,253 | $4.05M | 0.26% | +161,253 | New |
| Nuveen, LLC | 123,737 | $4.13M | 0.00% | +123,737 | New |
| Osterweis Capital Management Inc | 179,290 | $4.51M | 0.22% | +179,290 | New |
| Goldman Sachs Group Inc | 189,914 | $4.77M | 0.00% | −22,100−10.4% | Reduced |
| Lightrock Netherlands B.V. | 192,752 | $4.85M | 1.28% | −10,681−5.3% | Reduced |
| Legal & General Group Plc | 195,783 | $4.92M | 0.00% | +6,380+3.4% | Added |
| Retirement Systems of Alabama | 200,113 | $5.03M | 0.02% | +279+0.1% | Added |
| Polar Asset Management Partners Inc. | 232,055 | $5.83M | 0.19% | −146,649−38.7% | Reduced |
| Swiss National Bank | 249,500 | $6.27M | 0.00% | −3,700−1.5% | Reduced |
| Meridiem Capital Partners LP | 249,920 | $6.28M | 0.69% | −900,146−78.3% | Reduced |
| Lazard Asset Management LLC | 264,641 | $6.65M | 0.01% | −140,061−34.6% | Reduced |
| Peregrine Capital Management LLC | 268,416 | $6.75M | 0.22% | +268,416 | New |
| Comerica Bank | 273,170 | $6.86M | 0.03% | −376,565−58.0% | Reduced |
| Pier Capital, LLC | 284,767 | $7.16M | 1.20% | −158,054−35.7% | Reduced |
| Jain Global LLC | 284,953 | $7.16M | 0.15% | +94,991+50.0% | Added |
| ArrowMark Colorado Holdings LLC | 288,366 | $7.25M | 0.12% | +21,117+7.9% | Added |
| Westfield Capital Management Co LP | 303,672 | $7.63M | 0.04% | −1,944,000−86.5% | Reduced |
| Janus Henderson Group PLC | 327,192 | $8.13M | 0.00% | +269,863+470.7% | Added |
| Trillium Asset Management, LLC | 326,592 | $8.21M | 0.24% | +69,782+27.2% | Added |
| Rhumbline Advisers | 330,263 | $8.30M | 0.01% | +4,428+1.4% | Added |
| UBS Asset Management Americas Inc | 354,610 | $8.91M | 0.00% | +85,607+31.8% | Added |
| SEI Investments Co | 382,662 | $9.62M | 0.01% | +9,267+2.5% | Added |
| S Squared Technology, LLC | 397,451 | $9.99M | 5.11% | +30,000+8.2% | Added |
| Allspring Global Investments Holdings, LLC | 394,572 | $10.3M | 0.02% | +371,987+1,647.1% | Added |
| Talos Asset Management LP | 449,600 | $11.3M | 4.79% | −293,544−39.5% | Reduced |
| Neuberger Berman Group LLC | 457,770 | $11.5M | 0.01% | +457,770 | New |
| Alyeska Investment Group, L.P. | 469,589 | $11.8M | 0.05% | +44,588+10.5% | Added |
| Walleye Capital LLC | 489,300 | $12.3M | 0.14% | −226,143−31.6% | Reduced |
| Ameriprise Financial Inc | 503,226 | $12.6M | 0.00% | +142,702+39.6% | Added |
| FIFTHDELTA Ltd | 505,600 | $12.7M | 3.18% | +505,600 | New |
| Oasis Management Co Ltd. | 530,210 | $13.3M | 4.48% | +530,210 | New |
| First Trust Advisors LP | 546,947 | $13.7M | 0.01% | −251,104−31.5% | Reduced |
| Massachusetts Financial Services Co | 610,167 | $15.3M | 0.01% | −462,767−43.1% | Reduced |
| Silvercrest Asset Management Group LLC | 659,361 | $16.6M | 0.12% | +21,790+3.4% | Added |
| Voya Investment Management LLC | 669,012 | $16.8M | 0.02% | +654,094+4,384.6% | Added |
| Paloma Partners Management Co | 708,968 | $17.8M | 3.34% | −1,394,832−66.3% | Reduced |
| Cinctive Capital Management LP | 942,702 | $23.7M | 1.89% | +942,702 | New |
| Alliancebernstein L.P. | 953,689 | $24.0M | 0.01% | +425,516+80.6% | Added |
| Raymond James Financial Inc | 993,340 | $25.0M | 0.01% | +300,505+43.4% | Added |
| Bank of New York Mellon Corp | 996,573 | $25.0M | 0.00% | −63,578−6.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 1,036,364 | $26.0M | 0.18% | −584,524−36.1% | Reduced |
| Loomis Sayles & Co L P | 1,040,582 | $26.1M | 0.04% | +167,115+19.1% | Added |
| GW&K Investment Management, LLC | 1,054,756 | $26.5M | 0.25% | +24,434+2.4% | Added |
| Northern Trust Corp | 1,089,779 | $27.4M | 0.00% | +15,346+1.4% | Added |
| Charles Schwab Investment Management Inc | 1,166,915 | $29.3M | 0.01% | +31,568+2.8% | Added |
| Norges Bank | 1,266,048 | $31.8M | 0.00% | +34,282+2.8% | Added |
| T. Rowe Price Investment Management, Inc. | 1,280,246 | $32.2M | 0.02% | −785,633−38.0% | Reduced |
| Bank of America Corp | 1,293,235 | $32.5M | 0.00% | +953,785+281.0% | Added |
| Segall Bryant & Hamill, LLC | 1,311,526 | $33.0M | 0.51% | +1,311,526 | New |
| UBS Group AG | 1,460,418 | $36.7M | 0.01% | +118,718+8.8% | Added |
| Freestone Grove Partners LP | 1,603,200 | $40.3M | 0.42% | +1,230,709+330.4% | Added |
| Kodai Capital Management LP | 1,655,806 | $41.6M | 1.65% | +1,655,806 | New |
| Analog Century Management LP | 1,932,170 | $48.6M | 3.93% | −69,268−3.5% | Reduced |
| Dimensional Fund Advisors LP | 1,968,079 | $49.5M | 0.01% | +248,805+14.5% | Added |
| Adage Capital Partners GP, L.L.C. | 2,108,423 | $53.0M | 0.10% | −625,137−22.9% | Reduced |
| Summit Partners Public Asset Management, LLC | 2,271,600 | $57.1M | 2.74% | +1,377,600+154.1% | Added |
| Balyasny Asset Management LLC | 2,326,464 | $58.5M | 0.15% | +1,759,343+310.2% | Added |
| Geode Capital Management, LLC | 2,388,084 | $60.0M | 0.00% | +23,502+1.0% | Added |
| Millennium Management LLC | 2,402,978 | $60.4M | 0.06% | +1,078,025+81.4% | Added |
| Principal Financial Group Inc | 2,416,102 | $60.7M | 0.03% | +144,824+6.4% | Added |
| Macquarie Group Ltd | 2,636,014 | $66.2M | 0.08% | +1,157,239+78.3% | Added |
| Morgan Stanley | 2,648,371 | $66.6M | 0.00% | −8,427−0.3% | Reduced |
| Frontier Capital Management Co LLC | 2,909,737 | $73.1M | 0.80% | +2,818,543+3,090.7% | Added |
| Clearbridge Investments, LLC | 3,161,587 | $79.5M | 0.07% | −223,410−6.6% | Reduced |
| Wellington Management Group LLP | 3,248,890 | $81.6M | 0.02% | −744,792−18.6% | Reduced |
| Citadel Advisors LLC | 4,333,613 | $108.9M | 0.11% | +2,758,171+175.1% | Added |
| Invesco Ltd. | 4,835,641 | $121.5M | 0.02% | +2,746,880+131.5% | Added |
| State Street Corp | 5,084,599 | $127.8M | 0.01% | −792,883−13.5% | Reduced |
| JPMorgan Chase & Co | 8,995,806 | $226.1M | 0.02% | −1,535,701−14.6% | Reduced |
| Capital Research Global Investors | 11,062,801 | $278.0M | 0.06% | +5,294,593+91.8% | Added |
| BlackRock, Inc. | 11,671,558 | $293.3M | 0.01% | −86,050−0.7% | Reduced |
| Vanguard Group Inc | 14,100,017 | $354.3M | 0.01% | +17,070+0.1% | Added |
| FMR LLC | 26,921,116 | $676.5M | 0.04% | +4,146,625+18.2% | Added |
| Artisan Partners Limited Partnership | 0 | $0 | 0.00% | −1,429,250−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −707,400−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −441,623−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −141,888−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −120,454−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −62,737−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −56,994−100.0% | Sold out |