Allegro MicrosystemsALGM
13F holders, Q2 2025 (June 30)273holders −18
52new positions
67sold out
6famous investors
$34.21avg. 13F price*
At the end of Q2 2025, 273 institutions reported holding Allegro Microsystems Inc. (ALGM) in their 13F filings, down 18 from Q1 2025. 52 opened new positions and 67 sold out. The largest holders were FMR LLC ($931.6M), Capital Research Global Investors ($543.8M) and Vanguard Group Inc. ($485.7M). 6 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Steve Cohen (0.0% of Point72 Asset Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Allegro Microsystems Inc.
- CUSIP
- 01749D105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 52 | $50.9M |
| Exits | 67 | $188.1M |
All 13F filers, Q1 2025 → Q2 2025: 13,429,447 shares bought and 23,297,569 shares sold, net −9,868,122 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 273 holders
| FMR LLC | 0.05% | Add +1.2% | 27,247,473 | $931.6M |
| Capital Research Global Investors | 0.11% | Add +43.8% | 15,904,357 | $543.8M |
| Vanguard Group Inc. | 0.01% | Add +0.8% | 14,205,939 | $485.7M |
| BlackRock, Inc. | 0.01% | Add +1.0% | 11,789,868 | $403.1M |
| JPMorgan Chase & Co. | 0.02% | Reduce -10.9% | 8,013,498 | $274.0M |
| Invesco Ltd. | 0.04% | Add +29.3% | 6,254,575 | $213.8M |
| State Street Corp. | 0.01% | Add +2.1% | 5,193,001 | $177.5M |
| Clearbridge Investments, LLC | 0.09% | Add +0.1% | 3,163,764 | $108.2M |
| Alliancebernstein L.P. | 0.03% | Add +189.4% | 2,759,872 | $94.4M |
| Wellington Management Group LLP | 0.02% | Reduce -18.8% | 2,636,839 | $90.2M |
| Macquarie Group Ltd. | 0.11% | Reduce -2.1% | 2,579,328 | $88.2M |
| Geode Capital Management, LLC | 0.01% | Add +0.8% | 2,405,986 | $82.3M |
| Frontier Capital Management Co. LLC | 0.75% | Reduce -18.7% | 2,365,957 | $80.9M |
| Adage Capital Partners Gp, L.L.C. | 0.13% | Add +3.3% | 2,177,560 | $74.5M |
| Principal Financial Group Inc. | 0.04% | Reduce -10.7% | 2,157,337 | $73.8M |
| Dimensional Fund Advisors LP | 0.02% | Add +7.1% | 2,107,804 | $72.1M |
| Morgan Stanley | 0.00% | Reduce -21.6% | 2,076,352 | $71.0M |
| Citadel Advisors | 0.05% | Reduce -64.9% | 1,519,408 | $51.9M |
| Balyasny Asset Management L.P. | 0.12% | Reduce -36.7% | 1,472,089 | $50.3M |
| Norges Bank | 0.01% | Add +11.2% | 1,407,943 | $48.1M |
| Analog Century Management LP | 2.75% | Reduce -29.0% | 1,371,590 | $46.9M |
| Segall Bryant & Hamill, LLC | 0.64% | Add +1.3% | 1,328,254 | $45.4M |
| T. Rowe Price Investment Management, Inc. | 0.03% | Add +0.6% | 1,287,841 | $44.0M |
| Raymond James Financial Inc. | 0.01% | Add +26.4% | 1,255,182 | $42.9M |
| Neuberger Berman Group LLC | 0.03% | Add +171.8% | 1,244,415 | $42.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +6.2% | 1,239,325 | $42.4M |
| Summit Partners Public Asset Management, LLC | 1.54% | Reduce -49.2% | 1,154,000 | $39.5M |
| Northern Trust Corp. | 0.01% | Reduce -2.9% | 1,058,724 | $36.2M |
| Bank of New York Mellon Corp | 0.01% | Add +4.6% | 1,042,420 | $35.6M |
| Royal Bank of Canada | 0.01% | Add +619.5% | 848,511 | $29.0M |
| Voya Investment Management LLC | 0.03% | Add +7.1% | 716,443 | $24.5M |
| GW&K Investment Management, LLC | 0.22% | Reduce -33.2% | 704,818 | $24.1M |
| Silvercrest Asset Management Group LLC | 0.16% | Add +4.7% | 690,365 | $23.6M |
| Millennium Management | 0.02% | Reduce -71.7% | 679,618 | $23.2M |
| Loomis Sayles & Co. L P | 0.03% | Reduce -36.0% | 666,361 | $22.8M |
| UBS Group AG | 0.00% | Reduce -54.8% | 659,640 | $22.6M |
| First Trust Advisors LP | 0.02% | Add +5.4% | 576,478 | $19.7M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -15.9% | 513,045 | $17.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +36.3% | 483,323 | $16.5M |
| Bank of America Corp. | 0.00% | Reduce -64.5% | 458,769 | $15.7M |
| Schonfeld Strategic Advisors LLC | 0.11% | Reduce -58.0% | 435,308 | $14.9M |
| Ameriprise Financial Inc. | 0.00% | Reduce -17.1% | 417,154 | $14.3M |
| S Squared Technology, LLC | 5.73% | No change | 397,451 | $13.6M |
| Allspring Global Investments Holdings, LLC | 0.02% | Reduce -0.9% | 391,104 | $13.5M |
| Two Sigma Investments, LP | 0.02% | Add +218.2% | 346,806 | $11.9M |
| Rhumbline Advisers | 0.01% | Reduce -0.1% | 329,870 | $11.3M |
| Trillium Asset Management, LLC | 0.29% | Reduce -4.8% | 310,829 | $10.6M |
| Point72 Asset Management | 0.03% | New | 294,555 | $10.1M |
| Pier Capital, LLC | 1.37% | Reduce -7.9% | 262,153 | $9.0M |
| Swiss National Bank | 0.01% | Reduce -1.3% | 246,200 | $8.4M |
| Nuveen, LLC | 0.00% | Add +98.5% | 245,629 | $8.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +25.1% | 237,561 | $8.1M |
| Peregrine Capital Management LLC | 0.24% | Reduce -12.5% | 234,925 | $8.0M |
| ArrowMark Colorado Holdings LLC | 0.14% | Reduce -21.1% | 227,377 | $7.8M |
| Legal & General Group Plc | 0.00% | Add +3.4% | 202,481 | $6.9M |
| Retirement Systems of Alabama | 0.02% | Add +0.3% | 200,781 | $6.9M |
| Lazard Asset Management LLC | 0.01% | Reduce -32.8% | 177,822 | $6.1M |
| Citigroup Inc. | 0.00% | Add +78.3% | 176,538 | $6.0M |
| Wells Fargo & Company | 0.00% | Add +2.8% | 165,489 | $5.7M |
| Susquehanna International Group, LLP | 0.01% | Add +11.1% | 154,114 | $5.3M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Reduce -5.2% | 148,977 | $5.1M |
| Ecofi Investissements SA | 5.00% | Reduce -55.7% | 27,100 | $4.5M |
| HRT Financial LP | 0.02% | New | 130,831 | $4.5M |
| G2 Investment Partners Management LLC | 0.97% | New | 130,000 | $4.4M |
| ExodusPoint Capital Management, LP | 0.05% | New | 128,830 | $4.4M |
| California State Teachers Retirement System | 0.00% | Reduce -23.6% | 118,738 | $4.1M |
| Barclays PLC | 0.00% | Reduce -5.2% | 117,759 | $4.0M |
| Lightrock Netherlands B.V. | 1.10% | Reduce -28.5% | 137,752 | $4.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Reduce -11.5% | 116,923 | $4.0M |
| State of Wisconsin Investment Board | 0.01% | Reduce -23.3% | 116,652 | $4.0M |
| Susquehanna Portfolio Strategies, LLC | 0.09% | New | 115,830 | $4.0M |
| Lisanti Capital Growth, LLC | 1.04% | Add +39.1% | 109,975 | $3.8M |
| Castleark Management LLC | 0.11% | New | 103,160 | $3.5M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -7.9% | 93,651 | $3.2M |
| State of Tennessee, Department of Treasury | 0.01% | No change | 93,365 | $3.2M |
| T. Rowe Price Associates Inc. | 0.00% | Add +15.6% | 89,327 | $3.1M |
| Sei Investments Co. | 0.00% | Reduce -77.4% | 86,352 | $3.0M |
| State Board of Administration of Florida Retirement System | 0.01% | Add +0.2% | 84,583 | $2.9M |
| Jain Global LLC | 0.05% | Reduce -71.3% | 81,812 | $2.8M |
| Comerica Bank | 0.01% | Reduce -71.1% | 78,990 | $2.7M |
| Bridgewater Associates | 0.01% | New | 77,321 | $2.6M |
| Kennedy Capital Management LLC | 0.06% | Reduce -38.6% | 73,395 | $2.5M |
| State of New Jersey Common Pension Fund D | 0.01% | Reduce -6.0% | 72,692 | $2.5M |
| MetLife Investment Management, LLC | 0.01% | Reduce -2.9% | 70,267 | $2.4M |
| Itau Unibanco Holding S.A. | 0.09% | New | 70,000 | $2.4M |
| Mutual of America Capital Management LLC | 0.02% | Reduce -3.4% | 65,011 | $2.2M |
| Amalgamated Bank | 0.02% | Reduce -1.7% | 59,267 | $2.0M |
| Verition Fund Management LLC | 0.01% | Reduce -48.8% | 58,786 | $2.0M |
| Treasurer of the State of North Carolina | 0.01% | Add +7.3% | 57,486 | $2.0M |
| Janus Henderson Group PLC | 0.00% | Reduce -82.5% | 57,329 | $2.0M |
| New York State Common Retirement Fund | 0.00% | No change | 54,138 | $1.9M |
| Group One Trading LLC | 0.06% | Add +19.4% | 52,861 | $1.8M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -49.8% | 52,656 | $1.8M |
| Polymer Capital Management (US) LLC | 0.28% | Reduce -59.0% | 50,300 | $1.7M |
| Needham Investment Management LLC | 0.14% | No change | 50,000 | $1.7M |
| Quantinno Capital Management LP | 0.01% | Add +18.1% | 46,939 | $1.6M |
| Police & Firemen's Retirement System of New Jersey | 0.01% | Add +8.9% | 45,882 | $1.6M |
| Robeco Schweiz AG | 0.04% | New | 45,000 | $1.5M |
| Yousif Capital Management, LLC | 0.02% | Reduce -1.7% | 43,651 | $1.5M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +14.8% | 42,732 | $1.5M |
"% of holder's portfolio" is ALGM's weight in each manager's 13F, not the share of Allegro Microsystems Inc. the manager owns.