Allegro MicrosystemsALGM
13F holders, Q4 2024 (December 31)256holders +8
33new positions
39sold out
2famous investors
$21.86avg. 13F price*
At the end of Q4 2024, 256 institutions reported holding Allegro Microsystems Inc. (ALGM) in their 13F filings, up 8 from Q3 2024. 33 opened new positions and 39 sold out. The largest holders were FMR LLC ($497.9M), Vanguard Group Inc. ($307.9M) and BlackRock, Inc. ($257.0M). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors'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 Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 33 | $105.4M |
| Exits | 39 | $39.1M |
All 13F filers, Q3 2024 → Q4 2024: 15,913,837 shares bought and 19,413,188 shares sold, net −3,499,351 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 256 holders
| FMR LLC | 0.03% | Reduce -19.4% | 22,774,491 | $497.9M |
| Vanguard Group Inc. | 0.01% | Reduce -4.3% | 14,082,947 | $307.9M |
| BlackRock, Inc. | 0.01% | Reduce -8.4% | 11,757,608 | $257.0M |
| JPMorgan Chase & Co. | 0.02% | Reduce -4.5% | 10,531,507 | $230.2M |
| State Street Corp. | 0.01% | Add +7.1% | 5,877,482 | $128.5M |
| Capital Research Global Investors | 0.03% | Add +6.5% | 5,768,208 | $126.1M |
| Wellington Management Group LLP | 0.02% | Add +30.5% | 3,993,682 | $87.3M |
| Clearbridge Investments, LLC | 0.06% | Reduce -13.9% | 3,384,997 | $74.0M |
| Adage Capital Partners Gp, L.L.C. | 0.10% | Add +50.1% | 2,733,560 | $59.8M |
| Morgan Stanley | 0.00% | Add +30.4% | 2,656,798 | $58.1M |
| Geode Capital Management, LLC | 0.00% | Reduce -7.7% | 2,364,582 | $51.7M |
| Principal Financial Group Inc. | 0.03% | Reduce -9.1% | 2,271,278 | $49.7M |
| Westfield Capital Management Co. LP | 0.21% | Add +11.6% | 2,247,672 | $49.1M |
| Paloma Partners Management Co | 4.26% | Add +312.8% | 2,103,800 | $46.0M |
| Invesco Ltd. | 0.01% | Reduce -35.8% | 2,088,761 | $45.7M |
| T. Rowe Price Investment Management, Inc. | 0.03% | Add +31.2% | 2,065,879 | $45.2M |
| Analog Century Management LP | 2.93% | Add +17.1% | 2,001,438 | $43.8M |
| Woodline Partners LP | 0.27% | Add +18.4% | 1,833,705 | $40.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +30.8% | 1,719,274 | $37.6M |
| Schonfeld Strategic Advisors LLC | 0.22% | New | 1,620,888 | $35.4M |
| Citadel Advisors | 0.03% | Add +17.6% | 1,575,442 | $34.4M |
| Macquarie Group Ltd. | 0.04% | Add +4.9% | 1,478,775 | $32.3M |
| Two Sigma Investments, LP | 0.08% | Add +4.0% | 1,434,188 | $31.4M |
| Artisan Partners Limited Partnership | 0.05% | Reduce -5.8% | 1,429,250 | $31.2M |
| UBS Group AG | 0.01% | Add +308.1% | 1,341,700 | $29.3M |
| Millennium Management | 0.03% | Add +96.8% | 1,324,953 | $29.0M |
| Norges Bank | 0.00% | Reduce -5.9% | 1,231,766 | $26.9M |
| Meridiem Capital Partners LP | 2.36% | — | 1,150,066 | $25.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -16.9% | 1,135,347 | $24.8M |
| Northern Trust Corp. | 0.00% | Add +13.6% | 1,074,433 | $23.5M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -26.2% | 1,072,934 | $23.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -10.3% | 1,060,151 | $23.2M |
| GW&K Investment Management, LLC | 0.19% | Reduce -5.0% | 1,030,322 | $22.5M |
| Summit Partners Public Asset Management, LLC | 0.65% | New | 894,000 | $19.5M |
| Loomis Sayles & Co. L P | 0.02% | Add +11.4% | 873,467 | $19.1M |
| Kettle Hill Capital Management, LLC | 3.91% | New | 823,001 | $18.0M |
| First Trust Advisors LP | 0.02% | Reduce -24.5% | 798,051 | $17.4M |
| Talos Eurisko Asset Management LP | 3.84% | — | 743,144 | $16.2M |
| Walleye Capital LLC | 0.17% | Add +19576.7% | 715,443 | $15.6M |
| Two Sigma Advisers, LP | 0.04% | Add +12.8% | 707,400 | $15.5M |
| Raymond James Financial Inc. | 0.01% | — | 692,835 | $15.1M |
| Comerica Bank | 0.06% | Add +11.9% | 649,735 | $14.2M |
| BNP Paribas Financial Markets | 0.01% | New | 639,257 | $14.0M |
| Silvercrest Asset Management Group LLC | 0.09% | Add +21.9% | 637,571 | $13.9M |
| Balyasny Asset Management L.P. | 0.03% | Reduce -13.2% | 567,121 | $12.4M |
| Alliancebernstein L.P. | 0.00% | Add +183.1% | 528,173 | $11.5M |
| Pier Capital, LLC | 1.38% | Add +37.3% | 442,821 | $9.7M |
| Schroder Investment Management Group | 0.01% | Add +2.4% | 441,623 | $9.5M |
| Alyeska Investment Group, L.P. | 0.04% | Reduce -26.1% | 425,001 | $9.3M |
| Lazard Asset Management LLC | 0.01% | Add +22.2% | 404,702 | $8.8M |
| New York State Common Retirement Fund | 0.01% | Reduce -34.8% | 392,295 | $8.6M |
| Polar Asset Management Partners Inc. | 0.16% | Add +47.1% | 378,704 | $8.3M |
| Sei Investments Co. | 0.01% | Reduce -1.9% | 373,395 | $8.2M |
| Freestone Grove Partners LP | 0.10% | — | 372,491 | $8.1M |
| S Squared Technology, LLC | 3.34% | No change | 367,451 | $8.0M |
| Ameriprise Financial Inc. | 0.00% | Reduce -81.5% | 360,524 | $7.9M |
| Bank of America Corp. | 0.00% | Reduce -47.6% | 339,450 | $7.4M |
| Rhumbline Advisers | 0.01% | Reduce -10.3% | 325,835 | $7.1M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.01% | Add +1.1% | 256,867 | $6.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +38.4% | 269,003 | $5.9M |
| ArrowMark Colorado Holdings LLC | 0.08% | Add +7.5% | 267,249 | $5.8M |
| Trillium Asset Management, LLC | 0.15% | Reduce -7.5% | 256,810 | $5.6M |
| Swiss National Bank | 0.00% | Add +7.7% | 253,200 | $5.5M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -7.4% | 227,956 | $5.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -7.5% | 212,014 | $4.6M |
| Holocene Advisors, LP | 0.01% | Add +6.8% | 210,218 | $4.6M |
| Lightrock Netherlands B.V. | 1.57% | — | 203,433 | $4.5M |
| Granahan Investment Management, LLC | 0.18% | Reduce -28.8% | 201,817 | $4.4M |
| Retirement Systems of Alabama | 0.02% | Reduce -13.1% | 199,834 | $4.4M |
| Jain Global LLC | 0.12% | — | 189,962 | $4.2M |
| Legal & General Group Plc | 0.00% | Reduce -2.9% | 189,403 | $4.1M |
| Kennedy Capital Management LLC | 0.08% | Reduce -28.4% | 162,766 | $3.6M |
| Barclays PLC | 0.00% | Add +106.7% | 156,325 | $3.4M |
| LMR Partners LLP | 0.07% | New | 150,000 | $3.3M |
| Corebridge Financial, Inc. | 0.02% | Reduce -19.5% | 147,756 | $3.2M |
| HRT Financial LP | 0.02% | New | 141,888 | $3.1M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Reduce -13.3% | 140,245 | $3.1M |
| Wells Fargo & Company | 0.00% | Reduce -41.3% | 137,846 | $3.0M |
| Citigroup Inc. | 0.00% | Add +244.3% | 133,200 | $2.9M |
| New Age Alpha Advisors, LLC | 0.11% | New | 120,623 | $2.6M |
| Allianz Asset Management GmbH | 0.00% | No change | 120,454 | $2.6M |
| California State Teachers Retirement System | 0.00% | Add +5.2% | 120,042 | $2.6M |
| Verition Fund Management LLC | 0.01% | Add +115.3% | 119,551 | $2.6M |
| State of Wisconsin Investment Board | 0.01% | Reduce -27.4% | 115,835 | $2.5M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -95.3% | 102,281 | $2.2M |
| State of Tennessee, Department of Treasury | 0.01% | Add +94.5% | 93,365 | $2.0M |
| Frontier Capital Management Co. LLC | 0.02% | New | 91,194 | $2.0M |
| Needham Investment Management LLC | 0.15% | Add +24.1% | 90,000 | $2.0M |
| State Board of Administration of Florida Retirement System | 0.00% | Add +82.2% | 79,863 | $1.7M |
| T. Rowe Price Associates Inc. | 0.00% | Add +34.4% | 79,464 | $1.7M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -11.2% | 76,787 | $1.7M |
| MetLife Investment Management, LLC | 0.01% | Reduce -7.8% | 73,498 | $1.6M |
| Royal Bank of Canada | 0.00% | Reduce -8.1% | 69,369 | $1.5M |
| Mutual of America Capital Management LLC | 0.02% | Reduce -17.9% | 69,005 | $1.5M |
| Susquehanna International Group, LLP | 0.00% | Reduce -80.7% | 67,533 | $1.5M |
| Bryce Point Capital, LLC | 0.42% | — | 66,154 | $1.4M |
| Atom Investors LP | 0.18% | Add +37.4% | 64,716 | $1.4M |
| Marshall Wace, LLP | 0.00% | New | 62,737 | $1.4M |
| Amalgamated Bank | 0.01% | Reduce -14.6% | 61,797 | $1.4M |
| Amundi | 0.00% | Reduce -2.3% | 56,994 | $1.3M |
"% of holder's portfolio" is ALGM's weight in each manager's 13F, not the share of Allegro Microsystems Inc. the manager owns.