Allegro Microsystems, Inc. (NASDAQ:ALGM) has 285 institutional investors with active 13F positions as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| FMR LLC | 31 Mar, 2026 | 27,421,206 | 3,785,460 | 16.02% | $864,590,613.00 |
| FMR LLC | 31 Mar, 2026 | 23,635,746 | -3,832,097 | -13.95% | $623,510,987.00 |
| VANGUARD GROUP INC | 31 Mar, 2026 | 14,202,528 | -90,937 | -0.64% | $374,662,689.00 |
| Capital Research Global Investors | 31 Mar, 2026 | 13,111,292 | -3,713,430 | -22.07% | $345,875,883.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 12,494,868 | 293,411 | 2.40% | $393,963,174.00 |
| Capital Research Global Investors | 31 Mar, 2026 | 12,435,558 | -675,734 | -5.15% | $392,093,144.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 12,201,457 | 824,039 | 7.24% | $321,874,446.00 |
| Invesco Ltd. | 31 Mar, 2026 | 8,751,481 | 1,100,430 | 14.38% | $275,934,196.00 |
| Jpmorgan Chase & Co | 31 Mar, 2026 | 8,652,068 | 1,304,646 | 17.76% | $242,604,037.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 7,920,042 | 7,920,042 | 0.00% | $249,718,924.00 |
| Invesco Ltd. | 31 Mar, 2026 | 7,651,051 | 2,338,624 | 44.02% | $201,834,725.00 |
| Jpmorgan Chase & Co | 31 Mar, 2026 | 7,347,422 | -8,115,112 | -52.48% | $193,825,019.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 5,464,718 | 5,464,718 | 0.00% | $172,302,559.00 |
| State Street Corp | 31 Mar, 2026 | 5,359,488 | 78,203 | 1.48% | $141,383,293.00 |
| State Street Corp | 31 Mar, 2026 | 5,228,104 | -131,384 | -2.45% | $164,842,119.00 |
| Clearbridge Investments, LLC | 31 Mar, 2026 | 2,916,785 | -16,021 | -0.55% | $76,944,799.00 |
| Clearbridge Investments, LLC | 31 Mar, 2026 | 2,863,710 | -53,075 | -1.82% | $90,292,781.00 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 31 Mar, 2026 | 2,803,944 | 1,227,317 | 77.84% | $73,968,043.00 |
| CITADEL ADVISORS LLC | 31 Mar, 2026 | 2,560,520 | 2,228,889 | 672.10% | $67,546,518.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 2,456,820 | 62,852 | 2.63% | $77,480,560.00 |