Allegro Microsystems, Inc. (NASDAQ:ALGM) appears in 285 institutional 13F filings for the quarter ending 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 |
| 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 |
| 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 |
| 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 | 5,228,104 | -131,384 | -2.45% | $164,842,119.00 |
| Clearbridge Investments, LLC | 31 Mar, 2026 | 2,863,710 | -53,075 | -1.82% | $90,292,781.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 2,456,820 | 62,852 | 2.63% | $77,480,560.00 |
| Morgan Stanley | 31 Mar, 2026 | 2,275,285 | 42,149 | 1.89% | $71,739,824.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 2,170,487 | 30,340 | 1.42% | $68,398,874.00 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 31 Mar, 2026 | 2,080,641 | 44,429 | 2.18% | $65,603,000.00 |
| Principal Financial Group Inc | 31 Mar, 2026 | 1,790,466 | 48,170 | 2.76% | $56,453,393.00 |
| ALLIANCEBERNSTEIN L.P. | 31 Mar, 2026 | 1,723,370 | 574,718 | 50.03% | $45,462,501.00 |
| LOOMIS SAYLES & CO L P | 31 Mar, 2026 | 1,674,108 | 844,869 | 101.88% | $52,784,625.00 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 31 Mar, 2026 | 1,464,737 | -1,339,207 | -47.76% | $46,183,158.00 |
| VOYA INVESTMENT MANAGEMENT LLC | 31 Mar, 2026 | 1,459,271 | 518,913 | 55.18% | $46,010,815.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 1,437,215 | -155,443 | -9.76% | $45,315,389.00 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 31 Mar, 2026 | 1,390,606 | 28,188 | 2.07% | $43,845,807.00 |