According to SEC filings for the period ending September 2025, Allegro Microsystems, Inc. (NASDAQ:ALGM) is held by 287 institutional firms.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| FMR LLC | 30 Sep, 2025 | 27,467,843 | 220,370 | 0.81% | $802,060,992.00 |
| Capital Research Global Investors | 30 Sep, 2025 | 16,824,722 | 920,365 | 5.79% | $491,281,882.00 |
| VANGUARD GROUP INC | 30 Sep, 2025 | 14,293,465 | 87,526 | 0.62% | $417,369,179.00 |
| BlackRock, Inc. | 30 Sep, 2025 | 11,377,418 | -412,450 | -3.50% | $332,220,613.00 |
| JPMORGAN CHASE & CO | 30 Sep, 2025 | 7,731,267 | -282,231 | -3.52% | $225,753,000.00 |
| Invesco Ltd. | 30 Sep, 2025 | 5,312,427 | -942,148 | -15.06% | $155,122,868.00 |
| STATE STREET CORP | 30 Sep, 2025 | 5,281,285 | 88,284 | 1.70% | $154,213,522.00 |
| Clearbridge Investments, LLC | 30 Sep, 2025 | 2,932,806 | -230,958 | -7.30% | $85,637,927.00 |
| ALLIANCEBERNSTEIN L.P. | 30 Sep, 2025 | 2,690,496 | -69,376 | -2.51% | $78,562,483.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 30 Sep, 2025 | 2,369,129 | -36,857 | -1.53% | $69,190,805.00 |
| Analog Century Management LP | 30 Sep, 2025 | 2,349,906 | 978,316 | 71.33% | $68,617,256.00 |
| MACQUARIE GROUP LTD | 30 Sep, 2025 | 2,197,274 | -382,054 | -14.81% | $64,160,000.00 |
| DIMENSIONAL FUND ADVISORS LP | 30 Sep, 2025 | 1,970,550 | -137,254 | -6.51% | $57,539,641.00 |
| MORGAN STANLEY | 30 Sep, 2025 | 1,939,029 | -137,323 | -6.61% | $56,619,686.00 |
| PRINCIPAL FINANCIAL GROUP INC | 30 Sep, 2025 | 1,914,074 | -243,263 | -11.28% | $55,890,961.00 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 30 Sep, 2025 | 1,576,627 | -600,933 | -27.60% | $46,037,508.00 |
| SEGALL BRYANT & HAMILL, LLC | 30 Sep, 2025 | 1,323,726 | -4,528 | -0.34% | $38,652,799.00 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 30 Sep, 2025 | 1,294,993 | 55,668 | 4.49% | $37,813,796.00 |
| WELLINGTON MANAGEMENT GROUP LLP | 30 Sep, 2025 | 1,160,917 | -1,475,922 | -55.97% | $33,898,777.00 |
| T. Rowe Price Investment Management, Inc. | 30 Sep, 2025 | 1,085,198 | -202,643 | -15.74% | $31,688.00 |