JPMorgan Chase & Co. filed an amended Schedule 13G with the SEC on November 5, 2026, disclosing beneficial ownership of 8,022,860 shares of Allegro MicroSystems, Inc. common stock as of October 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: JPMorgan Chase & Co. reported beneficial ownership of 8,022,860 shares of Allegro MicroSystems common stock, representing 4.3% of the class.
  • Sole voting power: JPMorgan Chase & Co. reported sole power to vote or direct the vote of 7,496,819 shares.
  • Sole dispositive power: The filing disclosed sole power to dispose of or direct the disposition of 8,022,623 shares.
  • Shared voting and dispositive power: Shared voting power was reported as 1 share; shared dispositive power was reported as 237 shares.
  • Triggering event date: The date of the event requiring this filing was stated as October 30, 2026.
  • Filing entity type: JPMorgan Chase & Co. identified itself as a parent holding company (type "HC") organized in Delaware.

JPMorgan Chase Discloses Sub-5% Position in Allegro MicroSystems via Amended 13G

JPMorgan Chase & Co., headquartered at 270 Park Avenue, New York, NY 10017, filed Amendment No. 1 to its Schedule 13G regarding its holdings in Allegro MicroSystems, Inc. (CUSIP: 01749D105), whose principal executive offices are located at 955 Perimeter Road, Manchester, NH 03103. The filing was signed by Rachel Tsvaygoft, Vice President, on November 5, 2026, and relates to Allegro MicroSystems' common stock with a par value of $0.01 per share.

According to the filing, JPMorgan Chase & Co. beneficially owned an aggregate of 8,022,860 shares, equating to 4.3% of the class. The filing identified the ownership as constituting 5 percent or less of the class, as noted under Item 5. JPMorgan Chase & Co. reported sole voting power over 7,496,819 shares, shared voting power over 1 share, sole dispositive power over 8,022,623 shares, and shared dispositive power over 237 shares.

Under Item 7, the filing identified seven subsidiaries through which the reported securities were acquired or held: J.P. Morgan Trust Company of Delaware; J.P. Morgan Securities LLC; JPMorgan Asset Management (UK) Limited; JPMorgan Chase Bank, National Association; J.P. Morgan Investment Management Inc.; J.P. Morgan Wealth Management Solutions Inc.; and 55I, LLC. The filing certified that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer."

What Was Disclosed

JPMorgan Chase & Co. filed an amended Schedule 13G disclosing beneficial ownership of 8,022,860 shares, or 4.3%, of Allegro MicroSystems, Inc. common stock as of October 30, 2026, held through seven identified subsidiaries in the ordinary course of business.