ALLEGRO MICROSYSTEMS, INC.

CIK: 8662913 Annual ReportsLatest: 2026-05-21
Revenue: $890,096,000Net Income: -$14,653,000Source 10-K
Disclaimer: AI-assisted summary of SEC Form 10-K filings. Not official company content and not investment, legal, accounting, or tax advice. See full disclaimer here.

10-K / May 21, 2026

Revenue:$890,096,000
Income:-$14,653,000

10-K / May 22, 2025

Revenue:$725,000,000
Income:-$72,800,000

10-K / May 23, 2024

Revenue:$1,049,367,000
Income:$152,888,000

10-K / May 21, 2026

Allegro MicroSystems, Inc.

Mission and focus

Allegro aims to lead in semiconductor technology with sensing and power solutions that support electrification, automation, AI, and robotics. The company is a fabless designer and marketer of sensor ICs and application-specific power ICs for motion control, sensing, and power management.

What the company does

  • Designs, develops, and markets magnetic sensor ICs and power ICs for sensing, motion control, and power management in electromechanical and power conversion systems.
  • Key capabilities include magnetic sensing (xMR technologies: Hall-effect, GMR, TMR) and high-voltage, high-temperature power integration using a BCD process.
  • Provides integrated system solutions by packaging sensors with passives, magnets, and on-chip ASIC-like logic to reduce external components and improve efficiency and reliability.
  • Product portfolio highlights:
    • Magnetic sensor ICs: current sensors, position sensors, speed sensors (xMR with XtremeSense™ TMR), and high-bandwidth current sensing for fast-switching power devices.
    • Power ICs: high-temperature, high-voltage motor drivers, DC-DC regulators, isolated gate drivers (IGD), regulators/PMICs, and LED drivers.
    • IGD technology that integrates isolated power and gate drivers for GaN/SiC power architectures, enabling smaller PCBs and higher efficiency.

Markets served

  • Target markets: automotive and industrial, including AI data centers, robotics, and energy infrastructure.
  • Automotive focus: xEV powertrains, ADAS (steering, braking, safety systems), 48V architectures, safety-critical systems, and body electronics.
  • Industrial focus: data center cooling and power delivery, robotics, factory automation, energy infrastructure, and personal mobility.

Scale and customers

  • Portfolio of more than 1,500 products.
  • Ships approximately 2.1 billion units annually.
  • Serves more than 15,000 end customers worldwide.
  • Customer concentration (top 20 customers, including distributors): 55.0% (2026), 50.7% (2025), 52.9% (2024).
  • No end customer, including distributors, exceeded 10% of net sales in 2026, 2025, or 2024.

Intellectual property

  • As of March 27, 2026: about 1,860 active patents (1,005 U.S. patents; expirations 2026–2044) and roughly 440 pending patents (including 250 U.S. applications).

Manufacturing and supply model

  • Fabless, asset-light model that relies on external wafer foundries and OSATs, with internal assembly and testing at AMPI in the Philippines.
  • Primary wafer foundries: UMC, Polar Semiconductor, Tower Semiconductor, and TSMC.
  • AMPI (Manila, Philippines) is the primary internal assembly/testing site (~440,000 sq ft; owned).
  • Manchester, New Hampshire (~125,000 sq ft; leased) houses corporate functions and some testing.
  • Approximately 51% of assembly was outsourced in fiscal 2026 (45% in 2025; 47% in 2024). The company uses additional OSAT partners in Asia as part of regional manufacturing expansion.
  • Packaging capabilities and tests are supplemented by a network of external subcontractors across Asia.

Global footprint and facilities

  • 27 locations across four continents.
  • Design and applications support centers in the Americas, Asia, and Europe to serve regional customer needs.

Employees

  • Approximately 4,250 full-time employees as of March 27, 2026.
    • R&D: about 760
    • Operations and quality: about 2,950 (majority at AMPI)
    • Sales and marketing: about 235
    • General and administrative: about 305
  • Maintains a strong engineering talent base and continues to introduce AI and automation enhancements in R&D processes.

Capital and liquidity

  • As of March 27, 2026: $285.0 million of debt outstanding under refinanced loans; no debt outstanding under the revolving facility; $256.0 million of additional borrowings available under the revolving facility.
  • Publicly traded on Nasdaq under the symbol ALGM. As of May 18, 2026, about 186,222,406 shares outstanding with approximately 6 holders of record.
  • The company does not plan to pay cash dividends and intends to reinvest earnings for growth and debt service.

Strategic capabilities and differentiators

  • 120V BCD wafer process for high-voltage sensing and power integration, suitable for 48V to 800V architectures.
  • Automotive-grade expertise in ASIL, safety, and high-temperature operation that supports product reliability and long lifecycles.
  • Integrated transducers: monolithic integration of magnetic transducers and CMOS circuitry (Hall-effect, xMR) on the same silicon to improve performance and reliability.
  • TMR (XtremeSense) technology for high-sensitivity, low-power sensing in applications such as xEVs, ADAS, data centers, and robotics.
  • IGD products with integrated transformers and DC-DC converters for compact, high-efficiency high-voltage power conversion.

ESG and governance

  • Maintains ESG goals with an ESG Steering Committee and board-level oversight.