Welcome to our dedicated page for Allegro Microsystems SEC filings (Ticker: ALGM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Allegro MicroSystems filings document financial results, material financing agreements, governance votes and proxy disclosures for a semiconductor company focused on power and sensing solutions. Recent Form 8-K reports furnish quarterly and fiscal-year operating results and disclose amendments to the company’s credit agreement, including term-loan refinancing and related debt obligations.
Proxy and annual-meeting filings cover board elections, auditor ratification, advisory executive-compensation votes and compensation disclosures. The filing record also documents capital-structure matters, shareholder voting outcomes and formal exhibits for material agreements that support the company’s public reporting framework.
ALLEGRO MICROSYSTEMS, INC. executive Roald Graham Webster, the VP and Chief Accounting Officer, reported an open-market sale of company stock. He sold 5,217 shares of common stock at a price of $44.885 per share and now directly holds 13,106 shares following this transaction.
Allegro MicroSystems, Inc. provides a detailed overview of its 2026 business, markets and risks as a fabless designer of sensor and power ICs focused on automotive and industrial applications such as xEV powertrains, ADAS, AI data centers and robotics. As of September 26, 2025, the aggregate market value of common equity held by non‑affiliates was $3,703,521,114, and as of May 18, 2026, there were 186,222,406 common shares outstanding. The company highlights technology platforms like its 120V BCD process and XtremeSense TMR sensors, a global mixed internal/external manufacturing model, and an R&D‑led strategy supported by approximately 760 engineers. It also outlines key risk factors, including semiconductor cyclicality, supply chain concentration, export restrictions on critical materials, and intense competition.
ALLEGRO MICROSYSTEMS, INC. executive Erin Hagen, the company’s SVP and chief human resources officer, had 5,815 shares of Common Stock withheld on May 16, 2026 to cover taxes due on previously granted restricted stock units that vested. After this tax-withholding disposition, Hagen directly owns 33,337 shares of Allegro common stock, indicating this was a routine compensation-related event rather than an open‑market trade.
ALLEGRO MICROSYSTEMS, INC. senior vice president of global operations Ian Kent reported a small net sale of company stock. On May 18, 2026, he executed an open-market sale of 2,642 common shares at $41.56 per share, leaving him with 25,392 directly held shares.
Two days earlier, on May 16, 2026, 2,345 shares were disposed of at $43.10 per share to satisfy tax obligations upon vesting of previously granted restricted stock units, a non-market, tax-withholding event.
ALLEGRO MICROSYSTEMS, INC. EVP, CFO & Treasurer Derek D'Antilio reported a tax-related share disposition. On the reported date, 37,840 shares of common stock were withheld at $43.10 per share to cover taxes due upon the vesting of previously granted restricted stock units and performance-vesting restricted stock units.
After this tax-withholding disposition, D'Antilio directly held 238,813 shares of Allegro common stock. This event reflects a routine administrative tax payment tied to equity compensation vesting rather than an open-market purchase or sale.
ALLEGRO MICROSYSTEMS, INC. senior vice president of worldwide sales Richard Madormo reported a routine tax-related share disposition. On May 16, 2026, 5,439 shares of common stock at $43.10 per share were withheld to cover taxes due upon the vesting of previously granted restricted stock units. After this withholding, Madormo directly held 74,687 shares of Allegro common stock.
ALLEGRO MICROSYSTEMS, INC. executive Roald Graham Webster, the VP and Chief Accounting Officer, reported a tax-related share disposition. On this Form 4, 4,277 shares of common stock were withheld at $43.10 per share to cover taxes due on previously granted restricted stock units and performance-vesting restricted stock units that vested.
These withheld shares were not an open-market sale but a payment of tax liability using company stock. After this withholding event, Webster directly holds 18,323 shares of Allegro common stock.
ALLEGRO MICROSYSTEMS, INC. President and CEO Michael Doogue reported routine share movements related to equity compensation. On the Form 4 date, 60,508 shares of common stock were withheld at $43.10 per share to cover taxes due upon the vesting of previously granted restricted stock units and performance-vesting restricted stock units. This tax-withholding disposition was not an open-market sale. After these transactions, Doogue held 279,076 common shares directly and 252,797 common shares indirectly through the Michael C. Doogue Revocable Trust of 2015.
ALLEGRO MICROSYSTEMS, INC. senior vice president and general counsel Sharon Briansky reported a routine tax-withholding transaction related to equity compensation. On this Form 4, 13,942 shares of common stock were withheld at $43.10 per share to cover taxes due when previously granted restricted stock units and performance-vesting restricted stock units vested. After this non-market disposition, she directly holds 79,753 shares of Allegro common stock.