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 SVP, GC and Secretary Sharon Briansky reported two stock transactions. She completed an open-market sale of 9,727 shares of common stock at $35.00 per share on March 2, 2026, executed under a pre-arranged Rule 10b5-1 trading plan.
In a separate transaction on February 27, 2026, 9,107 shares were withheld to cover taxes due upon the vesting of previously granted restricted stock units. After these transactions, she directly holds 84,180 shares of Allegro MicroSystems common stock.
Allegro MicroSystems EVP, CFO & Treasurer Derek D’Antilio reported a tax-related share disposition. On this Form 4, 9,995 shares of common stock were withheld at a price of $36.47 per share to cover taxes due upon the vesting of previously granted restricted stock units. After this withholding, D’Antilio directly owns 216,776 Allegro MicroSystems shares.
Allegro MicroSystems SVP and CHRO Erin Hagen reported two stock transactions in company shares. On March 2, 2026, Hagen completed an open-market sale of 2,598 shares of common stock at $35.00 per share, leaving 30,094 shares of direct ownership after the sale.
On February 27, 2026, Hagen disposed of 1,996 shares of common stock at $36.47 per share to cover taxes due upon the vesting of previously granted restricted stock units, as indicated by the footnote. Both transactions involve directly held common stock.
Form 144 filing for ALGM: The filing lists reported dispositions by Sharon Briansky of 27,873 common shares on 12/10/2025 and 9,258 common shares on 02/17/2026. The filing also records a Restricted Stock Vesting event of 9,727 common shares on 02/27/2026.
ALLEGRO MICROSYSTEMS, INC. senior vice president and general counsel Sharon Briansky reported two transactions in the company’s common stock. On February 17, 2026, she executed an open-market sale of 9,258 shares at $41.56 per share, leaving 103,014 shares held directly afterward.
On February 13, 2026, 8,991 shares at $42.38 per share were disposed of to cover taxes due upon the vesting of previously granted restricted stock units, rather than as a discretionary sale. The filing notes that the reported sales were made under a Rule 10b5-1 trading plan adopted by the reporting person.
ALLEGRO MICROSYSTEMS, INC. executive Derek D’Antilio, EVP, CFO & Treasurer, reported an automatic share disposition tied to equity compensation. On this Form 4, 17,808 shares of common stock were withheld at $42.38 per share to cover taxes due when previously granted restricted stock units vested. After this tax-withholding event, he held 226,771 shares of Allegro common stock directly. This reflects routine administration of stock-based compensation rather than an open-market sale.
A person named in a Form 144 notice plans to sell 9,258 shares of common stock of the issuer through Fidelity Brokerage Services LLC on or about February 17, 2026 on NASDAQ, with an indicated aggregate market value of $384,762.48.
The shares were acquired on February 13, 2026 through restricted stock vesting from the issuer as compensation. The notice also reports that the issuer had 185,290,870 shares outstanding and that the same seller disposed of 27,873 common shares on December 10, 2025 for $836,190.00 in gross proceeds.
Capital Research Global Investors, a division of Capital Research and Management Company and related investment management entities, reports beneficial ownership of 13,111,292 shares of Allegro MicroSystems, Inc. common stock.
This stake represents 7.1% of the 185,119,045 shares believed to be outstanding as of the reporting date. Capital Research Global Investors has sole power to vote and dispose of all 13,111,292 shares, with no shared voting or dispositive power reported.
The securities are stated to be held in the ordinary course of business and not for the purpose of changing or influencing control of Allegro MicroSystems, nor in connection with any transaction intended to have that effect.
FMR LLC and Abigail P. Johnson report significant passive ownership in Allegro MicroSystems, Inc. common stock. As of 12/31/2025, they beneficially owned 23,635,746.28 shares, representing 12.8% of the outstanding common stock.
The filing notes that one or more other persons have rights to dividends or sale proceeds, including Select Semiconductors Portfolio, whose interest amounted to 14,179,921.00 Allegro shares, or 7.7% of the total outstanding common stock at 12/31/2025. The holders certify the position is held in the ordinary course of business and not for the purpose of changing or influencing control of Allegro.