Allegro MicroSystems stock (ALGM)

Allegro MicroSystems stock (ALGM) closed at $31.71 on Nov 12, 2026, up 20.2% year to date, for a market capitalization of $5.9B. Revenue of $1.0B over the last twelve months; in the latest quarter, revenue up 29.2% year on year, with a 49.2% gross margin and a 12.8% operating margin. Filed with the SEC, as of Sep 25, 2026.

Last close
$31.71 (2026-11-12)
Year to date
+20.2%
52-week range
$22.41 – $71.77
Market capitalization
$5.9B
Dividend yield
None
Revenue (TTM)
$1.0B
Revenue growth
+29.2%
Gross margin
49.2%
Operating margin
12.8%
Price / sales
5.9
EV / revenue
6.0
Figures as of
2026-09-25
Named institutional holders
81
Declared ownership
43.7% – 66.9%
Exchange
Nasdaq
Headquarters
Manchester, New Hampshire
Fiscal year ends
March
Industry (SEC)
Semiconductors & Related Devices
Registered with the SEC as
ALLEGRO MICROSYSTEMS, INC. (CIK 866291)

Who owns Allegro MicroSystems?

81 institutional holders named from SEC filings, together declaring between 43.7% and 66.9% of the shares outstanding, as of Oct 30, 2026. The largest named holders of Allegro MicroSystems stock are Vanguard (7.6%), BlackRock (7.4%), Invesco (6.6%), Capital Group (5.8%) and Fidelity (FMR) (5.3%). From Mar 31, 2026 to Jun 30, 2026, 93 managers opened a position, 110 added, 103 reduced and 41 sold out; the biggest sellers were Fidelity (FMR) and NOMURA ASSET MANAGEMENT INTERNATIONAL INC., the biggest buyers Invesco and JPMorgan.

Allegro MicroSystems shareholders: institutions, insiders and funds

Allegro MicroSystems dividend

Allegro MicroSystems does not pay a dividend: none in its price history since Sep 23, 2021.

Allegro MicroSystems dividend history

About Allegro MicroSystems

The Company is a global leader in the design, development, and marketing of sensor integrated circuits (“ICs”) and application-specific power ICs that enable the sensing, motion control, and power management functions of complex electromechanical or power conversion systems. We primarily serve automotive and industrial markets, including advanced industrial markets such as AI data centers, robotics, and energy infrastructure, where our solutions enable customers to sense, move, and manage power with efficiency, precision, and reliability.

Allegro MicroSystems' own description, from its annual report (Form 10-K, filed May 21, 2026), Item 1. Business. Read the filing on sec.gov

Allegro MicroSystems is headquartered in Manchester, New Hampshire. It is registered with the SEC as ALLEGRO MICROSYSTEMS, INC. (CIK 866291); its fiscal year ends in March and its shares trade on the Nasdaq. Allegro MicroSystems is one of the artificial intelligence (AI) and semiconductor companies tracked on Silicon Floor, in the chips & compute segment, with live prices, SEC filings, financial statements, institutional ownership and dividends.

Latest reported quarter

In its quarter ended Sep 25, 2026 (filed Oct 30, 2026), Allegro MicroSystems reported revenue of $276.9M, operating income of $35.4M and net income of $23.3M.

Latest SEC filings

More on Allegro MicroSystems

Filed figures, quarter by quarter

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Allegro MicroSystems (ALGM) stock on Silicon Floor: who owns it, who is buying, who is selling.
Allegro MicroSystems (ALGM) stock on Silicon Floor: who owns it, who is buying, who is selling.