ALGM

ALLEGRO MICROSYSTEMS, INC.

Ticker: ALGMTechnologySemiconductors
HQ MANCHESTER, NHCIK 866291FY end 03-31Book / share $5.14Shares 188M
Revenue (FY)
$890.10M+22.77%
TTM $945.93M
Op. margin
2.08%+4.81%
TTM 4.94%
Net income
$-14.65M+79.86%
TTM $14.43M
Operating cash
$163.07M+163.38%
TTM $123.44M
Free cash flow
$124.89M+468.78%
TTM $87.85M
Return on equity
-1.56%+6.29%
TTM 1.47%
Debt / equity
0.30-0.07%
TTM 0.30
Shares outstanding
185.0M-1.42%
TTM 187.8M

The business

Allegro MicroSystems, Inc. (NASDAQ: ALGM) is a global leader in the design, development, and marketing of sensor integrated circuits and application-specific power integrated circuits that enable sensing, motion control, and power management functions in complex electromechanical and power conversion systems. The company maintains its website at www.allegromicro.com.

The company operates as a fabless semiconductor manufacturer with a portfolio exceeding 1,500 products, shipping approximately 2.1 billion units annually to more than 15,000 customers worldwide. Allegro's core offerings span two primary product categories: magnetic sensor integrated circuits and power integrated circuits. The magnetic sensor portfolio represents the broadest range in the industry and includes Hall-effect, giant magnetoresistive, and tunneling magnetoresistive technologies marketed under the XtremeSense brand. Power IC solutions encompass motor drivers, voltage regulators, isolated gate drivers, and power management integrated circuits built on the company's proprietary 120-volt Bipolar-CMOS-DMOS process technology.

Allegro primarily serves automotive and industrial markets, with particular focus on vehicle electrification, advanced driver assistance systems, artificial intelligence data centers, robotics, and energy infrastructure. The company's customer base includes virtually all major global automotive manufacturers, leading tier-one automotive suppliers, and growing numbers of data center and automation customers. Approximately 55 percent of net sales are derived from distributors, with no single end customer exceeding 10 percent of revenues.

The company maintains manufacturing operations through a hybrid model combining internal assembly and testing capabilities at its primary facility in the Philippines with external partnerships across Asia and North America. Allegro operates research and development centers in the United States, Europe, South America, and Asia, employing approximately 760 engineers dedicated to product development and process technology innovation.

Notable acquisitions include Crocus Technology International Corp. and Heyday Integrated Circuits, which expanded the company's isolated gate driver and tunneling magnetoresistive technology capabilities. The company is a member of the Responsible Business Alliance and maintains supplier codes of conduct addressing labor, safety, and environmental standards throughout its global supply chain.

Sector
Technology
Industry
Semiconductors
HQ
MANCHESTER, NH
FY end
03-31
CIK
866291
SIC
3674
Financial performance · annual
20212026
$-184.98M$151.66M$488.30M$824.94M$1.16B202120222023202420252026TTMTTMTTM

Ownership

Who holds ALLEGRO MICROSYSTEMS, INC. — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30

401
funds hold it
0 of 35
superinvestors hold it
$5.95B
fund-held value
54.8%
of shares held by funds

Top fund holders

Fund% of fundValue
Select Semiconductors Portfolio
FSELX · Fidelity Select Portfolios
1.56%$801.31M
SMALLCAP World Fund Inc
SMCWX
0.41%$383.17M
iShares Core S&P Mid-Cap ETF
IJH · iShares Trust
0.24%$295.80M
Capital World Growth & Income Fund
CWGIX
0.18%$283.72M
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.01%$267.42M

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

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