ALGM Stock: Insider Activity, Filings & Research

Allegro MicroSystems, Inc. (ALGM) — Drillr’s hub for ALGM insider activity, SEC filings, earnings signals and AI research. Over the trailing 3 months, ALGM insiders filed 0 open-market buys and 7 sales (SEC Form 4).

Sentiment

0/100

Buys (3m)

Sells (3m)

Net (3m)

-$3.4M

Insider trades by month Buys Sells

Jun

Aug

Dec

Feb

May

Jun

Context3-month price +55.9%Institutions mixed (13F)

Date	Insider	Type	Shares	Price
Jun 4, 2026	Madormo Richardofficer: SVP, Worldwide Sales	Sell	5,000	$52.72
May 26, 2026	Coleman Troyofficer: SVP, General Manager, Products	Sell	4,500	$45.72
May 22, 2026	Webster Roald Grahamofficer: VP, Chief Accounting Officer	Sell	5,217	$44.88
May 19, 2026	Coleman Troyofficer: SVP, General Manager, Products	Tax	9,670	$43.10
May 19, 2026	Briansky Sharonofficer: SVP, GC and Secretary	Tax	13,942	$43.10
May 19, 2026	Doogue Michaeldirector, officer: President and CEO	Tax	60,508	$43.10
May 19, 2026	Webster Roald Grahamofficer: VP, Chief Accounting Officer	Tax	4,277	$43.10
May 19, 2026	Madormo Richardofficer: SVP, Worldwide Sales	Tax	5,439	$43.10
May 19, 2026	D'Antilio Derekofficer: EVP, CFO & Treasurer	Tax	37,840	$43.10
May 19, 2026	Kent Ianofficer: SVP, Global Operations	Sell	2,642	$41.56
May 19, 2026	Kent Ianofficer: SVP, Global Operations	Tax	2,345	$43.10
May 19, 2026	Hagen Erinofficer: SVP, CHRO	Tax	5,815	$43.10
May 15, 2026	Briansky Sharonofficer: SVP, GC and Secretary	Grant	2,611	—
May 15, 2026	D'Antilio Derekofficer: EVP, CFO & Treasurer	Grant	29,439	—
May 15, 2026	Briansky Sharonofficer: SVP, GC and Secretary	Grant	15,852	—

Source: ALGM SEC Form 4 filings, latest Jun 4, 2026. For informational purposes only — not investment advice.

Overview

Allegro MicroSystems, Inc. (NASDAQ:ALGM) is a semiconductor company founded in 1990 and headquartered in Manchester, New Hampshire. The company went public on October 29, 2020, and operates as a subsidiary of Japan's Sanken Electric Co., Ltd., though Sanken's ownership was reduced from 51% to 33% through a share repurchase in 2024. Allegro specializes in designing and manufacturing sensor integrated circuits and power management solutions primarily for automotive electrification and industrial automation applications. The company has established itself as a leader in magnetic sensing technology and serves customers globally through direct sales, distributors, and independent representatives.

Business

Allegro MicroSystems operates in the semiconductor industry, specifically focusing on sensor integrated circuits (ICs) and analog power ICs for motion control and energy-efficient systems. The company's products enable critical functions in modern vehicles and industrial equipment by detecting position, speed, and current while managing electrical power efficiently. The company's core offerings fall into three main categories. Magnetic sensor ICs represent the largest segment at approximately 61-69% of total sales, including position sensors that detect the location of moving parts, speed sensors that measure rotational velocity, and current sensors that monitor electrical flow. These sensors use magnetic field detection technology to provide precise measurements without physical contact, making them ideal for harsh automotive and industrial environments. Power ICs comprise the second major segment, including motor driver ICs that control electric motors, voltage regulators that manage power supply, and LED driver ICs for lighting applications. These products are essential for electric vehicle powertrains, industrial automation systems, and energy management applications. The third category includes photonic and 3D sensing components for emerging applications like LiDAR (Light Detection and Ranging) systems used in autonomous vehicles. This segment includes photodiodes that detect light signals, eye-safe lasers for distance measurement, and specialized readout ICs that process optical data. Allegro serves two primary markets: automotive applications account for approximately 73-79% of sales, while industrial and other applications represent 21-27% of revenue. The automotive segment is heavily focused on electric vehicle (e-mobility) applications, which represent about 48-50% of automotive sales and include battery management systems, motor control, and charging infrastructure.

Revenue model

Allegro generates revenue primarily through product sales of semiconductor chips to original equipment manufacturers (OEMs) and their suppliers. The company sells directly to large automotive manufacturers and industrial equipment makers, while also utilizing a distribution network for smaller customers and standard products. Approximately 49% of sales flow through distribution channels. The business model benefits from several factors that can expand margins. Design wins in automotive applications typically lead to multi-year production contracts with predictable revenue streams, as automotive qualification cycles create high switching costs for customers. The company's focus on high-value applications like electric vehicles and autonomous driving features commands premium pricing compared to commodity semiconductors. Geographic expansion, particularly the "China for China" supply chain initiative, helps reduce manufacturing costs while serving the world's largest automotive market. However, several factors can pressure margins. The semiconductor industry faces cyclical demand patterns, and automotive production volatility directly impacts sales volumes. Customer inventory adjustments can cause significant quarterly revenue swings, as evidenced by the 31% revenue decline in fiscal 2025 due to channel inventory rebalancing. Competitive pricing pressure, particularly from local Chinese competitors, requires ongoing cost reduction efforts. The company also faces exposure to commodity costs for materials like gold and copper used in chip packaging, though initiatives to convert from gold to copper wire bonding help mitigate this risk. The lengthy automotive design cycle means new product investments may take 2-3 years to reach production and 4-5 years to achieve peak revenue, requiring sustained R&D spending before returns materialize. Industrial applications offer faster time-to-market at approximately 12 months but typically involve smaller volumes than automotive programs.

Competitive moat

Allegro's competitive moat centers on its specialized magnetic sensing expertise and automotive qualification barriers. The company has developed proprietary magnetic sensing technologies, including traditional Hall-effect sensors and advanced Tunneling Magnetoresistance (TMR) sensors acquired through the Crocus acquisition. This technical expertise, combined with over 30 years of experience, creates a significant knowledge barrier for new entrants. The automotive industry's stringent qualification requirements provide substantial protection. Once Allegro's sensors are designed into a vehicle platform, the high cost and lengthy process of re-qualification creates strong customer stickiness. Automotive applications demand chips that can operate reliably for 15+ years in extreme temperature, vibration, and electromagnetic interference conditions - requirements that favor established players with proven track records. However, the moat faces several challenges. The magnetic sensing market attracts competition from larger semiconductor companies like Infineon, STMicroelectronics, and Texas Instruments, which have greater resources for R&D and customer support. Chinese competitors are increasingly targeting the domestic market with lower-cost alternatives, though they currently struggle to match Allegro's automotive-grade quality and reliability standards. The company's dependence on the automotive industry, while providing stability, also creates vulnerability to industry cycles and the potential for customers to develop in-house capabilities or switch to alternative sensing technologies. The emergence of new sensing modalities like optical or capacitive sensors could potentially disrupt magnetic sensing in certain applications, though magnetic sensors' robustness and cost-effectiveness maintain advantages in harsh environments. Overall, Allegro maintains a moderate but meaningful moat based on technical expertise and customer relationships, though ongoing investment in innovation and operational efficiency remains essential to defend market position.

Risks & safety

Allegro demonstrates a moderate margin of safety with mixed financial health indicators. • **Liquidity position**: Strong with $121 million cash, current ratio of 4.3x, and quick ratio of 2.7x providing substantial short-term financial flexibility • **Debt burden**: Manageable debt-to-equity ratio of 0.37x, though the company carries term loan obligations • **Profitability concerns**: Negative EBITDA of -$20 million in fiscal 2025 and net loss of -$73 million indicate operational challenges • **Cash generation**: Positive operating cash flow of $62 million and free cash flow of $22 million in fiscal 2025 demonstrate underlying cash generation capability despite accounting losses • **Valuation metrics**: Trading at 5.0x book value with negative earnings multiples due to losses, suggesting either distressed valuation or fundamental challenges • **Cyclical considerations**: Currently experiencing inventory-driven downturn with expectations for recovery as automotive production normalizes and electric vehicle adoption accelerates

Recent development

Over the past few years, Allegro has executed several strategic initiatives to strengthen its market position and expand into growth markets. The company completed the acquisition of Crocus Technology, significantly enhancing its magnetic sensing capabilities with advanced TMR (Tunneling Magnetoresistance) technology that offers superior performance compared to traditional Hall-effect sensors. A major corporate development was the share repurchase from parent company Sanken Electric, reducing Sanken's ownership from 51% to 33% and improving corporate governance while maintaining strategic partnership benefits. This transaction enhanced Allegro's independence and financial flexibility. The company has aggressively expanded its product portfolio, launching over 30 new products annually and doubling new product introductions compared to the IPO year. Key innovations include high-voltage isolated gate drivers for silicon carbide and gallium nitride power semiconductors, next-generation TMR current sensors, and 48-volt power management solutions for automotive applications. Operationally, Allegro initiated a "China for China" supply chain strategy to localize manufacturing and reduce costs while better serving the world's largest automotive market. The company also implemented a restructuring program targeting $15 million in annual cost savings and introduced cost innovations like converting from gold to copper wire bonding. Under new CEO Mike Duke's leadership, the company has refocused on accelerating innovation, expanding magnetic sensing market leadership, and driving operational efficiencies. Strategic priorities now emphasize capturing growth in e-mobility, data centers, robotics, and medical applications while maintaining the core automotive franchise.

ALGM company profile · for informational purposes only — not investment advice.

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