ALGMAllegro MicroSystems, Inc. Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 11569
Ticker: ALGM
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2020-10-29
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: ALGM

Detail

Enriched 2026-08-14 20:47

Market cap: $7,916,494,893.62
Shares outstanding (class): 186,402,046
Shares outstanding (weighted): 186,402,046
SIC: 3674 SEMICONDUCTORS & RELATED DEVICES
Employees: 4,250
Location: MANCHESTER, NH
Homepage: https://www.allegromicro.com
Description: Allegro Microsystems Inc is a designer, developer, fabless manufacturer, and marketer of sensor ICs and application-specific analog power ICs for automotive and industrial markets. Its Sensor IC allows customers to precisely measure motion, speed, position, and current, and Power ICs include high-temperature and high-voltage capable motor drivers, power management, and LED driver ICs. Its products are divided into three categories: SENSE, which includes Current Sensors, Switches, and Latches, and Interface ICs among others; REGULATE, which includes Regulators, ClearPower Modules, and LED Drivers; and DRIVE, which includes BLDC Drivers, Brush DC, and others. Product-wise, the firm derives the majority of its revenue from sales of Magnetic sensors.

Market cap and share counts drift.

Funds holding this security

220 funds · 222 positions · $1.28B reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
SMALLCAP World Fund Inc SMALLCAP World Fund Inc	—	$178.16M	0.22%	5,650,629 NS	FIGI
iShares Core S&P Mid-Cap ETF iShares Trust	IJH	$129.60M	0.12%	4,110,334 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$121.12M	0.01%	3,841,298 NS	FIGI
VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS	VB	$87.55M	0.05%	2,776,694 NS	FIGI
VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS	VBK	$49.03M	0.13%	1,554,894 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$43.65M	0.05%	1,384,283 NS	FIGI
State Street(R) SPDR(R) S&P(R) Semiconductor ETF SPDR SERIES TRUST	XSD	$43.03M	2.66%	1,364,749 NS	FIGI
VIP Mid Cap Portfolio Variable Insurance Products Fund III	—	$41.85M	0.52%	1,327,312 NS	FIGI
State Street SPDR S&P MidCap 400SM ETF Trust —	—	$29.50M	0.12%	935,687 NS	FIGI
Carillon Scout Mid Cap Fund Carillon Series Trust	—	$29.31M	0.78%	929,564 NS	FIGI
JPMorgan Small Cap Equity Fund JPMorgan Trust I	—	$28.45M	1.00%	902,307 NS	FIGI
Invesco Main Street Small Cap Fund AIM Growth Series (Invesco Growth Series)	—	$26.61M	1.21%	843,832 NS	FIGI
JPMorgan Small Cap Growth Fund JPMorgan Trust II	—	$22.53M	1.03%	714,500 NS	FIGI
JPMorgan U.S. Tech Leaders ETF J.P. Morgan Exchange-Traded Fund Trust	JTEK	$20.48M	0.67%	649,563 NS	FIGI
Calvert Small Cap Fund Calvert Impact Fund, Inc.	—	$20.30M	1.34%	643,932 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERALGM
FIGI_COMPOSITEBBG00H5S8391
FIGI_SHARE_CLASSBBG00H5S83B8
CIK0000866291
ISINUS01749D1054
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Information Technology
Industry: Semiconductors
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: The company is a semiconductor manufacturer, as indicated by its SIC code and business description.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.