American Superconductor Corporation (AMSC)
NASDAQ: AMSC · Real-Time Price · USD
39.73
-0.55 (-1.37%)
At close: Jun 26, 2026, 4:00 PM EDT
39.60
-0.13 (-0.33%)
After-hours: Jun 26, 2026, 7:47 PM EDT

Company Description

American Superconductor Corporation, together with its subsidiaries, provides megawatt-scale power resiliency solutions worldwide.

The company operates through two segments: Grid and Wind segments. The Grid segment offers products and services that enable electric utilities, industrial facilities, and traditional and renewable energy project developers to connect, transmit, and distribute power under the Gridtec Solutions brand.

It provides transmission planning services, which identify power grid congestion, poor power quality, and other risks; grid interconnection solutions for wind farms and solar power plants, power quality systems, and transmission and distribution cable systems; D-VAR systems used for controlling power flow and voltage in the AC transmission system; actiVAR system, a fast-switching medium-voltage reactive compensation solution; armorVAR system installed for reactive compensation, power factor correction, loss reduction, utility bill savings, and mitigation of common power quality concerns related to power converter-based generation and load devices; D-VAR volt var optimization (VVO) that serves the distribution power grid market.

This segment also offers ship protection systems, which reduce a vessel’s magnetic signature; power management, power generation systems, and propulsion motors and power generators; and transformers and rectifiers; and REG systems used in a ring or loop configuration to interconnect nearby urban substations.

The Wind segment designs wind turbine systems and licenses these designs to third parties under the Windtec Solutions brand.

It also supplies power electronics and software-based control systems, engineered designs, and support services; and provides customer support services to wind turbine manufacturers.

This segment’s design portfolio comprises a range of drivetrains and power ratings of 2 megawatts and higher.

The company was incorporated in 1987 and is headquartered in Ayer, Massachusetts.

American Superconductor Corporation
American Superconductor logo
Country United States
Founded 1987
IPO Date Dec 11, 1991
Industry Specialty Industrial Machinery
Sector Industrials
Employees 1,195
CEO Daniel McGahn

Contact Details

Address:
114 East Main Street
Ayer, Massachusetts 01432
United States
Phone 978 842 3000
Website amsc.com

Stock Details

Ticker Symbol AMSC
Exchange NASDAQ
Stock Type Common Stock
Fiscal Year April - March
Reporting Currency USD
CIK Code 0000880807
CUSIP Number 030111207
ISIN Number US0301112076
Employer ID 04-2959321
SIC Code 3621

Key Executives

Name Position
Daniel Patrick McGahn Chairman, President and Chief Executive Officer
John W. Kosiba Jr. Chief Financial Officer, Senior Vice President and Treasurer
Nicol Golez Director of Communications
John R. Samia Secretary

Latest SEC Filings

Date Type Title
Jun 18, 2026 ARS Filing
Jun 18, 2026 DEFA14A Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Jun 18, 2026 DEF 14A Other definitive proxy statements
Jun 11, 2026 144 Filing
Jun 11, 2026 144 Filing
Jun 10, 2026 144 Filing
Jun 8, 2026 144 Filing
Jun 8, 2026 144 Filing
Jun 3, 2026 144 Filing
Jun 3, 2026 144 Filing