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CIK 0000880807 · Large accelerated filer

AMERICAN SUPERCONDUCTOR CORP /DE/

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Ticker
AMSC
Exchange
Nasdaq
Industry
Motors & Generators
FY end
Mar 31
Incorporated
DE
Entity type
operating
EIN
042959321
Phone
9788423000
Business address
SIXTY FOUR JACKSON ROAD, DEVENS, MA, 01434
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-08-04 Kosiba John W JR SVP, CFO & Treasurer Sale −15,740 $55.13 $868K 352,890
2025-08-04 Kosiba John W JR SVP, CFO & Treasurer Sale −9,843 $55.26 $544K 0
2025-06-11 McGahn Daniel P Chairman, President and CEO Sale 10b5-1 −12,315 $28.56 $352K 1,284,482
2025-06-11 McGahn Daniel P Chairman, President and CEO Sale 10b5-1 −500 $29.09 $15K 1,283,982
2025-06-11 Kosiba John W JR SVP, CFO & Treasurer Sale 10b5-1 −6,342 $28.55 $181K 403,190
2025-06-11 Kosiba John W JR SVP, CFO & Treasurer Sale 10b5-1 −300 $29.08 $9K 402,890
2025-06-06 Kosiba John W JR SVP, CFO & Treasurer Sale 10b5-1 −4,744 $31.83 $151K 409,532
2025-06-06 McGahn Daniel P Chairman, President and CEO Sale 10b5-1 −7,689 $31.82 $245K 1,296,797
2025-05-27 McGahn Daniel P Chairman, President and CEO Sale 10b5-1 −24,506 $25.55 $626K 1,402,635
2025-05-27 McGahn Daniel P Chairman, President and CEO Sale 10b5-1 −98,149 $26.60 $2.6M 1,304,486
2025-05-27 Kosiba John W JR SVP, CFO & Treasurer Sale 10b5-1 −10,097 $25.55 $258K 454,179
2025-05-27 Kosiba John W JR SVP, CFO & Treasurer Sale 10b5-1 −39,903 $26.61 $1.1M 414,276
2025-05-27 Donnelly Terence Robert Director Grant or award · Stock Options (Right to Buy) +2,112 2,112
2025-05-20 Kosiba John W JR SVP, CFO & Treasurer Sale 10b5-1 −11,860 $24.50 $291K 464,276
2025-05-20 McGahn Daniel P Chairman, President and CEO Sale 10b5-1 −12,815 $24.49 $314K 1,427,141
2025-05-15 Kosiba John W JR SVP, CFO & Treasurer Grant or award +120,000 476,136
2025-05-15 McGahn Daniel P Chairman, President and CEO Grant or award +240,000 1,439,956
2025-04-03 OLIVER DAVID R JR Director Grant or award +2,639 60,707
2025-04-03 Littlefield Barbara G. Director Grant or award +2,639 32,311
2025-04-03 Klein Margaret D. Director Grant or award +2,639 15,876

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