John W Kosiba JR sold $1.3M of American Superconductor Corp /de/ (AMSC)

Executed May 27 2025, disclosed May 29 2025, 2 days later.

Value, as filed

$1.3M

50,000 sh across 2 lots

Executed

May 27 2025

the trade date, as filed

Disclosed

May 29 2025

2 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

JJ John W Kosiba JR SVP, CFO & Treasurer profile →

John W Kosiba JR (SVP, CFO & Treasurer) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in AMSC. The largest single filing was $1.8M of AMSC (35,700 sh across 5 lots, as filed), executed Jun 2.

The name

AMSC AMSC AMSC · 19 filings in 24 months ticker → Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by John W Kosiba JR in AMSC

AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $188K
5,026 sh × $37.33
Exec Jun 11
Filed Jun 11 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $136K
3,286 sh × $41.50
Exec Jun 8
Filed Jun 10 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $1.8M
35,700 sh across 5 lots
Exec Jun 2
Filed Jun 3 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $3.3M
59,843 sh across 3 lots
Exec Aug 4 2025
Filed Aug 6 2025 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $181K
6,342 sh × $28.55
Exec Jun 11 2025
Filed Jun 12 2025 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $151K
4,744 sh × $31.83
Exec Jun 6 2025
Filed Jun 9 2025 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $291K
11,860 sh × $24.50
Exec May 20 2025
Filed May 22 2025 · 5:30 PM ET AMSCSALE AMERICAN SUPERCONDUCTOR CORP /DE/ $1.4M
50,000 sh × $28.28
Exec Nov 4 2024
Filed Nov 6 2024 · 5:30 PM ET