OLIVER DAVID R JR

2.6

4.2

4.4

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings

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American Superconductor Corp (AMSC)

Transaction date 24 Feb 2026

Sale

Price

227.63

Quantity 91,578 -5.9%

Value US$4,755,604

Comments Filing

American Superconductor Corp (AMSC)

Transaction date 18 Jun 2019

Purchase

Price

303.45

Quantity 79,586 +11.6%

Value US$1,818,394

Comments Filing

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value	Details
2026-02-26	2026-02-24	American Superconductor Corp (AMSC)	S Sale	91,578 -5.9% 227.63 US$4,755,604	91,578 -5.9%	227.63	US$4,755,604
2025-11-13	2019-06-18	American Superconductor Corp (AMSC)	B Purchase	79,586 +11.6% 303.45 US$1,818,394	79,586 +11.6%	303.45	US$1,818,394