AMSC shareholder plans $603K sale of 16K shares

Daniel McGahn reported sales of Common Stock under Rule 144.

Rhea-AI Filing Summary

Daniel McGahn reported sales of Common Stock under Rule 144. The filing lists three reported transactions: 06/02/2026 sale of 72,525 shares for $3,682,892.03, 06/03/2026 sale of 12,893 shares for $630,265.28, and 06/08/2026 sale of 9,670 shares for $403,996.16. The excerpt also shows 16,117 Restricted Stock listed with 06/10/2026 and an issuer designation.

Insights

Securities Compliance Attorney

Rule 144 sales reported by an individual with multiple dated transactions.

All transactions in the excerpt are catalogued as sales of Common Stock by Daniel McGahn on 06/02/2026, 06/03/2026, and 06/08/2026, with explicit share counts and gross amounts. The filing also lists 16,117 Restricted Stock associated with the issuer on 06/10/2026.

These entries are routine transaction disclosures under resale rules. Cash‑flow treatment and holding status after the transactions are not stated in the provided excerpt; subsequent filings may provide additional position detail.

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Accepted by SEC EDGAR 06/11/2026 - 04:18 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001425153
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	AMERICAN SUPERCONDUCTOR CORPORATION
SEC File Number	000-19672
Address of Issuer	114 East Main Street Ayer MASSACHUSETTS 01432
Phone	(978) 842-3000
Name of Person for Whose Account the Securities are To Be Sold	DANIEL MCGAHN
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	16117	603502.68	47694445	06/11/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/10/2026	Restricted Stock	ISSUER			16117	06/10/2026	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
DANIEL MCGAHN 114 East Main Street Ayer MA 01432	Common	06/08/2026	9670	403996.16
DANIEL MCGAHN 114 East Main Street Ayer MA 01432	Common	06/03/2026	12893	630265.28
DANIEL MCGAHN 114 East Main Street Ayer MA 01432	Common	06/02/2026	72525	3682892.03

144: Remarks and Signature

Remarks
Date of Notice	06/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/26/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Patrick McGahn
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)