AMSC director awarded 3,116 common shares

Dambier Laura A. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Dambier Laura A. reported acquisition or exercise transactions in this Form 4 filing.

American Superconductor (AMSC) director Laura A. Dambier received an equity grant of 3,116 shares of common stock. The shares were awarded at no cash cost to her and vested immediately under the company’s Amended and Restated 2007 Director Stock Plan.

After this grant, she directly holds 18,992 American Superconductor common shares, reflecting routine stock-based compensation for board service rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 3,116 shares

Grant/Award 1 txn

Insider Dambier Laura A.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,116	$0.00	$0.00

Holdings After Transaction: Common Stock — 18,992 shares (Direct)

Footnotes (2)

1. F1. This award of immediately vested shares of American Superconductor Corporation (the "Company") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan, as Amended.
2. F2. Following all the transactions reported on this Form 4, the reporting person holds 18,992 shares directly.

Key Figures

Shares granted: 3,116 shares Grant price: $0.0000 per share Post-grant holdings: 18,992 shares

3 metrics

Shares granted 3,116 shares Award of immediately vested common stock to director

Grant price $0.0000 per share Reported transaction price for the stock award

Post-grant holdings 18,992 shares Director’s direct AMSC holdings after this Form 4

Key Terms

Form 4, immediately vested shares, Amended and Restated 2007 Director Stock Plan, Grant, award, or other acquisition

4 terms

Form 4 regulatory

"Following all the transactions reported on this Form 4, the reporting person holds 18,992 shares directly."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

immediately vested shares financial

"This award of immediately vested shares of American Superconductor Corporation common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan, as Amended."

Amended and Restated 2007 Director Stock Plan financial

"made in accordance with the Company's Amended and Restated 2007 Director Stock Plan, as Amended."

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AMSC director Laura A. Dambier report?

Laura A. Dambier reported receiving 3,116 shares of American Superconductor common stock as an award. The shares were granted at no cash cost and represent stock-based compensation rather than an open-market trade, reflecting standard director equity incentives.

How many AMSC shares does Laura A. Dambier hold after this Form 4 filing?

Following the reported award, Laura A. Dambier directly holds 18,992 shares of American Superconductor common stock. This figure comes after giving effect to all transactions disclosed in the Form 4, as noted in the accompanying footnote.

Was the AMSC stock grant to Laura A. Dambier immediately vested?

Yes. The 3,116-share award to Laura A. Dambier consists of immediately vested common stock. The grant was made in accordance with American Superconductor’s Amended and Restated 2007 Director Stock Plan, providing directors with fully vested equity compensation.

Did Laura A. Dambier buy or sell AMSC shares on the open market?

No open-market purchase or sale occurred in this filing. The transaction reflects a grant or award acquisition of 3,116 AMSC shares, with a reported price of $0.0000 per share, indicating compensation rather than a market trade.

What plan governed Laura A. Dambier’s AMSC stock award?

The award was made under American Superconductor’s Amended and Restated 2007 Director Stock Plan, as amended. This plan governs equity compensation for directors, including immediately vested grants of common stock like the 3,116-share award reported here.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/07/2026 - 05:33 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dambier Laura A.

(Last) (First) (Middle)

C/O AMERICAN SUPERCONDUCTOR CORPORATION

114 EAST MAIN STREET

(Street)

AYER MASSACHUSETTS 01432

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMERICAN SUPERCONDUCTOR CORP /DE/ [ AMSC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/03/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/03/2026(1)		A		3,116	A	$0	18,992(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This award of immediately vested shares of American Superconductor Corporation (the "Company") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan, as Amended.

2. Following all the transactions reported on this Form 4, the reporting person holds 18,992 shares directly.

	/s/ John R. Samia, Attorney-in-Fact	04/07/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)