AVISTA CORP SEC Filing

Avista Corporation stock is the subject of a notice to sell 1,785 shares of common stock under Rule 144, with an approximate sale date of December 16, 2025, through Citigroup Global Markets on the NYSE.

Accepted by SEC EDGAR 12/16/2025 - 09:35 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Avista Corporation stock is the subject of a notice to sell 1,785 shares of common stock under Rule 144, with an approximate sale date of December 16, 2025, through Citigroup Global Markets on the NYSE. The filing lists an aggregate market value of about $69,240.15 for these shares and shows 81,400,000 common shares outstanding.

The shares to be sold were acquired on January 10, 2025 as retained shares from Avista Corporation, with payment dated December 16, 2025 and described as compensation. The person for whose account the securities are to be sold represents that they do not know of any material adverse information about Avista’s current or prospective operations that has not been publicly disclosed, and this representation also applies if a Rule 10b5-1 trading plan or instructions were used.

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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	0001978840
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	AVISTA CORP
SEC File Number	001-03701
Address of Issuer	1411 E MISSION AVE SPOKANE WASHINGTON 99202
Phone	5094890500
Name of Person for Whose Account the Securities are To Be Sold	Manuel Wayne O
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	Senior Vice President

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 Stock	Citigroup Global Markets, Inc 390 Greenwich Street New York NY 10013	1785	69240.15	81400000	12/16/2025	NYSE

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 Stock	01/10/2025	Retained Shares	Avista Corporation			1785	12/16/2025	Compensation

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	12/16/2025
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	Conformed Signature On File
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)