BUKS · Butler National Corp

Represents an award of 20,222 shares of restricted common stock. Of these shares, 6,740 vested immediately on the grant date. The remaining 13,482 shares vest in two equal installments of 6,741 shares on the first and second anniversaries of the grant date, subject to continued service. Shares reported as disposed of under Transaction Code F were withheld by the issuer solely to satisfy the reporting person's tax withholding obligations arising from the immediate vesting of 6,740 shares.

This transaction was executed in multiple trades at prices ranging from $4.55 to $4.75 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

In addition to Zeff Capital LP, a Delaware limited partnership ("Zeff Capital"), this Form 4 is being filed jointly by Zeff Holding Company, LLC, a Delaware limited liability company ("Zeff Holding"), and Daniel Zeff, a citizen of the United States of America, each of whom has the same business address as Zeff Capital.

(Continued from footnote 1) Zeff Holding, as the general partner of Zeff Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Zeff Holding disclaims beneficial ownership of such shares for all other purposes, except to the extent of its pecuniary interest therein. Mr. Zeff, as the manager of Zeff Holding, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Zeff disclaims beneficial ownership of such shares for all other purposes, except to the extent of his pecuniary interest therein.

This transaction was executed in multiple trades at prices ranging from $4.45 to $4.47 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

In addition to Zeff Capital LP, a Delaware limited partnership ("Zeff Capital"), this Form 4 is being filed jointly by Zeff Holding Company, LLC, a Delaware limited liability company ("Zeff Holding"), and Daniel Zeff, a citizen of the United States of America, each of whom has the same business address as Zeff Capital.

(Continued from footnote 1) Zeff Holding, as the general partner of Zeff Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Zeff Holding disclaims beneficial ownership of such shares for all other purposes, except to the extent of its pecuniary interest therein. Mr. Zeff, as the manager of Zeff Holding, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Zeff disclaims beneficial ownership of such shares for all other purposes, except to the extent of his pecuniary interest therein.

In addition to Zeff Capital LP, a Delaware limited partnership ("Zeff Capital"), this Form 4 is being filed jointly by Zeff Holding Company, LLC, a Delaware limited liability company ("Zeff Holding"), and Daniel Zeff, a citizen of the United States of America, each of whom has the same business address as Zeff Capital.

(Continued from footnote 1) Zeff Holding, as the general partner of Zeff Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Zeff Holding disclaims beneficial ownership of such shares for all other purposes, except to the extent of its pecuniary interest therein. Mr. Zeff, as the manager of Zeff Holding, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Zeff disclaims beneficial ownership of such shares for all other purposes, except to the extent of his pecuniary interest therein.

Represents shares previously reported on Form 4 in connection with a restricted stock award granted on May 15, 2025, which were withheld by the issuer to satisfy tax withholding obligations arising from the vesting of 17,241 shares.

Director Fee

This transaction was executed in multiple trades at prices ranging from $3.09 to $3.18. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

In addition to Zeff Capital LP, a Delaware limited partnership ("Zeff Capital"), this Form 4 is being filed jointly by Zeff Holding Company, LLC, a Delaware limited liability company ("Zeff Holding"), and Daniel Zeff, a citizen of the United States of America, each of whom has the same business address as Zeff Capital

(Continued from footnote 2) Zeff Holding, as the general partner of Zeff Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Zeff Holding disclaims beneficial ownership of such shares for all other purposes, except to the extent of its pecuniary interest therein. Mr. Zeff, as the manager of Zeff Holding, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Zeff disclaims beneficial ownership of such shares for all other purposes, except to the extent of his pecuniary interest therein.

This transaction was executed in multiple trades at prices ranging from $3.06 to $3.07. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

In addition to Zeff Capital LP, a Delaware limited partnership ("Zeff Capital"), this Form 4 is being filed jointly by Zeff Holding Company, LLC, a Delaware limited liability company ("Zeff Holding"), and Daniel Zeff, a citizen of the United States of America, each of whom has the same business address as Zeff Capital

(Continued from footnote 2) Zeff Holding, as the general partner of Zeff Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Zeff Holding disclaims beneficial ownership of such shares for all other purposes, except to the extent of its pecuniary interest therein. Mr. Zeff, as the manager of Zeff Holding, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Zeff disclaims beneficial ownership of such shares for all other purposes, except to the extent of his pecuniary interest therein.

This transaction was executed in multiple trades at prices ranging from $3.10 to $3.16. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

In addition to Zeff Capital LP, a Delaware limited partnership ("Zeff Capital"), this Form 4 is being filed jointly by Zeff Holding Company, LLC, a Delaware limited liability company ("Zeff Holding"), and Daniel Zeff, a citizen of the United States of America, each of whom has the same business address as Zeff Capital

(Continued from footnote 2) Zeff Holding, as the general partner of Zeff Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Zeff Holding disclaims beneficial ownership of such shares for all other purposes, except to the extent of its pecuniary interest therein. Mr. Zeff, as the manager of Zeff Holding, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Zeff Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Zeff disclaims beneficial ownership of such shares for all other purposes, except to the extent of his pecuniary interest therein.