NSSC · Napco Security Technologies, Inc

Currently exercisable

Currently exercisable

Currently exercisable

Currently exercisable to the extent of 4,000 options, with the remaining 1,000 options exercisable on August 25, 2026.

Currently exercisable

Currently exercisable

Represents the number of shares withheld by the Reporting Person as a result of the cashless exercise of stock options, and used to pay the exercise price, in accordance with the 2012 Employee Stock Option Plan and stock option grant.

Reflects a net increase of 10,760 shares resulting from the cashless exercise of 13,972 stock options as reflected in this Form.

Represents the weighted average selling price of the shares. Actual selling prices ranged from $43.05 through $43.35 per share. The reporting person hereby undertakes to provide, upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected.

Represents the weighted average selling price of the shares. Actual selling prices ranged from $44.70 through $45.24 per share. The reporting person hereby undertakes to provide, upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected.

Represents the number of shares withheld by the Reporting Person as a result of the cashless exercise of stock options, and used to pay the exercise price and required tax withholdings in accordance with the 2012 Employee Stock Option Plan and stock option grant.

Reflects a net increase of 3,349 shares resulting from the cashless exercise of 10,000 stock options as reflected in this Form.

Represents the number of shares withheld by the Reporting Person as a result of the cashless exercise of stock options, and used to pay the exercise price and required tax withholdings in accordance with the 2012 Employee Stock Option Plan and stock option grant.

Reflects a net increase of 16,440 shares resulting from the cashless exercise of 50,000 stock options as reflected in this Form.

Exercisable on August 25, 2026 and exercisable until August 25, 2032.

Represents the number of shares withheld by the Reporting Person as a result of the cashless exercise of stock options, and used to pay the exercise price and required tax withholdings in accordance with the 2012 Employee Stock Option Plan and stock option grant.

Reflects a net increase of 25,948 shares resulting from the cashless exercise of 108,000 stock options as reflected in this Form.

Represents the number of shares withheld by the Reporting Person as a result of the cashless exercise of stock options, and used to pay the exercise price and required tax withholdings in accordance with the 2012 Employee Stock Option Plan and stock option grant.

Represents the weighted average selling price of the shares. Actual selling prices ranged from $42.20 through $43.48 per share. The reporting person hereby undertakes to provide, upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected.

Represents shares owned by the reporting person and used to pay exercise price.

Exercisable, cumulatively, at 20% per year commencing August 25, 2022.

Represents shares owned by the reporting person and used to pay exercise price.

Exercisable, cumulatively, at 20% per year commencing October 21, 2021.

Exercisable, cumulatively, at 20% per year commencing August 25, 2022.

Represents the weighted average selling price of the shares. Actual selling prices ranged from $37.10 through $37.14 per share. The reporting person hereby undertakes to provide, upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected.

Represents shares owned by the reporting person and used to pay exercise price.

Exercisable, cumulatively, at 20% per year commencing 08/25/2022

Represents shares owned by the reporting person and used to pay exercise price.

The shares described herein are subject to a lockup agreement in connection with that certain Underwriting Agreement, dated March 5, 2024, and were also subject to the option to purchase additional shares pursuant to such Underwriting Agreement. Such shares were not purchased pursuant to this option which has expired in accordance with its terms. The reporting person received prior written consent from the representatives of the underwriters to sell the shares in open market transactions. All other shares remain subject to the lockup agreement.

Represents the weighted average selling price of the shares. Actual selling prices ranged from $44.20 through $44.775 per share. The reporting person hereby undertakes to provide, upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected.