Stephen M. Spinelli - 17 Mar 2026 Form 4 Insider Report for NAPCO SECURITY TECHNOLOGIES, INC (NSSC)

Reporting relationship: Senior Vice President of Sales
Issuer ticker: NSSC
Reported as of: 17 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 Mar 2026, 16:08:51 UTC
Prior SEC filing: 18 Nov 2025
Source filing: View source filing
Reporting owner signature: Stephen Spinelli

Key filing fact

Stephen M. Spinelli filed Form 4 for NAPCO SECURITY TECHNOLOGIES, INC (NSSC) on 19 Mar 2026.

Key facts

This page summarizes Stephen M. Spinelli's Form 4 filing for NAPCO SECURITY TECHNOLOGIES, INC (NSSC).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 19 Mar 2026, 16:08.

Change

Previous filing in this sequence was filed on 18 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001812385 Primary reporting owner

Spinelli Stephen M

Relationship: Senior Vice President of Sales
Address: 333 BAYVIEW AVENUE, AMITYVILLE
Signature: Stephen Spinelli
Signature date: 19 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NSSC transaction

Common Stock

Options Exercise

Transaction value
Shares: +13,972
Change %: +1506%
Price: $10.02^*
Shares after: 14,900
Date: 17 Mar 2026
Ownership: Direct

NSSC transaction

Common Stock

Tax liability

Transaction value
Shares: -3,212
Change %: -22%
Price: $43.59^*
Shares after: 11,688
Date: 17 Mar 2026
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NSSC transaction Derivative

Employee Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -13,972
Change %: -58%
Price: $10.02^*
Shares after: 9,980
Date: 17 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 13,972
Exercise price: $10.02

NSSC holding Derivative

Employee Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 5,000
Date: 17 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,000
Exercise price: $26.94
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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.

Footnote F2

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

Footnote F3

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