Key facts
- This page summarizes Michael Carrieri's Form 4 filing for NAPCO SECURITY TECHNOLOGIES, INC (NSSC).
- 3 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 27 Feb 2026, 16:02.
Michael Carrieri - 26 Feb 2026 Form 4 Insider Report for NAPCO SECURITY TECHNOLOGIES, INC (NSSC)
- Reporting relationship
- Executive VP of Engineering
- Issuer ticker
- NSSC
- Reported as of
- 26 Feb 2026
- Net transaction value
- -$314,127
- SEC form
- 4
- Accepted by SEC
- 27 Feb 2026, 16:02:09 UTC
- Prior SEC filing
- 18 Sep 2025
- Source filing
- View source filing
- Reporting owner signature
- Michael Carrieri
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Michael Carrieri filed Form 4 for NAPCO SECURITY TECHNOLOGIES, INC (NSSC) on 27 Feb 2026.
Change
- Previous filing in this sequence was filed on 18 Sep 2025.
- Current net transaction value: -$314,127.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001256086
Primary reporting owner
CARRIERI MICHAEL
- Relationship
- Executive VP of Engineering
- Address
- Not listed
- Signature
- Michael Carrieri
- Signature date
- 27 Feb 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
NSSC
transaction
Common Stock
Options Exercise
- Transaction value
- $224,950
- Shares
- +10,000
- Change %
- +43%
- Price
- $22.50
- Shares after
- 33,261
- Date
- 26 Feb 2026
- Ownership
- Direct
NSSC
transaction
Common Stock
Tax liability
- Transaction value
- $314,127
- Shares
- -6,651
- Change %
- -20%
- Price
- $47.23
- Shares after
- 26,610
- Date
- 26 Feb 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
- $224,950
- Shares
- -10,000
- Change %
- -100%
- Price
- $22.50
- Shares after
- 0
- Date
- 26 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 10,000
- Exercise price
- $22.50
NSSC
holding
Derivative
Employee Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,000
- Date
- 26 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 2,000
- Exercise price
- $26.94
- Footnotes
- F3
NSSC
holding
Derivative
Employee Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 50,000
- Date
- 26 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 50,000
- Exercise price
- $41.75
- Footnotes
- F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 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 and required tax withholdings in accordance with the 2012 Employee Stock Option Plan and stock option grant.
Footnote F2
Reflects a net increase of 3,349 shares resulting from the cashless exercise of 10,000 stock options as reflected in this Form.
Footnote F3
Exercisable with respect to 2,000 shares from August 25, 2026 until August 25, 2032.
Footnote F4
Exercisable, cumulatively, at 20% per year commencing May 2, 2024