# EDGAR Filing Document

**Accession Number:** 0000069633
**File Stem:** 0001140361-25-039261
**Filing Date:** 2025-10
**Character Count:** 2203
**Document Hash:** d5a6f31883ae3ac7076c7385559a76b9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-039261.hdr.sgml**: 20251024

**ACCESSION NUMBER**: 0001140361-25-039261

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20251024

**DATE AS OF CHANGE**: 20251024

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NAPCO SECURITY TECHNOLOGIES, INC
- **CENTRAL INDEX KEY:** 0000069633
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMMUNICATIONS EQUIPMENT, NEC [3669]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 112277818
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-10004
- **FILM NUMBER:** 251416252

**BUSINESS ADDRESS:**
- **STREET 1:** 333 BAYVIEW AVE
- **CITY:** AMITYVILLE
- **STATE:** NY
- **ZIP:** 11701
- **BUSINESS PHONE:** 631-842-9400

**MAIL ADDRESS:**
- **STREET 1:** 333 BAYVIEW AVE
- **CITY:** AMITYVILLE
- **STATE:** NY
- **ZIP:** 11701

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NAPCO SECURITY SYSTEMS INC
- **DATE OF NAME CHANGE:** 19920703

### UNITED STATES<br>

### SECURITIES AND EXCHANGE COMMISSION<br>

#### Washington, DC 20549

### SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of<br>

the Securities Exchange Act of 1934

#### Filed by the Registrant ☒

#### Filed by a Party other than the Registrant ☐
Check the appropriate box:

☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(a)(2))

☐ Definitive Proxy Statement

&nbsp;&nbsp;&nbsp;&nbsp;☒ Definitive Additional Materials

☐<br> Soliciting Material Pursuant to Section 240.14a-2

### NAPCO SECURITY TECHNOLOGIES, INC. <br>

#### (Name of Registrant as Specified In Its Charter) <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### (Name of Person(s) Filing Proxy Statement, if other than Registrant)

#### Payment of Filing Fee (Check the appropriate box):
☒ No fee required 

☐ Fee paid previously with preliminary materials. 

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11

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