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Napco Security Technologies, Inc. (NSSC)

Napco Security Technologies, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Napco Security Technologies, Inc. (NSSC) is a Security & Protection Services company based in US with a market capitalization of $1.3B. Revenue declined 3.8% year-over-year and the company generated $51.4M in free cash flow. This page tracks NSSC's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 1.07K employees · IPO Dec 29, 1981

Valuation

Valuation & price

$36.22 · as of May 17, 2026 · -23.3% vs 52w high

30.5

P/E ratio

Latest-FY diluted EPS

7.82

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$46.75$38.09$29.42Jul 25Dec 25Jul 26Jul 7, 25$29.42Jul 9, 25$30.20Jul 11, 25$30.86Jul 15, 25$30.20Jul 17, 25$30.85Jul 21, 25$30.44Jul 23, 25$30.55Jul 25, 25$30.42Jul 29, 25$30.89Jul 31, 25$30.53Aug 4, 25$30.99Aug 6, 25$29.59Aug 11, 25$29.72Aug 13, 25$32.45Aug 15, 25$30.49Aug 19, 25$30.80Aug 21, 25$30.39Aug 25, 25$33.64Aug 27, 25$38.41Aug 29, 25$38.05Sep 3, 25$39.76Sep 5, 25$39.52Sep 9, 25$40.10Sep 11, 25$41.49Sep 16, 25$42.93Sep 18, 25$41.99Sep 22, 25$42.43Sep 24, 25$43.42Sep 26, 25$43.14Sep 30, 25$42.95Oct 2, 25$42.70Oct 6, 25$43.52Oct 8, 25$43.91Oct 10, 25$41.94Oct 14, 25$42.98Oct 16, 25$43.19Oct 21, 25$43.75Oct 23, 25$43.93Oct 27, 25$44.10Oct 29, 25$43.76Oct 31, 25$44.15Nov 4, 25$41.35Nov 6, 25$42.82Nov 10, 25$42.35Nov 12, 25$41.95Nov 14, 25$40.35Nov 18, 25$39.30Nov 20, 25$38.00Nov 25, 25$40.54Nov 28, 25$40.40Dec 2, 25$39.88Dec 4, 25$40.93Dec 8, 25$42.10Dec 10, 25$42.08Dec 12, 25$42.09Dec 16, 25$42.42Dec 18, 25$43.81Dec 22, 25$42.37Dec 24, 25$41.94Dec 29, 25$42.05Jan 2, 26$41.38Jan 6, 26$42.18Jan 8, 26$42.25Jan 12, 26$42.42Jan 14, 26$39.49Jan 16, 26$38.60Jan 21, 26$38.15Jan 23, 26$38.53Jan 27, 26$38.48Jan 29, 26$38.30Feb 2, 26$41.02Feb 4, 26$43.73Feb 9, 26$43.02Feb 11, 26$43.00Feb 13, 26$44.15Feb 18, 26$43.49Feb 20, 26$45.86Feb 24, 26$45.97Feb 26, 26$46.65Mar 2, 26$44.67Mar 4, 26$43.57Mar 6, 26$41.16Mar 10, 26$43.40Mar 12, 26$42.15Mar 17, 26$43.59Mar 19, 26$42.32Mar 23, 26$42.67Mar 25, 26$41.50Mar 27, 26$38.31Mar 31, 26$39.39Apr 2, 26$39.87Apr 7, 26$41.51Apr 9, 26$42.08Apr 13, 26$44.00Apr 15, 26$44.21Apr 17, 26$45.38Apr 22, 26$45.29Apr 24, 26$45.91Apr 28, 26$45.65Apr 30, 26$46.75May 4, 26$39.61May 6, 26$41.24May 8, 26$40.82May 12, 26$38.29May 14, 26$37.52May 18, 26$36.08May 20, 26$36.72May 22, 26$37.41May 28, 26$36.77Jun 1, 26$35.27Jun 3, 26$35.99Jun 5, 26$34.96Jun 9, 26$35.14Jun 11, 26$36.43Jun 15, 26$37.57Jun 17, 26$36.06Jun 22, 26$37.50Jun 24, 26$37.42Jun 26, 26$37.29Jul 2, 26$37.79
$29.4252-week range$47.23
Loading valuation history…

Fundamentals

Key fundamentals

$1.3B

Market cap

-3.8%

Revenue growth (YoY)

55.6%

Gross margin

$51.4M

Free cash flow (USD)

-$93.8M

Net debt

Net cash position

-1.4%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Industrials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$82.5MFY 2017$87.4MFY 2018$91.7MFY 2019$102.9MFY 2020$101.4MFY 2021$143.6MFY 2022$143.6MFY 2023$170.0MFY 2024$188.8MFY 2025$181.6M
$82.5M$181.6M

Free cash flow by year

2016 → 2025

FY 2016$8.5MFY 2017$1.0MFY 2018$6.6MFY 2019$6.7MFY 2020$8.7MFY 2021$22.0MFY 2022$6.8MFY 2023$21.7MFY 2024$43.8MFY 2025$51.4M
$8.5M$51.4M

Gross margin by year

2021 → 2025

FY 202141.2%FY 202241.2%FY 202343.1%FY 202453.9%FY 202555.6%
41.2%55.6%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 5, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Quarterly report10-Q FiledMay 5, 2026Filing
  • 8-K eventEarnings ReleaseMay 4, 2026Filing

Questions

Frequently asked questions

What is Napco Security Technologies, Inc.'s market cap?

Napco Security Technologies, Inc. (NSSC) has a market capitalization of $1.3B.

What is NSSC's P/E ratio?

NSSC trades at a price-to-earnings ratio of 30.5, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is NSSC's price-to-book (P/B) ratio?

NSSC trades at 7.82 times book value per share.

Are insiders buying NSSC stock?

SEC Form 4 filings show no open-market insider buys at Napco Security Technologies, Inc. in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.