← All companies

NSSC — NAPCO SECURITY TECHNOLOGIES, INC

Information Technology · Communications Equipment, NEC · Nasdaq

CIK 0000069633 · FYE 0630 · All Form 4 filings on EDGAR ↗

Formerly: NAPCO SECURITY SYSTEMS INC (until 2009-11-16)

2Insiders filing

4Transactions

+$0Reported buys

−$18.3MReported sells

0Cluster events

Window in data: 2026-08-26 → 2026-08-27 · Data as of 2026-08-31

Insiders

Insider	Role	Txns	Reported value
SOLOWAY RICHARD	Founder and Executive Chairman	2	$16.5M
Soloway Donna Anne	Director	2	$1.7M

Transaction history

Filing date	Trade date	Ticker	Insider	Type	Shares	Price	Value	Cluster
2026-08-28	2026-08-27	NSSC	Soloway Donna Anne Director	S	20,962	$34.62	−$726k	—
2026-08-28	2026-08-27	NSSC	SOLOWAY RICHARD Founder and Executive Chairman	S	379,529	$34.50	−$13.1M	—
2026-08-28	2026-08-26	NSSC	Soloway Donna Anne Director	S	28,000	$35.98	−$1.0M	—
2026-08-28	2026-08-26	NSSC	SOLOWAY RICHARD Founder and Executive Chairman	S	95,471	$35.93	−$3.4M	—

Known data limitations

Form 4 lag: insiders have 2 business days to file after a trade (weekends and holidays extend this), and this site re-ingests once daily — a transaction can appear here roughly three business days after it happened.
13F lag: quarterly 13F-HR holdings cover the prior quarter-end and are due 45 days after it — every institutional position shown here is at least 45 days old by construction, often more.
CUSIP→ticker gaps: 13F positions are reported by CUSIP; some holdings cannot be matched to a current ticker (delistings, corporate actions, thin metadata) and appear without one or are omitted from ticker-level views.
EDGAR timing variability: institutions file at different hours and days within their windows; amended filings (4/A, 13F-HR/A) can restate earlier periods, so historical aggregates may change between batches.

Insider Atlas is a descriptive research site, not investment advice — see the methodology for the full provenance chain.