Company · Ownership research

NAPCO SECURITY TECHNOLOGIES, INC NSSC

CIK 0000069633

Form 4 transactions dated Sep 1, 2023 to Sep 23, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-08-28.

Insider purchases & sales

Purchased: $0.00
Sold: $132.69M

Sep 1, 2023 – Aug 28, 2026
Available records · partial months are marked ·

20267 of 7 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2026-08-27	Soloway Donna Anne Director	Sale	$725.70K 20,962 shares sold	100.00% sold Direct holding	▾
2026-08-27	SOLOWAY RICHARD Founder and Executive Chairman · Director	Sale	$13.09M 379,529 shares sold	37.90% sold Direct holding	▾
2026-08-26	Soloway Donna Anne Director	Sale	$1.01M 28,000 shares sold	57.19% sold Direct holding	▾
2026-08-26	SOLOWAY RICHARD Founder and Executive Chairman · Director	Sale	$3.43M 95,471 shares sold	8.70% sold Direct holding	▾
2026-03-03	SOLOWAY RICHARD CEO, Chairman of Board, Secy · Director	Sale	$2.39M 55,318 shares sold	4.80% sold Direct holding	▾
2026-03-02	SOLOWAY RICHARD CEO, Chairman of Board, Secy · Director	Sale	$5.83M 129,682 shares sold	10.12% sold Direct holding	▾
2026-02-05	SOLOWAY RICHARD CEO, Chairman of Board, Secy · Director	Sale	$6.41M 150,000 shares sold	10.67% sold Direct holding	▾

Showing 7 / 7 record groups in 2026. The complete set is available through the API.

NAPCO SECURITY TECHNOLOGIES, INC · NSSC

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 7 of 7 purchase / sale groups and 20 of 20 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"NSSC","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.