NAPCO SECURITY TECHNOLOGIES, INC

NSSCNASDAQ

$36.17-0.02 (-0.06%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

NAPCO SECURITY TECHNOLOGIES, INC price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-15.3%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	15.75%	$214M	0.00%	Not reported
Copeland Capital Management, LLC	5.64%	$76.6M	1.57%	Add 0.39%
Jupiter Topco LLC	4.70%	$63.9M	0.03%	Not reported
Vanguard Capital Management LLC	4.27%	$58M	0.00%	Not reported
State Street Corp	4.21%	$57.4M	0.00%	Not reported
Vanguard Portfolio Management LLC	4.18%	$56.8M	0.00%	Not reported
First Trust Advisors LP	3.65%	$49.5M	0.03%	Add 90.32%
Geode Capital Management, LLC	3.35%	$45.5M	0.00%	Not reported
Wellington Management Group LLP	3.08%	$41.9M	0.01%	Add 18.58%
Morgan Stanley	2.68%	$36.5M	0.00%	Not reported
Dimensional Fund Advisors LP	2.03%	$27.6M	0.01%	Not reported
Arrowstreet Capital, Limited Partnership	1.95%	$26.5M	0.01%	Not reported
Doma Perpetual Capital Management LLC	1.76%	$23.8M	5.54%	Not reported
Northern Trust Corp	1.71%	$23.2M	0.00%	Not reported
Fundsmith LLP	1.70%	$23.1M	0.17%	Add 58.23%
Bessemer Group Inc	1.20%	$16.4M	0.02%	Add 46.98%
Deprince Race & Zollo Inc	1.14%	$15.5M	0.26%	Add 244.07%
Royal Bank of Canada	1.14%	$15.4M	0.00%	Not reported
Renaissance Technologies LLC	1.14%	$15.4M	0.02%	Not reported
Point72 Asset Management, L.P.	1.06%	$14.4M	0.02%	Not reported
Envestnet Asset Management Inc	1.06%	$14.4M	0.00%	Not reported
Goldman Sachs Group Inc	1.03%	$14M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.99%	$13.5M	0.00%	Not reported
Bank of New York Mellon Corp	0.87%	$11.8M	0.00%	Not reported
AQR Capital Management LLC	0.83%	$11.2M	0.00%	Not reported
Congress Asset Management Co	0.80%	$10.8M	0.07%	Add 13.10%
Captrust Financial Advisors	0.78%	$10.6M	0.02%	Not reported
Federated Hermes, Inc.	0.78%	$10.5M	0.02%	Not reported
Prudential Financial Inc	0.77%	$10.4M	0.01%	Not reported
Los Angeles Capital Management LLC	0.77%	$10.4M	0.04%	Not reported
Granite Investment Partners, LLC	0.74%	$10.1M	0.52%	Not reported
Visionary Wealth Advisors	0.73%	$9.96M	0.39%	Not reported
Trexquant Investment LP	0.73%	$9.93M	0.06%	Not reported
Russell Investments Group, Ltd.	0.72%	$9.74M	0.01%	Not reported
Nuveen, LLC	0.71%	$9.71M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.71%	$9.65M	0.00%	Not reported
Wasatch Advisors LP	0.68%	$9.21M	0.06%	Not reported
Principal Financial Group Inc	0.64%	$8.74M	0.00%	Not reported
Healthcare of Ontario Pension Plan Trust Fund	0.63%	$8.52M	0.01%	Add 596.30%
Crawford Investment Counsel Inc	0.63%	$8.5M	0.14%	Add 60.67%
JPMorgan Chase & Co	0.60%	$8.07M	0.00%	Not reported
Jacobs Levy Equity Management, Inc	0.56%	$7.66M	0.03%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.55%	$7.45M	0.00%	Not reported
Invesco Ltd.	0.53%	$7.25M	0.00%	Not reported
New York State Common Retirement Fund	0.52%	$7.07M	0.01%	Not reported
Gamco Investors, Inc. Et Al	0.50%	$6.79M	0.06%	Not reported
Rockefeller Capital Management L.P.	0.50%	$6.79M	0.01%	Not reported
Two Sigma Investments, LP	0.48%	$6.56M	0.00%	Not reported
SG Capital Management LLC	0.48%	$6.49M	0.54%	Not reported
Kornitzer Capital Management Inc	0.47%	$6.41M	0.13%	Reduce 0.38%

50 of 241 holders

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