Institutional shares held 31.6 Million
39.1K calls
8.5K puts
Total value of holdings $1.38B
$1.71M calls
$372K puts
Market Cap $1.61B
36,734,500 Shares Out.
Institutional ownership 85.95%
# of Institutions 243


Latest Institutional Activity in NSSC

Top Purchases

Q3 2025
Sg Americas Securities, LLC Shares Held: 43K ($1.88M)
Q3 2025
Cboe Vest Financial, LLC Shares Held: 37.5K ($1.64M)
Q3 2025
Los Angeles Capital Management LLC Shares Held: 17.2K ($751K)
Q3 2025
Yorktown Management & Research CO Inc Shares Held: 9.9K ($434K)
Q3 2025
Strs Ohio Shares Held: 9.5K ($416K)

Top Sells

Q3 2025
Copeland Capital Management, LLC Shares Held: 1.5M ($65.6M)
Q3 2025
Congress Asset Management CO Shares Held: 175K ($7.68M)
Q3 2025
Emerald Advisers, LLC Shares Held: 466K ($20.4M)
Q3 2025
Emerald Mutual Fund Advisers Trust Shares Held: 189K ($8.3M)
Q3 2025
Rice Hall James & Associates, LLC Shares Held: 156K ($6.85M)

About NSSC

Napco Security Technologies, Inc. develops, manufactures, and sells electronic security products in the United States and internationally. The company offers access control systems, door-locking products, intrusion and fire alarm systems, and video surveillance systems for commercial, residential, institutional, industrial, and governmental applications. Its access control systems include various types of identification readers, control panels, PC-based computers, and electronically activated door-locking devices; and door locking devices comprise microprocessor-based electronic door locks with push button, card readers and bio-metric operation, door alarms, mechanical door locks, and simple dead bolt locks. The company's alarm systems include automatic communicators, cellular communication devices, control panels, combination control panels/digital communicators and digital keypad systems, fire alarm control panels, and area detectors; and video surveillance systems comprise video cameras, control panels, video monitors, or PCs. It also buys and resells various identification readers, video cameras, PC-based computers, and peripheral equipment for access control and video surveillance systems; offers school security products; and markets peripheral and related equipment manufactured by other companies. The company markets and sells its products primarily to independent distributors, dealers, and installers of security equipment. Napco Security Technologies, Inc. was founded in 1969 and is headquartered in Amityville, New York.


Insider Transactions at NSSC

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
12K Shares
From 1 Insiders
Exercise of conversion of derivative security 12K shares
Sell / Disposition
11.6K Shares
From 2 Insiders
Payment of exercise price or tax liability 6.58K shares
Open market or private sale 5K shares

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