Stephen M. Spinelli

CIK: 0001812385

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (50.0%)

Position reduction

Option Exercises (M)1 (25.0%)

Derivative conversions

Awards (A)0 (0.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (25.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

NSSC

NAPCO SECURITY TECHNOLOGIES, INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (4 total)

NSSC
NAPCO SECURITY TECHNOLOGIES, INC
Mar 17, 2026
Exercise(M)
Direct
14K shares at avg. $10.02$140K
NSSC
NAPCO SECURITY TECHNOLOGIES, INC
Mar 17, 2026
Tax Payment(F)
Direct
3.2K shares at avg. $43.59$140K
NSSC
NAPCO SECURITY TECHNOLOGIES, INC
Nov 17, 2025
Sale(S)
Direct
19K shares at avg. $40.25$765K
NSSC
NAPCO SECURITY TECHNOLOGIES, INC
Jun 6, 2025
Sale(S)
Direct
5K shares at avg. $29.16$146K

		Type	Shares	Price		Ownership
Mar 17, 2026	NSSC NAPCO SECURITY TECHNOLOGIES, INC	Exercise(M)	13,972	$10.02	$139,999	Direct
Mar 17, 2026	NSSC NAPCO SECURITY TECHNOLOGIES, INC	Tax Payment(F)	3,212	$43.59	$140,011	Direct
Nov 17, 2025	NSSC NAPCO SECURITY TECHNOLOGIES, INC	Sale(S)	19,000	$40.25	$764,750	Direct
Jun 6, 2025	NSSC NAPCO SECURITY TECHNOLOGIES, INC	Sale(S)	5,000	$29.16	$145,813	Direct

1-4 of 4 transactions

About Spinelli Stephen M

Spinelli Stephen M (SEC CIK 0001812385) files insider reports with the SEC as Senior Vice President of Sales of NAPCO SECURITY TECHNOLOGIES, INC (NSSC).

Signal8 holds 3 ownership filings by Spinelli Stephen M, all Form 4s, filed between Jun 6, 2025 and Mar 19, 2026. Those filings report 4 transactions, from Jun 6, 2025 to Mar 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Spinelli Stephen M's filings is in AMITYVILLE, NY.

Recent filings by Spinelli Stephen M

Mar 17, 2026: Option exercise of NSSC shares (Form 4, code M).
Mar 17, 2026: Tax withholding of NSSC shares (Form 4, code F).
Nov 17, 2025: Open-market sale of NSSC shares (Form 4, code S).
Jun 6, 2025: Open-market sale of NSSC shares (Form 4, code S).

Other insiders filing for NAPCO SECURITY TECHNOLOGIES, INC (NSSC)

BUCHEL KEVIN S, CEO and President
SOLOWAY RICHARD, Founder and Executive Chairman
Soloway Donna Anne, Director
CARRIERI MICHAEL, Executive VP of Engineering
Pipczynski Joseph Casmir, Chief Revenue Officer
BEEBER PAUL STEPHEN, Director

How to read Form 4 transaction codes