CONGRESS ASSET MANAGEMENT CO

Position in NSSC — Napco Security Technologies, Inc

CIK 897378 BOSTON, MA

Position in NSSC

as of Sep 30, 2026 · filed Oct 6, 2026 Compact

Position Value

$10,841,944

+$98 QoQ

Shares Held

304,378

+6.6% QoQ

Ownership

0.851%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

of 6 holders

Holding Since

Mar 2023

15 quarters on record

Voting authority Sole 74% Shared 0% None 26%

Industrials · as of Sep 30, 2026

CONGRESS ASSET MANAGEMENT CO holds $10,841,944 across 1 Security & Protection Services name. NSSC ranks #1 (100.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	NSSC	Napco Security Technologies, Inc This page	304,378	$10,841,944

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-09-30	$10,841,944	304,378	+6.6%	Shares	Sole	2026-10-06
2026-06-30	$10,841,846	285,462	+13.1%	Shares	Sole	2026-07-07
2026-03-31	$9,942,114	252,402	+39.1%	Shares	Sole	2026-04-14
2025-12-31	$7,564,088	181,393	+3.5%	Shares	Sole	2026-01-09
2025-09-30	$7,530,767	175,338	-33.2%	Shares	Sole	2025-10-10
2025-06-30	$7,793,446	262,494	-5.8%	Shares	Sole	2025-07-16
2025-03-31	$6,417,883	278,796	-0.3%	Shares	Sole	2025-04-11
2024-12-31	$9,945,065	279,670	+94.4%	Shares	Sole	2025-01-30
2024-09-30	$5,820,899	143,868	-1.0%	Shares	Sole	2024-10-28
2024-06-30	$7,547,763	145,289	-1.1%	Shares	Sole	2024-08-02
2024-03-31	$5,901,552	146,951	-3.1%	Shares	Sole	2024-04-11
2023-12-31	$5,194,629	151,668	+0.1%	Shares	Sole	2024-03-04
2023-09-30	$3,370,229	151,471	+95.3%	Shares	Sole	2023-11-01
2023-06-30	$2,687,523	77,562	+0.6%	Shares	Sole	2023-07-27
2023-03-31	$2,896,967	77,088	—	Shares	Sole	2023-04-21
No filing history on record for this holder in this stock.