HARBOR CAPITAL ADVISORS, INC.

Position in NSSC — Napco Security Technologies, Inc

CIK 1039128 CHICAGO, IL

Position in NSSC

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$802,783

+$101,090 QoQ

Shares Held

21,137

+18.7% QoQ

Ownership

0.059%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

#118

of 256 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

HARBOR CAPITAL ADVISORS, INC. holds $3,520,864 across 6 Security & Protection Services names. NSSC ranks #3 (22.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BCO	Brinks Co	16,720	$1,579,872
2	GEO	Geo Group Inc	38,295	$1,131,617
3	NSSC	Napco Security Technologies, Inc This page	21,137	$802,783
4	MG	Mistras Group, Inc.	377	$6,586
5	CIX	Compx International Inc	177	$4
6	NL	Nli Holdings, Inc.	379	$2

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$802,783	21,137	+18.7%	Shares	Sole	2026-08-07
2026-03-31	$701,693	17,814	—	Shares	Sole	2026-04-28
No filing history on record for this holder in this stock.