Napco Security Technologies, Inc (NSSC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

35,915,000Shares Outstanding

32,023,577Shares held by institutions

$1,459,634,640Value of institutional holdings

89.16%Institutional ownership %

1.51%Shares Changed QoQ

248No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Napco Security Technologies, Inc (NASDAQ:NSSC) has 248 institutional investors that have filed 13F reports for the period ending December 2025.

These investors held 87.9% of outstanding shares in December 2025, down from 90.4% in September 2025.
They increased total shares held in Napco Security Technologies by 0.46% from last quarter, and the number of investors in NSSC decreased 0.4% annually.
Of these 248 holders, 114 added to their stakes in Napco Security Technologies, 94 trimmed positions, and 40 made no changes.
Institutional investors collectively held 31.57Mn shares in Napco Security Technologies as of December 2025, up by 144.3K shares quarter on quarter, and down 2.9Mn shares year over year.
CONGRESS ASSET MANAGEMENT CO holds the largest position in NSSC at 252.4K shares as of December 31, 2025, or 0.7% of shares outstanding.
Top purchasers of NSSC stock for the quarter ending December 2025 included CONGRESS ASSET MANAGEMENT CO (71.01K), DEPRINCE RACE & ZOLLO INC (46.74K), Linden Thomas Advisory Services, LLC (28.4K), WASATCH ADVISORS LP (23.47K), Ellsworth Advisors, LLC (18.77K).
The biggest sellers of Napco Security Technologies for the quarter ending December 2025 included SG Americas Securities, LLC (18.35K), Laurus Global Equity Management Inc. (7.19K), SENTINEL PENSION ADVISORS, LLC (2.5K), STRS OHIO (500), Farther Finance Advisors, LLC (260).
Per Business Quant data, the top 10 holders of Napco Security Technologies for the quarter ending December 2025 are CONGRESS ASSET MANAGEMENT CO (252.4K), WASATCH ADVISORS LP (242.58K), DEPRINCE RACE & ZOLLO INC (118.76K), Linden Thomas Advisory Services, LLC (72.47K), Vest Financial, LLC (45.4K), Laurus Global Equity Management Inc. (35.35K), HERITAGE INVESTORS MANAGEMENT CORP (29.1K), State of Alaska, Department of Revenue (24.29K), SG Americas Securities, LLC (24.22K), Ellsworth Advisors, LLC (18.77K).

248 Institutional Holders

32,023,577 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	3,224,505	340,620	11.81%	$134,461,841.00
VANGUARD GROUP INC	31 Dec, 2025	2,882,063	31,644	1.11%	$120,182,028.00
Fundsmith LLP	31 Dec, 2025	1,779,857	0	0.00%	$74,220,037.00
Janus Henderson Group Plc	31 Dec, 2025	1,569,363	45,093	2.96%	$65,456,792.00
Copeland Capital Management, LLC	31 Dec, 2025	1,420,792	-76,720	-5.12%	$59,247,043.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,028,863	4,324	0.42%	$42,910,018.00
State Street Corp	31 Dec, 2025	896,315	112,495	14.35%	$37,483,645.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	879,298	-129,559	-12.84%	$36,666,727.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	864,022	2,881	0.33%	$36,029,717.00
Divisadero Street Capital Management, LP	31 Dec, 2025	809,729	698,163	625.78%	$33,765,699.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	714,382	148,488	26.24%	$29,789,729.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	671,243	-6,842	-1.01%	$27,991,180.00
Doma Perpetual Capital Management LLC	31 Dec, 2025	627,931	-537,416	-46.12%	$26,184,723.00
Goldman Sachs Group Inc	31 Dec, 2025	620,538	369,964	147.65%	$25,876,474.00
Northern Trust Corp	31 Dec, 2025	597,918	-42,399	-6.62%	$24,933,180.00
Royal Bank Of Canada	31 Dec, 2025	580,557	-65,707	-10.17%	$24,211,000.00
Morgan Stanley	31 Dec, 2025	423,516	42,922	11.28%	$17,660,665.00
JACOBS LEVY EQUITY MANAGEMENT, INC	31 Dec, 2025	414,990	-23,337	-5.32%	$17,305,083.00
Qube Research & Technologies Ltd	31 Dec, 2025	376,227	-44,581	-10.59%	$15,688,666.00
ENVESTNET ASSET MANAGEMENT INC	31 Dec, 2025	365,742	-56,355	-13.35%	$15,251,459.00

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