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Disclosery

NSSC NAPCO SEC TECHNOLOGIES INC

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Stock (common), issuer CIK 69633

249 managers (258 13F filers) reported a position in NSSC shares at 2026-06-30, 36,108,671 shares in all. 28 filers opened a position and 37 filers sold out during the quarter.

Managers
249
13F filers
258
New
28
Added
106
Reduced
90
Sold out
37
Shares held by filers
36,108,671

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Pinnacle Wealth Planning Services, Inc.582$22.1K<0.01%+51513F-HRTimeline
Truvestments Capital LLC568$21.6K<0.01%+113F-HRTimeline
IFP Advisors, Inc563$21.4K<0.01%-21913F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\536$20.4K<0.01%-1413F-HRTimelineGroup
Centerpoint Advisors, LLC537$20K0.01%+8513F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC497$18.9K<0.01%-1813F-HR/ATimeline
SIGNATUREFD, LLC402$15.3K<0.01%-42013F-HRTimeline
Financial Management Professionals, Inc.387$14.8K<0.01%013F-HRTimeline
Aster Capital Management (DIFC) Ltd373$14.2K<0.01%new13F-HR/ATimeline
FIRST HORIZON CORP329$12.5K<0.01%-31613F-HRTimeline
Allworth Financial LP318$12.1K<0.01%-1113F-HRTimeline
Essential Partners LLC312$11.8K0.01%-92913F-HRTimeline
Institute for Wealth Management, LLC.224$8.51K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.216$8.2K<0.01%new13F-HRTimelineGroup
Financial Network Wealth Advisors LLC205$7.79K0.01%-1613F-HRTimeline
WPG Advisers, LLC179$6.8K<0.01%013F-HRTimeline
AMERIFLEX GROUP, INC.171$6.5K<0.01%new13F-HRTimeline
Synergy Investment Management, LLC152$5.53K<0.01%new13F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO139$5.28K<0.01%-21813F-HRTimelineGroup
Sterling Capital Management LLC123$4.67K<0.01%-10113F-HRTimeline
SUMMIT SECURITIES GROUP LLC109$4.14K<0.01%new13F-HRTimeline
Parallel Advisors, LLC106$4.03K<0.01%013F-HRTimeline
WOLFF WIESE MAGANA LLC100$3.8K<0.01%013F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC95$3.61K<0.01%+1513F-HRTimeline
True Wealth Design, LLC93$3.53K<0.01%-1013F-HRTimeline
ROTHSCHILD INVESTMENT LLC85$3.23K<0.01%-1213F-HRTimeline
SBI Securities Co., Ltd.69$2.62K<0.01%-2113F-HRTimeline
Steward Partners Investment Advisory, L…67$2.54K<0.01%013F-HRTimeline
Smartleaf Asset Management LLC61$2.27K<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB55$2.09K<0.01%new13F-HRTimeline
GLOBEFLEX CAPITAL L P50$1.9K<0.01%new13F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC50$1.9K<0.01%013F-HRTimelineGroup
Quarry LP45$1.71K<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC44$1.67K<0.01%013F-HR/ATimeline
CoreCap Advisors, LLC42$1.59K<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…35$1.33K<0.01%new13F-HRTimelineGroup
Westfuller Advisors, LLC28$1.05K<0.01%+113F-HRTimeline
UMB Bank, n.a.27$1.02K<0.01%+1013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Covestor Ltd23$1K<0.01%+813F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…20$760<0.01%013F-HRTimelineGroup
Caitong International Asset Management …15$570<0.01%+513F-HRTimeline
JFS WEALTH ADVISORS, LLC10$382<0.01%new13F-HRTimeline
Rosenberg Matthew Hamilton7$266<0.01%013F-HRTimeline
Abound Wealth Management4$152<0.01%013F-HRTimeline
GHP Investment Advisors, Inc.2$76<0.01%013F-HRTimeline
Davis Capital Management2$76<0.01%new13F-HRTimeline
Silver Grove Financial Group, Inc.2$76<0.01%new13F-HRTimeline
Larson Financial Group LLC1$38<0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…1$38<0.01%-2713F-HRTimeline