13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Communications Equipment, NECCheap mega-capRe-rated
NSSC

NAPCO SEC TECHNOLOGIES INC

279 institutions still hold NAPCO SEC TECHNOLOGIES INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 630402105·Communications Equipment, NEC·279 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 9.5%
vs prior quarter
13F value held
$864M
64.0% inst. owned
of float
Holders
279
-115 QoQ
filers reporting
Activity
+44 / −16
+990 added · −790 reduced
this quarter
Concentration
25.91%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

279 institutions reported NSSC in Q1 2026. BlackRock, Inc. leads at 25.9% of the visible book. -115 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$224M5.7M0.00%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$59M1.5M0.00%Q1 202603
Copeland Capital Management, LLC
CIK 0001541743
$59M1.4M1.32%Q4 202504
Vanguard Portfolio Management
CIK 0002100121
$58M1.5M0.00%Q1 202605
STATE STREET CORP
CIK 0000093751
$57M1.4M0.00%Q1 202606
JANUS HENDERSON GROUP PLC
CIK 0001274173
$56M1.4M0.03%Q1 202607
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$44M1.1M0.00%Q1 202608
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$37M930K0.01%Q1 202609
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$33M846K0.02%Q1 202610
PRUDENTIAL FINANCIAL INC
CIK 0001137774
$30M750K0.04%Q1 202611
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$28M703K0.01%Q1 202612
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$27M685K0.02%Q1 202613
Doma Perpetual Capital Management LLC
CIK 0001962221
$25M628K6.64%Q1 202614
NORTHERN TRUST CORP
CIK 0000073124· Index
$23M584K0.00%Q1 202615
Point72 Asset Management, L.P.
CIK 0001603466
$19M482K0.02%Q1 202616
ROYAL BANK OF CANADA
CIK 0001000275
$19M477K0.00%Q1 202617
MORGAN STANLEY
CIK 0000895421
$18M465K0.00%Q1 202618
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$17M437K0.03%Q1 202619
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$16M413K0.07%Q1 202620
GOLDMAN SACHS GROUP INC
CIK 0000886982
$16M403K0.00%Q1 2026
Page 1 of 14
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