NSSCNapco Security Technologies, Inc.

$36.18-14% 1Y

Who owns NSSC

254 institutions reported holding NSSC for 2026Q2, together 96% of the company, fewer than the 266 a quarter earlier.

254

Institutions reporting a position · as of 2026Q2 · down from 266 the quarter before

Shares held by institutions
34.4M

Shares held by institutions · 96% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.31B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
40%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
30
Positions exited
42
Added to
97
Reduced
83
Top 10 holdersof the company
53%
Shares sold shortsettled Sep 15, 2026
2.6M
Short interestof shares outstanding
7.3%
Days to coverat the average daily volume
6.6
Change in the short positionsince the Aug 31, 2026 count
−2.6%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q225434.4M$1.31B
2026Q126633.6M$1.32B
2025Q425030.5M$1.27B
2025Q323730.8M$1.32B
2025Q221831.7M$941M
2025Q122530.9M$712M
2024Q424833.0M$1.18B
2024Q325833.1M$1.34B
2024Q226833.0M$1.71B
2024Q123331.2M$1.25B
2023Q418829.4M$1.01B
2023Q317328.3M$630M
2023Q222632.3M$1.12B
2023Q119430.1M$1.13B
2022Q416527.8M$764M
2022Q314925.2M$731M
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.5.6M16%$214M
VANGUARD GROUP INC3.3M9.3%$126M
Copeland Capital Management, LLC2.0M5.7%$77M
Jupiter Topco LLC1.7M4.7%$64M
STATE STREET CORP1.5M4.2%$57M
GEODE CAPITAL MANAGEMENT LLC1.2M3.4%$45M
WELLINGTON MANAGEMENT GROUP LLP1.1M3.1%$42M
MORGAN STANLEY1.0M2.7%$36M
DIMENSIONAL FUND ADVISORS LP0.7M2.0%$28M
ARROWSTREET CAPITAL LIMITED PARTNERSHIP0.7M2.0%$27M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20262.6M7.3%6.6
Aug 31, 20262.7M7.5%4.1
Aug 14, 20262.7M7.7%11.4
Jul 31, 20263.0M8.5%11.7
Jul 15, 20263.4M9.6%10.3
Jun 30, 20263.3M9.3%5.4
Jun 15, 20262.9M8.0%6.6
May 29, 20262.7M7.5%6.2
May 15, 20262.8M7.9%5.9
Apr 30, 20263.2M9.0%12.1
Apr 15, 20263.3M9.2%9.7
Mar 31, 20263.3M9.2%5.4

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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