Latest Period
Q2 2026
Security Snapshot
NAPCO SECURITY TECHNOLOGIES, INC - Common Stock (NSSC) Institutional Ownership
CUSIP: 630402105
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
258
Shares (Excl. Options)
36,108,671
Price
$37.98
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- Security type / class
- Equity / Common Stock
- Symbol
- NSSC on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 36,108,671
- Total 13F value
- $1,371,576,049
- Portfolio coverage rank
- 0%
- Share change
- +1,319,167
- Value change
- +$49,056,531
- Number of holders
- 258
- Shares outstanding
- 35,696,867
- SEC-reported price per share
- $36.07
- Insider filing price
- $36.07
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- NSSC - NAPCO SECURITY TECHNOLOGIES, INC - Common Stock is tracked under CUSIP 630402105.
- 258 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 270 to 258 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,366,061,528 to $1,371,576,049.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 258 institutions filings for Q2 2026.
Security key
630402105
Latest holder period
Q2 2026
13F holders
258
13D/G owners
4
CIK / CUSIP context first
Open Q2 2026 holders
NSSC full holder history
NAPCO SECURITY TECHNOLOGIES, INC SEC filings
NAPCO SECURITY TECHNOLOGIES, INC company facts
NAPCO SECURITY TECHNOLOGIES, INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 630402105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
NSSC
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | +89% | $210,755,020 | +$99,734,371 | 5,350,443 | +90% | BlackRock, Inc. | 31 Mar 2026 |
| Copeland Capital Management, LLC | 5.6% | +0.83% | $72,748,609 | +$280,805 | 2,016,873 | +0.39% | Copeland Capital Management, LLC | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5% | $64,722,926 | 1,794,370 | Vanguard Capital Management | 30 Jun 2026 | |||
| FMR LLC | 3% | $24,911,405 | 1,094,045 | FMR LLC | 31 Mar 2025 |
As of 30 Jun 2026, 258 institutional investors reported holding 36,108,671 shares of NAPCO SECURITY TECHNOLOGIES, INC - Common Stock (NSSC). This represents 101% of the company’s total 35,696,867 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
71%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 5,632,646 | -0.86% | 0% | $213,927,882 |
| Copeland Capital Management, LLC | 5.7% | 2,016,873 | +0.39% | 1.6% | $76,600,869 |
| Jupiter Topco LLC | 4.7% | 1,682,208 | 0% | 0.03% | $63,855,193 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3% | 1,526,818 | +1.4% | 0% | $57,988,548 |
| STATE STREET CORP | 4.2% | 1,504,759 | +5.1% | 0% | $57,365,807 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.2% | 1,494,431 | +2.1% | 0% | $56,758,489 |
| FIRST TRUST ADVISORS LP | 3.7% | 1,304,074 | +90% | 0.03% | $49,528,730 |
| GEODE CAPITAL MANAGEMENT, LLC | 3.4% | 1,196,951 | +8% | 0% | $45,467,034 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.1% | 1,102,280 | +19% | 0.01% | $41,864,595 |
| MORGAN STANLEY | 2.7% | 959,777 | +106% | 0% | $36,452,347 |
| DIMENSIONAL FUND ADVISORS LP | 2% | 725,550 | +3.2% | 0% | $27,555,025 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2% | 697,937 | -18% | 0.01% | $26,507,647 |
| Doma Perpetual Capital Management LLC | 1.8% | 627,931 | 0% | 5.5% | $23,848,819 |
| NORTHERN TRUST CORP | 1.7% | 610,616 | +4.5% | 0% | $23,191,196 |
| Fundsmith LLP | 1.7% | 606,974 | +58% | 0.17% | $23,052,873 |
| BESSEMER GROUP INC | 1.2% | 430,452 | +47% | 0.02% | $16,350,000 |
| DEPRINCE RACE & ZOLLO INC | 1.1% | 408,632 | +244% | 0.26% | $15,519,843 |
| ROYAL BANK OF CANADA | 1.1% | 406,408 | -15% | 0% | $15,435,000 |
| RENAISSANCE TECHNOLOGIES LLC | 1.1% | 406,200 | -7% | 0.02% | $15,427,476 |
| Point72 Asset Management, L.P. | 1.1% | 379,686 | -21% | 0.02% | $14,420,474 |
| ENVESTNET ASSET MANAGEMENT INC | 1.1% | 378,803 | +0.84% | 0% | $14,386,927 |
| GOLDMAN SACHS GROUP INC | 1% | 369,290 | -8.4% | 0% | $14,025,653 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.99% | 354,531 | +4.7% | 0% | $13,465,087 |
| Bank of New York Mellon Corp | 0.87% | 311,009 | +2.7% | 0% | $11,812,134 |
| AQR CAPITAL MANAGEMENT LLC | 0.83% | 295,923 | +3.8% | 0% | $11,239,166 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 36,108,671 | $1,371,576,049 | +$49,056,531 | $37.98 | 258 |
| 2026 Q1 | 34,675,803 | $1,366,061,528 | +$107,902,383 | $39.39 | 270 |
| 2025 Q4 | 31,604,650 | $1,318,076,518 | -$10,375,001 | $41.70 | 253 |
| 2025 Q3 | 31,802,609 | $1,366,019,283 | -$9,620,208 | $42.95 | 238 |
| 2025 Q2 | 32,261,377 | $957,961,688 | +$26,183,630 | $29.69 | 219 |
| 2025 Q1 | 31,537,442 | $726,162,629 | -$99,336,020 | $23.02 | 223 |
| 2024 Q4 | 33,678,940 | $1,197,766,079 | -$4,088,992 | $35.56 | 249 |
| 2024 Q3 | 33,582,443 | $1,358,923,161 | -$66,138,501 | $40.46 | 259 |
| 2024 Q2 | 33,355,451 | $1,732,781,239 | +$105,764,060 | $51.95 | 268 |
| 2024 Q1 | 31,581,841 | $1,266,739,175 | +$68,893,895 | $40.16 | 237 |
| 2023 Q4 | 29,639,068 | $1,015,173,799 | +$30,619,095 | $34.25 | 188 |
| 2023 Q3 | 28,596,322 | $636,384,719 | -$147,508,629 | $22.25 | 176 |
| 2023 Q2 | 32,342,073 | $1,120,745,718 | +$68,396,837 | $34.65 | 227 |
| 2023 Q1 | 30,082,692 | $1,130,420,537 | +$89,106,085 | $37.58 | 193 |
| 2022 Q4 | 28,243,664 | $776,146,479 | +$69,230,015 | $27.48 | 165 |
| 2022 Q3 | 25,539,046 | $742,508,393 | +$22,658,289 | $29.08 | 144 |
| 2022 Q2 | 24,723,989 | $509,067,223 | +$8,119,520 | $20.59 | 111 |
| 2022 Q1 | 24,308,638 | $498,198,882 | +$240,138,120 | $20.52 | 112 |
| 2021 Q4 | 11,835,188 | $591,509,182 | -$16,294,717 | $49.98 | 119 |
| 2021 Q3 | 12,254,400 | $528,035,189 | -$3,140,727 | $43.08 | 104 |
| 2021 Q2 | 12,348,766 | $449,063,464 | -$4,022,377 | $36.37 | 98 |
| 2021 Q1 | 12,442,697 | $433,369,893 | +$38,502,801 | $34.83 | 99 |
| 2020 Q4 | 11,505,666 | $301,681,810 | +$68,538,350 | $26.22 | 96 |
| 2020 Q3 | 8,841,925 | $207,808,471 | +$4,021,511 | $23.50 | 86 |
| 2020 Q2 | 8,668,313 | $202,680,315 | +$7,991,818 | $23.39 | 96 |