Institutional Ownership
Napco Sec Technologies Inc
CUSIP 630402105COMNSSCQ1 2026
13D / 13G Filings
22
Schedule 13D/13G on record
Beneficial Filers
9
Distinct reporting persons
Largest Stake
20.0%
Max % of class reported
Institutional Holders
264
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
22 filings · latest Oct 17, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Oct 17, 2025 | Blackrock, Inc. | 13G/A | 7.9% | 2.82M | SEC |
| 2 | May 12, 2025 | Fmr LLC | 13G/A | 3.0% | 1.09M | SEC |
| 3 | Jan 30, 2025 | The Vanguard Group | 13G/A | 7.8% | 2.85M | SEC |
| 4 | Nov 12, 2024 | Blackrock, Inc. | 13G/A | 8.9% | 3.28M | SEC |
| 5 | Nov 12, 2024 | Fmr LLC | 13G | 5.7% | — | SEC |
| 6 | Oct 21, 2024 | Blackrock, Inc. | 13G/A | 8.9% | 3.28M | SEC |
| 7 | Mar 12, 2024 | Soloway Richard | 13D/A | 4.8% | 1.77M | SEC |
| 8 | Feb 14, 2024 | T. Rowe Price Investment Management, Inc. | 13G | 5.7% | 2.11M | SEC |
| 9 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 6.7% | 2.45M | SEC |
| 10 | Feb 9, 2024 | Fmr LLC | 13G/A | 4.2% | — | SEC |
12 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Napco Sec Technologies Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 5.68M | $223.80M |
| 2 | Copeland Capital Management, LLC | 2.01M | $79.14M |
| 3 | State Street Corp | 1.43M | $56.52M |
| 4 | Janus Henderson Group PLC | 1.42M | $56.14M |
| 5 | Geode Capital Management, LLC | 1.11M | $43.65M |
| 6 | Wellington Management Group LLP | 929.6K | $36.62M |
| 7 | Arrowstreet Capital, Limited Partnership | 846.0K | $33.33M |
| 8 | Prudential Financial Inc | 750.0K | $29.54M |
| 9 | Dimensional Fund Advisors LP | 702.9K | $27.68M |
| 10 | First Trust Advisors LP | 685.2K | $26.99M |