# NAPCO SEC TECHNOLOGIES INC COM

NAPCO SEC TECHNOLOGIES INC COM is a security (CUSIP 630402105) tracked across SEC portfolio filings. 270 institutional managers reported $1.3B on Form 13F as of 2026-06-30; 21 registered fund positions totaling $58.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: NAPCO SEC TECHNOLOGIES INC
- Class: COM
- CUSIP: 630402105
- Asset category: EC
- 13F holders: 270
- 13F value: $1.3B
- 13F period: 2026-06-30
- N-PORT fund positions: 21
- N-PORT value: $58.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 270 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $223.8M | 5,681,770 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $120.2M | 2,882,063 |
| Copeland Capital Management, LLC | Conshohocken, PA | $76.6M | 2,016,873 |
| STATE STREET CORP | BOSTON, MA | $56.5M | 1,431,503 |
| JANUS HENDERSON GROUP PLC | LONDON, X0 | $56.1M | 1,424,963 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $43.7M | 1,108,092 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $36.6M | 929,599 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $33.3M | 846,040 |
| PRUDENTIAL FINANCIAL INC | NEWARK, NJ | $29.5M | 750,030 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $27.7M | 702,852 |
| FIRST TRUST ADVISORS LP | Wheaton, IL | $27.0M | 685,189 |
| [Doma Perpetual Capital Management LLC](https://search.stillhousedata.com/firm/321046) | Miami, FL | $24.7M | 627,931 |
| NORTHERN TRUST CORP | CHICAGO, IL | $23.0M | 584,327 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $19.0M | 482,272 |
| Royal Bank of Canada | TORONTO, A6 | $18.8M | 476,558 |

## Top fund holders (N-PORT)

_Showing 15 of 21 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Janus Henderson Venture Fund](https://search.stillhousedata.com/fund/S000010488) | JANUS INVESTMENT FUND | $16.7M | 54.52% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $15.7M | 1.92% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $6.7M | 3.80% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $5.8M | 7.78% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $2.3M | 4.69% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $2.0M | 1.98% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $1.7M | 12.42% |
| [Copeland SMID Cap Dividend Growth Fund](https://search.stillhousedata.com/fund/S000056507) | Copeland Trust | $1.7M | 120.55% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $1.1M | 10.67% |
| [BNY Mellon Smallcap Stock Index Fund](https://search.stillhousedata.com/fund/S000000132) | BNY MELLON INDEX FUNDS, INC. | $832K | 9.83% |
| [Embark Small Cap Equity Fund](https://search.stillhousedata.com/fund/S000083503) | Harbor Funds II | $828K | 14.48% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $769K | 0.13% |
| [Russell Investments U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000089990) | Russell Investments Exchange Traded Funds | $718K | 145.33% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $656K | 0.22% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $582K | 0.53% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/630402105.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.