Who owns NAPCO SECURITY TECHNOLOGIES, INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of NSSC from SEC Form 13F filings across 258 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 258 institutions disclosed 36.1M shares of NAPCO SECURITY TECHNOLOGIES, INC worth $1.37B — about 101.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
258
13F holders
$1.37B
value, 2026 filers
101.1%
of shares outstanding (36.1M sh)
31
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of NSSC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.6M | $213.9M | 0.0% | 15.8% | -0.9% |
| 2 | Copeland Capital Management, LLC | 2.0M | $76.6M | 1.6% | 5.7% | +0.4% |
| 3 | Jupiter Topco LLCNEW | 1.7M | $63.9M | 0.0% | 4.7% | new |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | $58.0M | 0.0% | 4.3% | +1.4% |
| 5 | STATE STREET CORP | 1.5M | $57.4M | 0.0% | 4.2% | +5.1% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | $56.8M | 0.0% | 4.2% | +2.1% |
| 7 | FIRST TRUST ADVISORS LP | 1.3M | $49.5M | 0.0% | 3.7% | +90.3% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.2M | $45.5M | 0.0% | 3.4% | +8.0% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | 1.1M | $41.9M | 0.0% | 3.1% | +18.6% |
| 10 | MORGAN STANLEY | 959,777 | $36.5M | 0.0% | 2.7% | +106.5% |
| 11 | DIMENSIONAL FUND ADVISORS LP | 725,550 | $27.6M | 0.0% | 2% | +3.2% |
| 12 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 697,937 | $26.5M | 0.0% | 2% | -17.5% |
| 13 | Doma Perpetual Capital Management LLC | 627,931 | $23.8M | 5.5% | 1.8% | 0.0% |
| 14 | NORTHERN TRUST CORP | 610,616 | $23.2M | 0.0% | 1.7% | +4.5% |
| 15 | Fundsmith LLP | 606,974 | $23.1M | 0.2% | 1.7% | +58.2% |
| 16 | BESSEMER GROUP INC | 430,452 | $16.4M | 0.0% | 1.2% | +47.0% |
| 17 | DEPRINCE RACE & ZOLLO INC | 408,632 | $15.5M | 0.3% | 1.1% | +244.1% |
| 18 | ROYAL BANK OF CANADA | 406,408 | $15.4M | 0.0% | 1.1% | -14.7% |
| 19 | RENAISSANCE TECHNOLOGIES LLC | 406,200 | $15.4M | 0.0% | 1.1% | -7.0% |
| 20 | Point72 Asset Management, L.P. | 379,686 | $14.4M | 0.0% | 1.1% | -21.3% |
| 21 | ENVESTNET ASSET MANAGEMENT INC | 378,803 | $14.4M | 0.0% | 1.1% | +0.8% |
| 22 | GOLDMAN SACHS GROUP INC | 369,290 | $14.0M | 0.0% | 1% | -8.4% |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 354,531 | $13.5M | 0.0% | 1% | +4.7% |
| 24 | Bank of New York Mellon Corp | 311,009 | $11.8M | 0.0% | 0.9% | +2.7% |
| 25 | AQR CAPITAL MANAGEMENT LLC | 295,923 | $11.2M | 0.0% | 0.8% | +3.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.