NSSC NAPCO Security Technologies, Inc.
NAPCO Security Technologies, Inc. (NSSC) Institutional Ownership
What the institutions did with NSSC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 5.6M | 15.0% |
| Copeland Capital Management, LLC | 2.0M | 5.4% |
| Jupiter Topco LLC | 1.7M | 4.5% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | 4.1% |
| STATE STREET CORP | 1.5M | 4.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | 4.0% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1.5M | 4.0% |
| FIRST TRUST ADVISORS LP | 1.3M | 3.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2M | 3.2% |
| WELLINGTON MANAGEMENT GROUP LLP | 1.1M | 2.9% |
| MORGAN STANLEY | 959.8K | 2.6% |
| DIMENSIONAL FUND ADVISORS LP | 725.6K | 1.9% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 697.9K | 1.9% |
| Doma Perpetual Capital Management LLC | 627.9K | 1.7% |
| NORTHERN TRUST CORP | 610.6K | 1.6% |
| Fundsmith LLP | 607.0K | 1.6% |
| BESSEMER GROUP INC | 430.5K | 1.1% |
| DEPRINCE RACE & ZOLLO INC | 408.6K | 1.1% |
| ROYAL BANK OF CANADA | 406.4K | 1.1% |
| RENAISSANCE TECHNOLOGIES LLC | 406.2K | 1.1% |
| Point72 Asset Management, L.P. | 379.7K | 1.0% |
| ENVESTNET ASSET MANAGEMENT INC | 378.8K | 1.0% |
| GOLDMAN SACHS GROUP INC | 369.3K | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 354.5K | 0.9% |
| Bank of New York Mellon Corp | 311.0K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 48.5K | 1.5M | +1.4M |
| FIRST TRUST ADVISORS LP | Increased | 685.2K | 1.3M | +618.9K |
| MORGAN STANLEY | Increased | 464.9K | 959.8K | +494.9K |
| PRUDENTIAL FINANCIAL INC | Reduced | 750.0K | 274.8K | -475.2K |
| DEPRINCE RACE & ZOLLO INC | Increased | 118.8K | 408.6K | +289.9K |
| Fundsmith LLP | Increased | 383.6K | 607.0K | +223.4K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 412.8K | 201.7K | -211.1K |
| ALGERT GLOBAL LLC | Reduced | 241.2K | 39.0K | -202.1K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Increased | 32.2K | 224.3K | +192.1K |
| Man Group plc | Reduced | 209.6K | 22.5K | -187.1K |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 929.6K | 1.1M | +172.7K |
| Qube Research & Technologies Ltd | Sold Out | 166.6K | 0 | -166.6K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Increased | 121.5K | 274.1K | +152.6K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 846.0K | 697.9K | -148.1K |
| BESSEMER GROUP INC | Increased | 292.9K | 430.5K | +137.6K |
| HRT FINANCIAL LP | Increased | 65.8K | 202.2K | +136.3K |
| UBS Group AG | Increased | 50.8K | 167.3K | +116.5K |
| CenterBook Partners LP | Reduced | 132.5K | 17.5K | -114.9K |
| Uniplan Investment Counsel, Inc. | Sold Out | 113.4K | 0 | -113.4K |
| NEW YORK STATE COMMON RETIREMENT FUND | Increased | 72.9K | 186.3K | +113.4K |
| JPMORGAN CHASE & CO | Increased | 102.6K | 214.9K | +112.3K |
| Point72 Asset Management, L.P. | Reduced | 482.3K | 379.7K | -102.6K |
| CANADA PENSION PLAN INVESTMENT BOARD | Reduced | 162.4K | 71.3K | -91.1K |
| Trexquant Investment LP | Increased | 171.1K | 261.3K | +90.2K |
| Walleye Capital LLC | Sold Out | 89.4K | 0 | -89.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.