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.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 5.6M | 15.6% |
| Copeland Capital Management, LLC | 2.0M | 5.6% |
| Jupiter Topco LLC | 1.7M | 4.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | 4.2% |
| STATE STREET CORP | 1.5M | 4.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | 4.1% |
| FIRST TRUST ADVISORS LP | 1.3M | 3.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2M | 3.3% |
| WELLINGTON MANAGEMENT GROUP LLP | 1.1M | 3.1% |
| MORGAN STANLEY | 959.8K | 2.7% |
| DIMENSIONAL FUND ADVISORS LP | 725.6K | 2.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 697.9K | 1.9% |
| Doma Perpetual Capital Management LLC | 627.9K | 1.7% |
| NORTHERN TRUST CORP | 610.6K | 1.7% |
| Fundsmith LLP | 607.0K | 1.7% |
| BESSEMER GROUP INC | 430.5K | 1.2% |
| 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 | 1.1% |
| ENVESTNET ASSET MANAGEMENT INC | 378.8K | 1.0% |
| GOLDMAN SACHS GROUP INC | 369.3K | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 354.5K | 1.0% |
| Bank of New York Mellon Corp | 311.0K | 0.9% |
| AQR CAPITAL MANAGEMENT LLC | 295.9K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| 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 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.1M | 1.2M | +88.9K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 113.0K | 25.7K | -87.3K |
| TWO SIGMA INVESTMENTS, LP | Increased | 86.2K | 172.7K | +86.5K |
| CRAWFORD INVESTMENT COUNSEL INC | Increased | 139.3K | 223.8K | +84.5K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | 99.2K | 18.0K | -81.2K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 272.0K | 196.2K | -75.8K |
| STATE STREET CORP | Increased | 1.4M | 1.5M | +73.3K |
| ROYAL BANK OF CANADA | Reduced | 476.6K | 406.4K | -70.2K |
| CITADEL ADVISORS LLC | Sold Out | 69.7K | 0 | -69.7K |
| Invesco Ltd. | Increased | 124.4K | 190.9K | +66.5K |
| SG Capital Management LLC | Increased | 107.2K | 170.8K | +63.6K |
| BANK OF AMERICA CORP /DE/ | Reduced | 221.8K | 158.5K | -63.3K |
| Rockefeller Capital Management L.P. | Increased | 118.8K | 178.2K | +59.4K |
| Nuveen, LLC | Increased | 199.1K | 255.6K | +56.4K |
| Vest Financial, LLC | Increased | 45.4K | 96.1K | +50.7K |
| BlackRock, Inc. | Reduced | 5.7M | 5.6M | -49.1K |
| Thrivent Financial for Lutherans | Reduced | 74.8K | 29.0K | -45.8K |
| Russell Investments Group, Ltd. | Increased | 213.8K | 256.4K | +42.7K |
| Quantinno Capital Management LP | Increased | 19.5K | 59.0K | +39.5K |
| FIRST NATIONAL BANK OF OMAHA | Reduced | 80.3K | 40.8K | -39.5K |
| SG Americas Securities, LLC | Increased | 24.2K | 62.7K | +38.5K |
| Corient Private Wealth LP | Increased | 11.4K | 48.6K | +37.2K |
| GOLDMAN SACHS GROUP INC | Reduced | 403.3K | 369.3K | -34.0K |
| CAPITAL FUND MANAGEMENT S.A. | New | 0 | 33.5K | +33.5K |
| CONGRESS ASSET MANAGEMENT CO | Increased | 252.4K | 285.5K | +33.1K |
| Y-Intercept (Hong Kong) Ltd | Reduced | 59.3K | 26.4K | -32.9K |
| First National Advisers, LLC | Reduced | 72.2K | 39.7K | -32.5K |
| Voleon Capital Management LP | Reduced | 52.9K | 21.6K | -31.3K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 436.8K | 406.2K | -30.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.5M | 1.5M | +30.2K |
| Balyasny Asset Management L.P. | Sold Out | 28.0K | 0 | -28.0K |
| Integrated Quantitative Investments LLC | Sold Out | 27.4K | 0 | -27.4K |
| NORTHERN TRUST CORP | Increased | 584.3K | 610.6K | +26.3K |
| TWINBEECH CAPITAL LP | Sold Out | 26.1K | 0 | -26.1K |
| Public Sector Pension Investment Board | Increased | 127.6K | 153.2K | +25.7K |
| Bridge City Capital, LLC | Increased | 58.6K | 84.1K | +25.5K |
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.