NAPCO SECURITY TECHNOLOGIES, INC NSSC
CIK 0000069633 · CUSIP 630402105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $134.46M 3,224,505 shares | 0.00% | +340.62K(+11.80%)Added | SEC filing ↗ Feb 12, 2026 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $120.18M 2,882,063 shares | 0.00% | +31.64K(+1.10%)Added | SEC filing ↗ Jan 29, 2026 | ▾ |
| 03 | Fundsmith LLP CIK 1569205 · View history | $74.22M 1,779,857 shares | 0.43% | 0(0.00%)Unchanged | SEC filing ↗ Feb 17, 2026 | ▾ |
| 04 | JANUS HENDERSON GROUP PLC CIK 1274173 · View history | $65.46M 1,569,363 shares | 0.03% | +45.09K(+3.00%)Added | SEC filing ↗ Feb 17, 2026 | ▾ |
| 05 | Copeland Capital Management, LLC CIK 1541743 · View history | $59.25M 1,420,792 shares | 1.32% | -76.72K(-5.10%)Reduced | SEC filing ↗ Jan 29, 2026 | ▾ |
| 06 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $42.91M 1,028,863 shares | 0.00% | +4.32K(+0.40%)Added | SEC filing ↗ Feb 9, 2026 | ▾ |
| 07 | STATE STREET CORP CIK 93751 · View history | $37.48M 896,315 shares | 0.00% | +112.50K(+14.40%)Added | SEC filing ↗ Feb 13, 2026 | ▾ |
| 08 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $36.67M 879,298 shares | 0.01% | -129.56K(-12.80%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 09 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history | $36.03M 864,022 shares | 0.02% | +2.88K(+0.30%)Added | SEC filing ↗ Feb 13, 2026 | ▾ |
| 10 | Divisadero Street Capital Management, LP CIK 1901865 · View history | $33.77M 809,729 shares | 1.92% | +698.16K(+625.80%)Added | SEC filing ↗ Feb 17, 2026 | ▾ |
| 11 | FIRST TRUST ADVISORS LP CIK 1125816 · View history | $29.79M 714,382 shares | 0.02% | +148.49K(+26.20%)Added | SEC filing ↗ Feb 13, 2026 | ▾ |
| 12 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $27.99M 671,243 shares | 0.01% | -6.84K(-1.00%)Reduced | SEC filing ↗ Feb 12, 2026 | ▾ |
| 13 | Doma Perpetual Capital Management LLC CIK 1962221 · View history | $26.18M 627,931 shares | 7.36% | -537.42K(-46.10%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 14 | NORTHERN TRUST CORP CIK 73124 · View history | $24.93M 597,918 shares | 0.00% | -42.40K(-6.60%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 15 | ROYAL BANK OF CANADA CIK 1000275 · View history | $24.21M 580,557 shares | 0.00% | -65.71K(-10.20%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 16 | MORGAN STANLEY CIK 895421 · Amended · View history | $17.66M 423,516 shares | 0.00% | +42.92K(+11.30%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 17 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $17.31M 414,990 shares | 0.07% | -23.34K(-5.30%)Reduced | SEC filing ↗ Feb 13, 2026 | ▾ |
| 18 | Qube Research & Technologies Ltd CIK 1729829 · View history | $15.69M 376,227 shares | 0.02% | -44.58K(-10.60%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 19 | ENVESTNET ASSET MANAGEMENT INC CIK 1407543 · View history | $15.25M 365,742 shares | 0.00% | -56.35K(-13.40%)Reduced | SEC filing ↗ Feb 10, 2026 | ▾ |
| 20 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $13.89M 333,200 shares | 0.02% | +18.10K(+5.70%)Added | SEC filing ↗ Feb 12, 2026 | ▾ |
Showing 20 / 254 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 254 reporting institutions.
This page includes 20 of 254 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 254 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"630402105","quarter":"2025Q4","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.