NAPCO SEC TECHNOLOGIES INC (NSSC)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
238
Reporting holders
$1.4B
Reported value
99.6%
Of shares outstanding
0.0%
Held as options
-12
Holder change
Institutions report 35,576,405 shares against 35,727,337 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted; share count carried from an earlier filing (concept 2026-05-04).
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $213.9M | 5,632,646 | 0.00% | 8q | -0.9%-$1.9M |
| Copeland Capital Management, LLC | $76.6M | 2,016,873 | 1.57% | 12q | HELD |
| Jupiter Topco LLC | $63.9M | 1,682,208 | 0.03% | new | FIRST |
| VANGUARD CAPITAL MANAGEMENT LLC | $58.0M | 1,526,818 | 0.00% | 2q | +1.4%+$821.9K |
| STATE STREET CORP | $57.4M | 1,504,759 | 0.00% | 31q | +5.1%+$2.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $56.8M | 1,494,431 | 0.00% | 2q | +2.1%+$1.1M |
| FIRST TRUST ADVISORS LP | $49.5M | 1,304,074 | 0.03% | 4q | +90.3%+$23.5M |
| GEODE CAPITAL MANAGEMENT, LLC | $45.5M | 1,196,951 | 0.00% | 31q | +8.0%+$3.4M |
| WELLINGTON MANAGEMENT GROUP LLP | $41.9M | 1,102,280 | 0.01% | 7q | +18.6%+$6.6M |
| MORGAN STANLEY | $36.5M | 959,777 | 0.00% | 35q | +106.5%+$18.8M |
| DIMENSIONAL FUND ADVISORS LP | $27.6M | 725,550 | 0.00% | 31q | +3.2%+$862.0K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $26.5M | 697,937 | 0.01% | 5q | -17.5%-$5.6M |
| Doma Perpetual Capital Management LLC | $23.8M | 627,931 | 5.54% | 11q | HELD |
| NORTHERN TRUST CORP | $23.2M | 610,616 | 0.00% | 31q | +4.5%+$998.5K |
| Fundsmith LLP | $23.1M | 606,974 | 0.17% | 5q | +58.2%+$8.5M |
| DEPRINCE RACE & ZOLLO INC | $15.5M | 408,632 | 0.26% | 6q | +244.1%+$11.0M |
| ROYAL BANK OF CANADA | $15.4M | 406,408 | 0.00% | 27q | -14.7%-$2.7M |
| RENAISSANCE TECHNOLOGIES LLC | $15.4M | 406,200 | 0.02% | 10q | -7.0%-$1.2M |
| Point72 Asset Management, L.P. | $14.4M | 379,686 | 0.02% | 8q | -21.3%-$3.9M |
| ENVESTNET ASSET MANAGEMENT INC | $14.4M | 378,803 | 0.00% | 24q | +0.8%+$120.2K |
| GOLDMAN SACHS GROUP INC | $14.0M | 369,290 | 0.00% | 22q | -8.4%-$1.3M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $13.5M | 354,531 | 0.00% | 31q | +4.7%+$606.6K |
| Sixth Street Partners Management Company, L.P. | $13.5M | 354,531 | 0.00% | new | NEW |
| Bank of New York Mellon Corp | $11.8M | 311,009 | 0.00% | 31q | +2.7%+$305.4K |
| Public Sector Pension Investment Board | $11.6M | 306,478 | 0.02% | 3q | +140.3%+$6.8M |
| AQR CAPITAL MANAGEMENT LLC | $11.2M | 295,923 | 0.00% | 19q | +3.8%+$413.8K |
| CONGRESS ASSET MANAGEMENT CO | $10.8M | 285,462 | 0.07% | 14q | +13.1%+$1.3M |
| CAPTRUST FINANCIAL ADVISORS | $10.6M | 278,678 | 0.02% | 3q | +1.6%+$161.8K |
| FEDERATED HERMES, INC. | $10.5M | 277,694 | 0.02% | 6q | +3.0%+$305.8K |
| PRUDENTIAL FINANCIAL INC | $10.4M | 274,820 | 0.01% | 2q | -63.4%-$18.0M |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $10.4M | 274,050 | 0.04% | 4q | +125.6%+$5.8M |
| Granite Investment Partners, LLC | $10.1M | 266,069 | 0.52% | 14q | -0.5%-$55.3K |
| Visionary Wealth Advisors | $10.0M | 262,368 | 0.39% | 27q | HELD |
| Trexquant Investment LP | $9.9M | 261,334 | 0.06% | 15q | +52.7%+$3.4M |
| Russell Investments Group, Ltd. | $9.7M | 256,442 | 0.01% | 28q | +20.0%+$1.6M |
| Nuveen, LLC | $9.7M | 255,569 | 0.00% | 6q | +28.3%+$2.1M |
| VANGUARD FIDUCIARY TRUST CO | $9.7M | 254,169 | 0.00% | 2q | +3.1%+$285.9K |
| WASATCH ADVISORS LP | $9.2M | 242,585 | 0.06% | 5q | HELD |
| PRINCIPAL FINANCIAL GROUP INC | $8.7M | 230,017 | 0.00% | 17q | +2.1%+$178.6K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $8.5M | 224,298 | 0.01% | 3q | +596.3%+$7.3M |
| CRAWFORD INVESTMENT COUNSEL INC | $8.5M | 223,794 | 0.14% | 4q | +60.7%+$3.2M |
| JPMORGAN CHASE & CO | $8.1M | 214,871 | 0.00% | 31q | +109.5%+$4.2M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $7.7M | 201,670 | 0.03% | 9q | -51.1%-$8.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7.5M | 196,242 | 0.00% | 14q | -27.9%-$2.9M |
| Invesco Ltd. | $7.2M | 190,854 | 0.00% | 20q | +53.4%+$2.5M |
| NEW YORK STATE COMMON RETIREMENT FUND | $7.1M | 186,274 | 0.01% | 31q | +155.5%+$4.3M |
| GAMCO INVESTORS, INC. ET AL | $6.8M | 178,900 | 0.06% | 19q | HELD |
| Rockefeller Capital Management L.P. | $6.8M | 178,187 | 0.01% | 10q | +50.0%+$2.3M |
| TWO SIGMA INVESTMENTS, LP | $6.6M | 172,667 | 0.00% | 3q | +100.3%+$3.3M |
| SG Capital Management LLC | $6.5M | 170,793 | 0.54% | 3q | +59.4%+$2.4M |
| KORNITZER CAPITAL MANAGEMENT INC /KS | $6.4M | 168,717 | 0.13% | 9q | HELD |
| UBS Group AG | $6.4M | 167,284 | 0.00% | 31q | +229.5%+$4.4M |
| BANK OF AMERICA CORP /DE/ | $6.0M | 158,484 | 0.00% | 31q | -28.5%-$2.4M |
| RICE HALL JAMES & ASSOCIATES, LLC | $5.8M | 153,577 | 0.28% | 13q | +4.6%+$258.4K |
| SEI INVESTMENTS CO | $5.1M | 134,961 | 0.00% | 10q | +2.7%+$134.6K |
| ISTHMUS PARTNERS, LLC | $4.5M | 117,950 | 0.43% | 29q | +2.0%+$86.6K |
| Redmond Asset Management, LLC | $4.5M | 117,784 | 1.12% | 26q | -0.8%-$35.3K |
| HighTower Advisors, LLC | $4.3M | 112,128 | 0.00% | 31q | -5.1%-$227.9K |
| ALTA CAPITAL MANAGEMENT LLC/ | $4.1M | 109,200 | 0.31% | 21q | -9.4%-$430.3K |
| AMERICAN CENTURY COMPANIES INC | $3.7M | 97,700 | 0.00% | 11q | +8.0%+$274.6K |
| Corient Private Wealth LP | $3.7M | 97,478 | 0.00% | 4q | +755.8%+$3.3M |
| Vest Financial, LLC | $3.6M | 96,069 | 0.04% | 4q | +111.6%+$1.9M |
| PDT Partners, LLC | $3.5M | 93,227 | 0.19% | 8q | -20.5%-$913.5K |
| STIFEL FINANCIAL CORP | $3.5M | 93,156 | 0.00% | 11q | -0.6%-$20.4K |
| Legal & General Group Plc | $3.2M | 84,279 | 0.00% | 31q | +1.3%+$39.6K |
| Bridge City Capital, LLC | $3.2M | 84,131 | 0.73% | 8q | +43.5%+$969.3K |
| RHUMBLINE ADVISERS | $3.2M | 83,395 | 0.00% | 31q | -10.9%-$386.3K |
| Linden Thomas Advisory Services, LLC | $3.1M | 80,539 | 0.25% | 14q | +11.1%+$306.4K |
| CANADA PENSION PLAN INVESTMENT BOARD | $2.7M | 71,300 | 0.00% | 6q | -56.1%-$3.5M |
| Swiss National Bank | $2.7M | 70,000 | 0.00% | 27q | -0.6%-$15.2K |
| AMERIPRISE FINANCIAL INC | $2.5M | 66,266 | 0.00% | 2q | -48.8%-$2.4M |
| Allianz Asset Management GmbH | $2.4M | 60,650 | 0.00% | 30q | HELD |
| Vident Advisory, LLC | $2.3M | 60,130 | 0.02% | 2q | +23.0%+$426.9K |
| Quantinno Capital Management LP | $2.2M | 58,972 | 0.00% | 6q | +203.0%+$1.5M |
| VICTORY CAPITAL MANAGEMENT INC | $2.2M | 58,024 | 0.00% | 3q | +19.6%+$361.0K |
| Engineers Gate Manager LP | $2.1M | 55,530 | 0.03% | 6q | +34.8%+$544.9K |
| Divisadero Street Capital Management, LP | $1.9M | 50,799 | 0.04% | 14q | HELD |
| RAFFLES ASSOCIATES LP | $1.9M | 48,848 | 0.81% | 31q | +100.0%+$927.6K |
| SEIZERT CAPITAL PARTNERS, LLC | $1.8M | 48,631 | 0.08% | 3q | +8.5%+$144.2K |
| RAYMOND JAMES FINANCIAL INC | $1.8M | 48,084 | 0.00% | 2q | +11.8%+$193.0K |
| WELLS FARGO & COMPANY/MN | $1.6M | 41,503 | 0.00% | 31q | -3.3%-$53.7K |
| FIRST NATIONAL BANK OF OMAHA | $1.6M | 40,823 | 0.04% | 12q | -49.2%-$1.5M |
| First National Advisers, LLC | $1.5M | 39,698 | 0.21% | 12q | -45.1%-$1.2M |
| Gotham Asset Management, LLC | $1.5M | 39,438 | 0.00% | 13q | -14.4%-$252.3K |
| Hennion & Walsh Asset Management, Inc. | $1.5M | 39,026 | 0.04% | 12q | +2.8%+$40.6K |
| ALGERT GLOBAL LLC | $1.5M | 39,018 | 0.02% | 16q | -91.9%-$16.8M |
| ALLIANCEBERNSTEIN L.P. | $1.4M | 36,250 | 0.00% | 28q | -3.7%-$54.8K |
| DEUTSCHE BANK AG\ | $1.4M | 37,232 | 0.00% | 34q | +18.3%+$218.7K |
| WINTON GROUP Ltd | $1.3M | 34,239 | 0.04% | 2q | +4.6%+$56.6K |
| CAPITAL FUND MANAGEMENT S.A. | $1.3M | 33,487 | 0.01% | new | NEW |
| Louisiana State Employees Retirement System | $1.2M | 31,500 | 0.01% | 2q | +99.4%+$607.4K |
| BARCLAYS PLC | $1.2M | 31,044 | 0.00% | 30q | +119.5%+$641.8K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $1.2M | 30,449 | 0.00% | 26q | +11.4%+$118.2K |
| Creative Planning | $1.2M | 30,383 | 0.00% | 8q | -17.9%-$251.7K |
| Magnetar Financial LLC | $1.1M | 29,415 | 0.01% | 3q | +29.6%+$255.3K |
| LPL Financial LLC | $1.1M | 27,686 | 0.00% | 10q | -3.5%-$38.5K |
| Financiere des Professionnels - Fonds d'investissement inc. | $1.0M | 27,528 | 0.06% | 2q | +99.8%+$522.3K |
| Y-Intercept (Hong Kong) Ltd | $1.0M | 26,442 | 0.02% | 7q | -55.4%-$1.2M |
| BNP PARIBAS FINANCIAL MARKETS | $974.5K | 25,659 | 0.00% | 31q | -77.3%-$3.3M |
| VANGUARD ASSET MANAGEMENT, Ltd | $949.5K | 24,999 | 0.00% | 2q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-04 | 13G | Copeland Capital Management, LLC | 5.7% |
| 2026-07-31 | 13G | Vanguard Capital Management | 5.0% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 238 | $1.4B | 35,576,405 | 28 | 91 | 82 | 0.0% |
| Q1 2026 | 250 | $1.3B | 34,201,439 | 42 | 87 | 87 | 0.0% |
| Q4 2025 | 235 | $1.3B | 31,256,084 | 32 | 67 | 85 | 0.3% |
| Q3 2025 | 221 | $1.4B | 31,798,354 | 47 | 52 | 85 | 0.5% |
| Q2 2025 | 203 | $976.8M | 33,049,090 | 28 | 84 | 63 | 0.1% |
| Q1 2025 | 209 | $707.1M | 30,857,360 | 34 | 80 | 65 | 0.1% |
| Q4 2024 | 228 | $1.2B | 32,851,637 | 29 | 94 | 69 | 0.2% |
| Q3 2024 | 235 | $1.4B | 32,834,911 | 42 | 96 | 67 | 3.2% |
| Q2 2024 | 243 | $1.5B | 29,070,694 | 54 | 86 | 68 | 0.2% |
| Q1 2024 | 215 | $1.1B | 27,971,532 | 64 | 63 | 52 | 0.2% |
| Q4 2023 | 172 | $877.4M | 25,664,164 | 30 | 64 | 44 | 0.3% |
| Q3 2023 | 160 | $546.2M | 24,128,408 | 25 | 68 | 47 | 1.7% |
| Q2 2023 | 201 | $932.6M | 26,905,426 | 54 | 67 | 44 | 0.4% |
| Q1 2023 | 169 | $984.3M | 26,147,545 | 42 | 55 | 48 | 0.7% |
| Q4 2022 | 133 | $573.8M | 20,920,496 | 20 | 52 | 30 | 0.2% |
| Q3 2022 | 148 | $779.8M | 26,803,431 | 41 | 41 | 44 | 0.1% |
| Q2 2022 | 112 | $514.7M | 24,762,446 | 12 | 39 | 35 | 0.5% |
| Q1 2022 | 112 | $501.1M | 24,331,342 | 14 | 91 | 7 | 0.0% |
| Q4 2021 | 123 | $596.3M | 11,946,119 | 20 | 36 | 33 | 0.0% |
| Q3 2021 | 105 | $528.2M | 12,241,814 | 12 | 33 | 29 | 0.1% |
| Q2 2021 | 102 | $450.3M | 12,338,199 | 8 | 22 | 41 | 0.4% |
| Q1 2021 | 103 | $436.1M | 12,442,754 | 13 | 37 | 29 | 0.6% |
| Q4 2020 | 99 | $306.4M | 11,505,769 | 14 | 35 | 24 | 1.5% |
| Q3 2020 | 89 | $209.9M | 8,841,282 | 7 | 24 | 33 | 1.0% |
| Q2 2020 | 97 | $216.5M | 9,118,313 | 16 | 33 | 29 | 1.5% |
| Q1 2020 | 88 | $133.9M | 8,729,873 | 11 | 27 | 29 | 1.1% |
| Q4 2019 | 109 | $271.9M | 9,209,459 | 13 | 31 | 37 | 0.5% |
| Q3 2019 | 114 | $240.7M | 9,293,316 | 22 | 32 | 37 | 1.4% |
| Q2 2019 | 115 | $246.3M | 8,088,291 | 32 | 37 | 26 | 2.5% |
| Q1 2019 | 99 | $152.9M | 7,365,637 | 31 | 26 | 26 | 0.1% |
| Q4 2018 | 70 | $108.0M | 6,859,869 | 1 | 0 | 3 | 0.0% |