Security record · archived quarter
NSSC
Napco Security Technologies, Inc. · Industrials · Security & Protection Services
101Tracked holders
+1Δ holders
21.74MShares held
$906.70MReported value
+2New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +1.0% ·
share flow -0.3% ·
net new positions +2.0%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 89 | -6 | 23.55M | $894.69M | +4 | −9 |
| Q1 2026 | 97 | -3 | 24.10M | $949.24M | +6 | −10 |
| Q4 2025 | 101 | +1 | 21.74M | $906.70M | +2 | — |
| Q3 2025 | 21 | 0 | 12.44M | $534.26M | +1 | −2 |
| Q2 2025 | 19 | +3 | 11.23M | $333.42M | +3 | — |
| Q1 2025 | 13 | 0 | 4.45M | $102.54M | +1 | −1 |
| Q4 2024 | 13 | +1 | 4.35M | $154.82M | +1 | — |
| Q3 2024 | 11 | -1 | 2.29M | $92.84M | +2 | −3 |
| Q2 2024 | 12 | — | 2.35M | $121.89M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 3.22M | +11.8% | $134.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 2.88M | +1.1% | $120.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 2.88M | +1.1% | $120.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 2.88M | +1.1% | $120.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 2.88M | +1.1% | $120.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 2.88M | +1.1% | $120.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 22 | Janus Henderson Group Plc | 1.57M | — | $65.46M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Janus Henderson Group Plc | 1.57M | — | $65.46M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Janus Henderson Group Plc | 1.57M | — | $65.46M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Geode Capital Management ✦ (passive) | 1.03M | +0.4% | $42.91M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.03M | +0.4% | $42.91M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 896.32K | +14.3% | $37.48M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 28 | Wellington Management ✦ | 879.30K | -12.8% | $36.67M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 29 | Wellington Management ✦ | 879.30K | -12.8% | $36.67M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | Wellington Management ✦ | 879.30K | -12.8% | $36.67M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | Arrowstreet Capital ✦ | 864.02K | +0.3% | $36.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | First Trust Advisors Lp | 714.38K | — | $29.79M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Dimensional Fund Advisors Lp | 671.24K | — | $27.99M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Dimensional Fund Advisors Lp | 671.24K | — | $27.99M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Dimensional Fund Advisors Lp | 671.24K | — | $27.99M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Dimensional Fund Advisors Lp | 671.24K | — | $27.99M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Dimensional Fund Advisors Lp | 671.24K | — | $27.99M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Northern Trust Corp | 597.92K | — | $24.93M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Northern Trust Corp | 597.92K | — | $24.93M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Northern Trust Corp | 597.92K | — | $24.93M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Northern Trust Corp | 597.92K | — | $24.93M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Northern Trust Corp | 597.92K | — | $24.93M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Northern Trust Corp | 597.92K | — | $24.93M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Royal Bank Of Canada | 580.56K | — | $24.21M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Morgan Stanley ✦ | 423.52K | +11.3% | $17.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Qube Research & Technologies Ltd | 376.23K | — | $15.69M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Envestnet Asset Management Inc | 365.74K | — | $15.25M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Renaissance Technologies ✦ | 333.20K | +5.7% | $13.89M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 61 | Charles Schwab Investment… | 314.84K | — | $13.13M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Bank Of America Corp /De/ | 310.60K | — | $12.95M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Bank Of America Corp /De/ | 310.60K | — | $12.95M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Bank Of America Corp /De/ | 310.60K | — | $12.95M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Bank Of America Corp /De/ | 310.60K | — | $12.95M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Bank Of America Corp /De/ | 310.60K | — | $12.95M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Bank Of America Corp /De/ | 310.60K | — | $12.95M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Goldman Sachs Group ✦ | 310.27K | +23.8% | $12.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Goldman Sachs Group ✦ | 310.27K | +23.8% | $12.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | AQR Capital Management ✦ | 297.03K | -10.4% | $12.39M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 71 | AQR Capital Management ✦ | 297.03K | -10.4% | $12.39M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 72 | AQR Capital Management ✦ | 297.03K | -10.4% | $12.39M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 73 | AQR Capital Management ✦ | 297.03K | -10.4% | $12.39M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 74 | AQR Capital Management ✦ | 297.03K | -10.4% | $12.39M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 75 | AQR Capital Management ✦ | 297.03K | -10.4% | $12.39M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 76 | Federated Hermes, Inc. | 262.50K | — | $10.95M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Federated Hermes, Inc. | 262.50K | — | $10.95M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Point72 Asset Management ✦ | 257.84K | +102.6% | $10.75M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 79 | Adage Capital Partners ✦ | 243.51K | +10.7% | $10.15M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | Bnp Paribas Financial Markets | 219.88K | — | $9.17M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Bank of New York Mellon Corp | 215.96K | — | $9.01M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Bank of New York Mellon Corp | 215.96K | — | $9.01M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Bank of New York Mellon Corp | 215.96K | — | $9.01M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Bank of New York Mellon Corp | 215.96K | — | $9.01M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Tudor Investment Corp Et Al | 200.49K | — | $8.36M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | GAMCO Investors ✦ | 188.40K | -4.8% | $7.86M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 87 | Captrust Financial Advisors | 185.46K | — | $7.73M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Canada Pension Plan Investment Board | 177.10K | — | $7.39M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Russell Investments Group, Ltd. | 146.96K | — | $6.13M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Citadel Advisors ✦ | 142.54K | -12.4% | $5.94M | 0.0% | ▼ Trim | 7 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 269 holders, 34.55M shares, $1.32B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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