Security record · archived quarter
NSSC
Napco Security Technologies, Inc. · Industrials · Security & Protection Services
97Tracked holders
-3Δ holders
24.10MShares held
$949.24MReported value
+6New positions
−10Exits
Momentum inputs (comparable managers):
holder breadth -3.0% ·
share flow +18.5% ·
net new positions -4.1%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
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 · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 5.68M | +76.2% | $223.80M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | Vanguard Capital Management Llc | 1.51M | — | $59.29M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | State Street Global Advisors ✦ (passive) | 1.43M | +59.7% | $56.52M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 17 | Janus Henderson Group Plc | 1.42M | -9.2% | $56.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | Janus Henderson Group Plc | 1.42M | -9.2% | $56.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | Janus Henderson Group Plc | 1.42M | -9.2% | $56.14M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Geode Capital Management ✦ (passive) | 1.11M | +7.7% | $43.65M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 21 | Geode Capital Management ✦ (passive) | 1.11M | +7.7% | $43.65M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 22 | Wellington Management ✦ | 929.60K | +5.7% | $36.62M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 23 | Wellington Management ✦ | 929.60K | +5.7% | $36.62M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 24 | Wellington Management ✦ | 929.60K | +5.7% | $36.62M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 25 | Arrowstreet Capital ✦ | 846.04K | -2.1% | $33.33M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 26 | Prudential Financial Inc | 750.03K | New | $29.54M | 0.0% | New | 1 | SEC ↗ |
| 27 | Prudential Financial Inc | 750.03K | New | $29.54M | 0.0% | New | 1 | SEC ↗ |
| 28 | Dimensional Fund Advisors Lp | 702.85K | +4.7% | $27.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Dimensional Fund Advisors Lp | 702.85K | +4.7% | $27.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Dimensional Fund Advisors Lp | 702.85K | +4.7% | $27.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Dimensional Fund Advisors Lp | 702.85K | +4.7% | $27.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Dimensional Fund Advisors Lp | 702.85K | +4.7% | $27.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | First Trust Advisors Lp | 685.19K | -4.1% | $26.99M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 36 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 37 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 38 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 39 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 40 | Northern Trust Corp | 584.33K | -2.3% | $23.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | Point72 Asset Management ✦ | 482.27K | +87.0% | $19.00M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 42 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 43 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 45 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 48 | Royal Bank Of Canada | 476.56K | -17.9% | $18.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 49 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Morgan Stanley ✦ | 464.86K | +9.8% | $18.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Renaissance Technologies ✦ | 436.80K | +31.1% | $17.21M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 58 | Goldman Sachs Group ✦ | 403.29K | +30.0% | $15.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Goldman Sachs Group ✦ | 403.29K | +30.0% | $15.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Envestnet Asset Management Inc | 375.64K | +2.7% | $14.80M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Charles Schwab Investment… | 338.56K | +7.5% | $13.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Bank of New York Mellon Corp | 302.97K | +40.3% | $11.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | Bank of New York Mellon Corp | 302.97K | +40.3% | $11.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 64 | Bank of New York Mellon Corp | 302.97K | +40.3% | $11.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Bank of New York Mellon Corp | 302.97K | +40.3% | $11.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Bank of New York Mellon Corp | 302.97K | +40.3% | $11.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 67 | Bank of New York Mellon Corp | 302.97K | +40.3% | $11.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 69 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 70 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 71 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 72 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 73 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 74 | AQR Capital Management ✦ | 285.03K | -4.0% | $11.23M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 75 | Captrust Financial Advisors | 274.42K | +48.0% | $10.81M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | UBS AM, a distinct business unit of… | 272.03K | +107.5% | $10.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 77 | UBS AM, a distinct business unit of… | 272.03K | +107.5% | $10.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 78 | UBS AM, a distinct business unit of… | 272.03K | +107.5% | $10.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 79 | UBS AM, a distinct business unit of… | 272.03K | +107.5% | $10.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | UBS AM, a distinct business unit of… | 272.03K | +107.5% | $10.72M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Federated Hermes, Inc. | 269.64K | +2.7% | $10.62M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Federated Hermes, Inc. | 269.64K | +2.7% | $10.62M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | Principal Financial Group Inc | 225.31K | +239.7% | $8.88M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | Principal Financial Group Inc | 225.31K | +239.7% | $8.88M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 85 | Bank Of America Corp /De/ | 221.76K | -28.6% | $8.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Bank Of America Corp /De/ | 221.76K | -28.6% | $8.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | Bank Of America Corp /De/ | 221.76K | -28.6% | $8.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | Bank Of America Corp /De/ | 221.76K | -28.6% | $8.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 89 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 93 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 98 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 100 | Russell Investments Group, Ltd. | 213.79K | +45.5% | $8.42M | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Prudential Financial Inc | $29.54M | 0.0% |
| Prudential Financial Inc | $29.54M | 0.0% |
Exited
| Adage Capital Partners | $10.15M | was 0.0% |
| Tudor Investment Corp Et Al | $8.36M | was 0.0% |
| Danske Bank A/S | $5.43M | was 0.0% |
| D. E. Shaw & Co. | $3.14M | was 0.0% |
| Jane Street Group, Llc | $1.50M | was 0.0% |
| Norges Bank | $956,390 | was 0.0% |
| Mml Investors Services, Llc | $218,375 | was 0.0% |
| Tidal Investments LLC | $212,879 | was 0.0% |
| Walleye Trading LLC | $192,112 | was 0.0% |
| Simplex Trading, Llc | $140,779 | was 0.0% |
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: Q1 2026 ·
Methodology ·
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