Security record · archived quarter
NSSC
Napco Security Technologies, Inc. · Industrials · Security & Protection Services
21Tracked holders
0Δ holders
12.44MShares held
$534.26MReported value
+1New positions
−2Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +2.2% · net new positions -4.8% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 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 · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 2.85M | -0.3% | $122.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 2.85M | -0.3% | $122.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 2.85M | -0.3% | $122.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 2.85M | -0.3% | $122.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 2.85M | -0.3% | $122.43M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Geode Capital Management ✦ (passive) | 1.02M | -0.7% | $44.01M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 21 | Geode Capital Management ✦ (passive) | 1.02M | -0.7% | $44.01M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 22 | Wellington Management ✦ | 1.01M | -2.9% | $43.33M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 23 | Wellington Management ✦ | 1.01M | -2.9% | $43.33M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 24 | Wellington Management ✦ | 1.01M | -2.9% | $43.33M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 25 | Arrowstreet Capital ✦ | 861.14K | +668.4% | $36.99M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | State Street Global Advisors ✦ (passive) | 783.82K | -3.7% | $33.78M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 27 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | AQR Capital Management ✦ | 331.51K | +7.7% | $14.24M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 331.51K | +7.7% | $14.24M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 331.51K | +7.7% | $14.24M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 56 | AQR Capital Management ✦ | 331.51K | +7.7% | $14.24M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 57 | AQR Capital Management ✦ | 331.51K | +7.7% | $14.24M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 58 | Renaissance Technologies ✦ | 315.10K | +5.5% | $13.53M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 59 | Goldman Sachs Group ✦ | 250.57K | — | $10.76M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Goldman Sachs Group ✦ | 250.57K | — | $10.76M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Adage Capital Partners ✦ | 220.00K | New | $9.45M | 0.0% | New | 1 | SEC ↗ |
| 62 | GAMCO Investors ✦ | 198.00K | 0.0% | $8.50M | 0.1% | Held | 6 | SEC ↗ |
| 63 | D. E. Shaw & Co. ✦ | 163.90K | -12.3% | $7.04M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Citadel Advisors ✦ | 162.79K | +44.4% | $6.99M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 65 | Point72 Asset Management ✦ | 127.24K | +61.7% | $5.47M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 66 | Millennium Management ✦ | 122.80K | -62.3% | $5.27M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 67 | Fidelity (FMR) ✦ | 97.91K | -77.3% | $4.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Fidelity (FMR) ✦ | 97.91K | -77.3% | $4.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Fidelity (FMR) ✦ | 97.91K | -77.3% | $4.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 70 | Fidelity (FMR) ✦ | 97.91K | -77.3% | $4.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 71 | Marshall Wace ✦ | 93.70K | -43.7% | $4.02M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 72 | Marshall Wace ✦ | 93.70K | -43.7% | $4.02M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 73 | Marshall Wace ✦ | 93.70K | -43.7% | $4.02M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 74 | T. Rowe Price ✦ | 24.31K | +5.0% | $1.04M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 75 | Gotham Asset Management ✦ | 20.54K | -25.4% | $882,365 | 0.0% | ▼ Trim | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Adage Capital Partners | $9.45M | 0.0% |
Exited
| Norges Bank | $5.96M | was 0.0% |
| Two Sigma Investments | $416,580 | 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: Q3 2025 ·
Methodology ·
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