NSSC
Napco Security Technologies, Inc. · Industrials · Security & Protection Services
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
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 88 | -5 | 23.42M | $889.65M | +4 | −10 |
| 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 | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 2.88M | -3.8% | $123.86M | 0.0% | ▼ Trim | 2 | SEC ↗ ×14 |
| 2 | The Vanguard Group ✦ (passive) | 2.85M | -0.3% | $122.43M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 3 | Geode Capital Management ✦ (passive) | 1.02M | -0.7% | $44.01M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 4 | Wellington Management ✦ | 1.01M | -2.9% | $43.33M | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 5 | Arrowstreet Capital ✦ | 861.14K | +668.4% | $36.99M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | State Street Global Advisors ✦ (passive) | 783.82K | -3.7% | $33.78M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | JPMorgan Chase ✦ | 514.81K | — | $22.11M | 0.0% | n/c | 1 | SEC ↗ ×18 |
| 8 | Morgan Stanley ✦ | 380.59K | — | $16.35M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 9 | AQR Capital Management ✦ | 331.51K | +7.7% | $14.24M | 0.0% | ▲ Add | 6 | SEC ↗ ×5 |
| 10 | Renaissance Technologies ✦ | 315.10K | +5.5% | $13.53M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 11 | Goldman Sachs Group ✦ | 250.57K | — | $10.76M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 12 | Adage Capital Partners ✦ | 220.00K | New | $9.45M | 0.0% | New | 1 | SEC ↗ |
| 13 | GAMCO Investors ✦ | 198.00K | 0.0% | $8.50M | 0.1% | Held | 6 | SEC ↗ |
| 14 | D. E. Shaw & Co. ✦ | 163.90K | -12.3% | $7.04M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 162.79K | +44.4% | $6.99M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 16 | Point72 Asset Management ✦ | 127.24K | +61.7% | $5.47M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | Millennium Management ✦ | 122.80K | -62.3% | $5.27M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 18 | Fidelity (FMR) ✦ | 97.91K | -77.3% | $4.21M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 19 | Marshall Wace ✦ | 93.70K | -43.7% | $4.02M | 0.0% | ▼ Trim | 6 | SEC ↗ ×3 |
| 20 | T. Rowe Price ✦ | 24.31K | +5.0% | $1.04M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 21 | 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.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 379.53K sh · $13.09M
Director · 20.96K sh · $725,704
Officer, Director · 95.47K sh · $3.43M
Director · 28.00K sh · $1.01M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology