BAND
Bandwidth Inc. · Technology · Software - Infrastructure
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +5.5% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 97 | +26 | 19.72M | $1.24B | +32 | −6 |
| Q1 2026 | 73 | +2 | 16.12M | $286.88M | +5 | −3 |
| Q4 2025 | 71 | +1 | 15.74M | $243.20M | +1 | — |
| Q3 2025 | 15 | -2 | 9.73M | $162.19M | — | −2 |
| Q2 2025 | 14 | -1 | 8.93M | $142.00M | — | −1 |
| Q1 2025 | 12 | +1 | 3.45M | $45.26M | +2 | −1 |
| Q4 2024 | 11 | 0 | 3.03M | $51.59M | +1 | −1 |
| Q3 2024 | 10 | -2 | 2.28M | $39.91M | — | −2 |
| Q2 2024 | 12 | — | 2.59M | $43.78M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Renaissance Technologies ✦ | 651.30K | +15.2% | $11.09M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | State Street Global Advisors ✦ (passive) | 594.23K | — | $10.11M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 570.91K | +0.4% | $9.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 570.91K | +0.4% | $9.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | D. E. Shaw & Co. ✦ | 441.73K | +37.0% | $7.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 441.73K | +37.0% | $7.52M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Arrowstreet Capital ✦ | 285.56K | +88.1% | $4.86M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Millennium Management ✦ | 136.44K | +213.5% | $2.32M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 108.34K | +8.9% | $1.84M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 100.81K | New | $1.72M | 0.0% | New | 1 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 100.81K | New | $1.72M | 0.0% | New | 1 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 97.71K | +10.5% | $1.66M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 97.71K | +10.5% | $1.66M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 97.71K | +10.5% | $1.66M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | Baillie Gifford ✦ | 27.02K | -9.9% | $459,829 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 16 | T. Rowe Price ✦ | 17.18K | +10.7% | $293,000 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $1.72M | 0.0% |
| Citadel Advisors | $1.72M | 0.0% |
Exited
| Point72 Asset Management | $6.90M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 155 holders, 23.91M shares, $398.44M 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)
Director · 3.80K sh · $201,529
Director · 200 sh · $10,833
Officer · 3.17K sh · $160,087
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology