BAND
Bandwidth Inc. · Technology · Software - Infrastructure
Momentum inputs (comparable managers):
holder breadth -11.8% ·
share flow -1.4% ·
net new positions -13.3%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| 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 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 2.87M | -0.8% | $47.76M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | The Vanguard Group ✦ (passive) | 1.99M | +3.5% | $33.15M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | The Vanguard Group ✦ (passive) | 1.99M | +3.5% | $33.15M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | The Vanguard Group ✦ (passive) | 1.99M | +3.5% | $33.15M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 1.99M | +3.5% | $33.15M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | Geode Capital Management ✦ (passive) | 664.87K | +2.5% | $11.09M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 17 | Geode Capital Management ✦ (passive) | 664.87K | +2.5% | $11.09M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 18 | Renaissance Technologies ✦ | 648.90K | -9.6% | $10.82M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 19 | State Street Global Advisors ✦ (passive) | 632.77K | +5.0% | $10.55M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | Goldman Sachs Group ✦ | 540.34K | — | $9.01M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Goldman Sachs Group ✦ | 540.34K | — | $9.01M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Wellington Management ✦ | 437.26K | +197.7% | $7.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Wellington Management ✦ | 437.26K | +197.7% | $7.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | Wellington Management ✦ | 437.26K | +197.7% | $7.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Wellington Management ✦ | 437.26K | +197.7% | $7.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 26 | Wellington Management ✦ | 437.26K | +197.7% | $7.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 27 | AQR Capital Management ✦ | 432.13K | -26.4% | $7.20M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 28 | AQR Capital Management ✦ | 432.13K | -26.4% | $7.20M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 29 | AQR Capital Management ✦ | 432.13K | -26.4% | $7.20M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 30 | AQR Capital Management ✦ | 432.13K | -26.4% | $7.20M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 31 | AQR Capital Management ✦ | 432.13K | -26.4% | $7.20M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 32 | D. E. Shaw & Co. ✦ | 367.33K | -21.2% | $6.12M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 33 | D. E. Shaw & Co. ✦ | 367.33K | -21.2% | $6.12M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 365.35K | +6.6% | $6.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 365.35K | +6.6% | $6.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 297.10K | — | $4.95M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Arrowstreet Capital ✦ | 192.37K | -48.5% | $3.21M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 46 | Two Sigma Investments ✦ | 166.46K | +77.3% | $2.77M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 47 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | JPMorgan Chase ✦ | 103.45K | — | $1.72M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | T. Rowe Price ✦ | 27.65K | +2.5% | $461,000 | 0.0% | ▲ Add | 6 | 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
| Millennium Management | $1.42M | was 0.0% |
| Citadel Advisors | $434,165 | 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