OS
OneStream, Inc. Class A Common Stock · Technology · Software - Application
Momentum inputs (comparable managers):
holder breadth +6.7% ·
share flow +18.1% ·
net new positions +6.2%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 7.82M | — | $221.29M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 2 | Norges Bank ✦ (passive) | 6.34M | +1.7% | $179.52M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 2.05M | — | $58.01M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 4 | Marshall Wace ✦ | 1.99M | +9577.4% | $56.29M | 0.1% | ▲ Add | 4 | SEC ↗ ×3 |
| 5 | Citadel Advisors ✦ | 1.21M | +60.9% | $34.25M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 6 | Geode Capital Management ✦ (passive) | 946.35K | +38.7% | $26.79M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 7 | Millennium Management ✦ | 787.59K | +128.3% | $22.29M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | State Street Global Advisors ✦ (passive) | 668.94K | +10.1% | $18.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Soros Fund Management ✦ | 625.80K | +33.8% | $17.71M | 0.5% | ▲ Add | 4 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 371.25K | +1208.3% | $10.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | PRIMECAP Management ✦ | 105.90K | -27.0% | $3.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | Two Sigma Investments ✦ | 56.97K | -20.7% | $1.61M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | Fidelity (FMR) ✦ | 45.64K | — | $1.29M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 14 | Arrowstreet Capital ✦ | 13.08K | New | $370,277 | 0.0% | New | 1 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 10.05K | -2.6% | $285,000 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 16 | Renaissance Technologies ✦ | 9.20K | New | $260,360 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $370,277 | 0.0% |
| Renaissance Technologies | $260,360 | 0.0% |
Exited
| Point72 Asset Management | $5.12M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 178 holders, 91.55M shares, $1.97B 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.