OSG
Octave Specialty Group, Inc. · Financial Services · Insurance - Specialty
Momentum inputs (comparable managers):
holder breadth +10.0% ·
share flow +12.2% ·
net new positions +9.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 63 | -1 | 16.53M | $103.10M | +6 | −7 |
| Q1 2026 | 66 | +3 | 17.21M | $80.13M | +9 | −7 |
| Q4 2025 | 64 | +2 | 20.99M | $163.30M | +3 | — |
| Q3 2025 | 15 | -1 | 13.08M | $109.08M | — | −2 |
| Q2 2025 | 14 | -1 | 14.28M | $101.37M | +1 | −2 |
| Q1 2025 | 12 | -1 | 5.14M | $45.01M | — | −1 |
| Q4 2024 | 13 | +1 | 4.89M | $61.81M | +1 | — |
| Q3 2024 | 11 | +1 | 3.82M | $42.83M | +1 | — |
| Q2 2024 | 10 | — | 3.41M | $43.67M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 1.03M | +2.9% | $11.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.03M | +2.9% | $11.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Citadel Advisors ✦ | 729.23K | +76.5% | $8.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Citadel Advisors ✦ | 729.23K | +76.5% | $8.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | D. E. Shaw & Co. ✦ | 475.46K | +8.5% | $5.33M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 475.46K | +8.5% | $5.33M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Marshall Wace ✦ | 364.57K | +5.5% | $4.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Marshall Wace ✦ | 364.57K | +5.5% | $4.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | Renaissance Technologies ✦ | 289.50K | +146.9% | $3.25M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Millennium Management ✦ | 275.66K | +263.4% | $3.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | Norges Bank ✦ (passive) | 263.10K | -23.0% | $2.95M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | Arrowstreet Capital ✦ | 245.42K | -59.9% | $2.75M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Two Sigma Investments ✦ | 93.75K | New | $1.05M | 0.0% | New | 1 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 39.79K | +1.1% | $447,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 15.25K | -35.1% | $170,975 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 15.25K | -35.1% | $170,975 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Two Sigma Investments | $1.05M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 147 holders, 32.27M shares, $149.22M 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.