THG
The Hanover Insurance Group, Inc. · Financial Services · Insurance - Property & Casualty
Momentum inputs (comparable managers):
holder breadth +15.4% ·
share flow +5.2% ·
net new positions +13.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 125 | +1 | 23.81M | $5.06B | +6 | −4 |
| Q1 2026 | 126 | -3 | 23.31M | $4.05B | +2 | −6 |
| Q4 2025 | 128 | +2 | 25.69M | $4.69B | +4 | −1 |
| Q3 2025 | 18 | 0 | 13.29M | $2.41B | — | −1 |
| Q2 2025 | 16 | -2 | 13.46M | $2.29B | — | −2 |
| Q1 2025 | 15 | +2 | 5.04M | $875.60M | +3 | −1 |
| Q4 2024 | 13 | -2 | 4.79M | $740.67M | — | −2 |
| Q3 2024 | 14 | 0 | 3.67M | $543.59M | +3 | −3 |
| Q2 2024 | 14 | — | 3.16M | $396.51M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 1.28M | +0.2% | $223.25M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 1.28M | +0.2% | $223.25M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 1.27M | -1.5% | $220.47M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 683.35K | +4.9% | $118.90M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 683.35K | +4.9% | $118.90M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 457.81K | +59.3% | $79.03M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 457.81K | +59.3% | $79.03M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 457.81K | +59.3% | $79.03M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 457.81K | +59.3% | $79.03M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 457.81K | +59.3% | $79.03M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 11 | Norges Bank ✦ (passive) | 443.01K | +0.9% | $77.06M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | Adage Capital Partners ✦ | 365.00K | +26.3% | $63.49M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 13 | Markel Group ✦ | 280.00K | +4.9% | $48.71M | 0.4% | ▲ Add | 4 | SEC ↗ |
| 14 | Markel Group ✦ | 280.00K | +4.9% | $48.71M | 0.4% | ▲ Add | 4 | SEC ↗ |
| 15 | Millennium Management ✦ | 88.37K | +61.0% | $15.37M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | Gotham Asset Management ✦ | 82.96K | +22.6% | $14.43M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 17 | Bridgewater Associates ✦ | 30.90K | +263.9% | $5.37M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | Two Sigma Investments ✦ | 20.43K | -68.3% | $3.55M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 19 | Citadel Advisors ✦ | 13.81K | New | $2.40M | 0.0% | New | 1 | SEC ↗ |
| 20 | Renaissance Technologies ✦ | 11.30K | New | $1.97M | 0.0% | New | 1 | SEC ↗ |
| 21 | D. E. Shaw & Co. ✦ | 4.95K | New | $860,357 | 0.0% | New | 1 | SEC ↗ |
| 22 | Marshall Wace ✦ | 4.21K | +185.2% | $732,156 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Marshall Wace ✦ | 4.21K | +185.2% | $732,156 | 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 | $2.40M | 0.0% |
| Renaissance Technologies | $1.97M | 0.0% |
| D. E. Shaw & Co. | $860,357 | 0.0% |
Exited
| Wellington Management | $13.92M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 499 holders, 31.25M shares, $5.07B 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 · 400 sh · $88,004
Officer · 1.70K sh · $379,941
Officer · 224 sh · $49,900
Officer · 4.82K sh · $1.06M
Officer · 1.50K sh · $333,704
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology