Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in HG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Magnitude Capital, LLC | 15.1M | $450.3M | 0.0% | 15.145% | 100.00% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 4.1M | $123.6M | -5.3% | 4.157% | 0.02% |
| 3 | BlackRock, Inc. | 2.8M | $84.4M | -0.4% | 2.839% | 0.00% |
| 4 | Nuveen, LLC | 2.4M | $70.6M | +6.5% | 2.373% | 0.02% |
| 5 | MORGAN STANLEY | 2.1M | $61.3M | -25.8% | 2.063% | 0.00% |
| 6 | DONALD SMITH & CO., INC. | 1.6M | $49.2M | +6.2% | 1.654% | 0.89% |
| 7 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.5M | $44.7M | +10.3% | 1.502% | 0.02% |
| 8 | DIMENSIONAL FUND ADVISORS LP | 1.4M | $40.3M | +32.6% | 1.356% | 0.01% |
| 9 | LAZARD ASSET MANAGEMENT LLC | 1.0M | $31.3M | +9.4% | 1.053% | 0.05% |
| 10 | FEDERATED HERMES, INC. | 946K | $28.2M | +11.0% | 0.949% | 0.05% |
| 11 | AMERICAN CENTURY COMPANIES INC | 924K | $27.6M | -20.4% | 0.927% | 0.01% |
| 12 | GOLDMAN SACHS GROUP INC | 902K | $26.9M | +149.0% | 0.904% | 0.00% |
| 13 | PRIVATE MANAGEMENT GROUP INC | 868K | $25.9M | -0.8% | 0.870% | 0.75% |
| 14 | MILLENNIUM MANAGEMENT LLC | 797K | $23.8M | -9.6% | 0.799% | 0.02% |
| 15 | STATE STREET CORP | 773K | $23.1M | -0.9% | 0.775% | 0.00% |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 681K | $20.3M | -2.2% | 0.683% | 0.41% |
| 17 | AQR CAPITAL MANAGEMENT LLC | 678K | $20.2M | +21.2% | 0.680% | 0.01% |
| 18 | Boston Partners | 589K | $17.6M | +436.3% | 0.591% | 0.02% |
| 19 | AMERIPRISE FINANCIAL INC | 586K | $17.5M | +37.0% | 0.588% | 0.00% |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 546K | $16.3M | +0.6% | 0.548% | 0.00% |
| 21 | National Philanthropic Trust | 854K | $16.3M | — | 0.857% | 0.03% |
| 22 | VANGUARD PORTFOLIO MANAGEMENT LLC | 513K | $15.3M | — | 0.514% | 0.00% |
| 23 | FIRST TRUST ADVISORS LP | 499K | $14.9M | +10.6% | 0.501% | 0.01% |
| 24 | Freestone Grove Partners LP | 493K | $14.7M | -17.4% | 0.495% | 0.11% |
| 25 | Qube Research & Technologies Ltd | 462K | $13.8M | +39.1% | 0.464% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in HG — a direct measure of their conviction.
Filings activity in HG during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 219 | +13% | 49.79% | +5.28 pp | $1.58B | +12% |
| Q4 2025 | 193 | +18% | 44.51% | +6.30 pp | $1.42B | +17% |
| Q3 2025 | 163 | 2.4% | 38.21% | +5.48 pp | $1.21B | +17% |
| Q2 2025 | 167 | +1.8% | 32.73% | +2.72 pp | $1.04B | +9.1% |
| Q1 2025 | 164 | +12% | 30.01% | +5.42 pp | $954M | +22% |
| Q4 2024 | 146 | +19% | 24.59% | 0.67 pp | $782M | 2.7% |
| Q3 2024 | 123 | +22% | 25.26% | +9.86 pp | $803M | +64% |
| Q2 2024 | 101 | — | 15.40% | — | $490M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying HG stock.
Based on Q1 2026 13F filings, institutional ownership of Hamilton Insurance Group, Ltd. stands at 49.8%, held across 219 reporting institutions.
Magnitude Capital, LLC is the largest reported institutional holder of HG, with approximately 15,096,940 shares worth $0.45B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of HG, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for HG is 69 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
48 institutions opened new positions in HG during Q1 2026, while 22 fully exited. 133 added to existing positions and 36 trimmed.
HG institutional ownership rose by 5.28 percentage points quarter-over-quarter, with a net change of +26 holders.
The top 10 institutions account for 62.2% of all reported 13F value in HG, and the top 25 account for 80.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Hamilton Insurance Group, Ltd. (HG) Institutional Ownership