Hamilton Insurance Group, Ltd.
Hamilton Insurance Group, Ltd. (HG) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · HG · as of Sep 30, 2025
Ownership Breakdown
169
Institutional Holders
▼ 3 vs Q2
$1.23B
Total Inst. Value
▲ $161.92M vs Q2
99.77M
Shares Outstanding
freeFloat 90.59%
49.74M
13F Shares Held
▲ 188,241 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
HG largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
MAGNITUDE CAPITAL, LLC | 15.10M | 14.88% | 14.88% | $374.40B | Nov 14, 2025 | — held |
WELLINGTON MANAGEMENT GROUP LLP | 5.30M | 5.22% | 5.22% | $131.38B | Nov 14, 2025 | ▲ 737.1K |
MORGAN STANLEY | 3.02M | 2.98% | 2.98% | $74.98B | May 27, 2026 | ▲ 68.3K |
BLACKROCK, INC. | 2.75M | 2.71% | 2.71% | $68.24B | Nov 12, 2025 | ▼ 73.1K |
NUVEEN, LLC | 2.15M | 2.12% | 2.12% | $53.23B | Nov 12, 2025 | ▼ 244.5K |
AMERICAN CENTURY COMPANIES INC | 2.02M | 1.99% | 1.99% | $50.19B | Nov 12, 2025 | ▼ 190.6K |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.37M | 1.35% | 1.35% | $34.06B | Nov 13, 2025 | ▲ 15.6K |
DONALD SMITH & CO., INC. | 906.8K | 89.37% | 89.37% | $22.49B | Nov 13, 2025 | ▲ 246.6K |
PRIVATE MANAGEMENT GROUP INC | 888.1K | 87.53% | 87.53% | $22.03B | Nov 13, 2025 | ▼ 3.0K |
LAZARD ASSET MANAGEMENT LLC | 877.5K | 86.48% | 86.48% | $21.76B | Nov 14, 2025 | ▲ 213.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
23
Increased
+2.92M shares2
New Positions
first time holders21
Decreased
−1.63M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.29M
+2.92M / −1.63M
Net new holders
+4
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
HG insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
11
Buy transactions
6
Sell transactions
1.83
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
BROWN DAVID A director | May 18, 2026 | Sale | 37,300 | $32.16 | $1.20M | 450.0K | Form 4 ↗ |
BROWN DAVID A director | May 15, 2026 | Sale | 12,700 | $31.82 | $404.1K | 487.3K | Form 4 ↗ |
Levenson Jonathan B. Group Treasurer | May 13, 2026 | Sale | 6,075 | $30.61 | $186.0K | 39.6K | Form 4 ↗ |
Levenson Jonathan B. Group Treasurer | May 8, 2026 | Sale | 3,030 | $30.67 | $92.9K | 45.7K | Form 4 ↗ |
Vaughan Therese M director | May 5, 2026 | Award | 4,929 | — | — | 25.8K | Form 4 ↗ |
Patterson Alan Neil director | May 5, 2026 | Award | 4,929 | — | — | 21.1K | Form 4 ↗ |
Deegan Brian John Group Chief Accounting Officer | May 5, 2026 | Sale | 11,000 | $30.69 | $337.6K | 71.3K | Form 4 ↗ |
Pestcoe Marvin director | May 5, 2026 | Award | 4,929 | — | — | 68.5K | Form 4 ↗ |
Simmons Everard Barclay director | May 5, 2026 | Award | 4,929 | — | — | 23.0K | Form 4 ↗ |
BROWN DAVID A director | May 5, 2026 | Award | 4,929 | — | — | 110.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Hamilton Insurance Group, Ltd. (HG) is primarily owned by institutional investors, who hold approximately 49.9% of total shares outstanding. Company insiders own approximately 9.41%, while retail and public investors account for the remaining 40.73%.
The largest institutional shareholder of Hamilton Insurance Group, Ltd. is MAGNITUDE CAPITAL, LLC, holding approximately 15.10 million shares — equal to 14.88% of outstanding shares — as of September 30, 2025.
A total of 169 institutional investors currently hold HG stock, with a combined institutional value of approximately $1.23 billion as of the most recent 13F filing period.
Frequently asked questions
HG ownershipHamilton Insurance Group, Ltd. (HG) is primarily owned by institutional investors, who hold approximately 49.9% of shares. The largest shareholder is MAGNITUDE CAPITAL, LLC with a 14.88% stake. Company insiders hold 9.41%. Data sourced from SEC Form 13F as of September 30, 2025.