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Hamilton Insurance Group, Ltd. announced a board change under a shareholder designation right held by the Magnitude Investor. Effective February 20, 2026, Marc N. Roston succeeded H. Hawes Bostic, III as the Magnitude Investor’s shareholder‑appointed director on Hamilton’s Board of Directors.
The company states that Mr. Bostic’s departure was not related to any disagreement regarding operations, policies or practices. Mr. Roston is expected to serve on the Board’s Investments and Technology Committees, will not receive board compensation from Hamilton, and will be reimbursed only for reasonable out‑of‑pocket expenses.
Hamilton notes that Mr. Roston is not party to any transaction requiring disclosure under Item 404(a) of Regulation S‑K. The company also issued a press release on February 25, 2026, furnished as Exhibit 99.1, describing this director appointment.
Hamilton Insurance Group, Ltd. reports continued growth as a global specialty insurance and reinsurance company, with gross premiums written rising to $2.9 billion for the year ended December 31, 2025 and a combined ratio of 92.9%, indicating underwriting profitability.
The International segment generated $1.5 billion of gross premiums written with a 95.0% combined ratio, while the Bermuda segment produced $1.4 billion with a 90.9% combined ratio. Total assets reached $9.6 billion, including $6.2 billion of cash and invested assets and shareholders’ equity of $2.8 billion.
About 55% of invested assets are in investment‑grade fixed income, and 37% are managed by Two Sigma via the TS Hamilton Fund, which returned 16.0% in 2025. The company highlights its proprietary technology platforms, strong AM Best "A" ratings, low 5.0% debt‑to‑capital ratio, and diversified E&S‑focused underwriting strategy as key competitive strengths.
Hamilton Insurance Group reported very strong fourth-quarter and full-year 2025 results and declared a sizable special dividend. For 2025, net income attributable to common shareholders was $576.7 million, or $5.55 diluted EPS, with a 22.4% return on average common equity. Gross premiums written rose 20.7% to $2.9 billion, net premiums earned increased 21.6% to $2.1 billion, and the full-year combined ratio was 92.9%, indicating underwriting profitability despite $159.0 million of catastrophe losses, mainly from California wildfires.
Investment performance was a key contributor, with $775.1 million in total net realized and unrealized gains and investment income, including strong returns from the Two Sigma Hamilton Fund. Book value per share climbed 24.2% to $28.50, and tangible book value per share reached $27.62. Reflecting this capital strength, the Board declared a special dividend of $2.00 per common share, totaling about $206.0 million, payable on March 30, 2026 to shareholders of record on March 6, 2026.
Hamilton Insurance Group, Ltd. officer and Group Treasurer reported a routine share withholding related to equity compensation. On 01/01/2026, the reporting person had 1,689 Class B common shares withheld by the company to cover tax obligations arising from the vesting of restricted stock units. The withholding price was based on the $27.9 closing share price on December 31, 2025, which was used to determine how many shares to retain for taxes.
After this transaction, the officer beneficially owned 44,176 Class B common shares, which includes restricted stock units. The filing is made as a Form 4 by a single reporting person and reflects tax-related settlement rather than an open‑market purchase or sale.
Hamilton Insurance Group, Ltd. reported a routine insider transaction by an officer on a Form 4. The reporting person is the CEO of Hamilton Select and filed individually. On 01/01/2026, the insider had 1,118 Class B common shares withheld by the company, coded as an "F" transaction, which indicates shares were surrendered to cover tax obligations.
The shares were valued using the $27.9 closing price per share on December 31, 2025 to determine how many shares to withhold for taxes arising from the vesting of restricted stock units. After this tax-withholding transaction, the insider beneficially owns 69,156 Class B common shares, which the filing notes includes restricted stock units, all reported as directly owned.
Hamilton Insurance Group, Ltd. Chief Executive Officer and director reported a routine tax-related share withholding. On 01/01/2026, 19,200 Class B common shares were surrendered to the company (transaction code F) to cover tax obligations from vesting restricted stock units. The withholding used a share price of $27.9, based on the December 31, 2025 closing price. Following this transaction, the insider directly beneficially owned 1,027,407 Class B common shares, which include restricted stock units, and indirectly beneficially owned an additional 273,799 Class B common shares through The Albo 2018 LLC.
Hamilton Insurance Group, Ltd. reported an insider share transaction by an officer serving as CEO of Hamilton Global Specialty. On 01/01/2026, the officer had 2,066 Class B common shares withheld to cover tax obligations triggered by the vesting of restricted stock units. The withholding price was $27.9 per share, based on the December 31, 2025 closing price. After this tax-related transaction, the officer beneficially owned 82,070 shares, which include restricted stock units.
Hamilton Insurance Group, Ltd. executive, the Group Head of HR & Communications, reported an automatic share disposition related to equity compensation. On January 1, 2026, 1,433 Class B common shares were withheld by the issuer, coded as an "F" transaction, to cover tax obligations arising from the vesting of the executive’s restricted stock units. The number of shares withheld was based on the $27.9 closing price per share on December 31, 2025. After this tax withholding event, the executive beneficially owned 88,663 Class B common shares, which includes restricted stock units, all reported as directly owned.
Hamilton Insurance Group, Ltd. officer and Hamilton Re CEO reported a routine share withholding transaction related to equity compensation. On 01/01/2026, 2,823 Class B common shares were withheld under code F to cover tax obligations arising from the vesting of restricted stock units. The withholding price was based on the $27.9 closing price per share on December 31, 2025. After this transaction, the reporting person beneficially owned 173,303 Class B common shares, which include restricted stock units, all held directly.
Hamilton Insurance Group, Ltd. Chief Financial Officer reported a routine share withholding related to equity compensation. On 01/01/2026, 6,084 Class B common shares were disposed of under transaction code "F," which indicates shares were withheld to cover taxes.
The shares were valued at $27.9 per share, based on the December 31, 2025 closing price used for tax withholding calculations. After this transaction, the officer beneficially owned 208,539 Class B common shares, which includes restricted stock units. The transaction reflects tax management on vested restricted stock units rather than an open-market sale.