HG · NYSE · Insurance - Reinsurance

Hamilton Insurance Group (HG)

Underwrites global specialty insurance and reinsurance across Bermuda, Lloyd’s and US surplus-lines markets.

$33.80
After hours+0.08 (+0.24%)
At close$33.72(−0.44%)

13F · 13D/G · Form 4

Institutions≈ 81.52%54.24M shares
250 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Insiders3.61%2.40M shares
27 holders · as of Sep 14, 2026
Strategic holders21.05%14.00M shares
1 holder · as of Feb 14, 2024
Adds to106.18%

66.53M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

Two share counts disagree (66.53M in the company's Sep 22, 2026 report, 99.77M elsewhere); stakes use the report.

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

These groups come from separate filings that can overlap, so they add to 106.18%; nothing is left for Other.

13F · 13D/G · Form 4

HolderStakeSharesDate
Magnitude Capital, LLCInstitution
22.69%15.10Mas of Jun 30, 2026
Hamilton Investments, LPStrategic10 percent owner
21.05%4.14M · 9.86Mfiled Feb 14, 2024
Wellington Management Group LLPInstitution
8.68%5.78Mas of Jun 30, 2026
BlackRock, Inc.Institution
4.69%3.12Mas of Jun 30, 2026
Nuveen, LLCInstitution
3.56%2.37Mas of Jun 30, 2026
Morgan StanleyInstitution
3.12%2.07Mas of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
2.66%1.77Mas of Jun 30, 2026
Arrowstreet Capital, Limited PartnershipInstitution
2.25%1.50Mas of Jun 30, 2026
Goldman Sachs Group IncInstitution
2.10%1.40Mas of Jun 30, 2026
Federated Hermes, Inc.Institution
1.60%1.06Mas of Jun 30, 2026
American Century Companies IncInstitution
1.45%965,236as of Jun 30, 2026
Donald Smith & Co., Inc.Institution
1.32%880,490as of Jun 30, 2026
State Street CorpInstitution
1.31%869,955as of Jun 30, 2026
Private Management Group IncInstitution
1.19%794,005as of Jun 30, 2026
Lazard Asset Management LLCInstitution
1.11%736,115as of Jun 30, 2026
Bridgeway Capital Management, LLCInstitution
1.05%699,646as of Jun 30, 2026
AQR Capital Management LLCInstitution
1.01%670,763as of Jun 30, 2026
Geode Capital Management, LLCInstitution
0.96%638,208as of Jun 30, 2026
Ameriprise Financial IncInstitution
0.95%634,293as of Jun 30, 2026
Boston PartnersInstitution
0.94%623,458as of Jun 30, 2026
Mackenzie Financial CorpInstitution
0.89%593,469as of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
0.89%593,093as of Jun 30, 2026
Freestone Grove Partners LPInstitution
0.82%548,659as of Jun 30, 2026
David A. BrownInsiderdirector
0.77%510,308filed Sep 8, 2026
First Trust Advisors LPInstitution
0.75%499,450as of Jun 30, 2026

13F, as of Jun 30, 2026

250 holders · 54.24M shares · 50 new positions · 150 increased · 72 reduced · 27 closed

HolderShares% outstandingChg q/qFiled
Magnitude Capital, LLC15.10M22.69%0Aug 14, 2026
Wellington Management Group LLP5.78M8.68%+1.63MAug 14, 2026
BlackRock, Inc.3.12M4.69%+290.2KAug 7, 2026
Nuveen, LLC2.37M3.56%+4.5KAug 11, 2026
Morgan Stanley2.07M3.12%+18.6KAug 13, 2026
Dimensional Fund Advisors LP1.77M2.66%+419.0KAug 11, 2026
Arrowstreet Capital, Limited Partnership1.50M2.25%+1.7KAug 13, 2026
Goldman Sachs Group Inc1.40M2.10%+494.2KAug 14, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Wellington Management Group LLP6.20%4.14M13GMay 15, 2026
Wellington Investment Advisors Holdings LLPincl. Wellington Management Company LLP, Wellington Management Group LLP +1 more6.06%3.72M13GNov 8, 2024

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Sep 11, 2026
Timothy James Duffinofficer: Chief Underwriting Officer
Sale28,500$34.69194,959
Sep 10, 2026
Timothy James Duffinofficer: Chief Underwriting Officer
Sale28,500$34.53223,459
Sep 3, 2026
David A. Browndirector
Sale50,000$36.12400,000
May 18, 2026
David A. Browndirector
Sale37,300$32.16450,000
May 15, 2026
David A. Browndirector
Sale12,700$31.82487,300
May 13, 2026
Jonathan B. Levensonofficer: Group Treasurer
Sale6,075$30.6139,629
May 8, 2026
Jonathan B. Levensonofficer: Group Treasurer
Sale3,030$30.6745,704
May 5, 2026
Brian John Deeganofficer: Group Chief Accounting Officer
Sale11,000$30.6971,347
Apr 8, 2026
Bradley E. Cooperdirector
Purchase99$31.0199
Nov 14, 2025
Alexander James Bakerofficer: CEO, Hamilton Global Specialty
Sale18,350$26.1984,136

House and Senate disclosures

Not reported.