INSURANCE ORGANIZATIONS' SAVINGS TRUST 401(K) PLAN

[ EIN: 04-2572141 | Plan No. 002 ]

The INSURANCE ORGANIZATIONS' SAVINGS TRUST 401(K) PLAN plan, sponsored by COMMONWEALTH AUTOMOBILE REINSURERS, is listed in Form 5500 data as a 401(k) plan. The filing reports 67 participants and total assets of $25,344,953 for plan year 2024.

Form 5500 filings provide transparency into participant counts, financial structure, and compliance reporting.

---

Plan Sponsor: COMMONWEALTH AUTOMOBILE REINSURERS

Location: 101 ARCH STREET, 4TH FLOOR, BOSTON, MA 02110

EIN: 042572141

Plan Number: 002

Plan Year: 2024

Plan Size: Large Plan

Plan Entity Type: Defined Contribution

Plan Type: 401(k)

Participants: 67

Total Assets: $25,344,953

---