Quick Takeaways
- SRB CORP has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $127,639,452.
- Recent insider filing activity is available below.
- Info
- Portfolio
- Significant Ownership
- Insider Ownership
Insider Trading & Ownership of SRB CORP
- Location
- Boston, MA
- Summary
- The estimated value of insider holdings of SRB CORP is at least $127,639,452 dollars as of 23 Mar 2026. SRB CORP is the 10%+ Owner of SAFETY INSURANCE GROUP INC and owns shares of SAFETY INSURANCE GROUP INC (SAFT) stock worth about $127.64M.
- Signature
- /s/ Frederick C. Childs
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow SRB CORP and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: SAFETY INSURANCE GROUP INC ($127,639,452).
- Past-year value change for that position: -$3,608,614.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of SRB CORP
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| SAFT | SAFETY INSURANCE GROUP INC | 10%+ Owner | $127,639,452 | -$3,608,614 | -2.7% | 20 Mar 2026 |
Insider Transactions Reported by SRB CORP:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.