Traders should expect delisting from the NYSE and potential movement to OTC markets for residual trading. Holders of depositary or preference shares should monitor communications from Endurance Specialty Insurance Ltd. regarding rights and trading mechanics post-deregistration.
Price Chart
Executive Summary
Aspen Insurance Holdings Limited is terminating the registration of its securities and suspending its SEC reporting obligations following its acquisition by Endurance Specialty Insurance Ltd. The company completed a merger on February 24, 2026, after which it became a wholly owned subsidiary of the parent company. With only one holder of record, the deregistration is routine and expected post-acquisition.
Key Facts
- Aspen Insurance Holdings Limited filed Form 15-12G to terminate registration of its securities under Section 12(g) of the Exchange Act.
- The filing follows the completion of a merger on February 24, 2026, with Ajax Ltd. (a subsidiary of Endurance Specialty Insurance Ltd.), resulting in Aspen becoming a wholly owned subsidiary.
- As of the filing date, there is approximately one holder of record, qualifying the company for deregistration under Rule 12g-4(a)(1).
- The company will no longer be required to file periodic reports (e.g., 10-K, 10-Q) with the SEC.
- Securities affected include Class A Ordinary Shares and various Depositary and Preference Shares.
Financial Impact
No direct financial impact from the filing itself; reflects a structural change following acquisition.
Risk Factors
- Reduced liquidity and transparency for former public shareholders.
- Potential difficulty in valuing and trading securities without public reporting.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 15-12G Filing (Primary) | 0001628280-26-015477 |
| Document: 0001628280-26-015477-index-headers.html | 0001628280-26-015477 |
| Document: 0001628280-26-015477-index.html | 0001628280-26-015477 |
| Document: 0001628280-26-015477.txt | 0001628280-26-015477 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 9, 2026 6w ago | 6-K | — | awaiting T+20 | — | — |
Jun 11, 2026 19w ago | 6-K | — | awaiting T+20 | — | — |
May 29, 2026 21w ago | 6-K | $25.01 $23.28 | ▼ −6.92% | ▼ −5.62% | — |
Mar 6, 2026 33w ago | 15-12G | — | awaiting T+20 | — | — |
US Market Status
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