Aspen Insurance Holdings Ltd.

AHL-PD

Financials

20-FAnnual report (foreign)03/30/2620-FAnnual report (foreign)03/19/2520-FAnnual report (foreign)04/01/2420-FAnnual report (foreign)04/20/2320-FAnnual report (foreign)05/16/22

Disclosures

6-KForeign issuer report10/30/266-KForeign issuer report09/09/266-KForeign issuer report08/28/266-KForeign issuer report08/18/266-KForeign issuer report07/02/26

Prospectuses and Registrations

S-8 POSPost-effective amendment (S-8)03/03/26424B5Prospectus supplement06/11/25FWPFree writing prospectus06/10/25424B5Prospectus supplement06/09/25424B4Prospectus05/08/25

Proxies

DEFA14AAdditional proxy materials11/28/18DEFM14ADefinitive proxy (merger)11/06/18PREM14APreliminary proxy (merger)10/22/18DEFA14AAdditional proxy materials08/28/18DEF 14ADefinitive proxy03/19/18

Ownership

Form 3Initial insider ownership07/09/26Form 3Initial insider ownership03/31/26Form 3Initial insider ownership03/31/26Form 3Initial insider ownership03/31/26Form 3Initial insider ownership03/31/26

Other

15-12GCertification of termination of registration03/06/2625-NSERemoval from listing02/24/26UPLOADLetter from the SEC11/19/25CORRESPCorrespondence with the SEC07/15/25UPLOADLetter from the SEC06/05/25