Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001628280-26-014653
Filing Date
2026-03-04
Accepted
2026-03-04 16:29:42
Documents
152
Period of Report
2025-12-31

Document Format Files

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16 ambc-20251231_g1.jpg GRAPHIC 3081
17 ambc-20251231_g2.jpg GRAPHIC 21848
18 ambc-20251231_g3.jpg GRAPHIC 91117
  Complete submission text file 0001628280-26-014653.txt   28255086

Data Files

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155 EXTRACTED XBRL INSTANCE DOCUMENT ambc-20251231_htm.xml XML 4973114
Mailing Address 40 WALL STREET 55TH FLOOR NEW YORK NY 10005
Business Address 40 WALL STREET 55TH FLOOR NEW YORK NY 10005 2126587470
OCTAVE SPECIALTY GROUP INC (Filer) CIK: 0000874501 (see all company filings)

EIN.: 133621676 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-10777 | Film No.: 26721801
SIC: 6351 Surety Insurance
(CF Office: 02 Finance)