3 unchanged sentences
No other matters require disclosure.
+Added: Octave Specialty Group, Inc.
+Added: First Quarter 2026 Form 10-Q
Number Description
Other exhibits, filed or furnished, as indicated:
+Added: 3.1 Amended and Restated Certificate of Incorporation of Octave Specialty Group, Inc.
+Added: 3.2 Amended and Restated By-Laws of Octave Specialty Group, Inc.
+Added: 10.1+ First Amendment to Credit Agreement , dated as of April 1, 2026, by and among O ctave Specialty Group, Inc.
+Added: , Cirrata V LLC, Cirrata V UK Limited, Cirrata VI, LLC, ArmadaCorp Capital, LLC, ArmadaCare, LLC, Armada Administrators LLC, the several banks and other financial institutions and lenders from time to time party thereto, and Tr uist Ban k * †
+Added: 10.2+ Form of 2026 Restricted Stock Unit Agreement f or executive offi cers
+Added: 10.3+ Form of 2026 Performance Stock Unit Agreement for executive officers
31.1+ Certification of Chief Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) Promulgated under the Securities Exchange Act of 1934, as amended.
11 unchanged sentences
++ Furnished herewith.
+Added: * Certain schedules and other similar attachments to such agreement have been omitted pursuant to Item 601(a)(5) of Regulation S-K.
+Added: The Company will furnish a copy of such omitted documents to the SEC upon request.
+Added: † Certain portions of this exhibit have been omitted pursuant to Item 601(b)(10(iv)) of Regulation S-K.
+Added: The registrant agrees to furnish supplementally an unredacted copy of the exhibit to the Securities and Exchange Commission upon its request.
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
−Removed: AMBAC FINANCIAL GROUP, INC.
−Removed: November 10, 2025 By:
+Added: OCTAVE SPECIALTY GROUP, INC.
+Added: May 6, 2026 By:
/s/ DAVID TRICK
2 unchanged sentences
Principal Financial Officer)
−Removed: Ambac Financial Group, Inc.
−Removed: Third Quarter 2025 Form 10-Q
+Added: Octave Specialty Group, Inc.
+Added: First Quarter 2026 Form 10-Q
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.