# EDGAR Filing Document

**Accession Number:** 0000874501
**File Stem:** 0001628280-26-039234
**Filing Date:** 2026-5
**Character Count:** 8014
**Document Hash:** 88476f2369cbb687882b03b856f65a4f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-039234.hdr.sgml**: 20260529

**ACCESSION NUMBER**: 0001628280-26-039234

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 9

**CONFORMED PERIOD OF REPORT**: 20260528

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260529

**DATE AS OF CHANGE**: 20260529

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OCTAVE SPECIALTY GROUP INC
- **CENTRAL INDEX KEY:** 0000874501
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURETY INSURANCE [6351]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 133621676
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-10777
- **FILM NUMBER:** 261045646

**BUSINESS ADDRESS:**
- **STREET 1:** 40 WALL STREET
- **STREET 2:** 55TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10005
- **BUSINESS PHONE:** 2126587470

**MAIL ADDRESS:**
- **STREET 1:** 40 WALL STREET
- **STREET 2:** 55TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10005

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMBAC FINANCIAL GROUP INC
- **DATE OF NAME CHANGE:** 19980121

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMBAC INC /DE/
- **DATE OF NAME CHANGE:** 19930328

?xml version='1.0' encoding='ASCII'? osg-20260528

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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| | |
|:---|:---|
| **FORM** | **8-K** |

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**CURRENT REPORT**

**PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**Date of Report (Date of earliest event reported): May 28, 2026** 

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| |
|:---|
| Octave Specialty Group, Inc. |
| **(Exact name of Registrant as specified in its charter)** |

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| | | |
|:---|:---|:---|
| **Delaware** | **1-10777** | **13-3621676** |
| **(State of incorporation)** | **(Commission<br>file number)** | **(I.R.S. employer<br>identification no.)** |

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| | | | |
|:---|:---|:---|:---|
| **40 Wall Street** | **New York** | **NY** | **10005** |
| **(Address of principal executive offices)** | **(Address of principal executive offices)** | **(Address of principal executive offices)** | **(Address of principal executive offices)** |

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| | |
|:---|:---|
| **(212)** | **658-7470** |
| **(Registrant's telephone number, including area code)** | **(Registrant's telephone number, including area code)** |

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4c))

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| | | |
|:---|:---|:---|
| Securities registered pursuant to Section 12(b) of the Act: | Securities registered pursuant to Section 12(b) of the Act: | Securities registered pursuant to Section 12(b) of the Act: |
| **Title of each class** | **Trading Symbol** | **Name of each exchange on which registered** |
| Common stock, par value $0.01 per share | OSG | New York Stock Exchange |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under the Exchange Act (17 CFR 240.12b-2).

Emerging growth company ☐

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| | |
|:---|:---|
| If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to | If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to |
| Section 13(a) of the Exchange Act. | ☐ |

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**Item 5.07 Submission of Matters to a Vote of Security Holders**

The Annual Meeting of Stockholders of Octave Specialty Group, Inc. (the "Company") was held on May 28, 2026. Represented at the meeting were 36,679,356 shares, or approximately 81% of the Company's 45,013,592 shares of common stock outstanding and entitled to vote at the meeting. Set forth below are the final voting results for the actions taken by the stockholders at the meeting.

1. The Company's stockholders elected the seven (7) director nominees named below to a term expiring at the 2027 annual meeting or until their successors are elected and qualified, with each receiving the following votes:

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| | | | | |
|:---|:---|:---|:---|:---|
| **Name** | **Number of** <br>**Votes For** | **Number of**<br>**Votes Against** | **Number of** <br>**Votes Abstained** | **Broker** <br>**Non-Votes** |
| Ian D. Haft | 24999995 | 4156759 | 34571 | 7488031 |
| Lisa G. Iglesias | 24857629 | 4301165 | 32531 | 7488031 |
| Joan Lamm-Tennant | 22694198 | 6460996 | 36131 | 7488031 |
| Claude LeBlanc | 24992946 | 4184144 | 14235 | 7488031 |
| Kristi A. Matus | 25009903 | 4149191 | 32231 | 7488031 |
| Michael D. Price | 22769583 | 6389654 | 32088 | 7488031 |
| Jeffrey S. Stein | 24783213 | 4188459 | 219653 | 7488031 |

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2. The Company's stockholders approved, by advisory (non-binding) vote, the compensation of our named executive officers, as disclosed in the Company's 2026 Proxy Statement, with the following vote:

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| | | | |
|:---|:---|:---|:---|
| **Number of**<br>**Votes For** | **Number of** <br>**Votes Against** | **Number of** <br>**Votes Abstained** | **Broker**<br>**Non-Votes** |
| 19180354 | 8212127 | 1798844 | 7488031 |

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3. The Company's stockholders ratified the selection of Ernst & Young LLP as the independent registered public accounting firm for the fiscal year ending December 31, 2026 with the following vote:

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| | | |
|:---|:---|:---|
| **Number of Votes For** | **Number of Votes Against** | **Number of Votes Abstained** |
| 34,213,342 | 136,126 | 2,329,888 |

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4. The Company's stockholders approved the Company's 2026 Incentive Compensation Plan, as disclosed in the Company's 2026 Proxy Statement, with the following vote:

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| | | | |
|:---|:---|:---|:---|
| **Number of**<br>**Votes For** | **Number of** <br>**Votes Against** | **Number of** <br>**Votes Abstained** | **Broker**<br>**Non-Votes** |
| 17334060 | 10059380 | 1797885 | 7488031 |

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**EXHIBIT INDEX**

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| | |
|:---|:---|
| **Exhibit**<br>**Number** |<br>**Exhibit Description** |
| 101.INS | XBRL Instance Document - the instance document does not appear in the interactive Data File because its XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH | XBRL Taxonomy Extension Schema Document. |
| 101.CAL | XBRL Taxonomy Extension Calculation Linkbase Document. |
| 101.LAB | XBRL Taxonomy Extension Label Linkbase Document. |
| 101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document. |
| 101.DEF | XBRL Taxonomy Extension Definition Linkbase Document. |
| 104 | Cover Page Interactive Data File - The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags or embedded within the Inline XBRL document |

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**SIGNATURES** 

**Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.** 

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| | | | |
|:---|:---|:---|:---|
| | | **Octave Specialty Group, Inc.** | **Octave Specialty Group, Inc.** |
| | | **(Registrant)** | **(Registrant)** |
| **Dated:** | **May 29, 2026** | **By:** | **/s/ Reid Powell** |
|  |  |  | **Reid Powell** |
|  |  |  | **Corporate Secretary and Assistant General Counsel** |

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