# EDGAR Filing Document

**Accession Number:** 0000912869
**File Stem:** 0000912869-26-000053
**Filing Date:** 2026-6
**Character Count:** 2139
**Document Hash:** 2bb7404e66219e2564c8f4d05f9e69f0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000912869-26-000053.hdr.sgml**: 20260630

**ACCESSION NUMBER**: 0000912869-26-000053

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260630

**DATE AS OF CHANGE**: 20260630

**EFFECTIVENESS DATE**: 20260630

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Symetra SEPARATE ACCOUNT C
- **CENTRAL INDEX KEY:** 0000912869

**ORGANIZATION NAME:**
- **EIN:** 910742147
- **STATE OF INCORPORATION:** WA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-41622
- **FILM NUMBER:** 261141703

**BUSINESS ADDRESS:**
- **STREET 1:** 777 108TH AVE NE
- **STREET 2:** SUITE 1200
- **CITY:** BELLEVUE
- **STATE:** WA
- **ZIP:** 98004-5135
- **BUSINESS PHONE:** 877-796-3872

**MAIL ADDRESS:**
- **STREET 1:** 777 108TH AVE NE
- **STREET 2:** SUITE 1200
- **CITY:** BELLEVUE
- **STATE:** WA
- **ZIP:** 98004-5135

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SAFECO SEPARATE ACCOUNT C
- **DATE OF NAME CHANGE:** 19930930

## Series and Classes Contracts Data

### Symetra SEPARATE ACCOUNT C (Series ID: S000001238)

---

|  |  |
|:---|:---|
| Class Name        | Class ID   |
| Spinnaker Advisor | C000003367 |

---

## Series and Classes Contracts Data

### Symetra SEPARATE ACCOUNT C (Series ID: S000001238)

| Class ID   | Class Name        | Ticker Symbol   |
|:---|:---|:---|
| C000003367 | Spinnaker Advisor |  |

**SUPPLEMENT DATED JUNE 30, 2026**

**TO THE PROSPECTUS DATED MAY 11, 2011 AND NOTICE DOCUMENT DATED MAY 1, 2026 FOR**

**Spinnaker**<sup>®</sup> **Advisor Variable Annuity**

This supplement updates certain information in the above referenced prospectus and Notice Document for the above referenced variable annuity contract issued by Symetra Life Insurance Company.

Effective May 1, 2026, the Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S is no longer an investment option available under the contract. Accordingly, all references to Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S in the prospectus and Notice Document are removed.

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