# EDGAR Filing Document

**Accession Number:** 0000912869
**File Stem:** 0000912869-26-000051
**Filing Date:** 2026-6
**Character Count:** 2940
**Document Hash:** 50916f3cc27991cb1e0b7d3bc4de1d66
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000912869-26-000051.hdr.sgml**: 20260630

**ACCESSION NUMBER**: 0000912869-26-000051

**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:** 033-69712
- **FILM NUMBER:** 261141684

**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 Variable Annuity | C000003366 |

---

## Series and Classes Contracts Data

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

| Class ID   | Class Name                 | Ticker Symbol   |
|:---|:---|:---|
| C000003366 | Spinnaker Variable Annuity |  |

**SUPPLEMENT DATED JUNE 30, 2026**

**TO THE PROSPECTUS AND UPDATING SUMMARY PROSPECTUS DATED MAY 1, 2026 FOR**

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

**Portfolios Available:**

The Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S will only be available if you have been continuously invested in it as of July 1, 2026.

In addition, the Board of Trustees of the Neuberger Berman Advisers Management Trust approved the liquidation of the Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S. The liquidation is expected to take effect on or about September 17, 2026 (the "Liquidation Date"). In preparation for the liquidation, Symetra Life Insurance Company will no longer accept purchases of the Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S after September 15, 2026. After the Liquidation Date, the Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S will no longer be an investment option under your Contract.

If you have invested in the Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S, you may transfer all money out of the Neuberger Berman AMT Mid Cap Intrinsic Value Portfolio Class S and into another investment option available under the Contract. If you do not make this transfer prior to the liquidation, your money will be automatically transferred to the money market portfolio available under your Contract on or about the Liquidation Date.

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