# EDGAR Filing Document

**Accession Number:** 0001046025
**File Stem:** 9999999995-25-003542
**Filing Date:** 2025-12
**Character Count:** 1342
**Document Hash:** 8ce044ad9ff36340afaa4baa89557608
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-003542.hdr.sgml**: 20251205

**ACCESSION NUMBER**: 9999999995-25-003542

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251204

**DATE AS OF CHANGE**: 20251205

**EFFECTIVENESS DATE**: 20251204

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HERITAGE FINANCIAL CORP /WA/
- **CENTRAL INDEX KEY:** 0001046025
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 911857900
- **STATE OF INCORPORATION:** WA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-291538
- **FILM NUMBER:** 251551091

**BUSINESS ADDRESS:**
- **STREET 1:** 201 FIFTH AVENUE S.W.
- **STREET 2:** P O BOX 1578
- **CITY:** OLYMPIA
- **STATE:** WA
- **ZIP:** 98501
- **BUSINESS PHONE:** 3609431500

**MAIL ADDRESS:**
- **STREET 1:** 205 5TH AVE SW
- **STREET 2:** P O BOX 1578
- **CITY:** OLYMPIA
- **STATE:** WA
- **ZIP:** 98501

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** December 4, 2025

**Time:** 14:00:00

**Form Type:** S-4

---

**CIK:** 0001046025

**Company Name:** HERITAGE FINANCIAL CORP /WA/

**File Number:** 333-291538