# Filing Detail

Form 424B3 - Prospectus [Rule 424(b)(3)]:
SEC Accession No. 0001628280-25-055291
Filing Date
2025-12-04
Accepted
2025-12-04 14:01:13
Documents
12

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 424B3 | a424b3hfwa-olympicmerger.htm | 424B3 | 5901693
2 |  | bmlegalsignature002.jpg | GRAPHIC | 22007
3 |  | bvancesig.jpg | GRAPHIC | 199429
4 |  | cla.jpg | GRAPHIC | 7856
5 |  | cliftonlarsonallen.jpg | GRAPHIC | 22536
6 |  | csmithsignature.jpg | GRAPHIC | 288141
7 |  | davidson.jpg | GRAPHIC | 10035
8 |  | heritagefinanciallogo.jpg | GRAPHIC | 36417
9 |  | image.jpg | GRAPHIC | 11982
10 |  | olympicbancorplogo.jpg | GRAPHIC | 16252
11 |  | piperlogo.jpg | GRAPHIC | 4272
12 |  | stevesigbluerevised.jpg | GRAPHIC | 40632
| Complete submission text file | 0001628280-25-055291.txt |  | 6801588

Mailing Address 205 5TH AVE SW P O BOX 1578 OLYMPIA WA 98501
Business Address 201 FIFTH AVENUE S.W. P O BOX 1578 OLYMPIA WA 98501 3609431500
HERITAGE FINANCIAL CORP /WA/ (Filer) CIK: 0001046025 (see all company filings)

EIN.: 911857900 | State of Incorp.: WA | Fiscal Year End: 1231
Type: 424B3 | Act: 33 | File No.: 333-291538 | Film No.: 251548976
SIC: 6036 Savings Institutions, Not Federally Chartered
(CF Office: 02 Finance)