# EDGAR Filing Document

**Accession Number:** 0001056903
**File Stem:** 0001140361-26-013119
**Filing Date:** 2026-4
**Character Count:** 2029
**Document Hash:** 850f52820446a8ca5a889559da210af3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-013119.hdr.sgml**: 20260403

**ACCESSION NUMBER**: 0001140361-26-013119

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260403

**DATE AS OF CHANGE**: 20260403

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN STATES WATER CO
- **CENTRAL INDEX KEY:** 0001056903
- **STANDARD INDUSTRIAL CLASSIFICATION:** WATER SUPPLY [4941]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 954676679
- **STATE OF INCORPORATION:** CA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14431
- **FILM NUMBER:** 26836922

**BUSINESS ADDRESS:**
- **STREET 1:** 630 E FOOTHILL BLVD
- **CITY:** SAN DIMAS
- **STATE:** CA
- **ZIP:** 91773-9016
- **BUSINESS PHONE:** 9093943600

**MAIL ADDRESS:**
- **STREET 1:** 630 E FOOTHILL
- **CITY:** SAN DIMAS
- **STATE:** CA
- **ZIP:** 91773-9016

#### UNITED STATES

#### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### <br>

### SCHEDULE 14A

#### Proxy Statement Pursuant to Section 14(a) of the

#### Securities Exchange Act of 1934 (Amendment No.)

#### <br>

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))**

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

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| |
|:---|
| American States Water Company |
| **(Name of Registrant as Specified In Its Charter)** |
| **(Name of Person(s) Filing Proxy Statement, if other than the Registrant)** |

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Payment of Filing Fee (Check the appropriate box):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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