# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001628280-26-012438
Filing Date
2026-02-26
Accepted
2026-02-26 17:31:46
Documents
116
Period of Report
2025-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | hto-20251231.htm iXBRL | 10-K | 2597776
2 | EX-10.15 | a2025q410kexhibit1015.htm | EX-10.15 | 11921
3 | EX-10.23 | a2025q410kexhibit1023.htm | EX-10.23 | 16819
4 | EX-10.41 | a2025q410kexhibit1041.htm | EX-10.41 | 97189
5 | EX-19.1 | a2025q410kexhibit191.htm | EX-19.1 | 74468
6 | EX-21.1 | a2025q410kexhibit211.htm | EX-21.1 | 7996
7 | EX-23.1 | a2025q410kexhibit231.htm | EX-23.1 | 2323
8 | EX-31.1 | a2025q410kexhibit311.htm | EX-31.1 | 8655
9 | EX-31.2 | a2025q410kexhibit312.htm | EX-31.2 | 8600
10 | EX-32.1 | a2025q410kexhibit321.htm | EX-32.1 | 4560
11 | EX-32.2 | a2025q410kexhibit322.htm | EX-32.2 | 4539
17 |  | hto-20251231_g1.jpg | GRAPHIC | 84250
18 |  | image_0.jpg | GRAPHIC | 138004
| Complete submission text file | 0001628280-26-012438.txt |  | 14712019

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
12 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | hto-20251231.xsd | EX-101.SCH | 101738
13 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | hto-20251231_cal.xml | EX-101.CAL | 152542
14 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | hto-20251231_def.xml | EX-101.DEF | 507619
15 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | hto-20251231_lab.xml | EX-101.LAB | 1147639
16 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | hto-20251231_pre.xml | EX-101.PRE | 841739
119 | EXTRACTED XBRL INSTANCE DOCUMENT | hto-20251231_htm.xml | XML | 2219709

Mailing Address 110 W. TAYLOR STREET SAN JOSE CA 95110
Business Address 110 W. TAYLOR STREET SAN JOSE CA 95110 650 6057029
H2O AMERICA (Filer) CIK: 0000766829 (see all company filings)

EIN.: 770066628 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-08966 | Film No.: 26690703
SIC: 4941 Water Supply
(CF Office: 01 Energy & Transportation)