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H2O America (HTO) 10K Form and Latest SEC Filings 2026

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Latest H2O America SEC Filings & Recent Activity

H2O America (NASDAQ:HTO) has submitted 553+ documents to the U.S. Securities and Exchange Commission (SEC) since 2018. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in H2O America's financial statements. The most recent filing was a Form 8-K submitted on April 28, 2026.

Form 4
H2O AMERICA Reports Ownership Change on Apr. 22, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

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8-K
H2O America Files Current Report on Apr. 28, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

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10-K
H2O America Files Annual Report on Feb. 26, 2026

The 10-K contains H2O America's audited financial statements, revenue, earnings, and risk factors for the prior fiscal year.

View earnings history

H2O America SEC Filing History

Browse H2O America's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
04/28/2026 3:34 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/27/2026 3:12 PM
BlackRock, Inc. (2012383) Filed by
H2O America (766829) Subject
Form SCHEDULE 13G/A
04/22/2026 12:44 PM
GIP ATLAS Holdings Ltd (2131211) Reporting
H2O America (766829) Issuer
Form 3
Initial statement of beneficial ownership of securities  
04/22/2026 12:50 PM
GIP ATLAS Holdings Ltd (2131211) Reporting
H2O America (766829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/13/2026 11:10 AM
ATLAS Infrastructure Partners (0) UK
H2O America (766829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/08/2026 2:01 PM
ATLAS Infrastructure Partners (0) UK
H2O America (766829) Issuer
Form 3
Initial statement of beneficial ownership of securities  
04/08/2026 12:19 PM
ATLAS Infrastructure Partners (0) UK
H2O America (766829) Subject
Form SCHEDULE 13G/A
04/02/2026 8:02 PM
H2O America (766829) Filer
Form DEF 14A
04/02/2026 8:05 PM
H2O America (766829) Filer
Form DEFA14A
04/02/2026 8:07 PM
H2O America (766829) Filer
Form DEFA14A
04/02/2026 8:12 PM
H2O America (766829) Filer
Form ARS
03/27/2026 8:35 AM
H2O America (766829) Subject
VANGUARD GROUP INC (102909) Filed by
Form SCHEDULE 13G/A
03/10/2026 12:11 PM
ATLAS Infrastructure Partners (0) UK
H2O America (766829) Subject
Form SCHEDULE 13G
03/06/2026 7:57 PM
Future Fund Board of Guardians (1505790) Filed by
H2O America (766829) Subject
Form SCHEDULE 13G
03/04/2026 5:02 AM
H2O America (766829) Filer
Form 424B5
03/03/2026 7:43 PM
Brown Willie D. Jr. (1866152) Reporting
H2O America (766829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 6:11 PM
H2O America (766829) Issuer
Johnson A Kristen (1313291) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 6:12 PM
H2O America (766829) Issuer
Mattern Megan (2079031) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 5:37 PM
H2O America (766829) Issuer
Walters Andrew F (1598003) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 5:38 PM
H2O America (766829) Issuer
Kelly Ann P (1735307) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 5:39 PM
H2O America (766829) Issuer
Hauk Bruce A (1805479) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2026 4:45 PM
H2O America (766829) Issuer
Rowe Nick Orlando (1451547) Reporting
Form 3
Initial statement of beneficial ownership of securities  
03/03/2026 4:47 PM
H2O America (766829) Issuer
Rowe Nick Orlando (1451547) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/02/2026 4:20 PM
H2O America (766829) Filer
Form 424B5
02/26/2026 4:31 PM
H2O America (766829) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
02/25/2026 3:18 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/06/2026 8:19 PM
Brown Willie D. Jr. (1866152) Reporting
H2O America (766829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2026 8:12 PM
H2O America (766829) Issuer
Kelly Ann P (1735307) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2026 7:49 PM
H2O America (766829) Issuer
Walters Andrew F (1598003) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2026 7:24 PM
H2O America (766829) Issuer
Johnson A Kristen (1313291) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/06/2026 7:21 PM
H2O America (766829) Issuer
Hauk Bruce A (1805479) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/29/2025 3:11 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/15/2025 7:35 AM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/03/2025 4:41 PM
H2O America (766829) Issuer
Kelly Ann P (1735307) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/03/2025 4:23 PM
H2O America (766829) Issuer
Johnson A Kristen (1313291) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/14/2025 4:30 PM
Amundi (1330387) Filed by
H2O America (766829) Subject
Form SCHEDULE 13G/A
11/13/2025 4:07 PM
H2O America (766829) Subject
Walters Andrew F (1598003) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
10/28/2025 4:28 PM
H2O America (766829) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
10/27/2025 6:52 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/16/2025 3:26 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/04/2025 4:58 PM
H2O America (766829) Issuer
Johnson A Kristen (1313291) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/26/2025 7:57 AM
H2O America (766829) Issuer
Hauk Bruce A (1805479) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
07/31/2025 5:45 PM
H2O America (766829) Issuer
Mattern Megan (2079031) Reporting
Form 3
Initial statement of beneficial ownership of securities  
07/31/2025 5:47 PM
H2O America (766829) Issuer
Mattern Megan (2079031) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
07/08/2025 6:09 AM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/03/2025 3:12 PM
H2O America (766829) Issuer
Walters Andrew F (1598003) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/25/2025 4:19 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/04/2025 4:05 PM
H2O America (766829) Issuer
Johnson A Kristen (1313291) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/04/2025 4:07 PM
H2O America (766829) Issuer
Patla Craig J (1604317) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 3:39 PM
H2O America (766829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/15/2025 5:16 PM
H2O America (766829) Issuer
Heather Hunt (1371472) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:17 PM
Guardino Carl (1812484) Reporting
H2O America (766829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:17 PM
H2O America (766829) Issuer
LANDIS GREGORY P (1182432) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:18 PM
H2O America (766829) Issuer
HANLEY MARY ANN (1218375) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:19 PM
H2O America (766829) Issuer
More Daniel B. (1639398) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:38 PM
H2O America (766829) Issuer
KRUGER DENISE L (1184069) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:13 PM
H2O America (766829) Issuer
WALLACE CAROL P (1218382) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 5:14 PM
H2O America (766829) Issuer
KLEIN REBECCA A (1488085) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/13/2025 11:16 AM
H2O America (766829) Subject
STATE STREET CORP (93751) Filed by
STATE STREET CORP (93751) Filed by
Form SCHEDULE 13G
(Data available from 1/1/2016 forward)

H2O America SEC Filings - Frequently Asked Questions

H2O America (HTO) has submitted 553+ filings to the SEC since 2018. You can browse the complete history or filter by form type using the tools above.

H2O America's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results. Key financial data from these reports is available on H2O America's financial statements page.

The most recent filing was a Form 8-K submitted on April 28, 2026. This was a current report on a material business event.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NASDAQ:HTO) was last updated on 5/5/2026 by MarketBeat.com Staff.
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