H2O America
HTO- Exchange
- Nasdaq
- Industry
- Water Supply
- SEC CIK
- 0000766829
No open-market purchases or sales by H2O America insiders were filed in the last 90 days; 315 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; Soros Fund Management is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by H2O America insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for H2O America, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| ATLAS Infrastructure Partners (UK) Ltd. | Other: N/A | – | Aug 19, 2026 | 4 |
| GIP ATLAS Holdings Ltd | Other: N/A | 4,582,469 | Aug 19, 2026 | 4 |
| Mattern Megan | CAO, PAO and Controller | 13,631 | Aug 3, 2026 | 2 |
| Walters Andrew F | Chief Executive Officer | 26,461 | Jul 6, 2026 | 5 |
| Kelly Ann P | CFO and Treasurer | 9,976 | Jul 6, 2026 | 4 |
| Johnson A Kristen | Chief Administrative Officer | 14,565 | Jun 3, 2026 | 4 |
| Kruger Denise L | Director | 6,923 | May 15, 2026 | 1 |
| Hanley Mary Ann | Director | 11,583 | May 15, 2026 | 1 |
| Wallace Carol P | Director | 11,238 | May 15, 2026 | 1 |
| Heather Hunt | Director | 11,238 | May 15, 2026 | 1 |
| Rowe Nick Orlando | Director | 2,452 | May 15, 2026 | 2 |
| Klein Rebecca A | Director | 9,208 | May 15, 2026 | 1 |
| More Daniel B. | Director | 1,947 | May 15, 2026 | 1 |
| Guardino Carl | Director | 9,139 | May 15, 2026 | 1 |
| Hauk Bruce A | President and COO | 16,616 | Mar 3, 2026 | 2 |
| Brown Willie D. Jr. | VP & Gen Counsel | 13,554 | Mar 3, 2026 | 2 |
| Patla Craig J | President of CTWS | 5,200 | Jun 4, 2025 | 0 |
| Landis Gregory P | Director | 12,803 | May 15, 2025 | 0 |
| Moniz-Witten Tanya | President, San Jose Water Co. | 12,812 | May 1, 2025 | 0 |
| Thornburg Eric W | President & CEO | 78,418 | Mar 4, 2025 | 0 |
| Busschops Douwe | Chief Information Officer | 1,768 | Jan 6, 2025 | 0 |
| Zerhouni Mohammed G. | SVP of Fin., Prin. Acct. Ofcr. | 3,567 | Feb 5, 2024 | 0 |
| Gere Andrew | President of SJWC | 25,410 | Mar 2, 2023 | 0 |
| Van Valer Robert A | Other: Former 10% Owner | – | Feb 14, 2023 | 0 |
| Westbrook Maureen P | President of CTWS | 40,590 | Dec 30, 2022 | 0 |
| Lynch James Patrick | Chief Accounting Officer | 25,249 | Nov 4, 2022 | 0 |
| Bishop Walter J. | Director | 5,353 | Apr 29, 2022 | 0 |
| Armstrong Katharine | Director | 6,266 | Mar 3, 2022 | 0 |
| Avila-Walker Wendy | VP of Finance, Controller | 5,806 | Jan 6, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Apr 22, 2026 (view filing) | Apr 10 | 12 daysLate | GIP ATLAS Holdings Ltd10% Owner | PPurchase | +50.4K | $59.06 | +$2.98M | +1.1%4.58M after | |
| Nov 14, 2025 (view filing) | Nov 13 | 1 day | Walters Andrew FChief Executive Officer | SSale | −2.10K | $47.22 | −$99.2K | −8.0%24.2K after | |
| Aug 23, 2024 (view filing) | Aug 22 | 1 day | Hauk Bruce AChief Operating Officer | SSale | −115 | $57.77 | −$6.64K | −1.4%8.33K after | |
| May 7, 2024 (view filing) | May 7 | Same day | Patla Craig JPresident of CTWS | SSale | −1.40K | $55.62 | −$77.9K | −29.8%3.30K after | |
| May 5, 2023 (view filing) | May 3 | 2 days | Guardino CarlDirector | SSale | −777 | $76.03 | −$59.1K | −19.6%3.18K after | 10b5-1 |
| Mar 28, 2023 (view filing) | Mar 27 | 1 day | Patla Craig JPresident of CTWS | SSale | −725 | $76.09 | −$55.2K | −9.3%7.04K after | |
| Dec 22, 2022 (view filing) | Mar 2, 2020 | 1,025 daysLate | Gere AndrewPresident and COO | PPurchase | +36 | $65.35 | +$2.35K | +9.1%430 after | 2 lots |
| Dec 22, 2022 (view filing) | Nov 23 | 29 daysLate | Gere AndrewPresident and COO | SSale | −830 | $74.72 | −$62.0K | −100.0%0 after | |
| Nov 4, 2022 (view filing) | Nov 3 | 1 day | Lynch James PatrickChief Accounting Officer | SSale | −709 | $67.27 | −$47.7K | −2.7%25.2K after | |
| Oct 21, 2022 (view filing) | Oct 20 | 1 day | Lynch James PatrickChief Accounting Officer | SSale | −803 | $63.47 | −$51.0K | −3.0%26.0K after | |
| Oct 11, 2022 (view filing) | Oct 6 | 5 days | Lynch James PatrickChief Accounting Officer | SSale | −620 | $61.00 | −$37.8K | −2.3%26.8K after | |
| Sep 26, 2022 (view filing) | Sep 22 | 4 days | Lynch James PatrickChief Accounting Officer | SSale | −533 | $62.35 | −$33.2K | −1.9%27.4K after | |
| Sep 21, 2022 (view filing) | Sep 20 | 1 day | Guardino CarlDirector | SSale | −1.18K | $64.32 | −$75.6K | −30.1%2.73K after | |
| Dec 9, 2021 (view filing) | Dec 7 | 2 days | Armstrong KatharineDirector | SSale | −2.30K | $69.58 | −$160.2K | −46.0%2.70K after | |
| Dec 6, 2021 (view filing) | Dec 3 | 3 days | Armstrong KatharineDirector | SSale | −2.00K | $68.41 | −$136.8K | −28.6%5.00K after |