H2O America (NASDAQ: HTO) insider transactions
In the twelve months to 10 November 2026, executives and directors of H2O America reported 2 open-market sales of 3,786 shares ($201,570) and 4 open-market purchases of 105,686 shares ($6.3m), by 3 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 30 July 2026 | Mattern Megan | CAO, PAO and Controller | Shares withheld for tax | −1,154 | $61.97 | 13,631 | Form 4 |
| 7 July 2026 | ATLAS Infrastructure Partners (UK) Ltd. | — | Open-market purchase | +2,784 | $62.03 | 4,615,265 | Form 4 |
| 1 July 2026 | Walters Andrew F | Chief Executive Officer | Returned to the company | −374 | $60.74 | 26,461 | Form 4 |
| 1 July 2026 | Kelly Ann P | CFO and Treasurer | Shares withheld for tax | −88 | $60.74 | 9,976 | Form 4 |
| 1 July 2026 | ATLAS Infrastructure Partners (UK) Ltd. | — | Open-market sale | −1,686 | $60.74 | 4,610,349 | Form 4 |
| 1 July 2026 | ATLAS Infrastructure Partners (UK) Ltd. | — | Open-market purchase | +2,132 | $60.76 | 4,612,481 | Form 4 |
| 5 June 2026 | Walters Andrew F | Chief Executive Officer | Gift | −3,508 | — | 26,835 | Form 4 |
| 13 May 2026 | Kruger Denise L | Director | Grant or award | +1,947 | — | 6,923 | Form 4 |
| 13 May 2026 | Hanley Mary Ann | Director | Grant or award | +1,947 | — | 11,583 | Form 4 |
| 13 May 2026 | Wallace Carol P | Director | Grant or award | +1,947 | — | 11,238 | Form 4 |
| 13 May 2026 | Heather Hunt | Director | Grant or award | +1,947 | — | 11,238 | Form 4 |
| 13 May 2026 | Rowe Nick Orlando | Director | Grant or award | +1,947 | — | 2,452 | Form 4 |
| 13 May 2026 | Klein Rebecca A | Director | Grant or award | +1,947 | — | 9,208 | Form 4 |
| 13 May 2026 | More Daniel B. | Director | Grant or award | +1,947 | — | 1,947 | Form 4 |
| 13 May 2026 | Guardino Carl | Director | Grant or award | +1,947 | — | 9,139 | Form 4 |
| 10 April 2026 | GIP ATLAS Holdings Ltd | — | Open-market purchase | +50,385 | $59.06 | 4,582,469 | Form 4 |
| 10 April 2026 | ATLAS Infrastructure Partners (UK) Ltd. | — | Open-market purchase | +50,385 | $59.06 | 4,582,469 | Form 4 |
| 1 March 2026 | Rowe Nick Orlando | Director | Grant or award | +505 | — | 505 | Form 4 |
| 27 February 2026 | Walters Andrew F | Chief Executive Officer | Grant or award | +5,950 | — | 29,244 | Form 4 |
| 27 February 2026 | Walters Andrew F | Chief Executive Officer | Grant or award | +1,704 | — | 30,948 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the H2O America page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.