SJW · Insider Trading
SJW Group Common Stock
Every open-market purchase and sale reported by SJW officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-03 | Megan Mattern | CAO, PAO and Controller | F | −1,154 | −$71.51K |
| 2026-07-13 | GIP ATLAS Holdings Ltd | 10%+ Owner | Buy | +2,784 | +$172.69K |
| 2026-07-08 | ATLAS Infrastructure Partners (UK) Ltd. | 10%+ Owner | Buy | +2,784 | +$172.69K |
| 2026-07-06 | Ann P Kelly | CFO and Treasurer | F | −88 | −$5.35K |
| 2026-07-06 | Andrew F Walters | Chief Executive Officer | D | −374 | −$22.72K |
| 2026-07-02 | ATLAS Infrastructure Partners (UK) Ltd. | 10%+ Owner | MIXED | +446 | +$27.14K |
| 2026-06-05 | Andrew F Walters | Chief Executive Officer | G | −3,508 | — |
| 2026-06-03 | A Kristen Johnson | Chief Administrative Officer | A | — | — |
| 2026-06-02 | GIP ATLAS Holdings Ltd | 10%+ Owner | MIXED | +29,566 | +$1.70M |
| 2026-05-15 | Hunt Heather | Director | A | +1,947 | — |
| 2026-05-15 | Carol P Wallace | Director | A | +1,947 | — |
| 2026-05-15 | Mary Ann Hanley | Director | A | +1,947 | — |
| 2026-05-15 | Denise L Kruger | Director | A | +1,947 | — |
| 2026-05-15 | Daniel B. More | Director | A | +1,947 | — |
| 2026-05-15 | Nick Orlando Rowe | Director | A | +1,947 | — |
| 2026-05-15 | Carl Guardino | Director | A | +1,947 | — |
| 2026-05-15 | Rebecca A Klein | Director | A | +1,947 | — |
| 2026-04-22 | GIP ATLAS Holdings Ltd | 10%+ Owner | Buy | +50,385 | +$2.98M |
| 2026-04-13 | ATLAS Infrastructure Partners (UK) Ltd. | 10%+ Owner | Buy | +50,385 | +$2.98M |
| 2026-03-03 | Megan Mattern | CAO, PAO and Controller | A | +2,166 | — |
| 2026-03-03 | Bruce A Hauk | President and COO | MIXED | +3,868 | −$20.33K |
| 2026-03-03 | Ann P Kelly | CFO and Treasurer | A | +1,707 | — |
| 2026-03-03 | Andrew F Walters | Chief Executive Officer | MIXED | +7,049 | −$32.54K |
| 2026-03-03 | Willie D. Brown Jr. | VP & Gen Counsel | MIXED | +2,126 | −$28.02K |
| 2026-03-03 | Nick Orlando Rowe | Director | A | +505 | — |
| 2026-03-03 | A Kristen Johnson | Chief Administrative Officer | MIXED | +2,105 | −$25.28K |
| 2026-01-06 | A Kristen Johnson | Chief Administrative Officer | F | −674 | −$33.29K |
| 2026-01-06 | Ann P Kelly | CFO and Treasurer | F | −200 | −$9.85K |
| 2026-01-06 | Bruce A Hauk | President and COO | F | −1,025 | −$50.57K |
| 2026-01-06 | Willie D. Brown Jr. | VP & Gen Counsel | F | −743 | −$36.70K |
| 2026-01-06 | Andrew F Walters | Chief Executive Officer | F | −898 | −$44.36K |
| 2025-12-03 | Ann P Kelly | CFO and Treasurer | F | −581 | −$27.23K |
| 2025-12-03 | A Kristen Johnson | Chief Administrative Officer | A | — | — |
| 2025-11-14 | Andrew F Walters | Chief Executive Officer | Sell | −2,100 | −$99.16K |
| 2025-09-04 | A Kristen Johnson | Chief Administrative Officer | A | — | — |
| 2025-08-26 | Bruce A Hauk | President and COO | F | −116 | −$5.91K |
| 2025-07-31 | Megan Mattern | CAO, PAO and Controller | A | +12,619 | — |
| 2025-07-03 | Ann P Kelly | CFO and Treasurer | A | +952 | — |
| 2025-07-03 | Bruce A Hauk | President and COO | A | +2,076 | — |
| 2025-07-03 | Andrew F Walters | Chief Executive Officer | A | +3,580 | — |
| 2025-07-03 | A Kristen Johnson | Chief Administrative Officer | A | +2,037 | — |
| 2025-06-04 | A Kristen Johnson | Chief Administrative Officer | A | — | — |
| 2025-06-04 | Craig J Patla | President of CTWS | A | — | — |
| 2025-05-15 | Rebecca A Klein | Director | A | +2,196 | — |
| 2025-05-15 | Denise L Kruger | Director | A | +2,196 | — |
| 2025-05-15 | Mary Ann Hanley | Director | A | +2,196 | — |
| 2025-05-15 | Hunt Heather | Director | A | +2,196 | — |
| 2025-05-15 | Gregory P Landis | Director | A | +2,196 | — |
| 2025-05-15 | Carol P Wallace | Director | A | +2,196 | — |
| 2025-05-15 | Daniel B. More | Director | A | +2,196 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| GIP ATLAS Holdings Ltd | 10%+ Owner | 4,615,265 | $253.19M |
| ATLAS Infrastructure Partners (UK) Ltd. | 10%+ Owner | 4,615,265 | $253.19M |
| Eric W Thornburg | President & CEO | 78,418 | $4.30M |
| Andrew F Walters | Chief Executive Officer | 26,561 | $1.46M |
| Daniel B. More | Director | 17,085 | $937.28K |
| Bruce A Hauk | President and COO | 15,491 | $849.84K |
| A Kristen Johnson | Chief Administrative Officer | 14,565 | $799.04K |
| Willie D. Brown Jr. | VP & Gen Counsel | 14,075 | $772.15K |
| Megan Mattern | CAO, PAO and Controller | 13,631 | $747.80K |
| Tanya Moniz-Witten | President, San Jose Water Co. | 12,812 | $702.87K |
| Gregory P Landis | Director | 12,803 | $702.37K |
| Mary Ann Hanley | Director | 11,583 | $635.44K |
| Hunt Heather | Director | 11,238 | $616.52K |
| Carol P Wallace | Director | 11,238 | $616.52K |
| Ann P Kelly | CFO and Treasurer | 9,976 | $547.28K |
| Rebecca A Klein | Director | 9,208 | $505.15K |
| Carl Guardino | Director | 9,139 | $501.37K |
| Denise L Kruger | Director | 6,923 | $379.80K |
| Craig J Patla | President of CTWS | 5,200 | $285.27K |
| Nick Orlando Rowe | Director | 2,452 | $134.52K |
| Douwe Busschops | Chief Information Officer | 1,768 | $96.99K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the SJW quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.