HTO

insider transactions

H2O AMERICA — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Cluster buy signal: 3 different insiders made open-market purchases in the last 365 days, totalling $7.7M.

Net shares · 365d

+130.3K

131.8K buy · 1.4K sell

Net value · 365d

$7.7M

$7.7M in · $82.5K out

Sentiment · 365d

Net buying

99% buying · 1% selling

Open-market trades · 365d

131.8K buy · 1.4K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Other·G
Jun 5, 26

Andrew F Walters KEY

Chief Executive Officer

$0

3.5K sh

Own -12%
Grant·A
Jun 2, 26

Kristen A Johnson

Chief Administrative Officer

—

0 sh

Own +0%
Buy·P
May 29, 26

ATLAS Infrastructure Partners (UK) Ltd. / GIP ATLAS Holdings Ltd

10% Owner

$1.8M

31.0K sh · $57.62

Own +1%
Sell·S
May 29, 26

ATLAS Infrastructure Partners (UK) Ltd. / GIP ATLAS Holdings Ltd

10% Owner

$82.5K

1.4K sh · $57.52

Own -0%
Grant·A
May 13, 26

Daniel B. More

Director

$0

1.9K sh

Own New
Grant·A
May 13, 26

Rebecca A Klein

Director

$0

1.9K sh

Own +27%
Grant·A
May 13, 26

Nick Orlando Rowe

Director

$0

1.9K sh

Own +386%
Grant·A
May 13, 26

Hunt Heather

Director

$0

1.9K sh

Own +21%
Grant·A
May 13, 26

WALLACE CAROL P

Director

$0

1.9K sh

Own +21%
Grant·A
May 13, 26

Mary Ann Hanley

Director

$0

1.9K sh

Own +20%
Grant·A
May 13, 26

Denise L Kruger

Director

$0

1.9K sh

Own +39%
Grant·A
May 13, 26

Carl Guardino

Director

$0

1.9K sh

Own +27%
Buy·P
Apr 10, 26

ATLAS Infrastructure Partners (UK) Ltd.

10% Owner

$3.0M

50.4K sh · $59.06

Own +1%
Buy·P
Apr 10, 26

GIP ATLAS Holdings Ltd

10% Owner

$3.0M

50.4K sh · $59.06

Own +1%
Grant·A
Mar 2, 26

Kristen A Johnson

Chief Administrative Officer

—

145 sh

Own +1%
Grant·A
Mar 1, 26

Nick Orlando Rowe

Director

$0

505 sh

Own New
Grant·A
Feb 27, 26

Megan Mattern

CAO, PAO and Controller

$0

2.2K sh

Own +17%
Other·F
Feb 27, 26

Kristen A Johnson

Chief Administrative Officer

$25.3K

470 sh · $53.79

Own -3%
Grant·A
Feb 27, 26

Kristen A Johnson

Chief Administrative Officer

$0

1.3K sh

Own +9%
Grant·A
Feb 27, 26

Kristen A Johnson

Chief Administrative Officer

$0

1.3K sh

Own +11%
Other·F
Feb 27, 26

Bruce A Hauk KEY

President and COO

$20.3K

378 sh · $53.79

Own -2%
Grant·A
Feb 27, 26

Bruce A Hauk KEY

President and COO

$0

1.5K sh

Own +10%
Grant·A
Feb 27, 26

Bruce A Hauk KEY

President and COO

$0

2.7K sh

Own +22%
Grant·A
Feb 27, 26

Ann P Kelly KEY

CFO and Treasurer

$0

1.7K sh

Own +20%
Other·F
Feb 27, 26

Andrew F Walters KEY

Chief Executive Officer

$32.5K

605 sh · $53.79

Own -2%
Grant·A
Feb 27, 26

Andrew F Walters KEY

Chief Executive Officer

$0

1.7K sh

Own +6%
Grant·A
Feb 27, 26

Andrew F Walters KEY

Chief Executive Officer

$0

6.0K sh

Own +26%
Other·F
Feb 27, 26

Willie D. Brown Jr.

VP & Gen Counsel

$28.0K

521 sh · $53.79

Own -4%
Grant·A
Feb 27, 26

Willie D. Brown Jr.

VP & Gen Counsel

$0

1.3K sh

Own +10%
Grant·A
Feb 27, 26

Willie D. Brown Jr.

VP & Gen Counsel

$0

1.4K sh

Own +12%
Other·F
Jan 3, 26

Andrew F Walters KEY

Chief Executive Officer

$10.8K

216 sh · $49.86

Own -1%
Other·F
Jan 3, 26

Kristen A Johnson

Chief Administrative Officer

$8.0K

160 sh · $49.86

Own -1%
Other·F
Jan 3, 26

Bruce A Hauk KEY

President and COO

$7.6K

152 sh · $49.86

Own -1%
Other·F
Jan 3, 26

Willie D. Brown Jr.

VP & Gen Counsel

$8.9K

178 sh · $49.86

Own -2%
Other·F
Jan 2, 26

Ann P Kelly KEY

CFO and Treasurer

$9.8K

200 sh · $49.25

Own -2%
Other·F
Jan 2, 26

Andrew F Walters KEY

Chief Executive Officer

$33.6K

682 sh · $49.25

Own -3%
Other·F
Jan 2, 26

Kristen A Johnson

Chief Administrative Officer

$25.3K

514 sh · $49.25

Own -4%
Other·F
Jan 2, 26

Bruce A Hauk KEY

President and COO

$43.0K

873 sh · $49.25

Own -6%
Other·F
Jan 2, 26

Willie D. Brown Jr.

VP & Gen Counsel

$27.8K

565 sh · $49.25

Own -5%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 5, 2026	Andrew F Walters KEY	Chief Executive Officer	Other G	3.5K	-12%	—	$0
Jun 2, 2026	Kristen A Johnson	Chief Administrative Officer	Grant A	0	+0%	—	—
May 29, 2026	ATLAS Infrastructure Partners (UK) Ltd. / GIP ATLAS Holdings Ltd	10% Owner	Buy P	31.0K	+1%	$57.62	$1.8M
May 29, 2026	ATLAS Infrastructure Partners (UK) Ltd. / GIP ATLAS Holdings Ltd	10% Owner	Sell S	1.4K	-0%	$57.52	$82.5K
May 13, 2026	Daniel B. More	Director	Grant A	1.9K	New	—	$0
May 13, 2026	Rebecca A Klein	Director	Grant A	1.9K	+27%	—	$0
May 13, 2026	Nick Orlando Rowe	Director	Grant A	1.9K	+386%	—	$0
May 13, 2026	Hunt Heather	Director	Grant A	1.9K	+21%	—	$0
May 13, 2026	WALLACE CAROL P	Director	Grant A	1.9K	+21%	—	$0
May 13, 2026	Mary Ann Hanley	Director	Grant A	1.9K	+20%	—	$0
May 13, 2026	Denise L Kruger	Director	Grant A	1.9K	+39%	—	$0
May 13, 2026	Carl Guardino	Director	Grant A	1.9K	+27%	—	$0
Apr 10, 2026	ATLAS Infrastructure Partners (UK) Ltd.	10% Owner	Buy P	50.4K	+1%	$59.06	$3.0M
Apr 10, 2026	GIP ATLAS Holdings Ltd	10% Owner	Buy P	50.4K	+1%	$59.06	$3.0M
Mar 2, 2026	Kristen A Johnson	Chief Administrative Officer	Grant A	145	+1%	—	—
Mar 1, 2026	Nick Orlando Rowe	Director	Grant A	505	New	—	$0
Feb 27, 2026	Megan Mattern	CAO, PAO and Controller	Grant A	2.2K	+17%	—	$0
Feb 27, 2026	Kristen A Johnson	Chief Administrative Officer	Other F	470	-3%	$53.79	$25.3K
Feb 27, 2026	Kristen A Johnson	Chief Administrative Officer	Grant A	1.3K	+9%	—	$0
Feb 27, 2026	Kristen A Johnson	Chief Administrative Officer	Grant A	1.3K	+11%	—	$0
Feb 27, 2026	Bruce A Hauk KEY	President and COO	Other F	378	-2%	$53.79	$20.3K
Feb 27, 2026	Bruce A Hauk KEY	President and COO	Grant A	1.5K	+10%	—	$0
Feb 27, 2026	Bruce A Hauk KEY	President and COO	Grant A	2.7K	+22%	—	$0
Feb 27, 2026	Ann P Kelly KEY	CFO and Treasurer	Grant A	1.7K	+20%	—	$0
Feb 27, 2026	Andrew F Walters KEY	Chief Executive Officer	Other F	605	-2%	$53.79	$32.5K
Feb 27, 2026	Andrew F Walters KEY	Chief Executive Officer	Grant A	1.7K	+6%	—	$0
Feb 27, 2026	Andrew F Walters KEY	Chief Executive Officer	Grant A	6.0K	+26%	—	$0
Feb 27, 2026	Willie D. Brown Jr.	VP & Gen Counsel	Other F	521	-4%	$53.79	$28.0K
Feb 27, 2026	Willie D. Brown Jr.	VP & Gen Counsel	Grant A	1.3K	+10%	—	$0
Feb 27, 2026	Willie D. Brown Jr.	VP & Gen Counsel	Grant A	1.4K	+12%	—	$0
Jan 3, 2026	Andrew F Walters KEY	Chief Executive Officer	Other F	216	-1%	$49.86	$10.8K
Jan 3, 2026	Kristen A Johnson	Chief Administrative Officer	Other F	160	-1%	$49.86	$8.0K
Jan 3, 2026	Bruce A Hauk KEY	President and COO	Other F	152	-1%	$49.86	$7.6K
Jan 3, 2026	Willie D. Brown Jr.	VP & Gen Counsel	Other F	178	-2%	$49.86	$8.9K
Jan 2, 2026	Ann P Kelly KEY	CFO and Treasurer	Other F	200	-2%	$49.25	$9.8K
Jan 2, 2026	Andrew F Walters KEY	Chief Executive Officer	Other F	682	-3%	$49.25	$33.6K
Jan 2, 2026	Kristen A Johnson	Chief Administrative Officer	Other F	514	-4%	$49.25	$25.3K
Jan 2, 2026	Bruce A Hauk KEY	President and COO	Other F	873	-6%	$49.25	$43.0K
Jan 2, 2026	Willie D. Brown Jr.	VP & Gen Counsel	Other F	565	-5%	$49.25	$27.8K

About HTO insider trading

This page tracks insider transactions for H2O AMERICA (HTO) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.