William A. Zartler

Companies

• Aris Water Solutions, Inc.Chair Oct 21, 2021 to now¹
• Solaris Energy Infrastructure, Inc.Chair Mar 4, 2019 to now²
• Solaris Energy Infrastructure, Inc.Chief executive officer Mar 4, 2019 to Oct 17, 2025²
• Solaris Energy Infrastructure, Inc.Board member May 11, 2017 to May 23, 2018³
• NGL Energy Partners LPBoard member May 11, 2011 to May 26, 2011⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• SESolaris Energy Infrastructure, Inc. SEI4,240,315 shares⁵$278.9M at $65.77Mar 3, 2026
• AWAris Water Solutions, Inc.0 shares⁶Oct 15, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 1, 2026Granted 115,656 shares of Solaris Energy Infrastructure, Inc.⁵
• Mar 1, 2026Granted 150,000 shares of Solaris Energy Infrastructure, Inc.⁵
• Oct 15, 2025Returned to company 1,064,617 shares of Aris Water Solutions, Inc.⁶
• Oct 15, 2025Returned to company 488,474 shares of Aris Water Solutions, Inc.⁶
• Oct 15, 2025Returned to company 584,270 shares of Aris Water Solutions, Inc.⁶
• Sep 9, 2025Bought 10,000 shares at $24.83 of Solaris Energy Infrastructure, Inc.⁷
• May 21, 2025Bought 10,000 shares at $21.78 of Solaris Energy Infrastructure, Inc.⁸
• Mar 7, 2025Bought 10,000 shares at $23.23 of Solaris Energy Infrastructure, Inc.⁹
• Mar 6, 2025Bought 10,000 shares at $24.07 of Solaris Energy Infrastructure, Inc.¹⁰
• Mar 6, 2025Granted 10,000 shares at $24.07 of Solaris Energy Infrastructure, Inc.¹¹
• Mar 6, 2025Granted 83,725 shares of Aris Water Solutions, Inc.¹²
• Mar 1, 2025Shares withheld for tax 81,114 shares at $34.15 of Solaris Energy Infrastructure, Inc.¹³
• Mar 1, 2025Granted 225,378 shares of Solaris Energy Infrastructure, Inc.¹³
• Mar 1, 2025Shares withheld for tax 41,545 shares at $31.46 of Aris Water Solutions, Inc.¹⁴
• Feb 12, 2025Shares withheld for tax 16,499 shares at $28.06 of Aris Water Solutions, Inc.¹⁵
• Feb 12, 2025Granted 54,935 shares of Aris Water Solutions, Inc.¹⁵
• Dec 16, 2024Shares withheld for tax 27,012 shares at $25.81 of Aris Water Solutions, Inc.¹⁶
• Oct 22, 2024Shares withheld for tax 12,865 shares at $16.26 of Aris Water Solutions, Inc.¹⁷
• Mar 1, 2024Shares withheld for tax 52,588 shares at $8.47 of Solaris Energy Infrastructure, Inc.¹⁸
• Mar 1, 2024Granted 122,034 shares of Aris Water Solutions, Inc.¹⁹
• Mar 1, 2024Granted 267,411 shares of Solaris Energy Infrastructure, Inc.¹⁸
• Mar 1, 2024Shares withheld for tax 21,126 shares at $12.04 of Aris Water Solutions, Inc.¹⁹
• Dec 18, 2023Shares withheld for tax 26,305 shares at $7.88 of Aris Water Solutions, Inc.²⁰
• Oct 23, 2023Shares withheld for tax 7,961 shares at $8.34 of Aris Water Solutions, Inc.²¹
• Mar 10, 2023Granted 113,255 shares of Aris Water Solutions, Inc.²²