William A. Zartler

CIK: 0001520378

Transaction Breakdown

Open Market Buys (P)4 (22.2%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)6 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)8 (44.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

SEI

Solaris Energy Infrastructure, Inc.

DirectorOfficer10% Owner

ARIS

Aris Water Solutions, Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (18 total)

SEI
Solaris Energy Infrastructure, Inc.
Mar 1, 2026
Award(A)
Direct
150K shares-
SEI
Solaris Energy Infrastructure, Inc.
Mar 1, 2026
Award(A)
Direct
115.7K shares-
ARIS
Aris Water Solutions, Inc.
Oct 15, 2025
Disposition(D)
Direct
488.5K shares-
ARIS
Aris Water Solutions, Inc.
Oct 15, 2025
Disposition(D)
Indirect
1.1M shares-
ARIS
Aris Water Solutions, Inc.
Oct 15, 2025
Disposition(D)
Direct
584.3K shares-
SEI
Solaris Energy Infrastructure, Inc.
Sep 9, 2025
Purchase(P)
Direct
10K shares at avg. $24.83$248K
SEI
Solaris Energy Infrastructure, Inc.
May 21, 2025
Purchase(P)
Direct
10K shares at avg. $21.78$218K
SEI
Solaris Energy Infrastructure, Inc.
Mar 7, 2025
Purchase(P)
Direct
10K shares at avg. $23.23$232K
SEI
Solaris Energy Infrastructure, Inc.
Mar 6, 2025
Purchase(P)
Direct
10K shares at avg. $24.07$241K
ARIS
Aris Water Solutions, Inc.
Mar 6, 2025
Award(A)
Direct
83.7K shares-
SEI
Solaris Energy Infrastructure, Inc.
Mar 6, 2025
Award(A)
Direct
10K shares at avg. $24.07$241K
ARIS
Aris Water Solutions, Inc.
Mar 1, 2025
Tax Payment(F)
Direct
41.5K shares at avg. $31.46$1.3M
SEI
Solaris Energy Infrastructure, Inc.
Mar 1, 2025
Award(A)
Direct
225.4K shares-
SEI
Solaris Energy Infrastructure, Inc.
Mar 1, 2025
Tax Payment(F)
Direct
81.1K shares at avg. $34.15$2.8M
ARIS
Aris Water Solutions, Inc.
Feb 12, 2025
Tax Payment(F)
Direct
16.5K shares at avg. $28.06$463K
ARIS
Aris Water Solutions, Inc.
Feb 12, 2025
Award(A)
Direct
54.9K shares-
ARIS
Aris Water Solutions, Inc.
Dec 16, 2024
Tax Payment(F)
Direct
27K shares at avg. $25.81$697K
ARIS
Aris Water Solutions, Inc.
Oct 22, 2024
Tax Payment(F)
Direct
12.9K shares at avg. $16.26$209K

		Type	Shares	Price		Ownership
Mar 1, 2026	SEI Solaris Energy Infrastructure, Inc.	Award(A)	150,000	-	$0	Direct
Mar 1, 2026	SEI Solaris Energy Infrastructure, Inc.	Award(A)	115,656	-	$0	Direct
Oct 15, 2025	ARIS Aris Water Solutions, Inc.	Disposition(D)	488,474	-	-	Direct
Oct 15, 2025	ARIS Aris Water Solutions, Inc.	Disposition(D)	1,064,617	-	-	Indirect
Oct 15, 2025	ARIS Aris Water Solutions, Inc.	Disposition(D)	584,270	-	-	Direct
Sep 9, 2025	SEI Solaris Energy Infrastructure, Inc.	Purchase(P)	10,000	$24.83	$248,300	Direct
May 21, 2025	SEI Solaris Energy Infrastructure, Inc.	Purchase(P)	10,000	$21.78	$217,800	Direct
Mar 7, 2025	SEI Solaris Energy Infrastructure, Inc.	Purchase(P)	10,000	$23.23	$232,300	Direct
Mar 6, 2025	SEI Solaris Energy Infrastructure, Inc.	Purchase(P)	10,000	$24.07	$240,700	Direct
Mar 6, 2025	ARIS Aris Water Solutions, Inc.	Award(A)	83,725	-	-	Direct
Mar 6, 2025	SEI Solaris Energy Infrastructure, Inc.	Award(A)	10,000	$24.07	$240,700	Direct
Mar 1, 2025	ARIS Aris Water Solutions, Inc.	Tax Payment(F)	41,545	$31.46	$1,307,006	Direct
Mar 1, 2025	SEI Solaris Energy Infrastructure, Inc.	Award(A)	225,378	-	-	Direct
Mar 1, 2025	SEI Solaris Energy Infrastructure, Inc.	Tax Payment(F)	81,114	$34.15	$2,770,043	Direct
Feb 12, 2025	ARIS Aris Water Solutions, Inc.	Tax Payment(F)	16,499	$28.06	$462,962	Direct
Feb 12, 2025	ARIS Aris Water Solutions, Inc.	Award(A)	54,935	-	-	Direct
Dec 16, 2024	ARIS Aris Water Solutions, Inc.	Tax Payment(F)	27,012	$25.81	$697,180	Direct
Oct 22, 2024	ARIS Aris Water Solutions, Inc.	Tax Payment(F)	12,865	$16.26	$209,185	Direct

1-18 of 18 transactions

About Zartler William A

Zartler William A (SEC CIK 0001520378) files insider reports with the SEC as Chairman and Co-CEO of Solaris Energy Infrastructure, Inc. (SEI) and Founder and Executive Chairman of Aris Water Solutions, Inc. (ARIS).

Signal8 holds 13 ownership filings by Zartler William A, all Form 4s, filed between Oct 24, 2024 and Mar 3, 2026. Those filings report 18 transactions, from Oct 22, 2024 to Mar 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Zartler William A's filings is in HOUSTON, TX.

Recent filings by Zartler William A

Mar 1, 2026: Grants or awards of SEI shares (2 lines, Form 4, code A).
Oct 15, 2025: Disposition to issuer transactions of ARIS shares (3 lines, Form 4, code D).
Sep 9, 2025: Open-market purchase of SEI shares (Form 4, code P).
May 21, 2025: Open-market purchase of SEI shares (Form 4, code P).
Mar 7, 2025: Open-market purchase of SEI shares (Form 4, code P).

Other insiders filing for Solaris Energy Infrastructure, Inc. (SEI)

TEAGUE AJ, Director
Giesinger Edgar R. JR., Director
Keenan W Howard JR, Director
Argo Laurie H, Director
BURKE JAMES R, Director
YZAGUIRRE MARIO MAX, Director

How to read Form 4 transaction codes