Select Water Solutions, Inc.

WTTR

Exchange: NYSE
Industry: Oil & Gas Field Services, NEC
SEC CIK: 0001693256

SEC filings (opens in a new tab)

No open-market purchases or sales by Select Water Solutions, Inc. insiders were filed in the last 90 days; 266 institutions reported holding it in 13F filings for Q2 2026, worth $2.41B in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Select Water Solutions, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of WTTR: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Of which not filed for Q1 2026	Q1 2026	Change
Holders	207	3	256	+52
Shares	99.2M	6.18M	117.1M	+24.0M (+25.8%)
Value	$1.04B	$65.0M	$1.78B	+$800.0M (+81.7%)

3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (68)

Institutions that held Select Water Solutions, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to WTTR in Q1 2026
Institution	Shares	Value	% of portfolio
Vanguard Capital Management LLC	4,942,554	$75.6M	0.00%
Merewether Investment Management, LP	2,889,000	$44.2M	0.86%
Divisadero Street Capital Management, LP	1,901,651	$29.1M	1.36%
Vanguard Portfolio Management LLC	1,482,524	$22.7M	0.00%
SG Capital Management LLC	1,416,967	$21.7M	1.78%
Kailix Advisors LLC	880,230	$13.2M	11.51%
Vanguard Fiduciary Trust Co	724,559	$11.1M	0.00%
Burkehill Global Management, LP	650,000	$9.95M	0.49%
Cushing Asset Management, LP	420,000	$6.43M	0.32%
Alps Advisors Inc	315,160	$4.82M	0.02%
ExodusPoint Capital Management, LP	251,104	$3.84M	0.04%
Seven Grand Managers, LLC	250,000	$3.83M	0.26%
Westwood Holdings Group Inc.	236,262	$3.61M	0.03%
Trexquant Investment LP	212,888	$3.26M	0.02%
Assenagon Asset Management S.A.	202,182	$3.09M	0.00%
Gilder Gagnon Howe & Co LLC	194,647	$2.98M	0.04%
Oliver Luxxe Assets LLC	185,147	$2.83M	0.42%
Covalis Capital LLP	100,000	$1.53M	0.09%
Millennium Management LLC	80,237	$1.23M	0.00%
Vanguard Asset Management, Ltd	73,617	$1.13M	0.00%
Aquatic Capital Management LLC	67,539	$1.03M	0.03%
Fifth Third Bancorp	65,900	$1.01M	0.00%
Connor, Clark & Lunn Investment Management Ltd.	64,645	$989.1K	0.00%
Brevan Howard Capital Management LP	63,812	$976.3K	0.01%
Blackstone Group Inc.	60,000	$918.0K	0.00%
Dynamic Technology Lab Private Ltd	55,566	$894.5K	0.15%
Fort Washington Investment Advisors Inc	56,961	$871.5K	0.00%
Aster Capital Management (DIFC) Ltd	82,094	$862.0K	0.28%
Gallo Partners, LP	51,089	$781.7K	1.49%
Vanguard Global Advisers, LLC	47,014	$719.3K	0.00%
Clare Market Investments LLC	46,275	$708.0K	0.15%
D. E. Shaw & Co., Inc.	44,258	$677.1K	0.00%
Campbell & CO Investment Adviser LLC	42,641	$652.4K	0.04%
Healthcare of Ontario Pension Plan Trust Fund	39,314	$601.5K	0.00%
Vident Advisory, LLC	38,877	$594.8K	0.01%
Walleye Capital LLC	35,400	$541.6K	0.00%
Fox Run Management, L.L.C.	30,483	$464.0K	0.08%
Vanguard Investments Australia, Ltd.	29,167	$446.3K	0.00%
Winton Group Ltd	27,728	$424.2K	0.01%
Apollon Wealth Management, LLC	24,083	$368.5K	0.01%
Dark Forest Capital Management LP	20,962	$320.7K	0.03%
Yorktown Management & Research Co Inc	19,450	$297.6K	0.25%
Mirabella Financial Services LLP	18,723	$286.5K	0.03%
Freestone Grove Partners LP	18,619	$284.9K	0.00%
Prelude Capital Management, LLC	18,250	$279.2K	0.02%
JustInvest LLC	17,728	$271.2K	0.00%
Acadian Asset Management LLC	15,841	$242.0K	0.00%
Alpine Woods Capital Investors, LLC	15,197	$232.5K	0.06%
Prudential Financial Inc	14,935	$228.5K	0.00%
Oppenheimer Asset Management Inc.	13,022	$199.2K	0.00%
Hudson Bay Capital Management LP	11,220	$171.7K	0.00%
Omers Administration Corp	10,700	$163.7K	0.00%
LPL Financial LLC	10,469	$160.2K	0.00%
Caitong International Asset Management Co., Ltd	10,027	$153.4K	0.03%
Quantbot Technologies LP	1,264	$19.3K	0.00%
Kemnay Advisory Services Inc.	508	$7.77K	0.00%
SJS Investment Consulting Inc.	453	$6.93K	0.00%
Valued Wealth Advisors LLC	384	$5.88K	0.00%
Parallel Advisors, LLC	300	$4.59K	0.00%
GoalVest Advisory LLC	231	$3.53K	0.00%
Twin Peaks Wealth Advisors, LLC	124	$1.90K	0.00%
Root Financial Partners, LLC	94	$1.44K	0.00%
Quadrant Capital Group LLC	85	$1.30K	0.00%
JPL Wealth Management, LLC	85	$1.30K	0.00%
C M Bidwell & Associates Ltd	47	$719	0.00%
Rachor Investment Advisory Services, LLC	44	$674	0.00%
MAI Capital Management	15	$230	0.00%
Strategic Investment Solutions, Inc.	0	$153	0.00%

Sold out (16)

Institutions that held Select Water Solutions, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of WTTR in Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Lane Generational LLC	367,818	$3.87M
Jane Street Group, LLC	173,441	$1.82M
Prescott Group Capital Management, L.L.C.	150,000	$1.58M
Qube Research & Technologies Ltd	106,157	$1.12M
Clough Capital Partners L P	97,720	$1.03M
Verition Fund Management LLC	41,235	$433.8K
Adage Capital Partners GP, L.L.C.	30,000	$315.6K
Interval Partners, LP	29,931	$314.9K
Quest Partners LLC	14,339	$150.8K
Jefferies Financial Group Inc.	13,672	$143.8K
Skopos Labs, Inc.	12,583	$134.1K
Greenland Capital Management LP	12,634	$132.9K
Bitterroot Capital Advisors LLC	11,565	$121.7K
Modern Wealth Management, LLC	10,215	$107.5K
Amalgamated Bank	2,973	$31.0K
Plante Moran Financial Advisors, LLC	720	$7.57K

Not filed for Q1 2026 yet (3)

Institutions that held Select Water Solutions, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WTTR in Q4 2025 that haven't filed for Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Vanguard Group Inc	6,101,889	$64.2M
Comerica Bank	73,234	$770.4K
Global Retirement Partners, LLC	1,412	$14.9K