Swiss National Bank

Bank

Position in WTTR — Select Water Solutions, Inc.

CIK 1582202 ZURICH, V8

Position in WTTR

as of Mar 31, 2026 · filed May 7, 2026 Compact

Position Value

$3,413,430

+$1,452,502 QoQ

Shares Held

223,100

+19.7% QoQ

Ownership

0.161%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Energy · as of Mar 31, 2026

Swiss National Bank holds $659,930,090 across 25 Oil & Gas Equipment & Services names. WTTR ranks #15 (0.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	SLB	Slb Limited/Nv	4,384,324	$225,310,410
2	BKR	Baker Hughes Co	2,895,920	$176,795,916
3	HAL	Halliburton Co	2,469,900	$96,301,401
4	FTI	TechnipFMC plc	807,100	$55,794,823
5	NOV	NOV Inc.	722,000	$13,580,820
6	WFRD	Weatherford International plc	141,700	$13,401,986
7	AROC	Archrock, Inc.	329,300	$11,459,640
8	KGS	Kodiak Gas Services, Inc.	169,500	$9,885,240

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$3,413,430	223,100	+19.7%	Shares	Sole	2026-05-07
2025-12-31	$1,960,928	186,400	+3.7%	Shares	Sole	2026-02-12
2025-09-30	$1,920,993	179,700	0.0%	Shares	Sole	2025-11-13
2025-06-30	$1,552,608	179,700	0.0%	Shares	Sole	2025-08-12
2025-03-31	$1,886,850	179,700	-1.2%	Shares	Sole	2025-05-12
2024-12-31	$2,408,356	181,900	+0.8%	Shares	Sole	2025-02-10
2024-09-30	$2,008,965	180,500	0.0%	Shares	Sole	2024-11-07
2024-06-30	$1,931,350	180,500	-2.2%	Shares	Sole	2024-08-08
2024-03-31	$1,703,858	184,600	+6.2%	Shares	Sole	2024-05-07
2023-12-31	$1,319,142	173,800	-6.4%	Shares	Sole	2024-02-06
2023-09-30	$1,476,315	185,700	+2.8%	Shares	Sole	2023-11-08
2023-06-30	$1,463,670	180,700	+31.3%	Shares	Sole	2023-08-09
2023-03-31	$957,696	137,600	-10.6%	Shares	Sole	2023-05-10
2022-12-31	$1,422,960	154,000	+1.9%	Shares	Sole	2023-02-08
2022-09-30	$1,053,167	151,100	0.0%	Shares	Sole	2022-11-09
2022-06-30	$1,030,502	151,100	0.0%	Shares	Sole	2022-08-09
2022-03-31	$1,294,927	151,100	+8.9%	Shares	Sole	2022-05-09
2021-12-31	$864,724	138,800	0.0%	Shares	Sole	2022-02-08
2021-09-30	$720,372	138,800	0.0%	Shares	Sole	2021-11-08
2021-06-30	$838,352	138,800	0.0%	Shares	Sole	2021-08-06
2021-03-31	$691,224	138,800	+2.1%	Shares	Sole	2021-05-07
2020-12-31	$557,600	136,000	0.0%	Shares	Sole	2021-02-05
2020-09-30	$522,240	136,000	0.0%	Shares	Sole	2020-11-09
2020-06-30	$666,400	136,000	+8.8%	Shares	Sole	2020-08-05
2020-03-31	$403,750	125,000	—	Shares	Sole	2020-05-08
No filing history on record for this holder in this stock.