HARBOR CAPITAL ADVISORS, INC.

Position in WTTR — Select Water Solutions, Inc.

CIK 1039128 CHICAGO, IL

Position in WTTR

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$3,792,483

+$677,878 QoQ

Shares Held

189,814

-6.8% QoQ

Ownership

0.137%

of shares outstanding

% of Portfolio

0.29%

of 13F equity value

Holder Rank

#84

of 264 holders

Holding Since

Mar 2024

10 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Energy · as of Jun 30, 2026

HARBOR CAPITAL ADVISORS, INC. holds $16,592,291 across 18 Oil & Gas Equipment & Services names. WTTR ranks #1 (22.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WTTR	Select Water Solutions, Inc. This page	189,814	$3,792,483
2	OII	Oceaneering International Inc	71,652	$2,903,339
3	TDW	Tidewater Inc	40,405	$2,692,185
4	AROC	Archrock, Inc.	61,145	$2,489,212
5	KGS	Kodiak Gas Services, Inc.	19,677	$1,478,333
6	NOV	NOV Inc.	71,978	$1,335,191
7	SLB	Slb Limited/Nv	24,273	$1,128,451
8	WFRD	Weatherford International plc	3,955	$322,332

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$3,792,483	189,814	-6.8%	Shares	Sole	2026-08-07
2026-03-31	$3,114,605	203,569	-14.1%	Shares	Sole	2026-04-28
2025-12-31	$2,493,587	237,033	-21.7%	Shares	Sole	2026-01-20
2025-09-30	$3,235,969	302,710	-71.3%	Shares	Sole	2025-10-15
2025-06-30	$9,107,812	1,054,145	+3.8%	Shares	Sole	2025-07-09
2025-03-31	$10,662,256	1,015,453	+0.3%	Shares	Sole	2025-04-14
2024-12-31	$13,399,714	1,012,063	-9.7%	Shares	Sole	2025-01-10
2024-09-30	$12,478,354	1,121,146	+148.1%	Shares	Sole	2024-10-29
2024-06-30	$4,834,741	451,845	+273.4%	Shares	Sole	2024-07-09
2024-03-31	$1,116,894	121,007	—	Shares	Sole	2024-05-13
No filing history on record for this holder in this stock.