Castleark Management LLC

SEC CIK: 0001106832
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

WES holding history

Western Midstream Partners, LP in every 13F filed by Castleark Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

WES overview All 13F holders of WES Full Q2 2026 holdings

Shares (Q2 2026): 13,390
Value: $585.9K
% of portfolio: <0.1%
Quarters held: 22; Since Q1 2021

Holdings of WES by Castleark Management LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	13,390	$585.9K	<0.1%	00.0%	Unchanged	Holders
Q1 2026	13,390	$551.3K	<0.1%	−22,810−63.0%	Reduced	Holders
Q4 2025	36,200	$1.43M	<0.1%	−13,240−26.8%	Reduced	Holders
Q3 2025	49,440	$1.94M	0.1%	−20,820−29.6%	Reduced	Holders
Q2 2025	70,260	$2.72M	0.1%	−15,010−17.6%	Reduced	Holders
Q1 2025	85,270	$3.49M	0.1%	−58,180−40.6%	Reduced	Holders
Q4 2024	143,450	$5.51M	0.2%	00.0%	Unchanged	Holders
Q3 2024	143,450	$5.49M	0.2%	00.0%	Unchanged	Holders
Q2 2024	143,450	$5.70M	0.2%	00.0%	Unchanged	Holders
Q1 2024	143,450	$5.10M	0.2%	+16,650+13.1%	Added	Holders
Q4 2023	126,800	$3.71M	0.2%	00.0%	Unchanged	Holders
Q3 2023	126,800	$3.45M	0.2%	00.0%	Unchanged	Holders
Q2 2023	126,800	$3.36M	0.2%	−59,420−31.9%	Reduced	Holders
Q1 2023	186,220	$4.91M	0.2%	00.0%	Unchanged	Holders
Q4 2022	186,220	$5.00M	0.3%	00.0%	Unchanged	Holders
Q3 2022	186,220	$4.68M	0.3%	−46,550−20.0%	Reduced	Holders
Q2 2022	232,770	$5.66M	0.3%	00.0%	Unchanged	Holders
Q1 2022	232,770	$5.87M	0.3%	+5,620+2.5%	Added	Holders
Q4 2021	227,150	$5.06M	0.2%	−77,500−25.4%	Reduced	Holders
Q3 2021	304,650	$6.38M	0.2%	+31,815+11.7%	Added	Holders
Q2 2021	272,835	$5.84M	0.2%	+25,550+10.3%	Added	Holders
Q1 2021	247,285	$4.60M	0.2%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.