Mattern Capital Management, LLC

SEC CIK: 0001803227
Latest filing: Jul 24, 2026

SEC filings (opens in a new tab)

PSX holding history

Phillips 66 in every 13F filed by Mattern Capital Management, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q2 2026): 36,899
Value: $6.24M
% of portfolio: 0.7%
Quarters held: 22; Since Q1 2021

Holdings of PSX by Mattern Capital Management, LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	36,899	$6.24M	0.7%	−51,700−58.4%	Reduced	Holders
Q1 2026	88,599	$16.1M	1.9%	−1,850−2.0%	Reduced	Holders
Q4 2025	90,449	$11.7M	1.4%	−2,638−2.8%	Reduced	Holders
Q3 2025	93,087	$12.7M	1.5%	−1,111−1.2%	Reduced	Holders
Q2 2025	94,198	$11.2M	1.4%	+2,012+2.2%	Added	Holders
Q1 2025	92,186	$11.4M	1.4%	−2,190−2.3%	Reduced	Holders
Q4 2024	94,376	$10.8M	1.4%	+5,510+6.2%	Added	Holders
Q3 2024	88,866	$11.7M	1.5%	−378−0.4%	Reduced	Holders
Q2 2024	89,244	$12.6M	1.7%	−1,024−1.1%	Reduced	Holders
Q1 2024	90,268	$14.7M	2.0%	−8,960−9.0%	Reduced	Holders
Q4 2023	99,228	$13.2M	1.9%	+397+0.4%	Added	Holders
Q3 2023	98,831	$11.9M	1.9%	+6,961+7.6%	Added	Holders
Q2 2023	91,870	$8.76M	1.4%	+4,006+4.6%	Added	Holders
Q1 2023	87,864	$8.91M	1.6%	+5,250+6.4%	Added	Holders
Q4 2022	82,614	$8.60M	1.6%	−6,806−7.6%	Reduced	Holders
Q3 2022	89,420	$7.22M	1.5%	−541−0.6%	Reduced	Holders
Q2 2022	89,961	$7.38M	1.5%	−5,889−6.1%	Reduced	Holders
Q1 2022	95,850	$8.28M	1.5%	−583−0.6%	Reduced	Holders
Q4 2021	96,433	$6.99M	1.2%	+351+0.4%	Added	Holders
Q3 2021	96,082	$6.73M	1.3%	+2,874+3.1%	Added	Holders
Q2 2021	93,208	$8.00M	1.6%	+1,058+1.1%	Added	Holders
Q1 2021	92,150	$7.51M	1.6%	–	–	Holders

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