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Mattern Capital Management’s Phillips 66 PSX Stock Holding History

Mattern Capital Management’s Portfolio PSX Stock Details PSX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$16.1M Sell
88,599
-1,850
-2% -$290K 1.93% 2
2025
Q4 		$11.7M Sell
90,449
-2,638
-3% -$355K 1.38% 11
2025
Q3 		$12.7M Sell
93,087
-1,111
-1% -$142K 1.49% 9
2025
Q2 		$11.2M Buy
94,198
+2,012
+2% +$225K 1.35% 11
2025
Q1 		$11.4M Sell
92,186
-2,190
-2% -$270K 1.45% 10
2024
Q4 		$10.8M Buy
94,376
+5,510
+6% +$701K 1.4% 12
2024
Q3 		$11.7M Sell
88,866
-378
-0.4% -$51K 1.47% 10
2024
Q2 		$12.6M Sell
89,244
-1,024
-1% -$152K 1.74% 4
2024
Q1 		$14.7M Sell
90,268
-8,960
-9% -$1.29M 2% 3
2023
Q4 		$13.2M Buy
99,228
+397
+0.4% +$47.5K 1.92% 3
2023
Q3 		$11.9M Buy
98,831
+6,961
+8% +$781K 1.92% 3
2023
Q2 		$8.76M Buy
91,870
+4,006
+5% +$389K 1.42% 6
2023
Q1 		$8.91M Buy
87,864
+5,250
+6% +$534K 1.57% 5
2022
Q4 		$8.6M Sell
82,614
-6,806
-8% -$696K 1.59% 4
2022
Q3 		$7.22M Sell
89,420
-541
-0.6% -$46.1K 1.5% 5
2022
Q2 		$7.38M Sell
89,961
-5,889
-6% -$545K 1.46% 6
2022
Q1 		$8.28M Sell
95,850
-583
-0.6% -$49.1K 1.48% 9
2021
Q4 		$6.99M Buy
96,433
+351
+0.4% +$26.5K 1.22% 34
2021
Q3 		$6.73M Buy
96,082
+2,874
+3% +$208K 1.33% 14
2021
Q2 		$8M Buy
93,208
+1,058
+1% +$89.3K 1.58% 4
2021
Q1 		$7.51M Sell
92,150
-3,291
-3% -$258K 1.63% 4
2020
Q4 		$6.67M Buy
95,441
+579
+0.6% +$34K 1.58% 5
2020
Q3 		$4.92M Buy
94,862
+16,278
+21% +$993K 1.29% 23
2020
Q2 		$5.65M Buy
78,584
+23,510
+43% +$1.66M 1.64% 4
2020
Q1 		$2.96M Buy
55,074
+12,450
+29% +$1.01M 1.01% 66
2019
Q4 		$4.75M Buy
+42,624
New +$4.79M 1.31% 15

Other funds holding PSX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
EIM
Elliott Investment Management West Palm Beach, Florida $20.1B AUM 60.76% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Harris Associates
Harris Associates Chicago, Illinois $75B AUM 11.27% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Mattern Capital Management's PSX Position: Q1 2026 in Review

Mattern Capital Management reduced its Phillips 66 (PSX) stake by 2% in Q1 2026, selling an estimated $290K and leaving 88,599 shares worth $16.1M. The position accounts for 1.93% of the portfolio, ranked #2.

Mattern Capital Management first reported a position in PSX in Q4 2019 and has held it in 26 quarters since. 2,117 funds tracked by Wall St. Rank hold PSX as of Q1 2026.

  • Mattern Capital Management held 88,599 shares of Phillips 66 worth $16.1M as of Q1 2026.
  • Mattern Capital Management sold 1,850 Phillips 66 shares in Q1 2026, an estimated $290K.
  • Phillips 66 made up 1.93% of Mattern Capital Management's portfolio in Q1 2026, its #2 holding.
  • Mattern Capital Management first reported a position in Phillips 66 in Q4 2019 and has held it in 26 quarters since.
  • 2,117 funds tracked by Wall St. Rank held Phillips 66 as of Q1 2026.

Based on Mattern Capital Management's 13F filing for Q1 2026, filed 4 May 2026.