Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
2,071 institutional managers reported holding PSX for the quarter ended Mar 31, 2026. Together they hold about 77% of shares outstanding; the top 10 hold 45%. 333 opened new positions; 138 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 52.40M | 12.99% | $9.55B | added +0.8% | ≤2013 |
| BlackRock | 32.02M | 7.94% | $5.84B | added +3.6% | ≤2013 |
| State Street | 25.77M | 6.39% | $4.70B | added +9.3% | ≤2013 |
| Elliott Investment Management (focused) | 19.25M | 4.77% | $3.51B | unchanged | 2023 Q2 |
| Wells Fargo & COMPANY/MN | 13.79M | 3.42% | $2.51B | trimmed -2.6% | ≤2013 |
| Geode Capital | 10.66M | 2.64% | $1.94B | added +2.3% | ≤2013 |
| Harris Associates (Oakmark) | 9.13M | 2.27% | $1.66B | trimmed -34.7% | 2023 Q3 |
| Morgan Stanley | 7.10M | 1.76% | $1.29B | added +4.5% | ≤2013 |
| BNY Mellon | 6.88M | 1.71% | $1.25B | trimmed -3.2% | ≤2013 |
| Goldman Sachs | 5.72M | 1.42% | $1.04B | added +157.5% | ≤2013 |
| UBS | 5.47M | 1.36% | $997.0M | unchanged | ≤2013 |
| T. Rowe Price | 4.78M | 1.18% | $870.3M | added +13.1% | ≤2013 |
| FMR (Fidelity) | 4.33M | 1.07% | $788.5M | trimmed -3.1% | ≤2013 |
| Charles Schwab Investment Management | 3.97M | 0.98% | $723.4M | added +0.6% | ≤2013 |
| Invesco | 3.96M | 0.98% | $721.7M | added +2.3% | ≤2013 |
| Northern Trust | 3.68M | 0.91% | $669.9M | trimmed -1.1% | ≤2013 |
| Amundi | 3.67M | 0.91% | $668.3M | added +62% | ≤2013 |
| AQR Capital | 3.38M | 0.84% | $616.5M | added +3.7% | ≤2013 |
| Bank OF America CORP /DE/ | 2.97M | 0.74% | $541.4M | added +1.2% | ≤2013 |
| Dimensional Fund Advisors | 2.84M | 0.70% | $517.4M | added +1.5% | ≤2013 |
| Legal & General Group PLC | 1.99M | 0.49% | $363.0M | trimmed -3.1% | ≤2013 |
| Nuveen | 1.71M | 0.42% | $310.8M | added +26.7% | ≤2013 |
| Boston Partners | 1.65M | 0.41% | $301.0M | added +19.3% | ≤2013 |
| Royal Bank OF Canada | 1.49M | 0.37% | $271.5M | trimmed -6.8% | ≤2013 |
| Neuberger Berman Group LLC | 1.42M | 0.35% | $259.5M | trimmed -2.1% | ≤2013 |
| Raymond James Financial INC | 1.39M | 0.34% | $253.7M | trimmed -7.7% | ≤2013 |
| Deutsche Bank AG\ | 1.32M | 0.33% | $240.8M | added +25.9% | ≤2013 |
| Mariner, LLC | 1.22M | 0.30% | $222.7M | added +3.6% | ≤2013 |
| LOS Angeles Capital Management LLC | 1.21M | 0.30% | $219.7M | added +53% | 2020 Q4 |
| Millennium Management | 1.19M | 0.30% | $217.6M | added +393.6% | ≤2013 |
| Swiss National Bank | 1.18M | 0.29% | $215.5M | added +6.8% | ≤2013 |
| Mitsubishi UFJ Asset Management CO., LTD. | 1.09M | 0.27% | $197.9M | added +5.5% | ≤2013 |
| Jacobs Levy Equity Management, INC | 1.03M | 0.26% | $187.6M | trimmed -15.1% | 2021 Q2 |
| Envestnet Asset Management INC | 1.03M | 0.26% | $187.2M | trimmed -21.6% | ≤2013 |
| CPP Investment Board | 999.3k | 0.25% | $182.1M | added +61.4% | ≤2013 |
| Barrow Hanley Mewhinney & Strauss LLC | 981.4k | 0.24% | $178.8M | trimmed -3.5% | ≤2013 |
| Wellington Management | 904.8k | 0.22% | $164.9M | added +124.2% | ≤2013 |
| LPL Financial LLC | 887.8k | 0.22% | $161.8M | trimmed -0.7% | ≤2013 |
| Hsbc Holdings PLC | 883.9k | 0.22% | $161.1M | added +2.7% | ≤2013 |
| Sumitomo Mitsui Trust Group, INC. | 862.1k | 0.21% | $157.1M | trimmed -5% | ≤2013 |
| Arrowstreet Capital | 796.5k | 0.20% | $145.1M | opened | 2025 Q3 |
| LSV Asset Management | 790.6k | 0.20% | $144.1M | trimmed -5.6% | ≤2013 |
| Adage Capital Partners GP, L.l.c. | 781.0k | 0.19% | $142.3M | added +5.7% | 2016 Q2 |
| Marshall Wace | 772.0k | 0.19% | $140.7M | added +2220.6% | 2021 Q1 |
| Barclays PLC | 759.7k | 0.19% | $138.4M | added +26.9% | ≤2013 |
| PNC Financial Services Group, INC. | 754.3k | 0.19% | $137.5M | unchanged | ≤2013 |
| Rhumbline Advisers | 749.2k | 0.19% | $136.5M | trimmed -2.2% | ≤2013 |
| Bank OF Montreal /CAN/ | 726.5k | 0.18% | $132.4M | added +0.9% | ≤2013 |
| BNP Paribas Financial Markets | 708.8k | 0.18% | $129.2M | trimmed -9.5% | ≤2013 |
| Corient Private Wealth LLC | 706.7k | 0.17% | $128.8M | trimmed -2.5% | 2022 Q4 |
Largest 50 of 2,071 shown; the full ranked, searchable register is at boothcheck.com/holders/PSX. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.