Phillips 66
PSX · NYSE
Who owns PSX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 38.3% of PSX’s shares.
- Vanguard Capital Management, LLC6.5%
- State Street Investment Management (US)6.5%
- BlackRock Institutional Trust Company, N.A.5.9%
- Vanguard Portfolio Management, LLC5.5%
- Next 6 largest institutions13.8%
- All other shareholders61.7%
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Capital Management, LLC | 26.18M | 6.53% |
| State Street Investment Management (US) | 26.04M | 6.50% |
| BlackRock Institutional Trust Company, N.A. | 23.67M | 5.90% |
| Vanguard Portfolio Management, LLC | 22.21M | 5.54% |
| Elliott Management Corporation | 19.25M | 4.80% |
| Wells Fargo Advisors | 12.32M | 3.07% |
| Geode Capital Management, L.L.C. | 11.12M | 2.77% |
| AQR Capital Management, LLC | 4.49M | 1.12% |
| Norges Bank Investment Management (NBIM) | 4.16M | 1.04% |
| Charles Schwab Investment Management, Inc. | 4.09M | 1.02% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 12.77M | 3.18% |
| Vanguard 500 Index Fund | 10.52M | 2.63% |
| State Street Energy Select Sector SPDR ETF | 8.98M | 2.24% |
| Vanguard Mid-Cap Index Fund | 8.68M | 2.16% |
| iShares Core S&P 500 ETF | 5.35M | 1.33% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $30.30K (1 trade) and sold $7.47B (17 trades) of PSX on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Mandell Brian | Option exercise | 23.40K | — |
| Mandell Brian | Sale | 23.40K | $6.20M |
| Mandell Brian | Option exercise | 23.40K | $1.75M |
| Kluppel Ann M | Gift | 40 | — |
| Harbison Richard G | Option exercise | 23.80K | — |
| Harbison Richard G | Option exercise | 14.80K | — |
| Harbison Richard G | Option exercise | 13.50K | — |
| Harbison Richard G | Sale | 52.10K | $11.66M |
| Harbison Richard G | Option exercise | 23.80K | $2.39M |
| Harbison Richard G | Option exercise | 14.80K | $1.32M |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Alan ArmstrongSenator | Sale (Full) | $50K–$100K | Mar 27, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 5.50M
- Days to cover
- 1.42
- % of shares outstanding
- 1.37%
- Average daily volume
- 3.88M
- Change since last report
- −19.0%
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