Phillips 66
Phillips 66 (PSX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · PSX · as of Mar 31, 2025
Ownership Breakdown
1,858
Institutional Holders
▲ 19 vs Q4
$37.89B
Total Inst. Value
▲ $2.98B vs Q4
400.94M
Shares Outstanding
freeFloat 99.77%
308.14M
13F Shares Held
▲ 1.12M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
PSX largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC petroleum refining | 40.39M | 9.87% | 9.87% | $4.99T | May 9, 2025 | ▼ 111.1K |
BLACKROCK, INC. petroleum refining | 29.91M | 7.31% | 7.31% | $3.69T | May 2, 2025 | ▼ 618.9K |
STATE STREET CORP petroleum refining | 26.05M | 6.37% | 6.37% | $3.22T | May 15, 2025 | ▼ 468.6K |
WELLS FARGO & COMPANY/MN petroleum refining | 15.95M | 3.90% | 3.90% | $1.97T | May 13, 2025 | ▼ 76.5K |
ELLIOTT INVESTMENT MANAGEMENT L.P. petroleum refining | 15.72M | 3.84% | 3.84% | $1.94T | May 15, 2025 | ▲ 14.95M |
HARRIS ASSOCIATES L P petroleum refining | 13.83M | 3.38% | 3.38% | $1.71T | May 15, 2025 | ▲ 2.15M |
BANK OF NEW YORK MELLON CORP petroleum refining | 8.86M | 2.16% | 2.16% | $1.09T | Apr 29, 2025 | ▼ 486.8K |
GEODE CAPITAL MANAGEMENT, LLC petroleum refining | 8.79M | 2.15% | 2.15% | $1.08T | May 13, 2025 | ▲ 264.1K |
MORGAN STANLEY petroleum refining | 6.75M | 1.65% | 1.65% | $832.92B | May 15, 2025 | ▲ 69.2K |
PRICE T ROWE ASSOCIATES INC /MD/ petroleum refining | 6.71M | 1.64% | 1.64% | $828.44B | May 14, 2025 | ▲ 682.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
24
Increased
+27.80M shares1
New Positions
first time holders25
Decreased
−17.74M shares0
Sold Out
fully exitedNet shares change (top 50)
+10.06M
+27.80M / −17.74M
Net new holders
+0
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
PSX insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
4
Buy transactions
6
Sell transactions
0.67
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Mitchell Kevin J Exec. VP and CFO | May 11, 2026 | Sale | 600 | $171.56 | $102.9K | 97.4K | Form 4 ↗ |
Mitchell Kevin J Exec. VP and CFO | May 8, 2026 | Sale | 29,400 | $170.00 | $5.00M | 97.4K | Form 4 ↗ |
Meyers Kevin Omar director | May 6, 2026 | Purchase | 175 | $173.13 | $30.3K | 16.8K | Form 4 ↗ |
Baldridge Don Executive Vice President | Apr 1, 2026 | Tax Withhold | 5,885 | $177.21 | $1.04M | 32.6K | Form 4 ↗ |
Mitchell Kevin J Exec. VP and CFO | Mar 30, 2026 | Sale | 15,629 | $190.07 | $2.97M | 97.4K | Form 4 ↗ |
Ungerleider Howard I director | Mar 16, 2026 | Award | 949 | $172.84 | $164.0K | 949 | Form 4 ↗ |
Meyers Kevin Omar director | Mar 17, 2026 | Purchase | 175 | $173.20 | $30.3K | 16.6K | Form 4 ↗ |
Meyers Kevin Omar director | Mar 16, 2026 | Award | 949 | $172.84 | $164.0K | 16.4K | Form 4 ↗ |
Davis Lisa Ann director | Mar 13, 2026 | Sale | 3,800 | $174.37 | $662.6K | 8.7K | Form 4 ↗ |
Mandell Brian Executive Vice President | Mar 12, 2026 | Sale | 42,800 | $169.53 | $7.26M | 61.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Phillips 66 (PSX) is primarily owned by institutional investors, who hold approximately 76.9% of total shares outstanding. Company insiders own approximately 0.23%, while retail and public investors account for the remaining 22.92%.
The largest institutional shareholder of Phillips 66 is VANGUARD GROUP INC, holding approximately 40.39 million shares — equal to 9.87% of outstanding shares — as of March 31, 2025.
A total of 1,858 institutional investors currently hold PSX stock, with a combined institutional value of approximately $37.89 billion as of the most recent 13F filing period.
Frequently asked questions
PSX ownershipPhillips 66 (PSX) is primarily owned by institutional investors, who hold approximately 76.9% of shares. The largest shareholder is VANGUARD GROUP INC with a 9.87% stake. Company insiders hold 0.23%. Data sourced from SEC Form 13F as of March 31, 2025.