Phillips 66
CH ˙ SWX ˙ US7185461040
SecurityCH:PSX / Phillips 66
InstitutionChelsea Counsel Co
Latest Disclosed Ownership2,285 shares
Latest Disclosed Value $ 416,282
Chelsea Counsel Co ownership in PSX / Phillips 66

On June 4, 2026 - Chelsea Counsel Co filed a 13F-HR/A form disclosing ownership of 2,285 shares of Phillips 66 (CH:PSX) valued at $416,282 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 24, 2026 disclosing 2,285 shares of Phillips 66. This represents a change in shares of 0.00% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-06-04 2026-03-31 13F/A-1 PHILLIPS 66 COM 718546104 2,285 0 0.00 416 41.50 0.1833
2026-04-23 2026-03-31 13F PHILLIPS 66 COM 718546104 2,285 0 295 0.1266
2026-02-24 2025-12-31 13F PHILLIPS 66 COM 718546104 2,285 0 0.00 295 -5.16 0.1266
2025-11-25 2025-09-30 13F PHILLIPS 66 COM 718546104 2,285 0 0.00 311 13.97 0.1380
2025-07-18 2025-06-30 13F PHILLIPS 66 COM 718546104 2,285 0 0.00 273 -3.55 0.1352
2025-05-22 2025-03-31 13F PHILLIPS 66 COM 718546104 2,285 -4,300 -65.30 282 -62.40 0.1534
2025-02-27 2024-12-31 13F PHILLIPS 66 COM 718546104 6,585 -2,000 -23.30 750 -33.51 0.3872
2024-11-21 2024-09-30 13F PHILLIPS 66 COM 718546104 8,585 0 0.00 1,128 -6.85 0.5561
2024-11-21 2024-06-30 13F PHILLIPS 66 COM 718546104 8,585 -250 -2.83 1,212 -16.08 0.6048
2024-06-17 2024-03-31 13F PHILLIPS 66 COM 718546104 8,835 2,000 29.26 1,443 58.57 0.8182
2024-02-21 2023-12-31 13F PHILLIPS 66 COM 718546104 6,835 -255 -3.60 910 6.93 0.4827
2023-11-22 2023-09-30 13F PHILLIPS 66 COM 718546104 7,090 0 0.00 852 25.89 0.4383
2023-11-22 2023-06-30 13F PHILLIPS 66 COM 718546104 7,090 505 7.67 676 1.35 0.3329
2023-05-19 2023-03-31 13F PHILLIPS 66 COM 718546104 6,585 -44 -0.66 668 -3.19 0.3242
2023-02-23 2022-12-31 13F PHILLIPS 66 COM 718546104 6,629 -175 -2.57 690 25.50 0.3446
2022-10-31 2022-09-30 13F PHILLIPS 66 COMMON 718546104 6,804 -14,186 -67.58 549 -79.13 0.3385
2022-08-01 2022-06-30 13F QUANTA SERVICES COMMON 718546104 20,990 14,186 208.50 2,631 347.45 1.3516
2022-05-24 2022-03-31 13F PHILLIPS 66 COMMON 718546104 6,804 0 0.00 588 19.27 0.2591
2022-05-23 2021-12-31 13F PHILLIPS 66 COMMON 718546104 6,804 6,804 493 0.2134
2014-09-04 2014-06-30 13F PHILLIPS 66 COMMON 718546104 0 -3,625 -100.00 0 -100.00
2014-07-08 2014-03-31 13F PHILLIPS 66 COMMON 718546104 3,625 3,625 279 0.0567
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.