Phillips 66
MX ˙ BMV ˙ US7185461040
SecurityMX:PSX / Phillips 66
InstitutionGladstone Institutional Advisory LLC
Latest Disclosed Ownership31,386 shares
Latest Disclosed Value $ 5,717,973
Gladstone Institutional Advisory LLC reports 7.20% decrease in ownership of PSX / Phillips 66

On May 14, 2026 - Gladstone Institutional Advisory LLC filed a 13F-HR form disclosing ownership of 31,386 shares of Phillips 66 (MX:PSX) valued at $5,717,973 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 33,821 shares of Phillips 66. This represents a change in shares of -7.20% 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)
2026-05-14 2026-03-31 13F PHILLIPS 66 COM 718546104 31,386 -2,435 -7.20 5,718 31.00 0.2119
2026-02-17 2025-12-31 13F PHILLIPS 66 COM 718546104 33,821 -1,557 -4.40 4,364 -9.31 0.1648
2025-10-22 2025-09-30 13F PHILLIPS 66 COM 718546104 35,378 -684 -1.90 4,812 11.85 0.1853
2025-08-12 2025-06-30 13F PHILLIPS 66 COM 718546104 36,062 196 0.55 4,302 -2.85 0.1777
2025-05-15 2025-03-31 13F PHILLIPS 66 COM 718546104 35,866 3,331 10.24 4,429 19.48 0.2064
2025-01-29 2024-12-31 13F PHILLIPS 66 COM 718546104 32,535 3,341 11.44 3,707 -3.41 0.1719
2024-10-28 2024-09-30 13F PHILLIPS 66 COM 718546104 29,194 3,809 15.00 3,838 7.09 0.1874
2024-08-02 2024-06-30 13F PHILLIPS 66 COM 718546104 25,385 3,583 16.43 3,584 0.62 0.1866
2024-05-14 2024-03-31 13F PHILLIPS 66 COM 718546104 21,802 -685 -3.05 3,561 18.98 0.1954
2024-02-09 2023-12-31 13F PHILLIPS 66 COM 718546104 22,487 2,576 12.94 2,994 25.13 0.1679
2023-11-13 2023-09-30 13F PHILLIPS 66 COM 718546104 19,911 283 1.44 2,392 27.78 0.1549
2023-08-10 2023-06-30 13F PHILLIPS 66 COM 718546104 19,628 1,458 8.02 1,872 1.63 0.1141
2023-05-12 2023-03-31 13F PHILLIPS 66 COM 718546104 18,170 -1,573 -7.97 1,842 -10.32 0.1193
2023-02-01 2022-12-31 13F PHILLIPS 66 COM 718546104 19,743 -7,341 -27.10 2,055 -6.04 0.1450
2023-01-30 2022-09-30 13F/A-1 PHILLIPS 66 COM 718546104 27,084 3,183 13.32 2,186 11.53 0.1709
2022-10-20 2022-09-30 13F PHILLIPS 66 COM 718546104 27,084 3,183 2,186 0.1709
2023-01-30 2022-06-30 13F/A-1 PHILLIPS 66 COM 718546104 23,901 -1,102 -4.41 1,960 -9.26 0.1550
2022-08-15 2022-06-30 13F PHILLIPS 66 COM 718546104 23,901 -1,102 1,960 0.1550
2023-01-30 2022-03-31 13F/A-1 PHILLIPS 66 COM 718546104 25,003 -9,221 -26.94 2,160 -12.90 0.1460
2022-05-04 2022-03-31 13F PHILLIPS 66 COM 718546104 25,003 -9,221 2,160 0.1460
2023-01-30 2021-12-31 13F/A-1 PHILLIPS 66 COM 718546104 34,224 -421 -1.22 2,480 2.23 0.1921
2022-02-11 2021-12-31 13F PHILLIPS 66 COM 718546104 34,224 -421 2,480 0.1921
2023-01-30 2021-09-30 13F/A-1 PHILLIPS 66 COM 718546104 34,645 5,883 20.45 2,426 -1.70 0.2370
2021-11-15 2021-09-30 13F PHILLIPS 66 COM 718546104 34,645 5,883 2,426 0.2370
2023-01-30 2021-06-30 13F/A-1 PHILLIPS 66 COM 718546104 28,762 3,624 14.42 2,468 20.39 0.2932
2021-08-13 2021-06-30 13F PHILLIPS 66 COM 718546104 28,762 3,624 2,468 0.2932
2023-01-30 2021-03-31 13F/A-1 PHILLIPS 66 COM 718546104 25,138 4,535 22.01 2,050 42.26 0.3186
2021-05-17 2021-03-31 13F PHILLIPS 66 COM 718546104 25,138 4,535 2,050 0.3186
2023-01-30 2020-12-31 13F/A-1 PHILLIPS 66 COM 718546104 20,603 -1,343 -6.12 1,441 26.63 0.2870
2021-02-16 2020-12-31 13F PHILLIPS 66 COM 718546104 20,603 -1,343 1,441 0.2870
2023-01-30 2020-09-30 13F/A-1 PHILLIPS 66 COM 718546104 21,946 -1,305 -5.61 1,138 -31.94 0.2718
2020-11-16 2020-09-30 13F PHILLIPS 66 COM 718546104 21,946 -1,305 1,138 0.2718
2020-08-17 2020-06-30 13F PHILLIPS 66 COM 718546104 23,251 -757 -3.15 1,672 29.81 0.4253
2020-05-14 2020-03-31 13F PHILLIPS 66 COM 718546104 24,008 -724 -2.93 1,288 -53.27 0.3323
2020-02-12 2019-12-31 13F PHILLIPS 66 COM 718546104 24,732 -309 -1.23 2,756 7.49 0.6755
2019-11-13 2019-09-30 13F PHILLIPS 66 COM 718546104 25,041 25,041 2,564 0.6521
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.