Phillips 66
CH ˙ SWX ˙ US7185461040
SecurityCH:PSX / Phillips 66
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership72,161 shares
Latest Disclosed Value $ 13,146,291
Calamos Advisors LLC reports 4.37% increase in ownership of PSX / Phillips 66

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 72,161 shares of Phillips 66 (CH:PSX) valued at $13,146,291 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 69,137 shares of Phillips 66. This represents a change in shares of 4.37% 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)
2026-05-04 2026-03-31 13F PHILLIPS 66 COM 718546104 72,161 3,024 4.37 13,146 47.36 0.0464
2026-01-29 2025-12-31 13F PHILLIPS 66 COM 718546104 69,137 -2,807 -3.90 8,921 -8.83 0.0335
2025-10-20 2025-09-30 13F PHILLIPS 66 COM 718546104 71,944 0 0.00 9,786 14.02 0.0361
2025-08-08 2025-06-30 13F PHILLIPS 66 COM 718546104 71,944 0 0.00 8,583 -3.39 0.0338
2025-04-29 2025-03-31 13F PHILLIPS 66 COM 718546104 71,944 801 1.13 8,884 9.60 0.0387
2025-01-24 2024-12-31 13F PHILLIPS 66 COM 718546104 71,143 0 0.00 8,105 -13.32 0.0339
2024-11-07 2024-09-30 13F PHILLIPS 66 COM 718546104 71,143 -1,746 -2.40 9,352 -9.12 0.0404
2024-07-25 2024-06-30 13F PHILLIPS 66 COM 718546104 72,889 -2,661 -3.52 10,290 -16.62 0.0457
2024-05-08 2024-03-31 13F PHILLIPS 66 COM 718546104 75,550 -1,900 -2.45 12,340 19.68 0.0585
2024-01-31 2023-12-31 13F PHILLIPS 66 COM 718546104 77,450 -1,011 -1.29 10,312 9.38 0.0500
2023-10-26 2023-09-30 13F PHILLIPS 66 COM 718546104 78,461 0 0.00 9,427 25.98 0.0490
2023-07-28 2023-06-30 13F PHILLIPS 66 COM 718546104 78,461 0 0.00 7,484 -5.92 0.0370
2023-05-04 2023-03-31 13F PHILLIPS 66 COM 718546104 78,461 -9,808 -11.11 7,954 -13.42 0.0388
2023-01-26 2022-12-31 13F PHILLIPS 66 COM 718546104 88,269 -15,606 -15.02 9,187 9.56 0.0431
2022-10-24 2022-09-30 13F PHILLIPS 66 COM 718546104 103,875 0 0.00 8,385 -1.55 0.0384
2022-08-01 2022-06-30 13F PHILLIPS 66 COM 718546104 103,875 2,797 2.77 8,517 -2.46 0.0367
2022-05-03 2022-03-31 13F PHILLIPS 66 COM 718546104 101,078 13,474 15.38 8,732 37.56 0.0328
2022-02-01 2021-12-31 13F PHILLIPS 66 COM 718546104 87,604 3,391 4.03 6,348 7.65 0.0237
2021-10-26 2021-09-30 13F PHILLIPS 66 COM 718546104 84,213 7,430 9.68 5,897 -10.52 0.0258
2021-07-22 2021-06-30 13F PHILLIPS 66 COM 718546104 76,783 17,463 29.44 6,590 36.24 0.0301
2021-04-12 2021-03-31 13F PHILLIPS 66 COM 718546104 59,320 1,833 3.19 4,837 20.29 0.0264
2021-01-27 2020-12-31 13F PHILLIPS 66 COM 718546104 57,487 -2,490 -4.15 4,021 29.33 0.0233
2020-10-26 2020-09-30 13F PHILLIPS 66 COM 718546104 59,977 -5,264 -8.07 3,109 -33.72 0.0200
2020-07-27 2020-06-30 13F PHILLIPS 66 COM 718546104 65,241 -4,174 -6.01 4,691 25.97 0.0332
2020-04-28 2020-03-31 13F PHILLIPS 66 COM 718546104 69,415 -8,258 -10.63 3,724 -56.97 0.0292
2020-01-15 2019-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 77,673 -686 -0.88 8,654 7.85 0.0428
2019-10-21 2019-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 78,359 8,093 11.52 8,024 22.08 0.0437
2019-08-07 2019-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 70,266 1,000 1.44 6,573 -0.29 0.0365
2019-04-12 2019-03-31 13F PHILLIPS 66 COMMON STOCK 718546104 69,266 1,509 2.23 6,592 12.93 0.0411
2019-01-24 2018-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 67,757 9,836 16.98 5,837 -10.60 0.0385
2018-10-22 2018-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 57,921 12,850 28.51 6,529 28.98 0.0359
2018-07-17 2018-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 45,071 6,189 15.92 5,062 35.71 0.0309
2018-04-13 2018-03-31 13F PHILLIPS 66 COMMON STOCK 718546104 38,882 1,869 5.05 3,730 -0.37 0.0243
2018-02-13 2017-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 37,013 -763 -2.02 3,744 8.18 0.0191
2017-10-25 2017-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 37,776 1,347 3.70 3,461 14.91 0.0268
2017-08-09 2017-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 36,429 938 2.64 3,012 7.11 0.0223
2017-04-20 2017-03-31 13F PHILLIPS 66 COMMON STOCK 718546104 35,491 -3,349 -8.62 2,812 -16.21 0.0221
2017-02-06 2016-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 38,840 -48,393 -55.48 3,356 -52.24 0.0267
2016-11-14 2016-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 87,233 -21,406 -19.70 7,027 -18.47 0.0502
2016-07-26 2016-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 108,639 30 0.03 8,619 -8.35 0.0605
2016-04-25 2016-03-31 13F PHILLIPS 66 COMMON STOCK 718546104 108,609 5,048 4.87 9,404 11.01 0.0624
2016-02-05 2015-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 103,561 1,500 1.47 8,471 8.02 0.0538
2015-11-10 2015-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 102,061 3,326 3.37 7,842 -1.41 0.0540
2015-08-14 2015-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 98,735 -1,378 -1.38 7,954 1.08 0.0491
2015-05-13 2015-03-31 13F PHILLIPS 66 COMMON STOCK 718546104 100,113 47 0.05 7,869 9.67 0.0493
2015-02-13 2014-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 100,066 416 0.42 7,175 -11.45 0.0475
2014-11-14 2014-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 99,650 0 0.00 8,103 1.10 0.0541
2014-08-14 2014-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 99,650 28,900 40.85 8,015 47.01 0.0508
2014-05-16 2014-03-31 13F PHILLIPS 66 COMMON STOCK 718546104 70,750 0 0.00 5,452 -0.09 0.0348
2014-02-14 2013-12-31 13F PHILLIPS 66 COMMON STOCK 718546104 70,750 0 0.00 5,457 33.39 0.0347
2013-11-14 2013-09-30 13F PHILLIPS 66 COMMON STOCK 718546104 70,750 0 0.00 4,091 -1.85 0.0257
2013-08-12 2013-06-30 13F PHILLIPS 66 COMMON STOCK 718546104 70,750 70,750 4,168 0.0272
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.