Plains GP Holdings, L.P. - Limited Partnership
US ˙ NasdaqGS ˙ US72651A2078

SecurityPAGP / Plains GP Holdings, L.P. - Limited Partnership
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership862,424 shares
Latest Disclosed Value $ 20,939,655
Mackenzie Financial Corp reports 1.40% decrease in ownership of PAGP / Plains GP Holdings, L.P. - Limited Partnership

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 862,424 shares of Plains GP Holdings, L.P. - Limited Partnership (US:PAGP) valued at $20,939,655 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 874,671 shares of Plains GP Holdings, L.P. - Limited Partnership. This represents a change in shares of -1.40% during the quarter. The current value of the position is $21,094,891 USD.

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)
2026-05-13 2026-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 862,424 -12,247 -1.40 20,940 25.92 0.0251
2026-02-18 2025-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 874,671 158,368 22.11 16,630 27.28 0.0197
2025-11-13 2025-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 716,303 2,456 0.34 13,065 -5.80 0.0158
2025-08-13 2025-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 713,847 -79,534 -10.02 13,870 -18.15 0.0180
2025-05-07 2025-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 793,381 -71,644 -8.28 16,947 6.59 0.0241
2025-05-02 2024-12-31 13F/A-2 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 865,025 -184,845 -17.61 15,899 -18.14 0.0217
2025-02-20 2024-12-31 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 865,025 -184,845 15,899 0.0207
2025-02-14 2024-12-31 13F Plains GP Holdings Ltd Part 72651A207 865,025 -184,845 15,269 0.0219
2024-11-13 2024-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,049,870 -754,843 -41.83 19,423 -42.82 0.0270
2024-08-14 2024-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,804,713 171,217 10.48 33,965 13.93 0.0505
2024-05-10 2024-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,633,496 64,480 4.11 29,811 19.12 0.0430
2024-01-30 2023-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,569,016 -384,427 -19.68 25,026 -16.27 0.0377
2023-10-25 2023-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,953,443 -167,632 -7.90 29,888 -5.62 0.0502
2023-08-03 2023-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 2,121,075 144,304 7.30 31,668 22.10 0.0480
2023-04-24 2023-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,976,771 -382,235 -16.20 25,935 -11.62 0.0401
2023-02-14 2022-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 2,359,006 566,942 31.64 29,346 50.10 0.0490
2022-10-07 2022-09-30 13F Plains GP Holdings Common Stock 72651A207 1,792,064 -69,082 -3.71 19,551 1.79 0.0336
2022-08-10 2022-06-30 13F PLAINS GP HLDGS L P PARTNR INT A 72651A207 1,861,146 -171,672 -8.45 19,207 -18.19 0.0308
2022-05-13 2022-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 2,032,818 -988,892 -32.73 23,479 -23.37 0.0315
2022-02-14 2021-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 3,021,710 -544,369 -15.27 30,640 -20.26 0.0413
2021-11-08 2021-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 3,566,079 -539,650 -13.14 38,425 -21.62 0.0545
2021-08-11 2021-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 4,105,729 -1,898,485 -31.62 49,022 -13.14 0.0682
2021-05-14 2021-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 6,004,214 1,426,006 31.15 56,440 45.89 0.0860
2021-02-10 2020-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INTA 72651A207 4,578,208 389,100 9.29 38,686 51.64 0.0835
2020-11-13 2020-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 4,189,108 394,600 10.40 25,512 -24.46 0.0634
2020-08-13 2020-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 3,794,508 1,507,500 65.92 33,771 163.22 0.0904
2020-05-14 2020-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 2,287,008 304,200 15.34 12,830 -65.85 0.0413
2020-02-13 2019-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,982,808 180,423 10.01 37,574 -1.81 0.0924
2019-11-14 2019-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,802,385 599,700 49.86 38,265 27.42 0.1006
2019-08-23 2019-06-30 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,202,685 -347,813 -22.43 30,031 -22.28 0.0775
2019-08-14 2019-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,202,685 -347,813 30,031
2019-05-15 2019-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 1,550,498 593,784 62.06 38,638 100.93 0.0932
2019-02-06 2018-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 956,714 426,700 80.51 19,230 47.91 0.0506
2018-11-15 2018-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 530,014 23,689 4.68 13,001 7.39 0.0316
2018-08-13 2018-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 506,325 -21,500 -4.07 12,106 5.45 0.0309
2018-05-14 2018-03-31 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 527,825 -244,800 -31.68 11,480 -32.31 0.0293
2018-05-14 2018-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 527,825 11,480
2018-02-13 2017-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 772,625 455,125 143.35 16,959 144.23 0.0409
2017-11-13 2017-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 317,500 267,500 535.00 6,944 430.89 0.0374
2017-08-14 2017-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 50,000 30,500 156.41 1,308 114.43 0.0073
2017-05-25 2017-03-31 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 19,500 19,500 610 0.0036
2017-05-12 2017-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 19,500 610
2017-02-14 2016-12-31 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 0 -14,000 -100.00 0 -100.00
2016-11-15 2016-09-30 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 14,000 14,000 0.00 181 0.0011
2016-05-12 2016-03-31 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 0 -16,010 -100.00 0 -100.00
2016-02-12 2015-12-31 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 16,010 -410 -2.50 151 -47.39 0.0009
2015-11-13 2015-09-30 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 16,420 -230 -1.38 287 -33.26 0.0017
2015-08-13 2015-06-30 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 16,650 1,550 10.26 430 0.47 0.0023
2015-05-13 2015-03-31 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 15,100 1,700 12.69 428 24.42 0.0023
2015-02-11 2014-12-31 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 13,400 1,700 14.53 344 -4.18 0.0018
2014-11-12 2014-09-30 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 11,700 0 0.00 359 -4.01 0.0018
2014-08-11 2014-06-30 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 11,700 0 0.00 374 14.37 0.0017
2014-05-14 2014-03-31 13F PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 11,700 11,700 327 0.0016
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.