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

SecurityPAGP / Plains GP Holdings, L.P. - Limited Partnership
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership90,500 shares
Latest Disclosed Value $ 2,197,793
Janus Henderson Group Plc ownership in PAGP / Plains GP Holdings, L.P. - Limited Partnership

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 90,500 shares of Plains GP Holdings, L.P. - Limited Partnership (US:PAGP) valued at $2,197,340 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 90,500 shares of Plains GP Holdings, L.P. - Limited Partnership. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,213,630 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)
2026-05-18 2026-03-31 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 2,198 26.77 0.0004
2026-05-15 2026-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 2,198 26.77 0.0004
2026-02-17 2025-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 1,733 4.97 0.0008
2025-11-14 2025-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 1,651 -6.03 0.0008
2025-08-14 2025-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 1,758 -9.76 0.0009
2025-05-15 2025-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 1,947 17.08 0.0011
2025-02-14 2024-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 1,664 -0.72 0.0008
2024-11-14 2024-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 0 0.00 1,675 -1.64 0.0009
2024-08-14 2024-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 90,500 -990 -1.08 1,704 2.04 0.0009
2024-05-15 2024-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 91,490 91,490 1,669 0.0009
2020-05-14 2020-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 0 -296,173 -100.00 0 -100.00
2020-02-18 2019-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 296,173 61,700 26.31 5,612 12.74 0.0029
2019-11-14 2019-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 234,473 48,041 25.77 4,978 6.94 0.0027
2019-07-31 2019-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 186,432 -139,995 -42.89 4,655 -42.78 0.0025
2019-04-30 2019-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 326,427 -422,367 -56.41 8,135 -45.95 0.0045
2019-02-06 2018-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 748,794 327,519 77.74 15,051 45.65 0.0096
2018-11-09 2018-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 421,275 282,423 203.40 10,334 211.27 0.0055
2018-08-10 2018-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 138,852 -25,700 -15.62 3,320 -7.24 0.0019
2018-05-14 2018-03-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 164,552 77,100 88.16 3,579 86.41 0.0021
2018-03-12 2017-12-31 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 87,452 -31,833 -26.69 1,920 -26.41 0.0012
2018-02-09 2017-12-31 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 87,452 -31,833 1,920
2017-11-14 2017-09-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 119,285 15,889 15.37 2,609 -3.55 0.0017
2017-08-17 2017-06-30 13F/A-1 PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 103,396 103,396 2,705 0.0018
2017-08-14 2017-06-30 13F PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 103,396 2,705
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.