Plains All American Pipeline, L.P. - Limited Partnership
US ˙ NasdaqGS ˙ US7265031051

SecurityPAA / Plains All American Pipeline, L.P. - Limited Partnership
InstitutionGreenline Partners, LLC
Latest Disclosed Ownership54,801 shares
Latest Disclosed Value $ 1,223,706
Greenline Partners, LLC reports 73.19% increase in ownership of PAA / Plains All American Pipeline, L.P. - Limited Partnership

On May 15, 2026 - Greenline Partners, LLC filed a 13F-HR form disclosing ownership of 54,801 shares of Plains All American Pipeline, L.P. - Limited Partnership (US:PAA) valued at $1,223,706 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 31,642 shares of Plains All American Pipeline, L.P. - Limited Partnership. This represents a change in shares of 73.19% during the quarter. The current value of the position is $1,256,039 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)
2026-05-15 2026-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 54,801 23,159 73.19 1,224 115.32 0.1315
2026-02-17 2025-12-31 13F 72201R 90 4 PIMCO UNIT LTD PARTN 726503105 31,642 4,134 15.03 568 21.11 0.0650
2025-11-17 2025-09-30 13F PLAINS ALL AMERN PIPELINE L P UNIT LTD PARTN COM 726503105 27,508 9,375 51.70 469 41.27 0.0570
2025-08-14 2025-06-30 13F PLAINS ALL AMERN PIPELINE L P UNIT LTD PARTN 726503105 18,133 6,854 60.77 332 47.56 0.0448
2025-05-15 2025-03-31 13F PLAINS ALL AMERN PIPELINE L P UNIT LTD PARTN 726503105 11,279 9,964 757.72 226 922.73 0.0326
2025-02-14 2024-12-31 13F PLAINS ALL AMERN PIPELINE L P UNIT LTD PARTN 726503105 1,315 1,315 22 0.0031
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.