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

SecurityPAA / Plains All American Pipeline, L.P. - Limited Partnership
InstitutionBlackRock, Inc.
Latest Disclosed Ownership220,018 shares
Latest Disclosed Value $ 4,913,002
BlackRock, Inc. reports 0.00% decrease in ownership of PAA / Plains All American Pipeline, L.P. - Limited Partnership

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 220,018 shares of Plains All American Pipeline, L.P. - Limited Partnership (US:PAA) valued at $4,913,002 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 220,022 shares of Plains All American Pipeline, L.P. - Limited Partnership. This represents a change in shares of -0.00% during the quarter. The current value of the position is $5,042,813 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 ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 220,018 -4 -0.00 4,913 24.35 0.0001
2026-02-12 2025-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 220,022 -176,996 -44.58 3,952 -41.67 0.0001
2025-11-12 2025-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 397,018 171,200 75.81 6,773 63.76 0.0001
2025-08-12 2025-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 225,818 0 0.00 4,137 -8.41 0.0001
2025-05-02 2025-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 225,818 5,800 2.64 4,516 20.20 0.0001
2025-02-07 2024-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 220,018 5,831 2.72 3,758 0.99 0.0001
2024-11-13 2024-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 214,187 -6,237 -2.83 3,720 -5.49 0.0001
2024-08-13 2024-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 220,424 0 0.00 3,937 1.71 0.0001
2024-05-10 2024-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 220,424 5 0.00 3,871 15.90 0.0001
2024-02-13 2023-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 220,419 10,047 4.78 3,339 3.63 0.0001
2023-11-13 2023-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 210,372 20,703 10.92 3,223 20.49 0.0001
2023-08-11 2023-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 189,669 -3,700 -1.91 2,674 10.91 0.0001
2023-05-12 2023-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 193,369 610 0.32 2,411 6.40 0.0001
2023-02-13 2022-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 192,759 -12,114 -5.91 2,267 5.10 0.0001
2022-11-14 2022-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 204,873 -5,704 -2.71 2,156 4.26 0.0001
2022-08-12 2022-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 210,577 7,492 3.69 2,068 -5.35 0.0001
2022-05-12 2022-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 203,085 -1,350 -0.66 2,185 14.46 0.0001
2022-02-10 2021-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 204,435 -3,003,690 -93.63 1,909 -94.15 0.0000
2021-11-09 2021-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,208,125 -218,784 -6.38 32,625 -16.20 0.0009
2021-08-11 2021-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,426,909 -119,679 -3.37 38,930 20.62 0.0011
2021-05-07 2021-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,546,588 3,388,209 2,139.30 32,275 2,371.29 0.0009
2021-02-05 2020-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 158,379 -8,186 -4.91 1,306 31.12 0.0000
2020-11-06 2020-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 166,565 32,289 24.05 996 -16.09 0.0000
2020-08-14 2020-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 134,276 -4,704,374 -97.22 1,187 -95.35 0.0000
2020-05-01 2020-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 4,838,650 630,187 14.97 25,548 -66.99 0.0012
2020-02-13 2019-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 4,208,463 638,416 17.88 77,394 4.48 0.0030
2019-11-08 2019-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,570,047 306,456 9.39 74,078 -6.78 0.0031
2019-08-22 2019-06-30 13F/A-1 PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,263,591 197,608 6.45 79,468 5.75 0.0034
2019-08-13 2019-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,263,591 197,608 79,468
2019-05-09 2019-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 3,065,983 131,771 4.49 75,148 27.80 0.0034
2019-02-08 2018-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,934,212 84,614 2.97 58,802 -17.49 0.0030
2018-11-09 2018-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,849,598 195,398 7.36 71,268 13.58 0.0031
2018-08-09 2018-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,654,200 -1,597,547 -37.57 62,746 -33.01 0.0029
2018-05-09 2018-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 4,251,747 1,769,523 71.29 93,666 82.82 0.0045
2018-02-09 2017-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,482,224 -129,158 -4.95 51,233 -7.41 0.0024
2017-11-14 2017-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,611,382 -316,990 -10.82 55,336 -28.07 0.0028
2017-08-10 2017-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,928,372 627,931 27.30 76,928 5.79 0.0041
2017-05-12 2017-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 2,300,441 2,300,401 5,751,002.50 72,717 7,271,600.00 0.0040
2017-02-10 2016-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 40 0 0.00 1 0.00 0.0000
2016-11-08 2016-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 40 0 0.00 1 0.00 0.0000
2016-08-10 2016-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 40 40 1 0.0000
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.