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

SecurityPAA / Plains All American Pipeline, L.P. - Limited Partnership
InstitutionNorthern Trust Corp
Latest Disclosed Ownership205,460 shares
Latest Disclosed Value $ 4,587,922
Northern Trust Corp reports 0.44% increase in ownership of PAA / Plains All American Pipeline, L.P. - Limited Partnership

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 205,460 shares of Plains All American Pipeline, L.P. - Limited Partnership (US:PAA) valued at $4,587,922 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 204,559 shares of Plains All American Pipeline, L.P. - Limited Partnership. This represents a change in shares of 0.44% during the quarter. The current value of the position is $4,709,143 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)
2026-05-14 2026-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 205,460 901 0.44 4,588 24.88 0.0006
2026-02-17 2025-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 204,559 67 0.03 3,674 5.30 0.0005
2025-11-14 2025-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 204,492 -1,727 -0.84 3,489 -7.65 0.0004
2025-08-13 2025-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 206,219 -781,033 -79.11 3,778 -80.87 0.0005
2025-05-13 2025-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 987,252 466,991 89.76 19,745 122.20 0.0029
2025-02-14 2024-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 520,261 -239,566 -31.53 8,886 -32.67 0.0013
2024-11-13 2024-09-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 759,827 3,590 0.47 13,198 -2.28 0.0022
2024-08-14 2024-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 756,237 -15,259 -1.98 13,506 -0.30 0.0023
2024-05-14 2024-03-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 771,496 -3,131 -0.40 13,547 15.44 0.0023
2024-02-13 2023-12-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 774,627 1,268 0.16 11,736 -0.95 0.0021
2023-11-13 2023-09-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 773,359 5,383 0.70 11,848 9.41 0.0023
2023-08-11 2023-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 767,976 9,908 1.31 10,828 14.55 0.0021
2023-05-15 2023-03-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 758,068 18,796 2.54 9,453 8.74 0.0019
2023-02-13 2022-12-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 739,272 -861 -0.12 8,694 11.65 0.0018
2022-11-14 2022-09-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 740,133 484 0.07 7,786 7.20 0.0018
2022-08-12 2022-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 739,649 -48,191 -6.12 7,263 -14.33 0.0016
2022-05-13 2022-03-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 787,840 -73,603 -8.54 8,478 5.38 0.0015
2022-02-08 2021-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 861,443 -31,075 -3.48 8,045 -11.37 0.0013
2021-11-15 2021-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 892,518 467,310 109.90 9,077 87.93 0.0016
2021-08-13 2021-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 425,208 -96,661 -18.52 4,830 1.73 0.0009
2021-05-12 2021-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 521,869 5,834 1.13 4,748 11.67 0.0009
2021-02-11 2020-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 516,035 -35,572 -6.45 4,252 28.89 0.0008
2020-11-16 2020-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 551,607 1,543 0.28 3,299 -32.16 0.0007
2020-08-14 2020-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 550,064 37,432 7.30 4,863 79.65 0.0012
2020-05-14 2020-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 512,632 -32,654 -5.99 2,707 -73.01 0.0008
2020-02-14 2019-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 545,286 8,028 1.49 10,028 -10.05 0.0022
2019-11-13 2019-09-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 537,258 15,105 2.89 11,148 -12.32 0.0027
2019-08-13 2019-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 522,153 -93,059 -15.13 12,715 -15.68 0.0030
2019-05-13 2019-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 615,212 3,187 0.52 15,079 22.94 0.0037
2019-02-12 2018-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 612,025 -5,010 -0.81 12,265 -20.53 0.0034
2018-11-14 2018-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 617,035 -4,094 -0.66 15,433 5.10 0.0038
2018-09-18 2018-06-30 13F/A-1 PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 621,129 -7,225 -1.15 14,684 6.08 0.0037
2018-08-14 2018-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 668,426 40,072 15,802
2018-05-09 2018-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 628,354 25,982 4.31 13,843 11.34 0.0036
2018-02-14 2017-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 602,372 -26,902 -4.28 12,433 -6.76 0.0031
2017-11-13 2017-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 629,274 -34,667 -5.22 13,334 -23.55 0.0035
2017-08-11 2017-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 663,941 47,710 7.74 17,441 -10.46 0.0049
2017-05-12 2017-03-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 616,231 68,253 12.46 19,478 10.08 0.0056
2017-02-13 2016-12-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 547,978 -105,342 -16.12 17,694 -13.77 0.0054
2016-11-09 2016-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 653,320 56,581 9.48 20,520 25.08 0.0064
2016-08-12 2016-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 596,739 51,579 9.46 16,405 24.76 0.0053
2016-08-19 2016-03-31 13F/A-1 PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 545,160 112,058 25.87 13,149 31.42 0.0044
2016-05-13 2016-03-31 13F Plains All Amern Pip OTHER 726503105 545,160 11,431
2016-02-12 2015-12-31 13F Plains All Amern Pip OTHER 726503105 433,102 57,910 15.43 10,005 -12.22 0.0033
2015-11-12 2015-09-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 375,192 375,192 0.00 11,398 0.0038
2015-08-13 2015-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 0 -459,103 -100.00 0 -100.00
2015-05-14 2015-03-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 459,103 -243,780 -34.68 22,390 -37.93 0.0067
2015-02-12 2014-12-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 702,883 72,087 11.43 36,072 -2.85 0.0109
2014-11-13 2014-09-30 13F Plains All Amern Pip OTHER 726503105 630,796 -103,095 -14.05 37,129 -15.75 0.0117
2014-08-14 2014-06-30 13F PLAINS ALL AMERN PIPELINE L com 726503105 733,891 245,757 50.35 44,070 63.79 0.0137
2014-05-14 2014-03-31 13F PLAINS ALL AMERN PIPELINE L OTHER 726503105 488,134 49,378 11.25 26,906 18.45 0.0085
2014-02-21 2013-12-31 13F/A-1 PLAINS ALL AMERN PIPELINE L COM 726503105 438,756 -6,316 -1.42 22,715 -3.08 0.0073
2014-02-12 2013-12-31 13F PLAINS ALL AMERN PIPELINE L COM 726503105 438,756 22,715
2013-11-13 2013-09-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 445,072 -5,094 -1.13 23,437 -6.71 0.0083
2013-08-09 2013-06-30 13F PLAINS ALL AMERN PIPELINE L COM 726503105 450,166 450,166 25,124 0.0091
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.