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

SecurityPAA / Plains All American Pipeline, L.P. - Limited Partnership
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership30,050 shares
Latest Disclosed Value $ 671,025
Mercer Global Advisors Inc /adv reports 12.21% decrease in ownership of PAA / Plains All American Pipeline, L.P. - Limited Partnership

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 30,050 shares of Plains All American Pipeline, L.P. - Limited Partnership (US:PAA) valued at $671,016 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,229 shares of Plains All American Pipeline, L.P. - Limited Partnership. This represents a change in shares of -12.21% during the quarter. The current value of the position is $679,130 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.

Upgrade to unlock premium data and export to Excel .

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 30,050 -4,179 -12.21 671 9.28 0.0010
2026-02-17 2025-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 34,229 -1,635 -4.56 615 0.49 0.0009
2025-11-14 2025-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 35,864 132 0.37 612 -6.57 0.0010
2025-08-14 2025-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 35,732 1,710 5.03 655 -3.82 0.0013
2025-05-15 2025-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 34,022 2,536 8.05 680 26.63 0.0016
2025-02-14 2024-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 31,486 3,573 12.80 538 10.04 0.0013
2024-11-14 2024-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 27,913 12,896 85.88 489 82.09 0.0011
2024-08-12 2024-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 15,017 -9,839 -39.58 268 0.0007
2024-05-15 2024-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 24,856 -1,113 -4.29 0 0.0012
2024-02-15 2023-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 25,969 1,707 7.04 0 0.0012
2023-11-15 2023-09-30 13F/A-1 PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 24,262 -7,415 -23.41 0 0.0014
2023-11-14 2023-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 24,262 -7,415 0 0.0014
2023-08-14 2023-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 31,677 -7,411 -18.96 0 0.0018
2023-05-16 2023-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 39,088 -531 -1.34 0 0.0022
2023-02-09 2022-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 39,619 -539 -1.34 0 -100.00 0.0023
2022-11-15 2022-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 40,158 -6,354 -13.66 422 -7.66 0.0025
2022-08-10 2022-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 46,512 180 0.39 457 -8.42 0.0028
2022-05-10 2022-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 46,332 379 0.82 499 16.32 0.0029
2022-02-04 2021-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 45,953 -1,450 -3.06 429 -11.00 0.0026
2021-11-10 2021-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 47,403 -2,066 -4.18 482 -14.23 0.0034
2021-08-10 2021-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 49,469 -3,248 -6.16 562 17.08 0.0043
2021-08-10 2021-03-31 13F/A-1 PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 52,717 -430 -0.81 480 9.59 0.0044
2021-05-11 2021-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 52,717 -430 480 0.0046
2021-02-12 2020-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 53,147 -18,241 -25.55 438 2.58 0.0055
2020-12-10 2020-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 71,388 7,074 11.00 427 -24.96 0.0064
2020-08-10 2020-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 64,314 -4,223 -6.16 569 57.18 0.0103
2020-05-18 2020-03-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PA 726503105 68,537 -8,058 -10.52 362 -74.31 0.0080
2020-02-13 2019-12-31 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN COM 726503105 76,595 -55,722 -42.11 1,409 -48.67 0.0281
2019-11-12 2019-09-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN COM 726503105 132,317 -7,195 -5.16 2,745 -19.19 0.0646
2019-08-14 2019-06-30 13F PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN COM 726503105 139,512 -11,254 -7.46 3,397 -8.06 0.0900
2019-04-23 2019-03-31 13F/A-1 PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN COM 726503105 150,766 150,766 3,695 0.1329
2019-04-12 2019-03-31 13F PLAINS ALL AMERN PIPELIN COM 726503105 160,634 3,219 0.1715
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.