Western Midstream Partners, LP - Limited Partnership
US ˙ NYSE ˙ US9586691035

SecurityWES / Western Midstream Partners, LP - Limited Partnership
InstitutionFmr Llc
Latest Disclosed Ownership39,036 shares
Latest Disclosed Value $ 1,607,112
Fmr Llc reports 41.19% decrease in ownership of WES / Western Midstream Partners, LP - Limited Partnership

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 39,036 shares of Western Midstream Partners, LP - Limited Partnership (US:WES) valued at $1,607,112 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 66,379 shares of Western Midstream Partners, LP - Limited Partnership. This represents a change in shares of -41.19% during the quarter. The current value of the position is $1,760,133 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 WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 39,036 -27,343 -41.19 1,607 -38.69 0.0000
2026-02-17 2025-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 66,379 970 1.48 2,622 2.02 0.0001
2025-11-13 2025-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 65,409 890 1.38 2,570 2.92 0.0001
2025-08-14 2025-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 64,519 -7,720 -10.69 2,497 -15.62 0.0001
2025-05-12 2025-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 72,239 -9,250 -11.35 2,959 -5.53 0.0002
2025-02-13 2024-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 81,489 -1 -0.00 3,132 0.45 0.0002
2024-11-13 2024-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 81,490 1 0.00 3,118 -3.71 0.0002
2024-08-13 2024-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 81,489 -18,903 -18.83 3,238 -9.28 0.0002
2024-05-13 2024-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 100,392 18,413 22.46 3,569 48.79 0.0002
2024-02-13 2023-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 81,979 -14,610 -15.13 2,399 -8.82 0.0002
2023-11-13 2023-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 96,589 -10,880 -10.12 2,630 -7.72 0.0002
2023-08-11 2023-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 107,469 -150,511 -58.34 2,850 -58.10 0.0002
2023-08-11 2023-03-31 13F/A-1 WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 257,980 -50,409 -16.35 6,803 -17.85 0.0006
2023-05-11 2023-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 257,980 -50,409 6,803 0.0001
2023-02-13 2022-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 308,389 -39,870 -11.45 8,280 -5.50 0.0008
2022-11-10 2022-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 348,259 -44,331 -11.29 8,762 -8.19 0.0009
2022-08-12 2022-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 392,590 -56,670 -12.61 9,544 -15.76 0.0010
2022-05-13 2022-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 449,260 19,537 4.55 11,330 18.39 0.0009
2022-02-14 2021-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 429,723 51,000 13.47 9,570 20.56 0.0007
2022-02-14 2021-09-30 13F/A-1 WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 378,723 196,954 108.35 7,938 103.90 0.0006
2021-11-15 2021-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 378,723 196,954 7,938 0.0001
2021-08-13 2021-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 181,769 -159,170 -46.69 3,893 -38.58 0.0003
2021-05-14 2021-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 340,939 160,000 88.43 6,338 153.42 0.0005
2021-02-08 2020-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 180,939 -320,966 -63.95 2,501 -37.71 0.0002
2020-11-13 2020-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 501,905 20,500 4.26 4,015 -16.93 0.0004
2020-08-24 2020-06-30 13F/A-1 WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 481,405 -5,702 -1.17 4,833 206.27 0.0005
2020-08-13 2020-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 481,405 -5,702 4,833 118.7327
2020-05-14 2020-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 487,107 83,000 20.54 1,578 -80.17 0.0002
2020-02-07 2019-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 404,107 2 0.00 7,957 -20.89 0.0009
2019-11-13 2019-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 404,105 0 0.00 10,058 -19.11 0.0012
2019-08-13 2019-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 404,105 84,000 26.24 12,434 23.87 0.0015
2019-05-13 2019-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 320,105 145,604 83.44 10,038 36.22 0.0012
2019-02-13 2018-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 174,501 -87,000 -33.27 7,369 -35.48 0.0010
2019-02-13 2018-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 32,700 -16,200 907 0.0001
2018-11-09 2018-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 261,501 -2,299 -0.87 11,422 -10.52 0.0013
2018-11-09 2018-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 48,900 -2,800 1,464 0.0002
2018-08-10 2018-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 263,800 79,200 42.90 12,765 62.05 0.0015
2018-08-10 2018-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 51,700 15,500 1,848 0.0002
2018-05-14 2018-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 184,600 73,900 66.76 7,877 47.95 0.0009
2018-05-14 2018-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 36,200 14,500 1,199 0.0001
2018-02-12 2017-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 110,700 -551,159 -83.27 5,324 -86.69 0.0006
2018-02-12 2017-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 21,700 -640,159 806 0.0001
2017-05-11 2017-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 661,859 -131,600 -16.59 40,009 -14.19 0.0051
2017-02-10 2016-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 793,459 0 0.00 46,624 6.74 0.0062
2016-11-14 2016-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 793,459 9,282 1.18 43,680 10.52 0.0058
2016-08-11 2016-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 784,177 118 0.02 39,523 16.12 0.0054
2016-05-16 2016-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 784,059 427,559 119.93 34,036 100.87 0.0047
2016-02-12 2015-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 356,500 0 0.00 16,944 1.52 0.0023
2015-11-10 2015-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 356,500 94,200 35.91 16,691 0.42 0.0024
2015-08-25 2015-06-30 13F/A-1 WESTERN GAS PARTNERS COM UNIT LP IN 958254104 262,300 0 0.00 16,622 -3.76 0.0021
2015-08-13 2015-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 262,300 16,622
2015-05-14 2015-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 262,300 -200,660 -43.34 17,272 -48.93 0.0022
2015-02-17 2014-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 462,960 -82,700 -15.16 33,819 -17.36 0.0044
2014-11-14 2014-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 545,660 -6,400 -1.16 40,925 -3.07 0.0055
2014-08-14 2014-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 552,060 -151,200 -21.50 42,222 -9.30 0.0057
2014-05-15 2014-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 703,260 -33,471 -4.54 46,549 2.42 0.0065
2014-02-13 2013-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 736,731 309,985 72.64 45,449 77.12 0.0064
2014-02-13 2013-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 120,572 -308,000 4,764 0.0007
2013-11-14 2013-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 426,746 70,573 19.81 25,660 11.02 0.0039
2013-11-14 2013-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 428,572 -575,469 15,939 0.0024
2013-09-24 2013-06-30 13F/A-1 WESTERN GAS PARTNERS COM UNIT LP IN 958254104 356,173 356,173 23,112 0.0038
2013-09-24 2013-06-30 13F/A-1 WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,004,041 647,868 41,336 0.0068
2013-08-14 2013-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 356,173 23,112 0.0038
2013-08-14 2013-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,004,041 41,336
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.