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

SecurityWES / Western Midstream Partners, LP - Limited Partnership
InstitutionIng Groep Nv
Latest Disclosed Ownership1,587,500 shares
Latest Disclosed Value $ 65,357,375
Ing Groep Nv reports 121.83% increase in ownership of WES / Western Midstream Partners, LP - Limited Partnership

On May 11, 2026 - Ing Groep Nv filed a 13F-HR form disclosing ownership of 1,587,500 shares of Western Midstream Partners, LP - Limited Partnership (US:WES) valued at $65,357,375 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 715,653 shares of Western Midstream Partners, LP - Limited Partnership. This represents a change in shares of 121.83% during the quarter. The current value of the position is $69,897,625 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)
2026-05-11 2026-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 1,587,500 871,847 121.83 65,357 131.20 0.3997
2026-02-11 2025-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 715,653 715,653 28,268 0.1705
2025-08-06 2025-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 0 -156,000 -100.00 0 -100.00
2025-05-09 2025-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 156,000 -364,187 -70.01 6,390 -68.04 0.0443
2025-02-03 2024-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 520,187 -226,400 -30.32 19,991 -30.02 0.1347
2024-11-06 2024-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 746,587 334,187 81.03 28,564 74.34 0.1660
2024-08-13 2024-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 412,400 412,400 16,385 0.0972
2023-05-09 2023-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 0 -103,000 -100.00 0 -100.00
2023-02-13 2022-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 103,000 -122,000 -54.22 2,766 -51.16 0.0278
2022-11-14 2022-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 225,000 -80,000 -26.23 5,661 -23.65 0.0947
2022-08-08 2022-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 305,000 305,000 7,415 0.0857
2022-05-13 2022-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 0 -433,300 -100.00 0 -100.00
2022-02-11 2021-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 433,300 178,300 69.92 9,650 80.54 0.0863
2021-11-02 2021-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 255,000 44,000 20.85 5,345 18.25 0.0686
2021-08-13 2021-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 211,000 0 0.00 4,520 15.25 0.0720
2021-05-12 2021-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 211,000 211,000 3,922 0.0813
2019-11-08 2019-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 0 -585,675 -100.00 0 -100.00
2019-08-12 2019-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 585,675 -65,600 -10.07 18,021 -11.77 0.3140
2019-05-13 2019-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 651,275 585,675 892.80 20,424 1,022.81 0.4420
2019-02-13 2018-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 65,600 -143,700 -68.66 1,819 -70.97 0.0394
2018-11-06 2018-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 209,300 -10,100 -4.60 6,266 -20.12 0.1083
2018-08-10 2018-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 219,400 69,400 46.27 7,844 57.89 0.1500
2018-05-07 2018-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 150,000 -26,000 -14.77 4,968 -41.30 0.0899
2018-02-06 2017-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 176,000 -385,000 -68.63 8,464 -70.58 0.1412
2018-02-06 2017-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 150,000 -80,000 5,574 0.0930
2017-11-08 2017-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 561,000 511,000 1,022.00 28,768 1,237.42 0.5543
2017-11-08 2017-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 230,000 180,000 9,471 0.1825
2017-07-25 2017-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 50,000 -453,400 -90.07 2,151 -90.73 0.0412
2017-05-01 2017-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 503,400 503,400 0.00 23,207 0.4208
2017-02-06 2016-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 0 -164,434 -100.00 0 -100.00
2016-11-14 2016-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 164,434 -37,276 -18.48 8,973 -11.70 0.1082
2016-11-14 2016-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 386,000 236,000 15,938 0.1922
2016-07-27 2016-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 201,710 -177,703 -46.84 10,162 -38.07 0.1366
2016-07-27 2016-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 150,000 -83,132 5,738 0.0771
2016-05-12 2016-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 379,413 379,413 16,410 0.2046
2016-05-12 2016-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 233,132 233,132 8,318 0.1037
2016-02-12 2015-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 0 0 0 0.0000
2015-12-09 2015-09-30 13F/A-1 WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 0 -144,230 -100.00 0 -100.00
2015-08-10 2015-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 144,230 79,230 121.89 8,651 102.22 0.0469
2015-05-14 2015-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 65,000 0 0.00 4,278 -9.99 0.0215
2015-05-14 2015-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 141,230 76,230 8,491 0.0426
2015-02-17 2014-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 65,000 -30,400 -31.87 4,753 -33.52 0.0224
2014-11-14 2014-09-30 13F WESTERN GAS PARTNERS LP COM UNIT COM UNIT LP IN 958254104 95,400 95,400 7,149 0.0415
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.