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

SecurityWES / Western Midstream Partners, LP - Limited Partnership
InstitutionCitigroup Inc
Latest Disclosed Ownership162,617 shares
Latest Disclosed Value $ 6,694,942
Citigroup Inc ownership in WES / Western Midstream Partners, LP - Limited Partnership

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 162,617 shares of Western Midstream Partners, LP - Limited Partnership (US:WES) valued at $6,694,942 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 127,164 shares of Western Midstream Partners, LP - Limited Partnership. This represents a change in shares of 27.88% during the quarter. The current value of the position is $7,332,401 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (WES) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

WES / Western Midstream Partners, LP - Limited Partnership Historical Put/Call Ratio
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 162,617 35,453 27.88 6,695 33.29 0.0014
2026-02-13 2025-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 127,164 73,162 135.48 5,023 136.78 0.0022
2025-11-10 2025-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 54,002 -28,089 -34.22 2,122 -33.22 0.0009
2025-08-11 2025-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 82,091 -36,751 -30.92 3,177 -34.74 0.0016
2025-05-12 2025-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 118,842 -46,182 -27.99 4,868 -23.25 0.0025
2025-02-12 2024-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 165,024 -241,563 -59.41 6,342 -59.24 0.0038
2024-11-12 2024-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 406,587 310,260 322.09 15,556 306.48 0.0090
2024-08-12 2024-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 96,327 -1,788 -1.82 3,827 9.75 0.0025
2024-05-10 2024-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 98,115 69,049 237.56 3,488 310.24 0.0023
2024-02-09 2023-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 29,066 1,467 5.32 850 13.18 0.0006
2023-12-06 2023-09-30 13F/A-1 WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 27,599 -61,290 -68.95 752 -68.14 0.0006
2023-11-09 2023-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 27,599 -61,290 752 0.0002
2023-08-10 2023-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 88,889 33,728 61.14 2,357 62.10 0.0015
2023-05-11 2023-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 55,161 -514,405 -90.32 1,455 -90.49 0.0010
2023-02-09 2022-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 569,566 334,753 142.56 15,293 158.84 0.0122
2022-11-10 2022-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 234,813 -256,869 -52.24 5,908 -50.57 0.0042
2022-08-10 2022-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 491,682 -1,243,144 -71.66 11,952 -72.68 0.0089
2022-05-12 2022-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 1,734,826 1,034,296 147.64 43,752 180.46 0.0266
2022-02-10 2021-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 700,530 -99,395 -12.43 15,600 -6.96 0.0084
2021-11-10 2021-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 799,925 21,632 2.78 16,767 0.58 0.0099
2021-08-10 2021-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 778,293 206,246 36.05 16,671 56.76 0.0100
2021-05-13 2021-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 572,047 -1,749,538 -75.36 10,635 -66.85 0.0069
2021-02-11 2020-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 2,321,585 891,972 62.39 32,085 180.56 0.0189
2020-11-12 2020-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 1,429,613 -1,619,412 -53.11 11,436 -62.64 0.0075
2020-08-12 2020-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 3,049,025 161,659 5.60 30,612 227.23 0.0239
2020-05-12 2020-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 2,887,366 2,208,693 325.44 9,355 -29.99 0.0085
2020-02-12 2019-12-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 678,673 -871,734 -56.23 13,363 -65.37 0.0097
2019-11-08 2019-09-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 1,550,407 544,678 54.16 38,589 24.70 0.0306
2019-08-12 2019-06-30 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 1,005,729 -843,975 -45.63 30,946 -46.65 0.0250
2019-05-13 2019-03-31 13F WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 1,849,704 1,271,630 219.98 58,006 137.60 0.0559
2019-02-12 2018-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 578,074 -148,543 -20.44 24,413 -23.08 0.0247
2019-02-12 2018-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 2,730,229 441,252 75,709 0.0767
2018-11-13 2018-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 726,617 -328,465 -31.13 31,738 -37.84 0.0283
2018-11-13 2018-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 2,288,977 280,306 68,532 0.0611
2018-08-10 2018-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 1,055,082 -545,049 -34.06 51,056 -25.22 0.0469
2018-08-10 2018-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 2,008,671 696,804 71,810 0.0660
2018-05-11 2018-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 1,600,131 1,233,956 336.99 68,279 287.75 0.0562
2018-05-11 2018-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,311,867 -93,130 43,449 0.0358
2018-02-12 2017-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 366,175 -119,842 -24.66 17,609 -29.35 0.0141
2018-02-12 2017-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,404,997 -24,592 52,210 0.0419
2017-11-13 2017-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 486,017 -9,488 -1.91 24,923 -10.08 0.0204
2017-11-13 2017-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,429,589 113,675 58,870 0.0482
2017-08-11 2017-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 495,505 287,814 138.58 27,718 120.77 0.0250
2017-08-11 2017-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,315,914 -36,524 56,610 0.0511
2017-05-12 2017-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 207,691 -107,541 -34.11 12,555 -32.22 0.0112
2017-05-12 2017-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,352,438 -46,023 62,348 0.0556
2017-02-10 2016-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 315,232 -83,767 -20.99 18,523 -15.67 0.0167
2017-02-10 2016-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,398,461 -19,654 59,224 0.0534
2016-11-10 2016-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 398,999 134,103 50.62 21,965 64.53 0.0205
2016-11-10 2016-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,418,115 -16,135 60,256 0.0563
2016-08-12 2016-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 264,896 27,353 11.51 13,350 29.46 0.0136
2016-08-12 2016-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 1,434,250 849,977 54,860 0.0560
2016-05-13 2016-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 237,543 8,079 3.52 10,312 -5.45 0.0116
2016-05-13 2016-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 584,273 345,275 20,824 0.0234
2016-02-12 2015-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 229,464 -117,730 -33.91 10,906 -32.91 0.0109
2016-02-12 2015-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 238,998 -92,941 8,673 0.0086
2015-11-13 2015-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 347,194 -54,609 -13.59 16,255 -36.16 0.0152
2015-11-13 2015-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 331,939 57,754 13,089 0.0122
2015-08-13 2015-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 401,803 -16,540 -3.95 25,462 -7.57 0.0226
2015-08-13 2015-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 274,185 227,731 16,451 0.0146
2015-05-14 2015-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 418,343 -300,672 -41.82 27,547 -47.55 0.0266
2015-05-14 2015-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 46,454 -6,181 2,787 0.0027
2015-02-17 2014-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 719,015 194,584 37.10 52,524 33.54 0.0469
2015-02-17 2014-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 52,635 -379,073 3,170 0.0028
2014-11-14 2014-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 524,431 199,734 61.51 39,332 58.39 0.0344
2014-11-14 2014-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 431,708 431,408 26,308 0.0230
2014-08-14 2014-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 324,697 -502,113 -60.73 24,833 -54.62 0.0238
2014-08-14 2014-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 300 -1,938 19 0.0000
2014-05-15 2014-03-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 826,810 268,066 47.98 54,726 58.76 0.0559
2014-05-15 2014-03-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 2,238 -38,162 110 0.0001
2014-02-14 2013-12-31 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 558,744 236,760 73.53 34,470 78.04 0.0312
2014-02-14 2013-12-31 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 40,400 -75,000 1,596 0.0014
2013-11-14 2013-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 321,984 148,212 85.29 19,361 71.70 0.0181
2013-11-14 2013-09-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 115,400 85,400 4,292 0.0040
2013-08-14 2013-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN 958254104 173,772 173,772 11,276 0.0111
2013-08-14 2013-06-30 13F WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 30,000 -143,772 1,235 0.0012
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2017-11-13 2017-09-30 13F WESTERN GAS PARTNERS COM UNIT LP IN Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-08-11 2017-06-30 13F WESTERN GAS PARTNERS COM UNIT LP IN Call 500 28 n/a n/a n/a
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.