The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionPartners Group Holding AG
Latest Disclosed Ownership635,064 shares
Latest Disclosed Value $ 46,219,958
Partners Group Holding AG reports 6.70% decrease in ownership of WMB / The Williams Companies, Inc.

On May 15, 2026 - Partners Group Holding AG filed a 13F-HR form disclosing ownership of 635,064 shares of The Williams Companies, Inc. (MX:WMB) valued at $46,219,958 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 680,676 shares of The Williams Companies, Inc.. This represents a change in shares of -6.70% during the quarter.

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 Williams Cos Common Stock 969457100 635,064 -45,612 -6.70 46,220 12.96 3.4204
2026-02-06 2025-12-31 13F Williams Cos Common Stock 969457100 680,676 25,847 3.95 40,915 -1.37 2.7628
2025-11-12 2025-09-30 13F Williams Cos Common Stock 969457100 654,829 -109,414 -14.32 41,483 -13.58 2.3033
2025-08-05 2025-06-30 13F Williams Cos Common Stock 969457100 764,243 -27,088 -3.42 48,002 1.51 2.2567
2025-05-13 2025-03-31 13F Williams Cos Common Stock 969457100 791,331 6,154 0.78 47,290 11.29 1.9791
2025-02-11 2024-12-31 13F Williams Cos Common Stock 969457100 785,177 0 0.00 42,494 18.55 1.5211
2024-11-13 2024-09-30 13F Williams Cos Common Stock 969457100 785,177 242,670 44.73 35,843 55.46 2.3084
2024-08-01 2024-06-30 13F Williams Cos Common Stock 969457100 542,507 68,304 14.40 23,057 24.77 1.7372
2024-05-10 2024-03-31 13F Williams Cos Common Stock 969457100 474,203 -42,759 -8.27 18,480 2.63 1.6777
2024-02-15 2023-12-31 13F/A-1 Williams Cos Common Stock 969457100 516,962 -47,428 -8.40 18,006 -5.31 1.5342
2024-02-13 2023-12-31 13F Williams Cos Common Stock 969457100 516,962 -47,428 18,006 2.1710
2023-11-13 2023-09-30 13F Williams Cos Common Stock 969457100 564,390 -71,396 -11.23 19,014 -8.34 1.7799
2023-08-10 2023-06-30 13F Williams Cos Common Stock 969457100 635,786 316 0.05 20,746 9.33 1.7235
2023-05-05 2023-03-31 13F Williams Cos Common Stock 969457100 635,470 242,136 61.56 18,975 46.64 1.5309
2023-02-14 2022-12-31 13F Williams Cos Common Stock 969457100 393,334 -3,832 -0.96 12,941 13.80 0.9892
2022-11-10 2022-09-30 13F Williams Cos Common Stock 969457100 397,166 0 0.00 11,371 -8.27 0.8026
2022-08-12 2022-06-30 13F Williams Cos Common Stock 969457100 397,166 -156,636 -28.28 12,396 -33.01 0.7294
2022-05-13 2022-03-31 13F Williams Cos Common Stock 969457100 553,802 -488 -0.09 18,503 28.19 0.9676
2022-02-15 2021-12-31 13F Williams Cos Common Stock 969457100 554,290 -11,630 -2.06 14,434 -1.68 0.6842
2021-11-16 2021-09-30 13F Williams Cos Common Stock 969457100 565,920 -55,401 -8.92 14,680 -11.01 1.0221
2021-08-06 2021-06-30 13F Williams Cos Common Stock 969457100 621,321 88,576 16.63 16,496 30.70 1.0122
2021-05-14 2021-03-31 13F Williams Cos Common Stock 969457100 532,745 -56,001 -9.51 12,621 6.92 1.0850
2021-02-12 2020-12-31 13F Williams Cos Common Stock 969457100 588,746 76,657 14.97 11,804 17.30 1.0990
2020-11-12 2020-09-30 13F Williams Cos Common Stock 969457100 512,089 -788,300 -60.62 10,063 -59.31 1.1015
2020-08-14 2020-06-30 13F Williams Cos Common Stock 969457100 1,300,389 -866,486 -39.99 24,733 -19.33 2.8046
2020-05-13 2020-03-31 13F Williams Cos Common Stock 969457100 2,166,875 613,655 39.51 30,661 -16.78 4.0482
2020-02-18 2019-12-31 13F Williams Cos Common Stock 969457100 1,553,220 400,020 34.69 36,842 32.78 4.0049
2019-11-14 2019-09-30 13F Williams Cos Common Stock 969457100 1,153,200 169,761 17.26 27,746 0.62 3.2234
2019-08-09 2019-06-30 13F Williams Cos Common Stock 969457100 983,439 271,981 38.23 27,576 34.96 3.3807
2019-05-15 2019-03-31 13F Williams Cos Common Stock 969457100 711,458 -112,126 -13.61 20,433 12.52 2.8025
2019-02-13 2018-12-31 13F Williams Cos Common Stock 969457100 823,584 146,622 21.66 18,160 -1.34 2.6071
2018-11-13 2018-09-30 13F Williams Cos Common Stock 969457100 676,962 228,762 51.04 18,407 51.49 2.1688
2018-08-14 2018-06-30 13F WMB US Equity Common Stock 969457100 448,200 7,500 1.70 12,151 10.91 1.4046
2018-05-11 2018-03-31 13F Williams Cos Common Stock 969457100 440,700 -47,500 -9.73 10,956 -26.40 1.2314
2018-02-13 2017-12-31 13F Williams Cos Common Stock 969457100 488,200 47,000 10.65 14,885 12.42 1.7623
2017-11-14 2017-09-30 13F Williams Cos Common Stock 969457100 441,200 153,100 53.14 13,240 51.77 1.4679
2017-08-14 2017-06-30 13F Williams Cos Common Stock 969457100 288,100 269,600 1,457.30 8,724 1,494.88 0.9301
2017-05-15 2017-03-31 13F Williams Cos Common Stock 969457100 18,500 3,000 19.35 547 13.25 0.0442
2017-02-15 2016-12-31 13F Williams Cos Common Stock 969457100 15,500 -7,000 -31.11 483 -30.10 0.0723
2016-11-14 2016-09-30 13F Williams Cos Common Stock 969457100 22,500 0 0.00 691 90.88 0.1694
2016-08-10 2016-06-30 13F Williams Cos Common Stock 969457100 22,500 0 0.00 362 0.00 0.0907
2016-05-11 2016-03-31 13F Williams Cos Common Stock 969457100 22,500 0 0.00 362 -37.37 0.0770
2016-02-12 2015-12-31 13F Williams Cos Common Stock 969457100 22,500 0 0.00 578 -30.28 0.1223
2015-10-29 2015-09-30 13F Williams Cos Common Stock 969457100 22,500 -7,000 -23.73 829 -51.03 0.2361
2015-08-13 2015-06-30 13F Williams Cos Common Stock 969457100 29,500 -18,500 -38.54 1,693 -30.27 0.4251
2015-05-14 2015-03-31 13F Williams Cos Common Stock 969457100 48,000 -329,891 -87.30 2,428 -85.70 0.6314
2015-02-17 2014-12-31 13F/A-1 Williams Cos Common Stock 969457100 377,891 156,500 70.69 16,982 38.58 3.8855
2015-02-10 2014-12-31 13F Williams Cos Common Stock 969457100 377,891 16,982
2014-11-10 2014-09-30 13F Williams Cos Common Stock 969457100 221,391 21,000 10.48 12,254 5.05 2.6764
2014-08-12 2014-06-30 13F Williams Cos Common Stock 969457100 200,391 -39,800 -16.57 11,665 19.68 2.8242
2014-05-13 2014-03-31 13F Williams Cos Common Stock 969457100 240,191 40,391 20.22 9,747 26.49 2.4068
2014-02-10 2013-12-31 13F Williams Cos Common Stock 969457100 199,800 68,600 52.29 7,706 61.55 1.9763
2013-11-08 2013-09-30 13F Williams Cos COM 969457100 131,200 131,200 4,770 1.3253
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.