The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership206,247 shares
Latest Disclosed Value $ 15,010,655
Mercer Global Advisors Inc /adv reports 3.12% decrease in ownership of WMB / The Williams Companies, Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 206,247 shares of The Williams Companies, Inc. (MX:WMB) valued at $15,010,655 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 212,897 shares of The Williams Companies, Inc.. This represents a change in shares of -3.12% 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 COM 969457100 206,247 -6,650 -3.12 15,011 17.29 0.0222
2026-02-17 2025-12-31 13F WILLIAMS COS COM 969457100 212,897 5,791 2.80 12,797 -2.46 0.0195
2025-11-14 2025-09-30 13F WILLIAMS COS COM 969457100 207,106 37,996 22.47 13,120 23.53 0.0219
2025-08-14 2025-06-30 13F WILLIAMS COS COM 969457100 169,110 3,671 2.22 10,622 7.43 0.0216
2025-05-15 2025-03-31 13F WILLIAMS COS COM 969457100 165,439 -21,265 -11.39 9,887 -2.16 0.0227
2025-02-14 2024-12-31 13F WILLIAMS COS COM 969457100 186,704 -25,680 -12.09 10,104 2.66 0.0247
2024-11-14 2024-09-30 13F WILLIAMS COS COM 969457100 212,384 96,934 83.96 9,843 100.61 0.0230
2024-08-12 2024-06-30 13F WILLIAMS COS COM 969457100 115,450 6,413 5.88 4,907 122,550.00 0.0134
2024-05-15 2024-03-31 13F WILLIAMS COS COM 969457100 109,037 6,507 6.35 4 33.33 0.0121
2024-02-15 2023-12-31 13F WILLIAMS COS COM 969457100 102,530 -5,324 -4.94 4 0.00 0.0107
2023-11-15 2023-09-30 13F/A-1 WILLIAMS COS COM 969457100 107,854 -33,562 -23.73 4 -25.00 0.0138
2023-11-14 2023-09-30 13F WILLIAMS COS COM 969457100 107,854 -33,562 4 0.0138
2023-08-14 2023-06-30 13F WILLIAMS COS COM 969457100 141,416 30,533 27.54 5 33.33 0.0183
2023-05-16 2023-03-31 13F WILLIAMS COS COM 969457100 110,883 2,405 2.22 3 0.00 0.0150
2023-02-09 2022-12-31 13F WILLIAMS COS COM 969457100 108,478 2,764 2.61 4 -99.90 0.0179
2022-11-15 2022-09-30 13F WILLIAMS COS COM 969457100 105,714 17,896 20.38 3,027 10.43 0.0180
2022-08-10 2022-06-30 13F WILLIAMS COS COM 969457100 87,818 6,146 7.53 2,741 0.44 0.0168
2022-05-10 2022-03-31 13F WILLIAMS COS COM 969457100 81,672 24,817 43.65 2,729 84.27 0.0161
2022-02-04 2021-12-31 13F WILLIAMS COS COM 969457100 56,855 14,051 32.83 1,481 33.42 0.0091
2021-11-10 2021-09-30 13F WILLIAMS COS COM 969457100 42,804 1,987 4.87 1,110 2.40 0.0078
2021-08-10 2021-06-30 13F WILLIAMS COS COM 969457100 40,817 5,981 17.17 1,084 31.39 0.0083
2021-08-10 2021-03-31 13F/A-1 WILLIAMS COS COM 969457100 34,836 16,581 90.83 825 125.41 0.0075
2021-05-11 2021-03-31 13F WILLIAMS COS COM 969457100 34,836 16,581 825 0.0079
2021-02-12 2020-12-31 13F WILLIAMS COS COM 969457100 18,255 -2,654 -12.69 366 -10.95 0.0046
2020-12-10 2020-09-30 13F WILLIAMS COS COM 969457100 20,909 349 1.70 411 5.12 0.0062
2020-08-10 2020-06-30 13F WILLIAMS COS COM 969457100 20,560 -1,104 -5.10 391 27.36 0.0071
2020-05-18 2020-03-31 13F WILLIAMS COS COM 969457100 21,664 -9,656 -30.83 307 -58.68 0.0068
2020-02-13 2019-12-31 13F WILLIAMS COS INC DEL COM COM 969457100 31,320 4,520 16.87 743 15.37 0.0148
2019-11-12 2019-09-30 13F WILLIAMS COS INC DEL COM COM 969457100 26,800 -1,452 -5.14 644 -18.69 0.0151
2019-08-14 2019-06-30 13F WILLIAMS COS INC DEL COM COM 969457100 28,252 3,710 15.12 792 12.34 0.0210
2019-04-23 2019-03-31 13F/A-1 WILLIAMS COS INC DEL COM COM 969457100 24,542 24,542 705 0.0254
2019-04-12 2019-03-31 13F WILLIAMS COS INC DEL COM COM 969457100 25,839 570 0.0304
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.