The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionMAI Capital Management
Latest Disclosed Ownership230,632 shares
Latest Disclosed Value $ 16,785,428
MAI Capital Management reports 298.40% increase in ownership of WMB / The Williams Companies, Inc.

On May 15, 2026 - MAI Capital Management filed a 13F-HR form disclosing ownership of 230,632 shares of The Williams Companies, Inc. (MX:WMB) valued at $16,785,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 57,889 shares of The Williams Companies, Inc.. This represents a change in shares of 298.40% 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 230,632 172,743 298.40 16,785 382.47 0.0947
2026-02-13 2025-12-31 13F WILLIAMS COS COM 969457100 57,889 724 1.27 3,480 -3.92 0.0200
2025-11-10 2025-09-30 13F WILLIAMS COS COM 969457100 57,165 13,691 31.49 3,621 32.64 0.0226
2025-08-12 2025-06-30 13F WILLIAMS COS COM 969457100 43,474 2,400 5.84 2,731 11.25 0.0189
2025-05-15 2025-03-31 13F WILLIAMS COS COM 969457100 41,074 578 1.43 2,455 12.00 0.0185
2025-02-14 2024-12-31 13F WILLIAMS COS COM 969457100 40,496 3,948 10.80 2,192 31.35 0.0162
2024-11-07 2024-09-30 13F Williams Companies CS 969457100 36,548 -10,134 -21.71 1,668 -15.93 0.0159
2024-08-12 2024-06-30 13F Williams Companies CS 969457100 46,682 371 0.80 1,984 9.98 0.0194
2024-05-08 2024-03-31 13F Williams Companies CS 969457100 46,311 2,884 6.64 1,805 19.31 0.0187
2024-02-09 2023-12-31 13F Williams Companies CS 969457100 43,427 1,412 3.36 1,513 6.86 0.0199
2023-11-14 2023-09-30 13F Williams Companies CS 969457100 42,015 -829 -1.93 1,415 1.29 0.0210
2023-08-02 2023-06-30 13F Williams Companies CS 969457100 42,844 2,597 6.45 1,398 16.32 0.0206
2023-05-10 2023-03-31 13F Williams Companies CS 969457100 40,247 1,473 3.80 1,202 -5.80 0.0189
2023-02-09 2022-12-31 13F Williams Companies CS 969457100 38,774 -1,037 -2.60 1,276 11.84 0.0214
2022-11-15 2022-09-30 13F Williams Companies CS 969457100 39,811 9,412 30.96 1,140 20.13 0.0214
2022-07-19 2022-06-30 13F Williams Companies CS 969457100 30,399 230 0.76 949 -5.85 0.0181
2022-05-10 2022-03-31 13F Williams Companies CS 969457100 30,169 7,969 35.90 1,008 74.39 0.0169
2022-02-11 2021-12-31 13F Williams Companies CS 969457100 22,200 -680 -2.97 578 -2.69 0.0093
2021-11-12 2021-09-30 13F Williams Companies CS 969457100 22,880 -8,025 -25.97 594 -27.65 0.0114
2021-07-19 2021-06-30 13F Williams Companies CS 969457100 30,905 -4,964 -13.84 821 -3.41 0.0163
2021-05-10 2021-03-31 13F Williams Companies CS 969457100 35,869 -26,162 -42.18 850 -31.67 0.0190
2021-02-16 2020-12-31 13F Williams Companies CS 969457100 62,031 -10,582 -14.57 1,244 -12.82 0.0311
2020-10-26 2020-09-30 13F Williams Companies CS 969457100 72,613 -12,050 -14.23 1,427 -11.37 0.0413
2020-07-27 2020-06-30 13F Williams Companies CS 969457100 84,663 -11,178 -11.66 1,610 18.73 0.0505
2020-04-16 2020-03-31 13F Williams Companies CS 969457100 95,841 4,611 5.05 1,356 -37.34 0.0553
2020-02-03 2019-12-31 13F Williams Companies CS 969457100 91,230 -21,668 -19.19 2,164 -20.32 0.0701
2019-10-29 2019-09-30 13F Williams Companies CS 969457100 112,898 -8,966 -7.36 2,716 -20.52 0.1210
2019-08-15 2019-06-30 13F Williams Companies CS 969457100 121,864 4,624 3.94 3,417 1.49 0.1544
2019-04-29 2019-03-31 13F Williams Companies CS 969457100 117,240 2,778 2.43 3,367 33.40 0.1724
2019-01-30 2018-12-31 13F Williams Companies CS 969457100 114,462 -100,621 -46.78 2,524 -56.84 0.1471
2018-10-12 2018-09-30 13F Williams Companies CS 969457100 215,083 189,038 725.81 5,848 728.33 0.2988
2018-08-16 2018-06-30 13F Williams Companies CS 969457100 26,045 9,088 53.59 706 67.30 0.0381
2018-04-17 2018-03-31 13F Williams Companies CS 969457100 16,957 -5,915 -25.86 422 -39.45 0.0240
2018-01-30 2017-12-31 13F Williams Companies CS 969457100 22,872 -453 -1.94 697 -0.43 0.0396
2017-10-12 2017-09-30 13F Williams Companies CS 969457100 23,325 -500 -2.10 700 -2.91 0.0425
2017-08-07 2017-06-30 13F Williams Companies CS 969457100 23,825 5,291 28.55 721 31.57 0.0464
2017-05-11 2017-03-31 13F Williams Companies CS 969457100 18,534 -264 -1.40 548 -6.32 0.0369
2017-01-31 2016-12-31 13F Williams Companies CS 969457100 18,798 -4,041 -17.69 585 -16.67 0.0425
2016-10-18 2016-09-30 13F Williams Companies CS 969457100 22,839 -408 -1.76 702 39.56 0.0529
2016-07-14 2016-06-30 13F Williams Companies CS 969457100 23,247 -8,833 -27.53 503 -2.52 0.0388
2016-04-08 2016-03-31 13F Williams Companies CS 969457100 32,080 -139,629 -81.32 516 -88.31 0.0395
2016-01-27 2015-12-31 13F Williams Companies CS 969457100 171,709 -247,079 -59.00 4,413 -71.40 0.3364
2015-10-28 2015-09-30 13F Williams Companies CS 969457100 418,788 -24,497 -5.53 15,432 -39.34 1.1672
2015-07-09 2015-06-30 13F Williams Companies CS 969457100 443,285 7,492 1.72 25,440 15.39 1.6763
2015-04-30 2015-03-31 13F Williams Companies CS 969457100 435,793 29,884 7.36 22,047 20.86 1.4773
2015-01-20 2014-12-31 13F Williams Companies CS 969457100 405,909 -4,043 -0.99 18,242 -19.61 1.2792
2014-10-16 2014-09-30 13F/A-1 Williams Companies CS 969457100 409,952 70,963 20.93 22,691 14.99 2.1861
2014-10-16 2014-09-30 13F Williams Companies COM 969457100 338,989 19,733
2014-07-28 2014-06-30 13F Williams Companies COM 969457100 338,989 22,215 7.01 19,733 53.50 1.8962
2014-04-28 2014-03-31 13F Williams Companies COM 969457100 316,774 -1,393 -0.44 12,855 4.75 1.2941
2014-02-06 2013-12-31 13F Williams Companies COM 969457100 318,167 -2,797 -0.87 12,272 5.16 1.3011
2013-10-28 2013-09-30 13F Williams Cos COM 969457100 320,964 17,031 5.60 11,670 18.25 1.5164
2013-08-01 2013-06-30 13F Williams Cos COM 969457100 303,933 303,933 9,869 1.2864
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.