The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionBeck Mack & Oliver Llc
Latest Disclosed Ownership424,135 shares
Latest Disclosed Value $ 30,868,545
Beck Mack & Oliver Llc reports 0.60% decrease in ownership of WMB / The Williams Companies, Inc.

On May 12, 2026 - Beck Mack & Oliver Llc filed a 13F-HR form disclosing ownership of 424,135 shares of The Williams Companies, Inc. (MX:WMB) valued at $30,868,545 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 426,685 shares of The Williams Companies, Inc.. This represents a change in shares of -0.60% 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)
2026-05-12 2026-03-31 13F WILLIAMS COS INC DEL COM 969457100 424,135 -2,550 -0.60 30,869 20.35 0.6365
2026-02-12 2025-12-31 13F WILLIAMS COS INC DEL COM 969457100 426,685 -14,318 -3.25 25,648 -8.19 0.4658
2025-11-14 2025-09-30 13F WILLIAMS COS INC DEL COM 969457100 441,003 -10,471 -2.32 27,938 -1.48 0.5081
2025-08-14 2025-06-30 13F WILLIAMS COS INC DEL COM 969457100 451,474 -2,200 -0.48 28,357 4.60 0.5413
2025-05-15 2025-03-31 13F WILLIAMS COS INC DEL COM 969457100 453,674 -6,086 -1.32 27,112 8.96 0.5415
2025-02-13 2024-12-31 13F WILLIAMS COS INC DEL COM 969457100 459,760 500 0.11 24,882 18.68 0.4605
2024-11-13 2024-09-30 13F WILLIAMS COS INC DEL COM 969457100 459,260 -16,150 -3.40 20,965 3.77 0.4078
2024-08-14 2024-06-30 13F WILLIAMS COS INC DEL COM 969457100 475,410 -29,635 -5.87 20,205 2.66 0.4185
2024-05-14 2024-03-31 13F WILLIAMS COS INC DEL COM 969457100 505,045 -450 -0.09 19,682 11.79 0.3989
2024-02-14 2023-12-31 13F WILLIAMS COS INC DEL COM 969457100 505,495 -800 -0.16 17,606 3.22 0.4095
2023-11-14 2023-09-30 13F WILLIAMS COS INC DEL COM 969457100 506,295 -4,980 -0.97 17,057 2.25 0.4465
2023-08-08 2023-06-30 13F WILLIAMS COS INC DEL COM 969457100 511,275 -1,900 -0.37 16,683 8.87 0.4359
2023-05-15 2023-03-31 13F WILLIAMS COS INC DEL COM 969457100 513,175 -5,610 -1.08 15,323 -10.22 0.4426
2023-02-14 2022-12-31 13F/A-1 WILLIAMS COS INC DEL COM 969457100 518,785 730 0.14 17,068 15.08 0.5010
2023-02-14 2022-12-31 13F WILLIAMS COS INC DEL COM 969457100 518,785 730 17,068 0.4820
2022-11-10 2022-09-30 13F WILLIAMS COS INC DEL COM 969457100 518,055 -3,216 -0.62 14,832 -8.83 0.4789
2022-08-12 2022-06-30 13F WILLIAMS COS INC DEL COM 969457100 521,271 709 0.14 16,269 -6.46 0.4879
2022-05-16 2022-03-31 13F WILLIAMS COS INC DEL COM 969457100 520,562 -2,993 -0.57 17,392 27.57 0.4356
2022-01-28 2021-12-31 13F WILLIAMS COS INC DEL COM 969457100 523,555 -10,784 -2.02 13,633 -1.64 0.3246
2021-11-04 2021-09-30 13F WILLIAMS COS INC DEL COM 969457100 534,339 4,284 0.81 13,861 -1.51 0.3596
2021-07-28 2021-06-30 13F WILLIAMS COS INC DEL COM 969457100 530,055 -15,914 -2.91 14,073 8.81 0.3744
2021-05-11 2021-03-31 13F WILLIAMS COS INC DEL COM 969457100 545,969 31,814 6.19 12,934 25.46 0.3994
2021-02-10 2020-12-31 13F WILLIAMS COS INC DEL COM 969457100 514,155 -2,000 -0.39 10,309 1.65 0.3422
2020-11-02 2020-09-30 13F WILLIAMS COS INC DEL COM 969457100 516,155 8,440 1.66 10,142 5.02 0.3726
2020-08-10 2020-06-30 13F WILLIAMS COS INC DEL COM 969457100 507,715 3,100 0.61 9,657 35.25 0.3590
2020-05-05 2020-03-31 13F WILLIAMS COS INC DEL COM 969457100 504,615 -26,014 -4.90 7,140 -43.27 0.3175
2020-02-07 2019-12-31 13F WILLIAMS COS INC DEL COM 969457100 530,629 -14,900 -2.73 12,587 -4.10 0.4159
2019-11-06 2019-09-30 13F WILLIAMS COS INC DEL COM 969457100 545,529 -389 -0.07 13,125 -14.26 0.4623
2019-08-13 2019-06-30 13F WILLIAMS COS INC DEL COM 969457100 545,918 -8,900 -1.60 15,308 -3.93 0.5379
2019-05-02 2019-03-31 13F WILLIAMS COS INC DEL COM 969457100 554,818 -11,100 -1.96 15,934 27.70 0.5699
2019-02-04 2018-12-31 13F WILLIAMS COS INC DEL COM 969457100 565,918 5,057 0.90 12,478 -18.18 0.5006
2018-10-29 2018-09-30 13F WILLIAMS COS INC DEL COM 969457100 560,861 -45,558 -7.51 15,250 -7.24 0.4843
2018-07-25 2018-06-30 13F WILLIAMS COS INC DEL COM 969457100 606,419 -2,750 -0.45 16,440 8.56 0.5521
2018-04-25 2018-03-31 13F WILLIAMS COS INC DEL COM 969457100 609,169 5,050 0.84 15,144 -17.79 0.5097
2018-02-02 2017-12-31 13F WILLIAMS COS INC DEL COM 969457100 604,119 -9,536 -1.55 18,420 0.02 0.6042
2017-10-27 2017-09-30 13F WILLIAMS COS INC DEL COM 969457100 613,655 -2,000 -0.32 18,416 -1.21 0.6058
2017-07-26 2017-06-30 13F WILLIAMS COS INC DEL COM 969457100 615,655 1,950 0.32 18,642 2.65 0.6276
2017-04-27 2017-03-31 13F WILLIAMS COS INC DEL COM 969457100 613,705 64,200 11.68 18,160 6.12 0.6350
2017-01-31 2016-12-31 13F WILLIAMS COS INC DEL COM 969457100 549,505 -100 -0.02 17,112 1.32 0.6154
2016-10-28 2016-09-30 13F WILLIAMS COS INC DEL COM 969457100 549,605 -3,400 -0.61 16,889 41.20 0.6090
2016-07-29 2016-06-30 13F WILLIAMS COS INC DEL COM 969457100 553,005 16,900 3.15 11,961 38.84 0.4223
2016-04-27 2016-03-31 13F WILLIAMS COS INC DEL COM 969457100 536,105 52,317 10.81 8,615 -30.71 0.3008
2016-02-01 2015-12-31 13F WILLIAMS COS INC DEL COM 969457100 483,788 3,133 0.65 12,433 -29.80 0.4238
2015-11-02 2015-09-30 13F WILLIAMS COS INC DEL COM 969457100 480,655 4,390 0.92 17,712 -35.20 0.5359
2015-07-31 2015-06-30 13F WILLIAMS COS INC DEL COM 969457100 476,265 -6,234 -1.29 27,333 11.98 0.7123
2015-04-28 2015-03-31 13F WILLIAMS COS INC DEL COM 969457100 482,499 482,499 0.00 24,409 0.6110
2015-01-26 2014-12-31 13F WILLIAMS COS INC DEL COM 969457100 0 -488,815 -100.00 0 -100.00
2014-10-29 2014-09-30 13F WILLIAMS COS INC DEL COM 969457100 488,815 -22,400 -4.38 27,056 -9.08 0.6358
2014-07-31 2014-06-30 13F WILLIAMS COS INC DEL COM 969457100 511,215 -3,100 -0.60 29,758 42.59 0.6681
2014-04-30 2014-03-31 13F WILLIAMS COS INC DEL COM 969457100 514,315 -3,900 -0.75 20,870 4.42 0.4877
2014-01-29 2013-12-31 13F WILLIAMS COS INC DEL COM 969457100 518,215 -125,193 -19.46 19,987 -14.57 0.4885
2013-10-28 2013-09-30 13F/A-1 WILLIAMS COS INC DEL COM 969457100 643,408 -20,341 -3.06 23,395 8.55 0.6158
2013-10-28 2013-09-30 13F WILLIAMS COS INC DEL COM 969457100 663,749 21,552
2013-07-24 2013-06-30 13F WILLIAMS COS INC DEL COM 969457100 663,749 663,749 21,552 0.5881
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.