The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership50,333 shares
Latest Disclosed Value $ 3,663,247
Blair William & Co/il reports 33.57% decrease in ownership of WMB / The Williams Companies, Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 50,333 shares of The Williams Companies, Inc. (MX:WMB) valued at $3,663,247 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 75,774 shares of The Williams Companies, Inc.. This represents a change in shares of -33.57% 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)
2026-05-08 2026-03-31 13F WILLIAMS COS COM 969457100 50,333 -25,441 -33.57 3,663 -19.57 0.0105
2026-02-17 2025-12-31 13F WILLIAMS COS COM 969457100 75,774 6,034 8.65 4,555 3.08 0.0122
2025-11-12 2025-09-30 13F WILLIAMS COS COM 969457100 69,740 7,737 12.48 4,418 13.46 0.0118
2025-07-24 2025-06-30 13F WILLIAMS COS COM 969457100 62,003 -607 -0.97 3,894 4.09 0.0108
2025-05-09 2025-03-31 13F WILLIAMS COS COM 969457100 62,610 3,489 5.90 3,742 16.94 0.0113
2025-02-12 2024-12-31 13F WILLIAMS COS COM 969457100 59,121 11,750 24.80 3,200 47.96 0.0093
2024-11-12 2024-09-30 13F WILLIAMS COS COM 969457100 47,371 -298 -0.63 2,162 6.77 0.0064
2024-08-12 2024-06-30 13F WILLIAMS COS COM 969457100 47,669 9,918 26.27 2,026 37.66 0.0062
2024-05-09 2024-03-31 13F WILLIAMS COS COM 969457100 37,751 -5,089 -11.88 1,471 -1.41 0.0046
2024-02-12 2023-12-31 13F WILLIAMS COS COM 969457100 42,840 5,558 14.91 1,492 18.79 0.0051
2023-11-09 2023-09-30 13F WILLIAMS COS COM 969457100 37,282 2,634 7.60 1,256 11.15 0.0048
2023-08-11 2023-06-30 13F WILLIAMS COS COM 969457100 34,648 -265 -0.76 1,131 8.45 0.0041
2023-05-12 2023-03-31 13F WILLIAMS COS COM 969457100 34,913 -2,854 -7.56 1,043 -16.10 0.0042
2023-02-10 2022-12-31 13F WILLIAMS COS COM 969457100 37,767 3,676 10.78 1,243 27.25 0.0054
2022-11-09 2022-09-30 13F WILLIAMS COS COM 969457100 34,091 1,991 6.20 976 -2.59 0.0045
2022-08-10 2022-06-30 13F WILLIAMS COS COM 969457100 32,100 3,874 13.72 1,002 6.26 0.0044
2022-05-13 2022-03-31 13F WILLIAMS COS COM 969457100 28,226 -7,300 -20.55 943 1.95 0.0033
2022-02-14 2021-12-31 13F WILLIAMS COS COM 969457100 35,526 -398 -1.11 925 -0.75 0.0029
2021-11-12 2021-09-30 13F WILLIAMS COS COM 969457100 35,924 -3,031 -7.78 932 -9.86 0.0032
2021-08-12 2021-06-30 13F WILLIAMS COS COM 969457100 38,955 -3,677 -8.62 1,034 2.38 0.0036
2021-05-13 2021-03-31 13F WILLIAMS COS COM 969457100 42,632 -2,938 -6.45 1,010 10.50 0.0038
2021-02-09 2020-12-31 13F WILLIAMS COS COM 969457100 45,570 -5,687 -11.10 914 -9.24 0.0034
2020-11-06 2020-09-30 13F WILLIAMS COS COM 969457100 51,257 15,108 41.79 1,007 46.37 0.0043
2020-08-12 2020-06-30 13F WILLIAMS COS COM 969457100 36,149 -2,662 -6.86 688 25.32 0.0033
2020-05-11 2020-03-31 13F WILLIAMS COS COM 969457100 38,811 -7,692 -16.54 549 -50.23 0.0034
2020-02-13 2019-12-31 13F WILLIAMS COS INC DEL COM 969457100 46,503 -124,583 -72.82 1,103 -73.20 0.0057
2019-11-12 2019-09-30 13F WILLIAMS COS INC DEL COM 969457100 171,086 -6,249 -3.52 4,116 -17.22 0.0237
2019-08-13 2019-06-30 13F WILLIAMS COS INC DEL COM 969457100 177,335 25,599 16.87 4,972 14.09 0.0284
2019-05-14 2019-03-31 13F WILLIAMS COS INC DEL COM 969457100 151,736 -4,460 -2.86 4,358 26.54 0.0266
2019-02-14 2018-12-31 13F WILLIAMS COS INC DEL COM 969457100 156,196 -127,521 -44.95 3,444 -55.35 0.0252
2018-11-13 2018-09-30 13F WILLIAMS COS INC DEL COM 969457100 283,717 238,830 532.07 7,714 533.85 0.0473
2018-08-13 2018-06-30 13F WILLIAMS COS INC DEL COM 969457100 44,887 -2,750 -5.77 1,217 2.79 0.0083
2018-05-15 2018-03-31 13F WILLIAMS COS INC DEL COM 969457100 47,637 574 1.22 1,184 -17.49 0.0084
2018-02-14 2017-12-31 13F WILLIAMS COS INC DEL COM 969457100 47,063 2,143 4.77 1,435 6.45 0.0097
2017-11-13 2017-09-30 13F WILLIAMS COS COM 969457100 44,920 1,235 2.83 1,348 1.89 0.0101
2017-08-04 2017-06-30 13F WILLIAMS COS COM 969457100 43,685 -408 -0.93 1,323 5.84 0.0099
2017-05-10 2017-03-31 13F WILLIAMS COS COM 969457100 44,093 -12 -0.03 1,250 -8.96 0.0101
2017-02-14 2016-12-31 13F WILLIAMS COS COM 969457100 44,105 2,192 5.23 1,373 6.60 0.0123
2016-11-14 2016-09-30 13F WILLIAMS COS COM 969457100 41,913 7,645 22.31 1,288 73.82 0.0114
2016-08-08 2016-06-30 13F WILLIAMS COS COM 969457100 34,268 34,268 0.00 741 0.0069
2016-02-16 2015-12-31 13F WILLIAMS COS COM 969457100 0 -9,565 -100.00 0 -100.00
2015-11-12 2015-09-30 13F WILLIAMS COS COM 969457100 9,565 3,548 58.97 352 2.03 0.0030
2015-08-03 2015-06-30 13F WILLIAMS COS COM 969457100 6,017 -1,602 -21.03 345 -10.39 0.0005
2015-05-11 2015-03-31 13F WILLIAMS COS COM 969457100 7,619 7,619 0.00 385 0.0006
2015-02-05 2014-12-31 13F WILLIAMS COS COM 969457100 0 -11,547 -100.00 0 -100.00
2014-11-04 2014-09-30 13F WILLIAMS COS COM 969457100 11,547 4,575 65.62 639 57.78 0.0011
2014-08-01 2014-06-30 13F WILLIAMS COS COM 969457100 6,972 900 14.82 405 64.63 0.0007
2014-05-06 2014-03-31 13F WILLIAMS COMPANIES COM 969457100 6,072 -12,007 -66.41 246 -64.66 0.0004
2014-02-11 2013-12-31 13F WILLIAMS COS COM 969457100 18,079 -113 -0.62 696 5.30 0.0012
2013-11-12 2013-09-30 13F WILLIAMS COS COM 969457100 18,192 10,400 133.47 661 162.30 0.0012
2013-08-07 2013-06-30 13F WILLIAMS COS COM 969457100 7,792 7,792 252 0.0005
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.