The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionSumitomo Life Insurance Co
Latest Disclosed Ownership70,436 shares
Latest Disclosed Value $ 5,126,332
Sumitomo Life Insurance Co reports 5.34% decrease in ownership of WMB / The Williams Companies, Inc.

On May 12, 2026 - Sumitomo Life Insurance Co filed a 13F-HR form disclosing ownership of 70,436 shares of The Williams Companies, Inc. (MX:WMB) valued at $5,126,332 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 74,411 shares of The Williams Companies, Inc.. This represents a change in shares of -5.34% 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 COM Common 969457100 70,436 -3,975 -5.34 5,126 14.62 0.1205
2026-02-13 2025-12-31 13F WILLIAMS COS INC COM Common 969457100 74,411 4,635 6.64 4,473 1.18 0.1225
2025-11-12 2025-09-30 13F WILLIAMS COS INC COM Common 969457100 69,776 -1,244 -1.75 4,420 -0.90 0.1372
2025-08-05 2025-06-30 13F WILLIAMS COS INC COM Common 969457100 71,020 2,793 4.09 4,461 9.39 0.3026
2025-05-02 2025-03-31 13F WILLIAMS COS INC COM Common 969457100 68,227 -476 -0.69 4,077 9.66 0.1459
2025-01-23 2024-12-31 13F WILLIAMS COS INC COM Common 969457100 68,703 4,644 7.25 3,718 27.15 0.0702
2024-10-16 2024-09-30 13F WILLIAMS COS INC COM Common 969457100 64,059 9,561 17.54 2,924 26.25 0.0574
2024-07-19 2024-06-30 13F WILLIAMS COS INC COM Common 969457100 54,498 25,594 88.55 2,316 105.68 0.0536
2024-04-26 2024-03-31 13F WILLIAMS COS INC COM Common 969457100 28,904 -1,272 -4.22 1,126 7.14 0.0292
2024-01-30 2023-12-31 13F WILLIAMS COS INC COM Common 969457100 30,176 -1,453 -4.59 1,051 -1.31 0.0327
2023-10-23 2023-09-30 13F WILLIAMS COS INC COM Common 969457100 31,629 -474 -1.48 1,066 1.72 0.0300
2023-07-20 2023-06-30 13F WILLIAMS COS INC COM Common 969457100 32,103 -2,995 -8.53 1,048 104,600.00 0.0461
2023-04-27 2023-03-31 13F WILLIAMS COS INC COM Common 969457100 35,098 -361 -1.02 1 0.00 0.0882
2023-01-18 2022-12-31 13F WILLIAMS COS INC COM Common 969457100 35,459 -1,923 -5.14 1 -99.91 0.0860
2022-10-31 2022-09-30 13F WILLIAMS COS INC COM Common 969457100 37,382 -2,753 -6.86 1,070 -14.60 0.0453
2022-07-22 2022-06-30 13F WILLIAMS COS INC COM Common 969457100 40,135 1,319 3.40 1,253 -3.39 0.0351
2022-04-27 2022-03-31 13F WILLIAMS COS INC COM Common 969457100 38,816 -1,423 -3.54 1,297 23.76 0.0321
2022-02-04 2021-12-31 13F WILLIAMS COS INC COM Common 969457100 40,239 -1,078 -2.61 1,048 -2.24 0.0249
2021-10-25 2021-09-30 13F WILLIAMS COS INC COM Common 969457100 41,317 -1,740 -4.04 1,072 -6.21 0.0287
2021-07-20 2021-06-30 13F WILLIAMS COS INC COM Common 969457100 43,057 -6,751 -13.55 1,143 -3.14 0.0363
2021-04-27 2021-03-31 13F WILLIAMS COS INC COM Common 969457100 49,808 -2,048 -3.95 1,180 13.46 0.0475
2021-02-05 2020-12-31 13F WILLIAMS COS INC COM Common 969457100 51,856 -5,785 -10.04 1,040 -8.21 0.0439
2020-10-29 2020-09-30 13F WILLIAMS COS INC COM Common 969457100 57,641 -4,288 -6.92 1,133 -3.82 0.0527
2020-07-22 2020-06-30 13F WILLIAMS COS INC COM Common 969457100 61,929 -3,908 -5.94 1,178 26.39 0.0631
2020-05-01 2020-03-31 13F WILLIAMS COS INC COM Common 969457100 65,837 646 0.99 932 -39.72 0.0663
2020-01-24 2019-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 65,191 3,899 6.36 1,546 4.81 0.1752
2019-10-24 2019-09-30 13F WILLIAMS COS INC DEL COM Common 969457100 61,292 -7,823 -11.32 1,475 -23.89 0.1919
2019-07-26 2019-06-30 13F WILLIAMS COS INC DEL COM Common 969457100 69,115 2,464 3.70 1,938 1.25 0.2287
2019-04-17 2019-03-31 13F WILLIAMS COS INC DEL COM Common 969457100 66,651 -7,149 -9.69 1,914 17.64 0.2573
2019-01-24 2018-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 73,800 30,000 68.49 1,627 37.07 0.2255
2018-07-23 2018-06-30 13F WILLIAMS COS INC DEL COM Common 969457100 43,800 2,141 5.14 1,187 14.58 0.1456
2018-04-27 2018-03-31 13F WILLIAMS COS INC DEL COM Common 969457100 41,659 -1,958 -4.49 1,036 -22.11 0.1370
2018-02-01 2017-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 43,617 -2,118 -4.63 1,330 -3.13 0.1669
2017-10-17 2017-09-30 13F WILLIAMS COS INC DEL COM Common 969457100 45,735 -833 -1.79 1,373 -2.62 0.1749
2017-07-27 2017-06-30 13F WILLIAMS COS INC DEL COM Common 969457100 46,568 1,976 4.43 1,410 6.90 0.1839
2017-04-26 2017-03-31 13F WILLIAMS COS INC DEL COM Common 969457100 44,592 33,858 315.43 1,319 294.91 0.1864
2017-01-27 2016-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 10,734 386 3.73 334 5.03 0.0476
2016-10-25 2016-09-30 13F WILLIAMS COS INC DEL COM Common 969457100 10,348 -1,403 -11.94 318 25.20 0.0472
2016-07-15 2016-06-30 13F WILLIAMS COS INC DEL COM Common 969457100 11,751 -353 -2.92 254 30.26 0.0348
2016-04-26 2016-03-31 13F WILLIAMS COS INC DEL COM Common 969457100 12,104 -11,778 -49.32 195 -68.24 0.0254
2016-01-21 2015-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 23,882 -14,076 -37.08 614 -56.11 0.0775
2015-10-22 2015-09-30 13F WILLIAMS COS INC DEL COM Common 969457100 37,958 -968 -2.49 1,399 -37.38 0.1856
2015-07-29 2015-06-30 13F WILLIAMS COS INC DEL COM Common 969457100 38,926 -4,815 -11.01 2,234 0.95 0.2722
2015-04-30 2015-03-31 13F WILLIAMS COS INC DEL COM Common 969457100 43,741 43,741 0.00 2,213 0.2441
2015-02-04 2014-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 0 -51,099 -100.00 0 -100.00
2014-11-04 2014-09-30 13F WILLIAMS COS INC DEL COM Common 969457100 51,099 -15,834 -23.66 2,828 -27.41 0.2765
2014-07-30 2014-06-30 13F WILLIAMS COS INC DEL COM Common 969457100 66,933 350 0.53 3,896 44.19 0.3725
2014-05-02 2014-03-31 13F WILLIAMS COS INC DEL COM Common 969457100 66,583 -5,624 -7.79 2,702 -2.98 0.2623
2014-02-07 2013-12-31 13F WILLIAMS COS INC DEL COM Common 969457100 72,207 -4,003 -5.25 2,785 0.51 0.2507
2013-11-13 2013-09-30 13F WILLIAMS COS INC DEL COM Common 969457100 76,210 -2,785 -3.53 2,771 8.03 0.2583
2013-08-08 2013-06-30 13F WILLIAMS COS INC DEL COM Common 096945710 78,995 78,995 2,565 0.2456
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.