The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership2,300,484 shares
Latest Disclosed Value $ 167,429,108
Rhumbline Advisers reports 1.74% decrease in ownership of WMB / The Williams Companies, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 2,300,484 shares of The Williams Companies, Inc. (MX:WMB) valued at $167,429,108 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,341,310 shares of The Williams Companies, Inc.. This represents a change in shares of -1.74% 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 CO INC COM COM 969457100 2,300,484 -40,826 -1.74 167,429 18.97 0.1432
2026-02-13 2025-12-31 13F WILLIAMS CO INC COM COM 969457100 2,341,310 -47,291 -1.98 140,736 -6.99 0.1138
2025-11-06 2025-09-30 13F WILLIAMS CO INC COM COM 969457100 2,388,601 -3,622 -0.15 151,318 0.71 0.1215
2025-08-12 2025-06-30 13F WILLIAMS CO INC COM COM 969457100 2,392,223 -39,432 -1.62 150,255 3.40 0.1287
2025-05-29 2025-03-31 13F/A-1 WILLIAMS CO INC COM COM 969457100 2,431,655 53,947 2.27 145,316 12.93 0.1359
2025-04-08 2025-03-31 13F WILLIAMS CO INC COM COM 969457100 2,431,655 53,947 145,316 0.1359
2025-05-29 2024-12-31 13F/A-1 WILLIAMS CO INC COM COM 969457100 2,377,708 -64,739 -2.65 128,681 15.41 0.1151
2025-01-30 2024-12-31 13F WILLIAMS CO INC COM COM 969457100 2,377,708 -64,739 128,681 0.1151
2024-11-12 2024-09-30 13F WILLIAMS CO INC COM COM 969457100 2,442,447 -65,545 -2.61 111,498 4.60 0.1006
2024-08-01 2024-06-30 13F WILLIAMS CO INC COM COM 969457100 2,507,992 -12,358 -0.49 106,590 8.52 0.1002
2024-05-09 2024-03-31 13F WILLIAMS CO INC COM COM 969457100 2,520,350 7,479 0.30 98,218 12.22 0.0943
2024-02-08 2023-12-31 13F WILLIAMS CO INC COM COM 969457100 2,512,871 -22,399 -0.88 87,523 2.47 0.0917
2023-11-09 2023-09-30 13F WILLIAMS CO INC COM COM 969457100 2,535,270 -12,696 -0.50 85,413 2.73 0.0991
2023-08-08 2023-06-30 13F WILLIAMS CO INC COM COM 969457100 2,547,966 215,652 9.25 83,140 120,392.75 0.0931
2023-05-11 2023-03-31 13F WILLIAMS CO INC COM COM 969457100 2,332,314 43,396 1.90 70 -99.91 0.0859
2023-02-14 2022-12-31 13F WILLIAMS CO INC COM COM 969457100 2,288,918 90,009 4.09 75,305 19.62 0.1012
2022-11-10 2022-09-30 13F WILLIAMS CO INC COM COM 969457100 2,198,909 83,419 3.94 62,955 -4.65 0.0938
2022-08-11 2022-06-30 13F WILLIAMS CO INC COM COM 969457100 2,115,490 225,159 11.91 66,024 4.54 0.0963
2022-05-12 2022-03-31 13F WILLIAMS CO INC COM COM 969457100 1,890,331 59,934 3.27 63,156 32.50 0.0813
2022-02-10 2021-12-31 13F WILLIAMS CO INC COM COM 969457100 1,830,397 52,081 2.93 47,664 3.33 0.0584
2021-11-12 2021-09-30 13F WILLIAMS CO INC COM COM 969457100 1,778,316 -63,317 -3.44 46,130 -5.65 0.0624
2021-08-05 2021-06-30 13F WILLIAMS CO INC COM COM 969457100 1,841,633 -73,122 -3.82 48,895 7.79 0.0642
2021-05-06 2021-03-31 13F WILLIAMS CO INC COM COM 969457100 1,914,755 -104,222 -5.16 45,361 12.06 0.0616
2021-02-10 2020-12-31 13F WILLIAMS CO INC COM COM 969457100 2,018,977 -648 -0.03 40,480 2.00 0.0559
2020-11-12 2020-09-30 13F WILLIAMS CO INC COM COM 969457100 2,019,625 -43,682 -2.12 39,686 1.13 0.0622
2020-08-13 2020-06-30 13F WILLIAMS CO INC COM COM 969457100 2,063,307 53,385 2.66 39,244 37.99 0.0655
2020-05-06 2020-03-31 13F WILLIAMS CO INC COM COM 969457100 2,009,922 116,352 6.14 28,440 -36.68 0.0596
2020-02-05 2019-12-31 13F WILLIAMS CO INC COM COM 969457100 1,893,570 68,917 3.78 44,915 2.31 0.0751
2019-10-23 2019-09-30 13F WILLIAMS CO INC COM COM 969457100 1,824,653 -7,676 -0.42 43,901 -14.55 0.0802
2019-08-14 2019-06-30 13F WILLIAMS CO INC COM COM 969457100 1,832,329 54,991 3.09 51,379 0.65 0.0964
2019-05-01 2019-03-31 13F WILLIAMS CO INC COM COM 969457100 1,777,338 -223,100 -11.15 51,045 15.72 0.0988
2019-01-31 2018-12-31 13F WILLIAMS CO INC COM COM 969457100 2,000,438 24,624 1.25 44,110 -17.89 0.0960
2018-11-07 2018-09-30 13F WILLIAMS CO INC COM COM 969457100 1,975,814 566,203 40.17 53,722 40.58 0.1038
2018-08-06 2018-06-30 13F WILLIAMS CO INC COM COM 969457100 1,409,611 -20,510 -1.43 38,215 7.49 0.0771
2018-05-02 2018-03-31 13F WILLIAMS CO INC COM COM 969457100 1,430,121 -21,737 -1.50 35,553 -19.69 0.0743
2018-02-09 2017-12-31 13F WILLIAMS CO INC COM COM 969457100 1,451,858 -159 -0.01 44,267 1.59 0.0899
2017-11-06 2017-09-30 13F WILLIAMS CO INC COM COM 969457100 1,452,017 12,035 0.84 43,575 -0.06 0.0947
2017-08-02 2017-06-30 13F WILLIAMS CO INC COM COM 969457100 1,439,982 89,130 6.60 43,603 9.08 0.0995
2017-05-02 2017-03-31 13F WILLIAMS CO INC COM COM 969457100 1,350,852 187,001 16.07 39,972 10.29 0.0934
2017-01-27 2016-12-31 13F WILLIAMS CO INC COM COM 969457100 1,163,851 82,449 7.62 36,242 9.06 0.0918
2016-11-08 2016-09-30 13F WILLIAMS CO INC COM COM 969457100 1,081,402 46,274 4.47 33,231 48.42 0.0916
2016-08-11 2016-06-30 13F WILLIAMS CO INC COM COM 969457100 1,035,128 6,830 0.66 22,390 35.49 0.0663
2016-05-02 2016-03-31 13F WILLIAMS COS INC COM 969457100 1,028,298 30,783 3.09 16,525 -35.54 0.0513
2016-02-03 2015-12-31 13F WILLIAMS COS INC COM 969457100 997,515 33,789 3.51 25,636 -27.81 0.0825
2015-11-04 2015-09-30 13F WILLIAMS COS INC COM 969457100 963,726 12,454 1.31 35,513 -34.95 0.1208
2015-08-04 2015-06-30 13F WILLIAMS COS INC COM 969457100 951,272 -206,665 -17.85 54,594 -6.80 0.1740
2015-05-12 2015-03-31 13F WILLIAMS COS INC COM 969457100 1,157,937 -22,790 -1.93 58,580 10.40 0.1690
2015-02-06 2014-12-31 13F WILLIAMS COS INC COM 969457100 1,180,727 -35,465 -2.92 53,062 -21.17 0.1541
2014-11-12 2014-09-30 13F WILLIAMS COS INC COM 969457100 1,216,192 23,237 1.95 67,316 -3.06 0.2022
2014-08-06 2014-06-30 13F WILLIAMS COS INC COM 969457100 1,192,955 16,213 1.38 69,442 45.42 0.2038
2014-05-06 2014-03-31 13F WILLIAMS COS INC COM 969457100 1,176,742 -9,965 -0.84 47,752 4.33 0.1416
2014-02-03 2013-12-31 13F WILLIAMS COS INC COM 969457100 1,186,707 -64,160 -5.13 45,771 0.64 0.1350
2013-11-05 2013-09-30 13F WILLIAMS COS INC COM 969457100 1,250,867 -7,100 -0.56 45,482 11.35 0.1409
2013-08-07 2013-06-30 13F WILLIAMS COS INC COM 969457100 1,257,967 1,257,967 40,846 0.1312
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.