The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionGuardian Capital Lp
Latest Disclosed Ownership830,532 shares
Latest Disclosed Value $ 60,446,119
Guardian Capital Lp reports 12.48% increase in ownership of WMB / The Williams Companies, Inc.

On May 15, 2026 - Guardian Capital Lp filed a 13F-HR form disclosing ownership of 830,532 shares of The Williams Companies, Inc. (MX:WMB) valued at $60,446,119 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 738,403 shares of The Williams Companies, Inc.. This represents a change in shares of 12.48% 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 830,532 92,129 12.48 60,446 36.19 1.0537
2026-02-18 2025-12-31 13F WILLIAMS COS COM 969457100 738,403 -30,449 -3.96 44,385 -8.87 1.3162
2025-11-12 2025-09-30 13F WILLIAMS COS COM 969457100 768,852 54,852 7.68 48,707 8.61 1.5723
2025-08-07 2025-06-30 13F WILLIAMS COS COM 969457100 714,000 19,770 2.85 44,846 8.10 1.5845
2025-05-14 2025-03-31 13F WILLIAMS COS COM 969457100 694,230 13,563 1.99 41,487 12.62 1.6318
2025-02-14 2024-12-31 13F WILLIAMS COS COM 969457100 680,667 7,319 1.09 36,838 19.84 1.3691
2024-11-12 2024-09-30 13F WILLIAMS COS COM 969457100 673,348 -3,766 -0.56 30,738 6.81 1.1257
2024-08-13 2024-06-30 13F WILLIAMS COS COM 969457100 677,114 -3,080 -0.45 28,777 8.56 1.0851
2024-05-14 2024-03-31 13F WILLIAMS COS COM 969457100 680,194 -83 -0.01 26,507 11.87 0.9239
2024-02-08 2023-12-31 13F WILLIAMS COS COM 969457100 680,277 -8,833 -1.28 23,694 2.06 0.8491
2023-11-13 2023-09-30 13F WILLIAMS COS COM 969457100 689,110 -111,146 -13.89 23,216 -11.09 0.8640
2023-08-14 2023-06-30 13F WILLIAMS COS COM 969457100 800,256 -3,511 -0.44 26,112 8.80 0.8360
2023-05-15 2023-03-31 13F WILLIAMS COS COM 969457100 803,767 -2,928 -0.36 24,000 -9.57 0.7650
2023-02-14 2022-12-31 13F WILLIAMS COS COM 969457100 806,695 -3,245 -0.40 26,540 14.45 0.8738
2022-11-14 2022-09-30 13F WILLIAMS COS COM 969457100 809,940 -2,652 -0.33 23,189 -8.56 0.7974
2022-08-12 2022-06-30 13F WILLIAMS COS COM 969457100 812,592 248,989 44.18 25,361 34.68 0.7757
2022-05-16 2022-03-31 13F WILLIAMS COS COM 969457100 563,603 563,603 18,830 0.3660
2016-05-12 2016-03-31 13F WILLIAMS COS INC DEL COM 969457100 0 0 0 0.0000
2016-02-12 2015-12-31 13F WILLIAMS COS INC DEL COM 969457100 0 -169,365 -100.00 0 -100.00
2015-11-12 2015-09-30 13F WILLIAMS COS INC DEL COM 969457100 169,365 -1,215 -0.71 6,241 -36.25 0.1185
2015-08-13 2015-06-30 13F WILLIAMS COS INC DEL COM 969457100 170,580 170,580 0.00 9,790 0.1661
2015-02-13 2014-12-31 13F WILLIAMS COS INC DEL COM 969457100 0 -248,316 -100.00 0 -100.00
2014-11-12 2014-09-30 13F WILLIAMS COS INC DEL COM 969457100 248,316 4,359 1.79 13,744 -3.22 0.2065
2014-08-14 2014-06-30 13F WILLIAMS COS INC DEL COM 969457100 243,957 -20,053 -7.60 14,201 32.55 0.2054
2014-05-14 2014-03-31 13F WILLIAMS COS INC DEL COM 969457100 264,010 -820 -0.31 10,714 4.90 0.1663
2014-02-13 2013-12-31 13F WILLIAMS COS INC DEL COM 969457100 264,830 -29,602 -10.05 10,214 -4.60 0.1618
2013-11-06 2013-09-30 13F WILLIAMS COS INC DEL COM 969457100 294,432 294,432 10,706 0.1747
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.