The Williams Companies, Inc.
MX ˙ BMV ˙ US9694571004
SecurityMX:WMB / The Williams Companies, Inc.
InstitutionPenbrook Management LLC
Latest Disclosed Ownership19,130 shares
Latest Disclosed Value $ 1,392,281
Penbrook Management LLC ownership in WMB / The Williams Companies, Inc.

On April 21, 2026 - Penbrook Management LLC filed a 13F-HR form disclosing ownership of 19,130 shares of The Williams Companies, Inc. (MX:WMB) valued at $1,392,281 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 6, 2026 disclosing 19,130 shares of The Williams Companies, Inc.. This represents a change in shares of 0.00% 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)
2026-04-21 2026-03-31 13F WILLIAMS COS INC COM Stock 969457100 19,130 0 0.00 1,392 21.15 1.0543
2026-01-06 2025-12-31 13F WILLIAMS COS INC COM Stock 969457100 19,130 -150 -0.78 1,150 -5.90 0.7932
2025-10-22 2025-09-30 13F WILLIAMS COS INC COM Stock 969457100 19,280 -450 -2.28 1,221 -1.45 0.8528
2025-07-28 2025-06-30 13F/A-1 WILLIAMS COS INC COM Stock 969457100 19,730 0 0.00 1,239 5.09 0.9319
2025-07-25 2025-06-30 13F WILLIAMS COS Stock 969457100 19,730 0 1,179 0.8912
2025-04-01 2025-03-31 13F WILLIAMS COS Stock 969457100 19,730 -200 -1.00 1,179 9.37 0.8912
2025-01-23 2024-12-31 13F WILLIAMS COS Stock 969457100 19,930 -100 -0.50 1,079 17.94 0.7358
2024-10-15 2024-09-30 13F WILLIAMS COS Stock 969457100 20,030 -2,200 -9.90 914 -3.18 0.5944
2024-07-24 2024-06-30 13F WILLIAMS COS Stock 969457100 22,230 -100 -0.45 945 8.51 0.5767
2024-04-18 2024-03-31 13F WILLIAMS COS Stock 969457100 22,330 -2,000 -8.22 870 2.72 0.5393
2024-01-16 2023-12-31 13F WILLIAMS COS Stock 969457100 24,330 -350 -1.42 847 1.93 0.5693
2023-10-10 2023-09-30 13F WILLIAMS COS Stock 969457100 24,680 -300 -1.20 831 1.96 0.6093
2023-07-17 2023-06-30 13F WILLIAMS COS Stock 969457100 24,980 -1,000 -3.85 815 5.16 0.5908
2023-04-20 2023-03-31 13F WILLIAMS COS Stock 969457100 25,980 0 0.00 776 -9.25 0.5944
2023-01-24 2022-12-31 13F WILLIAMS COS Stock 969457100 25,980 -400 -1.52 855 13.11 0.7285
2022-10-31 2022-09-30 13F WILLIAMS COS Stock 969457100 26,380 -1,000 -3.65 755 -11.70 0.6498
2022-07-29 2022-06-30 13F WILLIAMS COS Stock 969457100 27,380 0 0.00 855 -6.56 0.6743
2022-04-26 2022-03-31 13F WILLIAMS COS INC COM Stock 969457100 27,380 0 0.00 915 28.33 0.5936
2022-01-10 2021-12-31 13F WILLIAMS COS Stock 969457100 27,380 850 3.20 713 3.63 0.4296
2021-10-26 2021-09-30 13F WILLIAMS COS INC COM Stock 969457100 26,530 -200 -0.75 688 -3.10 0.4275
2021-07-27 2021-06-30 13F WILLIAMS COS INC COM COM 969457100 26,730 1,700 6.79 710 19.73 0.4256
2021-05-06 2021-03-31 13F/A-2 WILLIAMS COS Stock 969457100 25,030 -300 -1.18 593 16.73 0.4268
2021-05-05 2021-03-31 13F/A-1 WILLIAMS COS Stock 969457100 25,030 0 593 0.4302
2021-04-16 2021-03-31 13F WILLIAMS COS Stock 969457100 25,770 440 365 0.4249
2022-04-25 2020-12-31 13F/A-1 WILLIAMS COS INC COM Stock 969457100 25,330 -200 -0.78 508 1.20 0.3913
2021-01-27 2020-12-31 13F WILLIAMS COS COM 969457100 25,330 -200 508 0.3581
2020-10-23 2020-09-30 13F WILLIAMS COS COM 969457100 25,530 1,300 5.37 502 8.89 0.4352
2020-07-28 2020-06-30 13F WILLIAMS COS COM 969457100 24,230 -240 -0.98 461 33.24 0.4535
2020-04-14 2020-03-31 13F WILLIAMS COS COM 969457100 24,470 -200 -0.81 346 -40.85 0.4431
2020-01-16 2019-12-31 13F WILLIAMS COS COM 969457100 24,670 2,000 8.82 585 7.34 0.5700
2019-10-11 2019-09-30 13F WILLIAMS COS COM 969457100 22,670 2,080 10.10 545 -5.55 0.5913
2019-07-15 2019-06-30 13F WILLIAMS COS INC COM COM 969457100 20,590 700 3.52 577 1.05 0.6191
2019-04-24 2019-03-31 13F WILLIAMS COS COM 969457100 19,890 -1,250 -5.91 571 22.53 0.5937
2019-02-01 2018-12-31 13F WILLIAMS COS COM 969457100 21,140 0 0.00 466 -18.96 0.5318
2018-10-23 2018-09-30 13F WILLIAMS COS COM 969457100 21,140 -1,400 -6.21 575 -5.89 0.5507
2018-07-30 2018-06-30 13F WILLIAMS COS COM 969457100 22,540 0 0.00 611 9.11 0.5877
2018-04-27 2018-03-31 13F WILLIAMS COS COM 969457100 22,540 -3,940 -14.88 560 -30.61 0.5599
2018-02-21 2017-12-31 13F WILLIAMS COS COM 969457100 26,480 5,110 23.91 807 22.83 0.7265
2016-10-27 2016-09-30 13F WILLIAMS COS COM 969457100 21,370 0 0.00 657 42.21 0.7079
2016-08-05 2016-06-30 13F WILLIAMS COS COM 969457100 21,370 -600 -2.73 462 30.88 0.5094
2016-04-21 2016-03-31 13F WILLIAMS COS COM 969457100 21,970 0 0.00 353 -37.52 0.3886
2016-01-29 2015-12-31 13F WILLIAMS COS COM 969457100 21,970 0 0.00 565 -30.25 0.5795
2015-11-12 2015-09-30 13F WILLIAMS COS INC COM COM 969457100 21,970 -480 -2.14 810 -37.11 0.8577
2015-08-04 2015-06-30 13F WILLIAMS COS COM 969457100 22,450 0 0.00 1,288 13.38 1.2232
2015-04-27 2015-03-31 13F WILLIAMS COS COM 969457100 22,450 22,450 0.00 1,136 -11.80 1.0091
2015-01-28 2014-12-31 13F WILLIAMS COS COM 969457100 0 -21,350 -100.00 0 -100.00
2014-10-16 2014-09-30 13F WILLIAMS COS COM 969457100 21,350 0 0.00 1,182 -4.91 1.0899
2014-08-04 2014-06-30 13F WILLIAMS COS COM 969457100 21,350 150 0.71 1,243 44.53 1.0977
2014-05-07 2014-03-31 13F/A-1 WILLIAMS COS COM 969457100 21,200 -200 -0.93 860 4.24 0.8132
2014-05-02 2014-03-31 13F WILLIAMS COS COM 969457100 21,400 825
2014-03-25 2013-12-31 13F WILLIAMS COS COM 969457100 21,400 21,400 825 0.8006
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.