The Williams Companies, Inc.
US ˙ NYSE ˙ US9694571004

SecurityWMB / The Williams Companies, Inc.
InstitutionCastleview Partners, Llc
Latest Disclosed Ownership5,210 shares
Latest Disclosed Value $ 379,184
Castleview Partners, Llc reports 8.36% increase in ownership of WMB / The Williams Companies, Inc.

On May 1, 2026 - Castleview Partners, Llc filed a 13F-HR form disclosing ownership of 5,210 shares of The Williams Companies, Inc. (US:WMB) valued at $379,184 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 4,808 shares of The Williams Companies, Inc.. This represents a change in shares of 8.36% during the quarter. The current value of the position is $373,349 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-01 2026-03-31 13F WILLIAMS COS COM 969457100 5,210 402 8.36 379 31.14 0.1944
2026-01-12 2025-12-31 13F WILLIAMS COS COM 969457100 4,808 524 12.23 289 6.64 0.1432
2025-10-10 2025-09-30 13F WILLIAMS COS COM 969457100 4,284 -123 -2.79 271 -1.81 0.1474
2025-07-16 2025-06-30 13F WILLIAMS COS COM 969457100 4,407 -85 -1.89 277 2.99 0.1779
2025-04-22 2025-03-31 13F WILLIAMS COS COM 969457100 4,492 183 4.25 268 11.67 0.1817
2025-01-21 2024-12-31 13F/A-1 WILLIAMS COS COM 969457100 4,309 -122 -2.75 241 18.81 0.1296
2025-01-21 2024-12-31 13F WILLIAMS COS COM 969457100 4,431 0 202 0.1166
2024-10-21 2024-09-30 13F/A-1 WILLIAMS COS COM 969457100 4,431 -134 -2.94 202 4.12 0.1166
2024-10-09 2024-09-30 13F WILLIAMS COS COM 969457100 4,565 0 194 0.1103
2024-07-31 2024-06-30 13F WILLIAMS COS COM 969457100 4,565 4,565 194 0.1103
2023-10-26 2023-09-30 13F WILLIAMS COS COM 969457100 0 -204 -100.00 0 -100.00
2023-08-15 2023-06-30 13F WILLIAMS COS COM 969457100 204 2 0.99 7 0.00 0.0060
2023-05-16 2023-03-31 13F WILLIAMS COS COM 969457100 202 4 2.02 6 0.00 0.0053
2023-02-01 2022-12-31 13F WILLIAMS COS COM 969457100 198 198 7 0.0064
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.