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CASTLEARK MANAGEMENT LLC

Position in WMB — Williams Companies, Inc.

CIK 1106832 CHICAGO, IL

Position in WMB

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$9,590,220
+$2,032,590 QoQ
Shares Held
131,770
+4.8% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.37%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WMB Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Midstream

Energy · as of Mar 31, 2026

CASTLEARK MANAGEMENT LLC holds $53,988,569 across 19 Oil & Gas Midstream names. WMB ranks #1 (17.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 WMB
Williams Companies, Inc.
This page
131,770 $9,590,220

All Filings in WMB

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $9,590,220 131,770
2025-12-31 $7,557,630 125,730
2025-09-30 $6,755,644 106,640
2025-06-30 $6,698,058 106,640
2025-03-31 $4,189,773 70,110
2024-12-31 $1,383,848 25,570
2024-09-30 $1,167,270 25,570
2024-06-30 $1,086,725 25,570
2024-03-31 $996,462 25,570
2023-12-31 $890,603 25,570
2023-09-30 $861,453 25,570
2023-06-30 $366,434 11,230
2023-03-31 $444,615 14,890
2022-12-31 $671,489 20,410
2022-09-30 $584,338 20,410
2022-06-30 $796,167 25,510
2022-03-31 $852,289 25,510
2021-12-31 $664,280 25,510
2021-09-30 $887,407 34,210
2021-06-30 $908,275 34,210
2021-03-31 $810,434 34,210
2020-12-31 $712,978 35,560
2020-09-30 $206,521 10,510
2020-06-30 $199,900 10,510
2020-03-31 $148,716 10,510