$WMB

$71.75 +$0.05 (0.07%) Close

$WMB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 1.22B shares outstanding

Who owns WMB?

By type of holder

Institutions 89.6% Insiders 0.5% Everyone else 9.9%

Concentration Top 10 holders own 40.6%

BlackRock, Inc. 9.4% · Vanguard Capital Management LLC 6.5%

Institutional ownership

89.6%

+3.6 pts vs last qtr

Institutional holders

1,828

+4 vs last qtr

Net shares bought

+44.3M

by institutions in Q2 2026

New / sold out

161 / 157

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +12.1M
Wellington Management Group LLP +10.0M

Biggest sellers in Q2 2026

Qube Research & Technologies Ltd −3.8M
Commonwealth Of Pennsylvania Public School Empls Retrmt Sys SOLD OUT −2.0M

Who is planning to sell?

Notices of proposed sale, last 12 months

$31.8M

21 notices from 7 people

Shares covered

466.0K

0.04% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

The Williams Companies FNDN, Inc Company foundation $20.8M
Wilson Terrance Lane Officer $4.73M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+63.2%

+5.59% a year

Each share's claim on the business

−38.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$139M vs $738M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years85% 3–5 years3% 1–3 years7% Under 1 year5%

Quarterly turnover

6.1%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting WMB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	115.5M	9.44%	+3.6M (+3.2%)	≤2021	0.1%
Shares held by quarter Peak holding115.5M (Q2'26) Change over 8 quarters+8.5M Share of the company9.440% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	79.8M	6.53%	+492.2K (+0.6%)	≤2021	0.1%
Shares held by quarter Peak holding79.8M (Q2'26) Change over 8 quarters+79.8M Share of the company6.530% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

115.5M

% of company

9.44%

Change vs last qtr

+3.6M (+3.2%)

Held since

≤2021

Vanguard Capital Management LLC

79.8M

% of company

6.53%

Change vs last qtr

+492.2K (+0.6%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Williams Companies Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting WMB on Form N-PORT; together they hold 33.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.89B	38.8M	3.17%	0.13%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$2.36B	31.7M	2.59%	0.14%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.89B

% of company

3.17%

% of the fund

0.13%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$2.36B

% of company

2.59%

% of the fund

0.14%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Williams Companies Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
AA Armstrong Alan S Insider	2.8M	0.23%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.230% Armstrong Alan S's insider activity →
ZC Zamarin Chad J. Insider	730.8K	0.06%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.060% Zamarin Chad J.'s insider activity →

Armstrong Alan S

Insider

2.8M

% of company

0.23%

Change vs last qtr

—

Held since

—

Zamarin Chad J.

Insider

730.8K

% of company

0.06%

Change vs last qtr

—

Held since

—

25 more holders behind a free account

See every insider and 5%+ holder of Williams Companies Inc.

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