Southwest Gas Holdings, Inc.

Natural Gas Transmisison & Distribution

SWX Utilities People in Utilities SEC CIK 0001692115 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$6.24B
72,445,853 shares Covers every share class this company has on file.
Insiders on file
16
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$48.13M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
0.77%
insider-held value divided by market capitalisation

What Southwest Gas Holdings, Inc. reports

Revenue and net income below are for fiscal period FY2023, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$5.43B
FY2023 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$439.83M
FY2023 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
2,453
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at Southwest Gas Holdings, Inc.

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against Southwest Gas Holdings, Inc..
Insider Reported role Shares Value Last action
Officers 6
Justin L Brown President 56,285 $4.96M F Shares withheld for taxes Feb 27, 2026 position reported
Julie M Williams SVP 31,435 $2.77M F Shares withheld for taxes Feb 27, 2026 position reported
Robert J Stefani CFO 28,444 $2.50M F Shares withheld for taxes Nov 25, 2025 position reported
Randall P Gabe SVP 25,351 $2.23M F Shares withheld for taxes Feb 27, 2026 position reported
Amy L Timperley SVP 24,094 $2.12M F Shares withheld for taxes Feb 27, 2026 position reported
Catherine M Mazzeo SVP 16,896 $1.49M F Shares withheld for taxes Feb 27, 2026 position reported
Officers who also sit on the board 1
Karen S Haller CEO 189,293 $16.67M F Shares withheld for taxes Feb 27, 2026 position reported
Directors 9
Anne L. Mariucci Board Member 50,100 $4.41M A Grant or award Feb 19, 2026 position reported
A. Randall Thoman Board Member 42,738 $3.76M A Grant or award Feb 20, 2025 position reported
Jane Lewis-Raymond Board Member 18,974 $1.67M A Grant or award Feb 19, 2026 position reported
Leslie T Thornton Board Member 17,201 $1.51M A Grant or award Feb 19, 2026 position reported
E. Renae Conley E. Renae Conley Board Member 12,282 $1.08M A Grant or award Feb 19, 2026 position reported
Carlos Ruisanchez Board Member 10,693 $941.6K A Grant or award Feb 19, 2026 position reported
Andrew W Evans Board Member 10,046 $884.6K A Grant or award Feb 19, 2026 position reported
Ruby Sharma Ruby Sharma Board Member 9,480 $834.8K A Grant or award Feb 19, 2026 position reported
Brian E Sandoval Board Member 3,299 $290.5K A Grant or award Feb 19, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Robert J Stefani sold 7,000 Southwest Gas Holdings, Inc. (SWX) shares for $525,000 on Jun 27, 2025

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Robert J Stefani sold 7,000 Southwest Gas Holdings, Inc. (SWX) shares for $525,000 on Jun 27, 2025
Date Insider Transaction Shares Price Value Filing
Jun 27, 2025 Robert J Stefani S Open-market sale 7,000 held after: 24,664.71 $75.00 $525,000 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 185 rows we hold, 1 are open-market purchases (P) and 6 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for Southwest Gas Holdings, Inc., newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Feb 27, 2026 Catherine M Mazzeo F Shares withheld for taxes 544 $80.02 $43.5K SEC filing ↗
Feb 27, 2026 Amy L Timperley F Shares withheld for taxes 1,182 $80.02 $94.6K SEC filing ↗
Feb 27, 2026 Randall P Gabe F Shares withheld for taxes 2,172 $80.02 $173.8K SEC filing ↗
Feb 27, 2026 Julie M Williams F Shares withheld for taxes 3,473 $80.02 $277.9K SEC filing ↗
Feb 27, 2026 Justin L Brown F Shares withheld for taxes 6,838 $80.02 $547.2K SEC filing ↗
Feb 27, 2026 Justin L Brown F Shares withheld for taxes 3,209 $87.60 $281.1K SEC filing ↗
Feb 27, 2026 Karen S Haller F Shares withheld for taxes 13,105 $80.02 $1.05M SEC filing ↗
Feb 22, 2026 Justin L Brown A Grant or award 8,427 $0.00 $0 SEC filing ↗
Feb 19, 2026 Catherine M Mazzeo A Grant or award 3,965 $0.00 $0 SEC filing ↗
Feb 19, 2026 Catherine M Mazzeo A Grant or award 2,233 $0.00 $0 SEC filing ↗
Feb 19, 2026 Amy L Timperley A Grant or award 4,323 $0.00 $0 SEC filing ↗
Feb 19, 2026 Amy L Timperley A Grant or award 2,824 $0.00 $0 SEC filing ↗
Feb 19, 2026 Randall P Gabe A Grant or award 2,340 $0.00 $0 SEC filing ↗
Feb 19, 2026 Randall P Gabe A Grant or award 5,769 $0.00 $0 SEC filing ↗
Feb 19, 2026 Julie M Williams A Grant or award 8,825 $0.00 $0 SEC filing ↗
Feb 19, 2026 Julie M Williams A Grant or award 2,994 $0.00 $0 SEC filing ↗
Feb 19, 2026 Ruby Sharma A Grant or award 1,726 $0.00 $0 SEC filing ↗
Feb 19, 2026 Brian E Sandoval A Grant or award 1,726 $0.00 $0 SEC filing ↗
Feb 19, 2026 Jane Lewis-Raymond A Grant or award 1,726 $0.00 $0 SEC filing ↗
Feb 19, 2026 Carlos Ruisanchez A Grant or award 1,726 $0.00 $0 SEC filing ↗
Feb 19, 2026 Andrew W Evans A Grant or award 1,726 $0.00 $0 SEC filing ↗
Feb 19, 2026 Justin L Brown A Grant or award 17,378 $0.00 $0 SEC filing ↗
Feb 19, 2026 Justin L Brown A Grant or award 5,544 $0.00 $0 SEC filing ↗
Feb 19, 2026 Karen S Haller A Grant or award 16,756 $0.00 $0 SEC filing ↗
Feb 19, 2026 Karen S Haller A Grant or award 33,304 $0.00 $0 SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Corporate ownership links — 2 filers hold a position, what this company owns

Who owns Southwest Gas Holdings, Inc.

Each row is one filer naming this company.

Funds, trusts and other companies file the same ownership forms that executives do. Everything below is taken from those filings, with the position exactly as the filing states it.

Do not add these figures together. 2 of the positions below were reported on filings shared by several filers at once.

Why the same shares appear twice

On a joint filing every named filer is listed against the whole position, so the same block of stock appears under each name. Those rows are marked joint.

Filers holding a position in Southwest Gas Holdings, Inc.

Funds, trusts and companies that disclose an ownership position in Southwest Gas Holdings, Inc..
Owner Reported role Shares Filed
ICAHN PARTNERS LP TenPercentOwner 6,032,604 joint
ICAHN PARTNERS MASTER FUND LP TenPercentOwner 6,032,604 joint

What Southwest Gas Holdings, Inc. owns

This company files as an owner of the companies below.

A name in plain text is the end of the trail: we hold the filing that names it, but no separate record to open.

Southwest Gas Holdings, Inc.
Being named on an ownership form is not the same as legal parent–subsidiary control.

That relationship only holds if the filing says so. The map draws at most eight holdings per level, stops after two levels, and never doubles back on a name it has already passed through.

See the full ownership map — every entity that files as an owner of a US public company.

Subsidiaries — 6 legal entities

Subsidiaries of Southwest Gas Holdings, Inc.

6 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries Southwest Gas Holdings, Inc. names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Great Basin Gas Transmission Company Nevada
Southwest Gas Corporation California
Southwest Gas Transmission Company —
Southwest Gas Utility Group, Inc. California
The Southwest Companies Nevada
Utility Financial Corp. Nevada
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from Southwest Gas Holdings, Inc.’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from Southwest Gas Holdings, Inc.’s own SEC filings multiplied by the closing price we hold for the same stock.

Logo: Southwest Gas Corporation / Public domain , via Wikimedia Commons ↗ — used here to identify the company. Trademarks remain the property of their owner.