Southwest Gas Holdings, Inc. (SWX) · Insider trading

What Southwest Gas Holdings's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months

0 insiders, 0 trades

Sold, 12 months

$450,035

2 insiders, 55% under a plan

Net, 12 months

−$450,035

bought less sold

Latest filing

2026-09-29

filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

Bought Sold Largest month: $156.81M

Who traded, two years

Insider	Bought	Sold	Trades	Last trade	Holds after
Icahn Carl C10% owner	–	$380.19M	3	2025-09-25	–
Stefani Robert JSVP/CFO/Controller	–	$670,100	2	2025-06-27	24,665
Brown Justin LPresident/Southwest Gas Corp.	–	$245,510	1	2026-01-09	6,320
Williams Julie M.SVP/Cont. Improvement and Opt.	–	$204,525	1	2026-09-28	26,450
Sandoval Brian EDirector	$1,886	–	1	2025-09-10	1,562

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

Date	Insider	Trade	Shares	Price	Value	Holds after	Filing
2026-09-28	Williams Julie M.SVP/Cont. Improvement and Opt.	Sale	2,500	81.81	$204,525	26,450	Form 4
2026-01-09	Brown Justin LPresident/Southwest Gas Corp.	Saleplan	3,028	81.08	$245,510	6,320	Form 4
2025-09-25	Icahn Carl C10% ownerwith Icahn Partners LP, Icahn Partners Master Fund LP	Saleindirect	1,500,000	77.91	$116.86M	6,032,604	Form 4
2025-09-10	Sandoval Brian EDirector	Buy	24	78.57	$1,886	1,562	Form 4
2025-06-27	Stefani Robert JSVP/CFO/Controller	Sale	7,000	75.00	$525,000	24,665	Form 4
2025-03-28	Stefani Robert JSVP/Chief Financial Officer	Sale	2,000	72.55	$145,100	31,665	Form 4
2025-03-24	Icahn Carl C10% ownerwith Icahn Partners LP, Icahn Partners Master Fund LP	Saleindirect	2,100,000	74.60	$156.66M	7,532,604	Form 4
2024-11-19	Icahn Carl C10% ownerwith Icahn Partners LP, Icahn Partners Master Fund LP	Saleindirect	1,390,000	76.74	$106.67M	9,632,604	Form 4

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

81 × grant or award36 × shares withheld for tax

Show them

Date	Insider	What	Shares	Price	Holds after	Filing
2026-05-07	Kim LeezieDirector	Grant or award A	+1,196	–	1,196	Form 4
2026-05-07	Carson Molly R.Director	Grant or award A	+1,196	–	1,196	Form 4
2026-02-27	Forsberg Justin SSVP/Chief Financial Officer	Shares withheld for tax F	−520	80.02	6,862	Form 4
2026-02-27	Gabe Randall P.SVP/Chief Administrative OFC	Shares withheld for tax F	−2,172	80.02	24,153	Form 4
2026-02-27	Brown Justin LPresident/Southwest Gas Corp.	Shares withheld for tax F	−3,209	87.60	34,461	Form 4
2026-02-27	Brown Justin LPresident/Southwest Gas Corp.	Shares withheld for tax F	−6,838	80.02	27,623	Form 4
2026-02-27	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Shares withheld for tax F	−544	80.02	16,150	Form 4
2026-02-27	Williams Julie M.SVP/Cont. Improvement and Opt.	Shares withheld for tax F	−3,473	80.02	28,950	Form 4
2026-02-27	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Shares withheld for tax F	−1,182	80.02	15,118	Form 4
2026-02-27	Haller Karen SPresident and CEO	Shares withheld for tax F	−13,105	80.02	185,798	Form 4
2026-02-22	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+8,427	–	37,670	Form 4
2026-02-19	Ruisanchez CarlosDirector	Grant or award A	+1,726	–	10,693	Form 4
2026-02-19	Sandoval Brian EDirector	Grant or award A	+1,726	–	3,299	Form 4
2026-02-19	Williams Julie M.SVP/Cont. Improvement and Opt.	Grant or award A	+2,994	–	23,598	Form 4
2026-02-19	Williams Julie M.SVP/Cont. Improvement and Opt.	Grant or award A	+8,825	–	32,422	Form 4
2026-02-19	Thornton Leslie TDirector	Grant or award A	+1,726	–	17,201	Form 4
2026-02-19	Sharma RubyDirector	Grant or award A	+1,726	–	9,480	Form 4
2026-02-19	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Grant or award A	+3,965	–	14,461	Form 4
2026-02-19	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Grant or award A	+2,233	–	16,694	Form 4
2026-02-19	Forsberg Justin SSVP/Chief Financial Officer	Grant or award A	+3,570	–	5,868	Form 4
2026-02-19	Forsberg Justin SSVP/Chief Financial Officer	Grant or award A	+1,514	–	7,382	Form 4
2026-02-19	Haller Karen SPresident and CEO	Grant or award A	+16,756	–	165,599	Form 4
2026-02-19	Haller Karen SPresident and CEO	Grant or award A	+33,304	–	198,904	Form 4
2026-02-19	Conley e RenaeDirector	Grant or award A	+2,588	–	12,282	Form 4
2026-02-19	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+5,544	–	11,865	Form 4
2026-02-19	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+17,378	–	29,242	Form 4
2026-02-19	Mariucci Anne LDirector	Grant or award A	+1,726	–	50,100	Form 4
2026-02-19	Pineda Fabio AVP/Controller/CAO	Grant or award A	+1,214	–	2,417	Form 4
2026-02-19	Linginfelter Henry PDirector	Grant or award A	+1,726	–	10,046	Form 4
2026-02-19	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Grant or award A	+2,824	–	11,978	Form 4
2026-02-19	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Grant or award A	+4,323	–	16,301	Form 4
2026-02-19	Lewis-Raymond JaneDirector	Grant or award A	+1,726	–	17,474	Form 4
2026-02-19	Evans Andrew WDirector	Grant or award A	+1,726	–	10,046	Form 4
2026-02-19	Gabe Randall P.SVP/Chief Administrative OFC	Grant or award A	+2,340	–	20,557	Form 4
2026-02-19	Gabe Randall P.SVP/Chief Administrative OFC	Grant or award A	+5,769	–	26,325	Form 4
2026-01-08	Brown Justin LPresident/Southwest Gas Corp.	Shares withheld for tax F	−2,573	80.15	34,123	Form 4
2026-01-08	Haller Karen SPresident and CEO	Shares withheld for tax F	−7,631	80.15	148,843	Form 4
2026-01-08	Pineda Fabio AVP/Controller/CAO	Shares withheld for tax F	−250	80.15	1,204	Form 4
2026-01-08	Williams Julie M.SVP/Cont. Improvement and Opt.	Shares withheld for tax F	−1,271	80.15	20,604	Form 4
2026-01-08	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Shares withheld for tax F	−864	80.15	9,154	Form 4
2026-01-08	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Shares withheld for tax F	−737	80.15	10,496	Form 4
2026-01-08	Forsberg Justin SSVP/Chief Financial Officer	Shares withheld for tax F	−408	80.15	2,298	Form 4
2026-01-08	Gabe Randall P.SVP/Chief Administrative OFC	Shares withheld for tax F	−1,037	80.15	18,216	Form 4
2025-11-25	Stefani Robert JSVP/Chief Financial Officer	Shares withheld for tax F	−4,484	80.44	28,444	Form 4
2025-09-05	Haller Karen SPresident and CEO	Grant or award A	+42,157	–	170,406	Form 4
2025-09-05	Haller Karen SPresident and CEO	Shares withheld for tax F	−16,589	78.60	153,817	Form 4
2025-09-05	Stefani Robert JSVP/CFO/Controller	Grant or award A	+12,547	–	37,211	Form 4
2025-09-05	Stefani Robert JSVP/CFO/Controller	Shares withheld for tax F	−4,881	78.60	32,331	Form 4
2025-07-17	Pineda Fabio AVP/Controller/CAO	Grant or award A	+1,443	–	1,443	Form 4
2025-05-01	Sandoval Brian EDirector	Grant or award A	+1,538	–	1,538	Form 4
2025-03-05	Brown Justin LPresident/Southwest Gas Corp.	Shares withheld for tax F	−3,211	76.89	36,205	Form 4
2025-03-04	Brown Justin LPresident/Southwest Gas Corp.	Shares withheld for tax F	−1,555	70.71	39,416	Form 4
2025-03-04	Gabe Randall P.SVP/Chief Administrative OFC	Shares withheld for tax F	−467	70.71	19,078	Form 4
2025-03-04	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Shares withheld for tax F	−254	70.71	10,885	Form 4
2025-03-04	Haller Karen SPresident and CEO	Shares withheld for tax F	−5,418	70.71	128,249	Form 4
2025-03-04	Williams Julie M.SVP/Cont. Improvement and Opt.	Shares withheld for tax F	−289	70.71	21,187	Form 4
2025-03-04	Colvin Lori LVP/Controller/CAO	Shares withheld for tax F	−424	70.71	8,567	Form 4
2025-03-04	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Shares withheld for tax F	−239	70.71	9,845	Form 4
2025-02-24	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+8,161	–	40,972	Form 4
2025-02-20	Thornton Leslie TDirector	Grant or award A	+2,051	–	15,177	Form 4
2025-02-20	Sharma RubyDirector	Grant or award A	+2,051	–	7,539	Form 4
2025-02-20	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Grant or award A	+3,182	–	9,102	Form 4
2025-02-20	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Grant or award A	+982	–	10,084	Form 4
2025-02-20	Teno AndrewDirector	Grant or award A	+2,051	–	7,996	Form 4
2025-02-20	Lewis-Raymond JaneDirector	Grant or award A	+2,051	–	16,752	Form 4
2025-02-20	Conley e RenaeDirector	Grant or award A	+2,051	–	9,528	Form 4
2025-02-20	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Grant or award A	+3,574	–	10,096	Form 4
2025-02-20	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Grant or award A	+1,044	–	11,139	Form 4
2025-02-20	Linginfelter Henry PDirector	Grant or award A	+2,051	–	8,105	Form 4
2025-02-20	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+6,266	–	28,823	Form 4
2025-02-20	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+3,987	–	32,810	Form 4
2025-02-20	Williams Julie M.SVP/Cont. Improvement and Opt.	Grant or award A	+2,736	–	20,742	Form 4
2025-02-20	Williams Julie M.SVP/Cont. Improvement and Opt.	Grant or award A	+733	–	21,476	Form 4
2025-02-20	Thoman A. RandallDirector	Grant or award A	+2,051	–	42,738	Form 4
2025-02-20	Ruisanchez CarlosDirector	Grant or award A	+2,051	–	8,683	Form 4
2025-02-20	Mariucci Anne LDirector	Grant or award A	+2,051	–	47,251	Form 4
2025-02-20	Colvin Lori LVP/Controller/CAO	Grant or award A	+1,421	–	7,856	Form 4
2025-02-20	Colvin Lori LVP/Controller/CAO	Grant or award A	+1,136	–	8,992	Form 4
2025-02-20	Stefani Robert JSVP/Chief Financial Officer	Grant or award A	+6,427	–	33,665	Form 4
2025-02-20	Haller Karen SPresident and CEO	Grant or award A	+19,007	–	119,898	Form 4
2025-02-20	Haller Karen SPresident and CEO	Grant or award A	+13,768	–	133,666	Form 4
2025-02-20	Gabe Randall P.SVP/Chief Administrative OFC	Grant or award A	+2,673	–	18,296	Form 4
2025-02-20	Gabe Randall P.SVP/Chief Administrative OFC	Grant or award A	+1,249	–	19,545	Form 4
2025-02-20	Evans Andrew WDirector	Grant or award A	+2,051	–	8,105	Form 4
2025-01-13	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Shares withheld for tax F	−408	71.43	6,473	Form 4
2025-01-13	Brown Justin LPresident/Southwest Gas Corp.	Shares withheld for tax F	−2,022	71.34	21,808	Form 4
2025-01-13	Williams Julie M.SVP/Cont. Improvement and Opt.	Shares withheld for tax F	−1,039	71.34	17,744	Form 4
2025-01-13	Stefani Robert JSVP/Chief Financial Officer	Shares withheld for tax F	−2,092	71.34	27,059	Form 4
2025-01-13	Colvin Lori LVP/Controller/CAO	Shares withheld for tax F	−492	71.34	6,319	Form 4
2025-01-13	Haller Karen SPresident and CEO	Shares withheld for tax F	−6,923	71.34	99,157	Form 4
2025-01-13	Timperley Amy L.SVP/Chief Reg. & Fin. Planning	Shares withheld for tax F	−622	71.34	5,781	Form 4
2025-01-13	Gabe Randall P.SVP/Chief Administrative OFC	Shares withheld for tax F	−852	71.34	15,445	Form 4
2024-12-02	Teno AndrewDirector	Grant or award A	+36	78.16	5,945	Form 5
2024-12-02	Linginfelter Henry PDirector	Grant or award A	+36	78.16	6,054	Form 5
2024-12-02	Conley e RenaeDirector	Grant or award A	+36	78.16	7,477	Form 5
2024-12-02	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Grant or award A	+32	78.16	5,920	Form 5
2024-12-02	Timperley Amy L.SVP/Chief Reg. & Public Aff.	Grant or award A	+68	78.16	8,692	Form 5
2024-12-02	Gabe Randall P.SVP/Chief Administrative OFC	Grant or award A	+40	78.16	15,623	Form 5
2024-12-02	Gabe Randall P.SVP/Chief Administrative OFC	Grant or award A	+9	78.16	1,160	Form 5
2024-12-02	Evans Andrew WDirector	Grant or award A	+36	78.16	6,054	Form 5
2024-12-02	Thornton Leslie TDirector	Grant or award A	+68	78.16	13,127	Form 5
2024-12-02	Stefani Robert JSVP/Chief Financial Officer	Grant or award A	+178	78.16	27,237	Form 5
2024-12-02	Sharma RubyDirector	Grant or award A	+36	78.16	5,488	Form 5
2024-12-02	Haller Karen SPresident and CEO	Grant or award A	+301	78.16	100,891	Form 5
2024-12-02	Haller Karen SPresident and CEO	Grant or award A	+19	78.16	2,420	Form 5
2024-12-02	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Grant or award A	+24	78.16	6,522	Form 5
2024-12-02	Mazzeo Catherine MSVP/Chief Legal/Comp. Officer	Grant or award A	+6	78.16	722	Form 5
2024-12-02	Colvin Lori LVP/Controller/CAO	Grant or award A	+22	78.16	6,434	Form 5
2024-12-02	Colvin Lori LVP/Controller/CAO	Grant or award A	+0	78.16	18	Form 5
2024-12-02	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+87	78.16	22,557	Form 5
2024-12-02	Brown Justin LPresident/Southwest Gas Corp.	Grant or award A	+27	78.16	3,482	Form 5
2024-12-02	Thoman A. RandallDirector	Grant or award A	+273	78.16	40,688	Form 5
2024-12-02	Lewis-Raymond JaneDirector	Grant or award A	+104	78.16	14,701	Form 5
2024-12-02	Williams Julie M.SVP/Cont. Improvement and Opt.	Grant or award A	+40	78.16	18,007	Form 5
2024-12-02	Williams Julie M.SVP/Cont. Improvement and Opt.	Grant or award A	+19	78.16	2,407	Form 5
2024-12-02	Mariucci Anne LDirector	Grant or award A	+255	78.16	45,201	Form 5
2024-11-27	Stefani Robert JSVP/Chief Financial Officer	Shares withheld for tax F	−4,341	77.47	29,151	Form 4

How to read it

Buy, sale: Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan: A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after: The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value: Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

Southwest Gas Holdings's scores and multiples ›