Southwest Gas Holdings SWX Insider Ownership

NYSE SWX
$82.67 +0.91 (+1.11%)
At close: Oct 2, 2026 · 4:00 PM EDT

Insider Holdings by Owner

37.83Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
—
share count not reported for this filer set
Shares Held by Insiders
37.85Mn
filed for Sep 2026
▼-0.01% QoQ
Shares Outstanding
—
not reported
Direct Holdings
969.26K
Indirect: 36.88Mn
Net Shares Traded (QoQ)
-2.50K
net selling in Sep 2026
Insiders Holding Shares
35
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

SWX's three largest insider shareholders as of October 03, 2026 are Carl C Icahn (TenPercentOwner, 11.02Mn shares), Carl C Icahn (TenPercentOwner, 10.84Mn shares), Carl C Icahn (TenPercentOwner, 8.94Mn shares).

Form 4 Holdings

Insiders Holding SWX

Insiders 35
Shares held 37.83Mn
Of outstanding —
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Carl C Icahn TenPercentOwner 0 36,844,354 36,844,354 97.4% 26 Sep, 2025
2 Karen S Haller President And Ceo 185,798 0 185,798 0.5% 03 Mar, 2026
3 John P Hester President And Ceo 118,130 4,312 122,442 0.3% 07 Mar, 2022
4 Robert L Boughner Director 58,998 0 58,998 0.2% 25 Feb, 2022
5 Paul M Daily Ceo/Centuri Group, Inc. 58,377 0 58,377 0.2% 28 Dec, 2023
6 Anne L Mariucci Director 50,100 0 50,100 0.1% 23 Feb, 2026
7 A. Randall Thoman Director 42,738 0 42,738 0.1% 24 Feb, 2025
8 Michael J Melarkey Director 42,232 0 42,232 0.1% 25 Feb, 2022
9 Stephen C Comer Director 38,160 0 38,160 0.1% 25 Feb, 2022
10 Thomas A Thomas Director 37,998 0 37,998 0.1% 25 Feb, 2022
11 Robert J Stefani Svp/Chief Financial Officer 28,444 0 28,444 0.1% 25 Nov, 2025
12 Justin L Brown President/Southwest Gas Corp. 27,623 0 27,623 0.1% 03 Mar, 2026
13 Julie M. Williams Svp/Cont. Improvement And Opt. 26,450 0 26,450 0.1% 29 Sep, 2026
14 Jose A Cardenas Director 25,810 0 25,810 0.1% 14 Jun, 2022
15 Gregory J Peterson Svp/Chief Financial Officer 20,359 5,229 25,588 0.1% 07 Mar, 2022
16 Randall P. Gabe Svp/Chief Administrative Ofc 24,153 0 24,153 0.1% 03 Mar, 2026
17 Kenneth J Kenny Vp/Finance/Treasurer 20,023 0 20,023 0.1% 24 Feb, 2023
18 Jane Lewis-Raymond Director 17,474 0 17,474 0.0% 23 Feb, 2026
19 Leslie T Thornton Director 17,201 0 17,201 0.0% 23 Feb, 2026
20 Catherine M Mazzeo Svp/Chief Legal/Comp. Officer 16,150 0 16,150 0.0% 03 Mar, 2026
21 Amy L. Timperley Svp/Chief Reg. Public Aff. 15,118 0 15,118 0.0% 03 Mar, 2026
22 Eric Debonis Svp/Exec Operations Advisor 9,264 3,788 13,052 0.0% 02 Jun, 2022
23 E Renae Conley Director 12,282 0 12,282 0.0% 23 Feb, 2026
24 Carlos Ruisanchez Director 10,693 0 10,693 0.0% 23 Feb, 2026
25 Andrew W Evans Director 10,046 0 10,046 0.0% 23 Feb, 2026
26 Henry P Linginfelter Director 10,046 0 10,046 0.0% 23 Feb, 2026
27 Ruby Sharma Director 9,480 0 9,480 0.0% 23 Feb, 2026
28 Lori L Colvin Vp/Controller/Cao 8,567 0 8,567 0.0% 05 Mar, 2025
29 Andrew Teno Director 7,996 0 7,996 0.0% 24 Feb, 2025
30 Justin S Forsberg Svp/Chief Financial Officer 6,862 0 6,862 0.0% 03 Mar, 2026
31 Thomas E. Moran Vp/General Counsel/Corp. Sec 4,582 0 4,582 0.0% 03 May, 2024
32 Brian E Sandoval Director 3,299 0 3,299 0.0% 23 Feb, 2026
33 Fabio A Pineda Vp/Controller/Cao 2,417 0 2,417 0.0% 23 Feb, 2026
34 Leezie Kim Director 1,196 0 1,196 0.0% 13 May, 2026
35 Molly R. Carson Director 1,196 0 1,196 0.0% 13 May, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

961 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
28 Sep, 2026 Julie M. Williams Svp/Cont. Improvement And Opt. Disposed S 2,500 $81.81 $204.52K 26,450 Direct
07 May, 2026 Leezie Kim Director Acquired A 1,196 $0.00 $0 1,196 Direct
07 May, 2026 Molly R. Carson Director Acquired A 1,196 $0.00 $0 1,196 Direct
27 Feb, 2026 Karen S Haller President And Ceo Disposed F 13,105 $80.02 $1.05Mn 185,798 Direct
27 Feb, 2026 Catherine M Mazzeo Svp/Chief Legal/Comp. Officer Disposed F 544 $80.02 $43.51K 16,150 Direct
27 Feb, 2026 Justin L Brown President/Southwest Gas Corp. Disposed F 3,209 $87.60 $281.09K 34,461 Direct
27 Feb, 2026 Justin S Forsberg Svp/Chief Financial Officer Disposed F 520 $80.02 $41.60K 6,862 Direct
27 Feb, 2026 Randall P. Gabe Svp/Chief Administrative Ofc Disposed F 2,172 $80.02 $173.79K 24,153 Direct
27 Feb, 2026 Amy L. Timperley Svp/Chief Reg. Public Aff. Disposed F 1,182 $80.02 $94.61K 15,118 Direct
27 Feb, 2026 Julie M. Williams Svp/Cont. Improvement And Opt. Disposed F 3,473 $80.02 $277.88K 28,950 Direct
27 Feb, 2026 Justin L Brown President/Southwest Gas Corp. Disposed F 6,838 $80.02 $547.19K 27,623 Direct
19 Feb, 2026 Henry P Linginfelter Director Acquired A 1,726 $0.00 $0 10,046 Direct
19 Feb, 2026 Andrew W Evans Director Acquired A 1,726 $0.00 $0 10,046 Direct
19 Feb, 2026 Carlos Ruisanchez Director Acquired A 1,726 $0.00 $0 10,693 Direct
19 Feb, 2026 Anne L Mariucci Director Acquired A 1,726 $0.00 $0 50,100 Direct
19 Feb, 2026 Amy L. Timperley Svp/Chief Reg. Public Aff. Acquired A 2,824 $0.00 $0 11,978 Direct
19 Feb, 2026 Leslie T Thornton Director Acquired A 1,726 $0.00 $0 17,201 Direct
19 Feb, 2026 Karen S Haller President And Ceo Acquired A 16,756 $0.00 $0 165,599 Direct
19 Feb, 2026 E Renae Conley Director Acquired A 2,588 $0.00 $0 12,282 Direct
19 Feb, 2026 Julie M. Williams Svp/Cont. Improvement And Opt. Acquired A 2,994 $0.00 $0 23,598 Direct