Southwest Gas Holdings, Inc.
SWX- Exchange
- NYSE
- Industry
- Natural Gas Transmisison & Distribution
- SEC CIK
- 0001692115
No open-market purchases or sales by Southwest Gas Holdings, Inc. insiders were filed in the last 90 days; 411 institutions reported holding it in 13F filings for Q2 2026, worth $5.98B in total; Maverick Capital is the only superinvestor holding it.
Holders of 5% or more of SWX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Southwest Gas Holdings, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| FMR LLC | 13G/A | 7.80%5.65M shares | +1.10 ppfrom 6.70% | Aug 6, 20253 filings | Feb 5, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.36%3.88M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
17 Schedule 13D and 13G filings on Southwest Gas Holdings, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 8, 20264:05 PM ET | Corvex Management LPand 1 other | 13D/A | 4.99%3.62M shares | −2.01 ppfrom 7.00%Below 5% | May 6, 2026 | SEC |
| Apr 29, 20263:06 PM ET | Vanguard Portfolio Management LLC | 13G | 5.36%3.88M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 20261:19 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 5, 20261:36 PM ET | FMR LLCand 1 other | 13G/A | 7.80%5.65M shares | +1.10 ppfrom 6.70% | Dec 31, 2025 | SEC |
| Jan 29, 20265:39 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 4.99%3.60M shares | −1.61 ppfrom 6.60%Below 5% | Jan 27, 2026 | SEC |
| Jan 21, 20265:26 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 6.60%4.76M shares | −1.76 ppfrom 8.36% | Jan 16, 2026 | SEC |
| Jan 2, 20264:35 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 8.36%6.03M shares | 0.00 ppfrom 8.36% | Dec 31, 2025 | SEC |
| Nov 26, 20254:29 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 8.36%6.03M shares | −0.02 ppfrom 8.38% | Nov 26, 2025 | SEC |
| Nov 5, 202511:44 AM ET | FMR LLCand 1 other | 13G/A | 6.70%4.80M shares | +1.70 ppfrom 5.00% | Sep 30, 2025 | SEC |
| Oct 14, 20255:00 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 8.38%6.03M shares | 0.00 ppfrom 8.38% | Oct 14, 2025 | SEC |
| Sep 26, 20255:00 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 8.38%6.03M shares | −2.11 ppfrom 10.49% | Sep 25, 2025 | SEC |
| Aug 6, 202512:14 PM ET | FMR LLCand 1 other | 13G | 5.00%3.59M shares | New | Jun 30, 2025 | SEC |
| May 28, 20256:05 PM ET | Corvex Management LPand 1 other | 13D/A | 7.00%5.03M shares | – | May 23, 2025 | SEC |
| Mar 25, 20254:45 PM ET | Icahn Carl Cand 10 othersSuperinvestorIcahn Capital | 13D/A | 10.49%7.53M shares | – | Mar 24, 2025 | SEC |
| Feb 16, 2021 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2021 | Lazard Asset Management LLC | 13GOld format | – | New | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Southwest Gas Holdings, Inc. shares.
No Form 144 notices for Southwest Gas Holdings, Inc. are on file.