Southwest Gas Holdings, Inc. (SWX) Ownership
SWX ownership summary
as of October 18, 2026- Institutions
- 95.4% of shares outstanding
- Insiders
- 0.61% of shares outstanding
- Shares outstanding
- 72.4M
- Float
- 72.0M shares available to trade
- Short interest
- 5.18% 2.9M shares short
- Days to cover
- 3.68 short interest up 49.7% vs prior month
- Institutions 95.39%
- Insiders 0.61%
- Other investors 4.00%
SWX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 15.43% | 11.2M | $977.8M | +434,070 (+4.0%) | June 30, 2026 |
| 2 | FMR Inc | 7.70% | 5.6M | $487.5M | +413,169 (+8.0%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 5.48% | 4.0M | $347.5M | +117,743 (+3.1%) | June 30, 2026 |
| 4 | Corvex Management LP | 4.43% | 3.2M | $280.6M | −1.1M (−25.7%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 4.21% | 3.0M | $266.5M | +39,317 (+1.3%) | June 30, 2026 |
| 6 | State Street Corp | 3.60% | 2.6M | $228.0M | +185,646 (+7.7%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 2.88% | 2.1M | $182.5M | +378,958 (+22.2%) | June 30, 2026 |
| 8 | Maverick Capital Ltd | 2.61% | 1.9M | $165.2M | −237,369 (−11.2%) | June 30, 2026 |
| 9 | AQR Capital Management LLC | 2.21% | 1.6M | $140.2M | +439,708 (+37.8%) | June 30, 2026 |
| 10 | Adage Capital Partners Gp LLC | 1.87% | 1.4M | $118.5M | −120,483 (−8.2%) | June 30, 2026 |
| 11 | T. Rowe Price Investment Management,Inc. | 1.57% | 1.1M | $99.7M | +105,627 (+10.2%) | June 30, 2026 |
| 12 | Channing Capital Management, LLC | 1.48% | 1.1M | $94.0M | −31,963 (−2.9%) | June 30, 2026 |
| 13 | Dimensional Fund Advisors, Inc. | 1.46% | 1.1M | $92.6M | +4,033 (+0.4%) | June 30, 2026 |
| 14 | Principal Financial Group Inc | 1.36% | 986K | $86.2M | −85,932 (−8.0%) | June 30, 2026 |
| 15 | Gabelli Funds LLC | 1.31% | 951K | $83.2M | −15,246 (−1.6%) | June 30, 2026 |
| 16 | NORGES BANK | 1.31% | 948K | $82.9M | +111,677 (+13.4%) | June 30, 2026 |
| 17 | Northern Trust Corp | 1.23% | 892K | $78.0M | +98,136 (+12.4%) | June 30, 2026 |
| 18 | The Goldman Sachs Group Inc | 1.20% | 870K | $76.0M | +173,960 (+25.0%) | June 30, 2026 |
| 19 | River Road Asset Management, LLC | 1.19% | 865K | $75.7M | −38,508 (−4.3%) | June 30, 2026 |
| 20 | Bank of New York Mellon Corp | 1.16% | 838K | $73.3M | −8,133 (−1.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 2.5M shares and 8 cut 1.6M.
SWX top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.56% | 2.6M | $225.7M | −924 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.02% | 2.2M | $191.2M | −2,063 (−0.1%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 2.66% | 1.9M | $168.7M | −16,994 (−0.9%) | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 2.18% | 1.6M | $138.3M | +2,297 (+0.1%) | August 31, 2026 |
| 5 | iShares Select Dividend ETF | 1.74% | 1.3M | $110.1M | −432 (−0.0%) | September 30, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.39% | 1.0M | $87.8M | +757 (+0.1%) | August 31, 2026 |
| 7 | Fidelity Small Cap Value Fund | 1.35% | 981K | $85.8M | +267,026 (+37.4%) | July 31, 2026 |
| 8 | Fidelity VIP Mid Cap Initial | 1.24% | 900K | $78.7M | — | August 31, 2026 |
| 9 | Fidelity Small Cap Index | 1.11% | 807K | $70.6M | +6,228 (+0.8%) | July 31, 2026 |
| 10 | Fidelity Stock Selector Small Cap | 0.99% | 715K | $62.5M | — | July 31, 2026 |
| 11 | iShares Russell 2000 Value ETF | 0.96% | 698K | $61.1M | +1,060 (+0.2%) | September 30, 2026 |
| 12 | Undiscovered Managers Behavioral Val L | 0.86% | 624K | $54.6M | −13,800 (−2.2%) | August 31, 2026 |
| 13 | Gabelli Utilities AAA | 0.82% | 597K | $52.2M | −7,000 (−1.2%) | June 30, 2026 |
| 14 | T. Rowe Price Small-Cap Value | 0.80% | 580K | $50.7M | −16,607 (−2.8%) | August 31, 2026 |
| 15 | Fidelity Series Small Cap Opps | 0.68% | 493K | $43.1M | — | July 31, 2026 |
| 16 | Nomura Small Cap Value A | 0.65% | 473K | $41.4M | — | August 31, 2026 |
| 17 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.65% | 471K | $41.2M | −5,309 (−1.1%) | August 31, 2026 |
| 18 | Vanguard Utilities ETF | 0.64% | 461K | $40.3M | +37,743 (+8.9%) | August 31, 2026 |
| 19 | Vanguard Russell 2000 ETF | 0.59% | 425K | $37.1M | +9,943 (+2.4%) | August 31, 2026 |
| 20 | Fidelity Equity-Income | 0.56% | 407K | $35.6M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
SWX insider transactions
latest 2| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-25 | Carl C Icahn | Sell | $77.91 | 1,500,000 | $116.9M |
| 2025-09-10 | Brian E Sandoval | Buy | $78.57 | 24 | $1,886 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
SWX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns SWX
Institutional investors own 95.4% of Southwest Gas's shares and insiders 0.61%. The largest holder is BlackRock Inc with 15.43% of the shares (11.2M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 5.18% of the float, or 3.68 days of average trading volume. The share count rose 54.4% since 2014.
Related: SWX analyst forecast, SWX key metrics, SWX dividend history. See the SWX stock overview for the latest quote and news.
SWX ownership FAQ
Who owns the most Southwest Gas stock?
The largest shareholders of Southwest Gas are BlackRock Inc (15.43%), FMR Inc (7.70%), Vanguard Portfolio Management, LLC (5.48%), Corvex Management LP (4.43%), Vanguard Capital Management, LLC (4.21%).
What percentage of Southwest Gas is owned by institutions?
Institutions hold 95.4% of Southwest Gas's shares outstanding; insiders hold 0.61%.
Which funds own Southwest Gas?
The largest fund holders of Southwest Gas are iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.02%), iShares Russell 2000 ETF (2.66%), Vanguard Small Cap Index (2.18%), iShares Select Dividend ETF (1.74%).
What is Southwest Gas's short interest?
2.9M shares of Southwest Gas were sold short, 5.18% of the float; at the average daily volume it would take 3.68 days to cover.
Are insiders buying or selling Southwest Gas?
Of the latest 2 reported insider transactions in Southwest Gas (since September 10, 2025), 1 were purchases and 1 were sales.
How many shares of Southwest Gas are outstanding?
Southwest Gas has 72.4M shares outstanding, of which 72.0M are in the public float.