360 tracked 13F filers disclose a position in SWX as of the latest SEC 13F filings, a combined $5.5B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $933.9M | 10.7M | ▲+4.5% Added · +465K sh | Q1 2026 | |
| 2 | FMR LLC | $448.6M | 5.2M | ▼−8.6% Reduced · −488K sh | Q1 2026 | |
| 3 | Corvex Management LP | $375.2M | 4.3M | ▼−14% Reduced · −712K sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $335.1M | 3.9M | →First observed position No prior filed position | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $261.4M | 3.0M | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $231.2M | 2.6M | ▲+7.7% Added · +186K sh | Q2 2026 | |
| 7 | MAVERICK CAPITAL LTD | $184.8M | 2.1M | ▲+3.9% Added · +79K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $185.1M | 2.1M | ▲+22% Added · +379K sh | Q2 2026 | |
| 9 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $128.2M | 1.5M | ▼−11% Reduced · −173K sh | Q1 2026 | |
| 10 | AQR CAPITAL MANAGEMENT LLC | $101.1M | 1.2M | ▲+93% Added · +560K sh | Q1 2026 | |
| 11 | Channing Capital Management, LLC | $95.3M | 1.1M | ▼−2.9% Reduced · −32K sh | Q2 2026 | |
| 12 | PRINCIPAL FINANCIAL GROUP INC | $93.1M | 1.1M | ▼−1.1% Reduced · −12K sh | Q1 2026 | |
| 13 | DIMENSIONAL FUND ADVISORS LP | $91.7M | 1.1M | ▼−0.6% Reduced · −6K sh | Q1 2026 | |
| 14 | T. Rowe Price Investment Management, Inc. | Withheld | 1.0M | ▲+6.8% Added · +66K sh | Q1 2026 | |
| 15 | GABELLI FUNDS LLC | $84.0M | 966K | ▼−4.8% Reduced · −48K sh | Q1 2026 | |
| 16 | River Road Asset Management, LLC | $78.5M | 904K | ▼−2.5% Reduced · −24K sh | Q1 2026 | |
| 17 | Bank of New York Mellon Corp | $73.5M | 846K | ▲+11% Added · +86K sh | Q1 2026 | |
| 18 | NORGES BANK | $66.9M | 836K | ▼−1.8% Reduced · −15K sh | Q4 2025 | |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $72.5M | 834K | ▼−6.5% Reduced · −58K sh | Q1 2026 | |
| 20 | FULLER & THALER ASSET MANAGEMENT, INC. | $71.0M | 801K | ▼−3.5% Reduced · −29K sh | Q2 2026 | |
| 21 | NORTHERN TRUST CORP | $69.0M | 794K | ▲+6.8% Added · +51K sh | Q1 2026 | |
| 22 | GAMCO INVESTORS, INC. ET AL | $68.0M | 783K | ▼−4.5% Reduced · −36K sh | Q1 2026 | |
| 23 | BROOKFIELD Corp /ON/ | $60.8M | 700K | ▲+107% Added · +362K sh | Q1 2026 | |
| 24 | GOLDMAN SACHS GROUP INC | $60.4M | 696K | ▲+49% Added · +229K sh | Q1 2026 | |
| 25 | MORGAN STANLEY | $58.3M | 670K | ▲+46% Added · +212K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 10 funds opened a new position in SWX and 26 added to an existing one, while 21 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 199 funds | $245.4B |
| NVIDIA CORPNVDA | 195 funds | $353.4B |
| AMAZON.COM INCAMZN | 194 funds | $181.9B |
| META PLATFORMS INC-CLASS AMETA | 192 funds | $97.4B |
| ELI LILLY & COLLY | 189 funds | $66.5B |
| BROADCOM INCAVGO | 188 funds | $139.5B |
| ALPHABET INC-CL CGOOG | 188 funds | $113.6B |
| APPLE INCAAPL | 186 funds | $262.3B |
| CHEVRON CORPCVX | 186 funds | $27.4B |
| ALPHABET INC-CL AGOOGL | 184 funds | $141.2B |
| MICRON TECHNOLOGY INCMU | 184 funds | $36.3B |
| JPMORGAN CHASE & COJPM | 182 funds | $55.2B |
Ranked by how many of SWX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jan 9, 2026 | Brown Justin L | President/Southwest Gas Corp. | Sell (S) | 3K | $246K |
| Sep 25, 2025 | ICAHN CARL C | 10% Owner | Sell (S) | 1.5M | $116.9M |
| Sep 10, 2025 | Sandoval Brian E | Director | Buy (P) | 24 | $2K |
| Jun 27, 2025 | Stefani Robert J | SVP/CFO/Controller | Sell (S) | 7K | $525K |
| Mar 28, 2025 | Stefani Robert J | SVP/Chief Financial Officer | Sell (S) | 2K | $145K |
| Mar 24, 2025 | ICAHN CARL C | 10% Owner | Sell (S) | 2.1M | $156.7M |
| Nov 19, 2024 | ICAHN PARTNERS LP | 10% Owner | Sell (S) | 1.4M | $106.7M |
| Aug 27, 2024 | Stefani Robert J | SVP/Chief Financial Officer | Sell (S) | 10K | $743K |
| Aug 26, 2024 | Stefani Robert J | SVP/Chief Financial Officer | Sell (S) | 767 | $56K |
| May 13, 2024 | Brown Justin L | President/Southwest Gas Corp. | Sell (S) | 3K | $201K |
| Dec 27, 2023 | Daily Paul M | CEO/Centuri Group, Inc. | Sell (S) | 1K | $64K |
| Sep 27, 2023 | ICAHN CARL C | 10% Owner | Buy (P) | 1K | $87K |
Connected entities for SWX
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/SWX/capital-change-brief"
Use Arkolith's capital_change_brief for SWX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for SWX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.