SEC Form 4
Southwest Gas Holdings, Inc. (SWX) insider trading
In the 12 months to Oct 26, 2026, 2 SWX insiders reported open-market sales of $450.0K across 2 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $450.0K
- 2 filings · 2 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 1 of 2
- $245.5K of $450.0K sold (55%)
Who traded SWX, and when
- Sale
- Sale, pre-arranged (10b5-1)
SWX daily close from Oct 27, 2025 to Oct 26, 2026, between $78.83 and $94.05, last $92.31. 2 sale and 0 purchase filings by 2 insiders, marked at their filing dates. Justin L. Brown, President/Southwest Gas Corp.: sold $245.5K across 1 filing, first filed Jan 13, 2026, last Jan 13, 2026. Julie M. Williams, SVP/Cont. Improvement and Opt.: sold $204.5K across 1 filing, first filed Sep 29, 2026, last Sep 29, 2026.
Largest mark · tap a row for others
Justin L. Brown · President/Southwest Gas Corp.
Sale $245,510
3,028 shares at $81.08 avg
Filed Jan 13, 2026 · traded Jan 9
Pre-arranged (10b5-1) · close on filing date $81.96
Justin L. Brown · President/Southwest Gas Corp.
President/Southwest Gas Corp.
$245.5K soldJulie M. Williams · SVP/Cont. Improvement and Opt.
SVP/Cont. Improvement and Opt.
$204.5K soldOpen-market trades
2 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Justin L. Brown | President/Southwest Gas Corp. | $245.5K | — | 1 | 100% of sales | |
| Julie M. Williams | SVP/Cont. Improvement and Opt. | $204.5K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Julie M. Williams SVP/Cont. Improvement and Opt. | Sale | 2,500 | $81.81 | $204.5K | 26,450 | |
traded | Justin L. Brown President/Southwest Gas Corp. | SalePre-arranged (10b5-1) | 3,028 | $81.08 | $245.5K | 6,320 |
GET /stocks/filings/vX/form-4?tickers=SWX&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"SWX"
],
"issuer_cik": "0001692115",
"owner_cik": "0001932678",
"accession_number": "0001932678-26-000002",
"form_type": "4",
"filing_date": "2026-09-29",
"period_of_report": "2026-09-28",
"issuer_name": "Southwest Gas Holdings, Inc.",
"issuer_trading_symbol": "SWX",
"owner_name": "Williams Julie M.",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "SVP/Cont. Improvement and Opt.",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-28",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 2500,
"transaction_price_per_share": 81.8074,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 26449.801,
"transaction_value": 204518.5,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.80 to $81.86, inclusive. The reporting person undertakes to provide to Southwest Gas Holdings Inc., any security holder of Southwest Gas Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4."
}
]
},
{
"tickers": [
"SWX"
],
"issuer_cik": "0001692115",
"owner_cik": "0001740097",
"accession_number": "0001740097-26-000002",
"form_type": "4",
"filing_date": "2026-01-13",
"period_of_report": "2026-01-09",
"issuer_name": "Southwest Gas Holdings, Inc.",
"issuer_trading_symbol": "SWX",
"owner_name": "Brown Justin L",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President/Southwest Gas Corp.",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-01-09",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 3028,
"transaction_price_per_share": 81.08,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 6320.344,
"transaction_value": 245510.24,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction is pursuant to a 10b5-1 Plan adopted on 09/10/2025."
},
{
"id": "F2",
"description": "Balance includes 4.987 shares acquired through exempt dividend reinvestment transactions."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 44 records
- Tax withholding17 records
- Grants and awards27 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has Southwest Gas Holdings, Inc.'s CEO sold stock?
No. Karen S. Haller (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is SWX’s insider data?
These are SWX Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
Build with AI
Track SWX insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SWX every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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