SEC Form 4
MATADOR RESOURCES COMPANY (MTDR) insider trading
In the 12 months to Oct 24, 2026, 9 MTDR insiders reported open-market purchases of $1.0M across 15 filings; no open-market sales were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $0
- 0 filings · 0 insiders
- Open-market purchases
- $1.0M
- 15 filings
Who traded MTDR, and when
- Purchase
MTDR daily close from Oct 24, 2025 to Oct 23, 2026, between $37.19 and $65.45, last $59.96. 0 sale and 15 purchase filings by 9 insiders, marked at their filing dates. Christopher P. Calvert, EVP and COO → EVP and CFO: bought $320.1K across 3 filings, first filed Nov 5, 2025, last Aug 31, 2026. Shelley F. Appel, Director: bought $286.9K across 2 filings, first filed Nov 3, 2025, last Nov 6, 2025. Susan M. Ward, Director: bought $195.2K across 1 filing, first filed Nov 5, 2025, last Nov 5, 2025. Robert T. Macalik, EVP, Chief Financial Officer: bought $98.3K across 2 filings, first filed Nov 4, 2025, last Nov 10, 2025. Robert Gaines Baty, Director: bought $45.5K across 2 filings, first filed Nov 4, 2025, last Jun 17, 2026. Monika U. Ehrman, Director: bought $35.0K across 2 filings, first filed Mar 10, 2026, last Jun 10, 2026. Paul W. Harvey, Director: bought $32.2K across 1 filing, first filed Nov 3, 2025, last Nov 3, 2025. Reynald Baribault, Director: bought $15.4K across 1 filing, first filed Nov 6, 2025, last Nov 6, 2025. Benjamin T. Colodney, SVP & Chief Accounting Officer: bought $13.4K across 1 filing, first filed Jun 2, 2026, last Jun 2, 2026.
Largest mark · tap a row for others
Shelley F. Appel · Director
Filing 1 of 2 within a week · $286,897 total
Purchase $178,149
4,485 shares at $39.72 avg
Filed Nov 3, 2025 · traded Oct 30
Close on filing date $39.26
Christopher P. Calvert · EVP and COO → EVP and CFO
EVP and COO → EVP and CFO
$320.1K boughtShelley F. Appel · Director
Director
$286.9K boughtSusan M. Ward · Director
Director
$195.2K boughtRobert T. Macalik · EVP, Chief Financial Officer
EVP, Chief Financial Officer
$98.3K boughtRobert Gaines Baty · Director
Director
$45.5K boughtMonika U. Ehrman · Director
Director
$35.0K boughtPaul W. Harvey · Director
Director
$32.2K boughtReynald Baribault · Director
Director
$15.4K boughtBenjamin T. Colodney · SVP & Chief Accounting Officer
SVP & Chief Accounting Officer
$13.4K boughtHas MATADOR RESOURCES COMPANY's CEO sold stock?
No. Joseph Wm Foran (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
15 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Christopher P. Calvert | EVP and COO → EVP and CFO | — | $320.1K | 3 | — | |
| Shelley F. Appel | Director | — | $286.9K | 2 | — | |
| Susan M. Ward | Director | — | $195.2K | 1 | — | |
| Robert T. Macalik | EVP, Chief Financial Officer | — | $98.3K | 2 | — | |
| Robert Gaines Baty | Director | — | $45.5K | 2 | — | |
| Monika U. Ehrman | Director | — | $35.0K | 2 | — | |
| Paul W. Harvey | Director | — | $32.2K | 1 | — | |
| Reynald Baribault | Director | — | $15.4K | 1 | — | |
| Benjamin T. Colodney | SVP & Chief Accounting Officer | — | $13.4K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Christopher P. Calvert EVP and CFO | Purchase | 2,500 | $56.64 | $141.6K | 44,000 | |
traded | Robert Gaines Baty Director | Purchase | 500 | $51.44 | $25.7K | 77,538 | |
traded | Monika U. Ehrman Director | Purchase | 362 | $55.28 | $20.0K | 41,825 | |
traded | Christopher P. Calvert EVP and CFO | Purchase | 1,500 | $53.24 | $79.9K | 41,500 | |
traded | Benjamin T. Colodney SVP & Chief Accounting Officer | Purchase | 250 | $53.41 | $13.4K | 2,650 | |
traded | Monika U. Ehrman Director | Purchase | 267 | $56.29 | $15.0K | 41,463 | |
traded | Robert T. Macalik EVP, Chief Financial Officer | Purchase | 1,500 | $38.25 | $57.4K | 35,039 | |
traded | Reynald Baribault Director | Purchase | 400 | $38.49 | $15.4K | 6,915 | |
traded | Shelley F. Appel Director | Purchase | 2,880 | $37.76 | $108.7K | Multiple accounts | |
traded | Susan M. Ward Director | Purchase | 5,000 | $39.04 | $195.2K | 14,923 | |
traded | Christopher P. Calvert EVP and COO | Purchase | 2,500 | $39.44 | $98.6K | 40,000 | |
traded | Robert T. Macalik EVP, Chief Financial Officer | Purchase | 1,039 | $39.40 | $40.9K | 33,539 | |
traded | Robert Gaines Baty Director | Purchase | 500 | $39.51 | $19.8K | 73,396 | |
traded | Shelley F. Appel Director | Purchase | 4,485 | $39.72 | $178.1K | Multiple accounts | |
traded | Paul W. Harvey Director | Purchase | 800 | $40.30 | $32.2K | 15,767 |
GET /stocks/filings/vX/form-4?tickers=MTDR&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"MTDR"
],
"issuer_cik": "0001520006",
"owner_cik": "0002020286",
"accession_number": "0002020286-26-000008",
"form_type": "4",
"filing_date": "2026-08-31",
"period_of_report": "2026-08-27",
"issuer_name": "Matador Resources Co",
"issuer_trading_symbol": "MTDR",
"owner_name": "Calvert Christopher P",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "EVP and CFO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-27",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 2500,
"transaction_price_per_share": 56.64,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 44000,
"transaction_value": 141600,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "Represents shares held of record by the reporting person's 401(k) account"
},
{
"tickers": [
"MTDR"
],
"issuer_cik": "0001520006",
"owner_cik": "0001688490",
"accession_number": "0001688490-26-000006",
"form_type": "4",
"filing_date": "2026-06-17",
"period_of_report": "2026-06-15",
"issuer_name": "Matador Resources Co",
"issuer_trading_symbol": "MTDR",
"owner_name": "Baty Robert Gaines",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-15",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 500,
"transaction_price_per_share": 51.44,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 77538,
"transaction_value": 25720,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// 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) · 59 records
- Tax withholding17 records
- Grants and awards17 records
- Gifts1 record
- Employee stock purchase plan24 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
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 MTDR 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.
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.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.