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AI brief of an SEC Form 8-K · Matador Resources (MTDR)

Matador Resources Names Christopher Calvert CFO and Glenn Stetson COO, Effective April 21

Neutral Impact 4 of 5 leadership Written later

Matador Resources promoted Christopher P. Calvert to Executive Vice President and Chief Financial Officer and Glenn W. Stetson to Executive Vice President and Chief Operating Officer, both effective April 21, 2026. Robert T. Macalik ceased serving as Chief Financial Officer on April 21, 2026, and the company said his departure was not related to any financial or accounting issue or disagreement with the company.

Key points

  • Christopher P. Calvert, who joined in October 2014, becomes Executive Vice President and Chief Financial Officer, succeeding Robert T. Macalik.
  • Glenn W. Stetson, who joined in August 2014, becomes Executive Vice President and Chief Operating Officer, previously serving as Executive Vice President – Production.
  • The company stated Macalik's departure was not related to any financial or accounting issue or any disagreement with the company.
  • The announcement was made in a press release dated April 27, 2026, furnished as Exhibit 99.1.

The filing

CompanyMatador Resources (MTDR)
Form8-K, current report
Filed with the SECApr 27, 2026, 4:31 PM ET
Accession number0001520006-26-000008

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 12:59 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on April 27, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.