Summary
Updated Aug 31, 2026
William Thomas Elsener is EVP, Reservoir Engineering of Matador Resources Co (MTDR). 5 SEC Form 4 filings on record going back to 2024, most recently on 12 August 2026. Most recent open-market trade: bought $43K of MTDR on 12 August 2026. Lifetime open-market purchases: $141K. Historical track record: 3/5 stars across 3 tracked purchases.
Recent Transactions
5Every recent SEC Form 4 transaction William Thomas Elsener has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★☆☆ (3/5) |
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 67% |
| 90-day win rate | 33% |
| Avg 5-day return | -4.26% |
| Avg 30-day return | +3.02% |
| Avg 90-day return | -3.19% |
| Best 30-day return | +10.26% |
Trading Pattern
InsiderAlpha's records for William Thomas Elsener go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. The typical open-market purchase is $35K (4 buys totaling $141K). The largest single buy on record is $45K of MTDR in 2024. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William Thomas Elsener files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Joseph Wm Foran - $2.26M of MTDR open-market activity in the last 12 months
- Shelley F. Appel - $287K of MTDR open-market activity in the last 12 months
- Christopher P. Calvert - $226K of MTDR open-market activity in the last 12 months
- Susan M. Ward - $195K of MTDR open-market activity in the last 12 months
- Glenn W. Stetson - $106K of MTDR open-market activity in the last 12 months
- Robert T. Macalik - $98K of MTDR open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William Thomas Elsener?
William Thomas Elsener is a corporate insider, tracked as EVP, Reservoir Engineering of Matador Resources Co (MTDR). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William Thomas Elsener submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has William Thomas Elsener been buying or selling stock?
Recorded transactions: 4 open-market purchases ($141K) and 0 open-market sales across all tracked filings.
How accurate is William Thomas Elsener's historical track record?
Across 3 tracked purchases, William Thomas Elsener averaged +3.0% avg 30-day return with a 67% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
Where can I see all of William Thomas Elsener's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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