Latest filingAug 31, 2026Most recent Form 4
MTDR
Matador Resources Co
NYSEEnergyCrude Petroleum & Natural Gas
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$19.3M3 buys
Total selling$00 sells
Net open-market+$19.3M2 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period3transactions
- P · Open-market buys · dominant3 · 100%
Activity by reported role
A joint filing can contribute to multiple roles3transactions
- CHAIR · dominant2 · 67%
- EC1 · 33%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (2)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeForan Joseph WmCommon Stock · Direct
4,772Aug 26, 2026
Calvert Christopher PCommon Stock · Indirect · Represents shares held of record by the reporting person's 401(k) account
44,000Aug 27, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- CP+$141.6k
- FW+$21.5k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
MTDR transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| MTDR | Calvert Christopher P | EC | buy | 2.50k | $14.1M | P | 0.0% | 08/31 | 08/27 | |
| MTDR | Foran Joseph Wm | CHAIR | buy | 400 | $2.14M | P | +2.1% | 08/19 | 08/17 |
Matador Resources Co Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Matador Resources Co?
Calvert Christopher P, Foran Joseph Wm.
When was the latest reported open-market purchase?
Calvert Christopher P reported a buy on Aug 27, 2026 valued at $14.1M. Read the SEC filing.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
Net open-market buying in the selected period was $193,297.95. This describes filed transactions, not a bullish rating.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.