Updated Jul 16, 2026 · Last SEC filing 2026-06-18
Diamondback Energy, Inc. (FANG) has filed 27 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-18. 4 Form 8-K material event filings were reported by FANG in the last 90 days. 11 Form 144 notices of proposed sale were filed for FANG stock. InsiderAlpha tracks every FANG SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001539838 |
|---|
| Form 4 filings (90d) | 27 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 11 |
| Latest Form 4 filing | 2026-06-18 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Van't Hof Matthew Kaes | Chief Executive Officer | G — Bona-fide gift | 2.7K | $0.00 | — | SEC | |
| Meloy Charles Alvin | Director | S — Open-market sale | 64.7K | $187.25 | $12.12M | SEC | |
| Meloy Charles Alvin | Director | S — Open-market sale | 4.0K | $187.68 | $760K | SEC | |
| Meloy Charles Alvin | Director | S — Open-market sale | 14.5K | $186.37 | $2.71M | SEC | |
| Plaumann Mark Lawrence | Director | S — Open-market sale | 500 | $196.50 | $98K | SEC | |
| SGF FANG Holdings, LP | Insider | S — Open-market sale | 10.00M | $204.25 | $2.04B | SEC | |
| Dick Teresa L. | CAO, Exec. VP, Assist. Sec. | S — Open-market sale | 5.0K | $205.00 | $1.02M | SEC | |
| Van't Hof Matthew Kaes | Chief Executive Officer | S — Open-market sale | 10.0K | $210.00 | $2.10M | SEC | |
| Van't Hof Matthew Kaes | Chief Executive Officer | S — Open-market sale | 5.0K | $205.00 | $1.02M | SEC | |
| Zmigrosky Matt | EVP, Chief Legal and Admin Off | S — Open-market sale | 5.0K | $210.00 | $1.05M | SEC | |
| Dick Teresa L. | CAO, Exec. VP, Assist. Sec. | S — Open-market sale | 7.0K | $200.90 | $1.41M | SEC | |
| Zmigrosky Matt | EVP, Chief Legal and Admin Off | S — Open-market sale | 5.0K | $200.54 | $1.00M | SEC | |
| Mains Stephanie K. | Director | A — Grant or award | 982 | $0.00 | — | SEC | |
| KLEIN REBECCA A | Director | A — Grant or award | 982 | $0.00 | — | SEC | |
| REEVES ROBERT K | Director | A — Grant or award | 982 | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Diamondback Energy, Inc. (FANG). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Meloy Charles Alvin | 11 | $18.57M |
| Dick Teresa L. | 4 | $4.47M |
| Zmigrosky Matt | 3 | $3.05M |
| Van't Hof Matthew Kaes | 3 | $3.12M |
| Plaumann Mark Lawrence | 2 | $98K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in FANG insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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