Filing Flows › Companies › Diamondback Energy › Timeline
Diamondback Energy stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+30.3% to $178.96
Diamondback Energy (FANG) stock rose 30% over the last 252 sessions, to $178.96. On the way it reported 4 quarters, its insiders filed 11 open-market trades and 11 Form 144 notices of planned sales, and the company filed 4 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 2, 2026 | Earnings | Earnings: beat the EPS estimate by 4.6% | −6.0% (−5.5% vs SPY) | −17.0% (−14.2% vs SPY) | — |
| Oct 5, 2026 | Form 144 | Form 144: Charles A. Meloy plans to sell $6.1M | −0.3% (−1.0% vs SPY) | +3.9% (+2.8% vs SPY) | +7.8% (+10.1% vs SPY) |
| Sep 30, 2026 | 8-K | Material definitive agreement | +0.9% (+0.7% vs SPY) | +0.3% (−1.6% vs SPY) | +11.6% (+10.7% vs SPY) |
| Sep 16, 2026 | Form 144 | Form 144: SGF Fang Holdings, LP plans to sell $1.9B | −8.4% (−7.9% vs SPY) | −13.7% (−16.0% vs SPY) | −6.8% (−8.7% vs SPY) |
| Sep 16, 2026 | Insider sale | SGF Fang Holdings, LP sold $1.9B | −8.4% (−7.9% vs SPY) | −13.7% (−16.0% vs SPY) | −6.8% (−8.7% vs SPY) |
| Sep 16, 2026 | Insider sale | Greth Lyndal sold $1.9B | −8.4% (−7.9% vs SPY) | −13.7% (−16.0% vs SPY) | −6.8% (−8.7% vs SPY) |
| Sep 15, 2026 | Form 144 | Form 144: Matt Zmigrosky plans to sell $282K | +2.8% (+3.2% vs SPY) | −8.3% (−10.2% vs SPY) | −3.7% (−6.2% vs SPY) |
| Sep 15, 2026 | Form 144 | Form 144: Teresa L. Dick plans to sell $1.1M | +2.8% (+3.2% vs SPY) | −8.3% (−10.2% vs SPY) | −3.7% (−6.2% vs SPY) |
| Sep 15, 2026 | Insider sale | Zmigrosky Matt sold $282K | +2.8% (+3.2% vs SPY) | −8.3% (−10.2% vs SPY) | −3.7% (−6.2% vs SPY) |
| Sep 15, 2026 | Insider sale | Dick Teresa L. sold $1.1M | +2.8% (+3.2% vs SPY) | −8.3% (−10.2% vs SPY) | −3.7% (−6.2% vs SPY) |
| Sep 11, 2026 | Form 144 | Form 144: Travis D. Stice plans to sell $15.3M | −0.2% (−1.0% vs SPY) | −4.2% (−4.8% vs SPY) | −6.7% (−9.6% vs SPY) |
| Sep 11, 2026 | Insider sale | Stice Travis D. sold $15.3M | −0.2% (−1.0% vs SPY) | −4.2% (−4.8% vs SPY) | −6.7% (−9.6% vs SPY) |
| Aug 21, 2026 | Form 144 | Form 144: Mark Lawrence Plaumann plans to sell $211K | −0.1% (−0.6% vs SPY) | −5.1% (−6.2% vs SPY) | −10.9% (−12.5% vs SPY) |
| Aug 21, 2026 | Insider sale | Plaumann Mark Lawrence sold $211K | −0.1% (−0.6% vs SPY) | −5.1% (−6.2% vs SPY) | −10.9% (−12.5% vs SPY) |
| Aug 20, 2026 | Form 144 | Form 144: Daniel N Wesson plans to sell $1.6M | +1.2% (+2.0% vs SPY) | −4.3% (−3.9% vs SPY) | −8.0% (−7.3% vs SPY) |
| Aug 20, 2026 | Form 144 | Form 144: Matthew Kaes Van't Hof plans to sell $2.1M | +1.2% (+2.0% vs SPY) | −4.3% (−3.9% vs SPY) | −8.0% (−7.3% vs SPY) |
| Aug 20, 2026 | Insider sale | Wesson Daniel N sold $1.6M | +1.2% (+2.0% vs SPY) | −4.3% (−3.9% vs SPY) | −8.0% (−7.3% vs SPY) |
| Aug 20, 2026 | Insider sale | Van't Hof Matthew Kaes sold $2.1M | +1.2% (+2.0% vs SPY) | −4.3% (−3.9% vs SPY) | −8.0% (−7.3% vs SPY) |
| Aug 14, 2026 | Form 144 | Form 144: Matt Zmigrosky plans to sell $507K | +1.5% (+1.7% vs SPY) | +5.6% (+7.6% vs SPY) | +3.1% (+5.3% vs SPY) |
| Aug 14, 2026 | Form 144 | Form 144: Jere W Thompson III plans to sell $102K | +1.5% (+1.7% vs SPY) | +5.6% (+7.6% vs SPY) | +3.1% (+5.3% vs SPY) |
| Aug 14, 2026 | Insider sale | Zmigrosky Matt sold $507K | +1.5% (+1.7% vs SPY) | +5.6% (+7.6% vs SPY) | +3.1% (+5.3% vs SPY) |
| Aug 14, 2026 | Insider sale | Thompson Jere W III sold $102K | +1.5% (+1.7% vs SPY) | +5.6% (+7.6% vs SPY) | +3.1% (+5.3% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Matthew Kaes Van't Hof plans to sell $1.0M | +1.4% (+1.7% vs SPY) | +4.2% (+4.2% vs SPY) | +2.4% (+3.8% vs SPY) |
| Aug 11, 2026 | Insider sale | Van't Hof Matthew Kaes sold $1.0M | +1.4% (+1.7% vs SPY) | +4.2% (+4.2% vs SPY) | +2.4% (+3.8% vs SPY) |
| Aug 3, 2026 | Earnings | Earnings: beat the EPS estimate by 8.3% | −2.1% (−3.5% vs SPY) | −7.6% (−11.1% vs SPY) | −0.7% (−3.3% vs SPY) |
| Jun 15, 2026 | 8-K | Material definitive agreement | −1.0% (−0.4% vs SPY) | −1.1% (+1.5% vs SPY) | +0.1% (+0.4% vs SPY) |
| May 20, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.7% (−1.9% vs SPY) | −5.1% (−6.9% vs SPY) | −8.4% (−9.1% vs SPY) |
| May 4, 2026 | Earnings | Earnings: beat the EPS estimate by 12.8% | +2.9% (+3.2% vs SPY) | −9.6% (−11.9% vs SPY) | −2.0% (−7.3% vs SPY) |
| Mar 12, 2026 | 8-K | Material definitive agreement | +3.0% (+3.5% vs SPY) | +7.2% (+8.2% vs SPY) | +6.6% (+3.4% vs SPY) |
| Feb 23, 2026 | Earnings | Earnings: missed the EPS estimate by -13.2% | −1.3% (−0.2% vs SPY) | −1.1% (−0.6% vs SPY) | +9.2% (+14.0% vs SPY) |
Insiders’ record here
In the year on the chart, Diamondback Energy's insiders reported 0 open-market buys ($0) and 11 sales ($3.7B).
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Diamondback Energy: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.