Diamondback Energy, Inc.
CIK 1539838 · View on SEC EDGAR ↗
First SEC filing: March 23, 2026 · Latest: March 23, 2026
On this page
- Biography Career background and public profile, where available.
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
Diamondback Energy, headquartered in Midland, Texas, is an American company engaged in hydrocarbon exploration in the Permian Basin.
Read more
Diamondback Energy, headquartered in Midland, Texas, is an American company engaged in hydrocarbon exploration in the Permian Basin.
As of December 31, 2024, the company had 3,557 million barrels of oil equivalent (2.176×1010 GJ) of estimated proved reserves, of which 49% was petroleum, 24% was natural gas, and 27% was natural gas liquids.
It is ranked 383rd on the Fortune 500 and 471st on the Forbes Global 2000.
History
The company began operations in December 2007 with the acquisition of 4,174 net acres in the Permian Basin.
In October 2012, the company became a public company via an initial public offering, issuing 12,500,000 shares of common stock at a price of $17.50 per share at its opening on Nasdaq under the ticker symbol FANG, in reference to a snake's tooth; the company's logo at the time featured a Western diamondback rattlesnake.
In March 2017, the company acquired assets from Brigham Resources for $2.55 billion.
In October 2018, the company acquired the assets of Ajax Resources for $1.25 billion.
In November 2018, the company acquired Energen.
In February 2021, the company acquired leasehold interests and assets from Guidon Resources for $375 million in cash and 10.68 million shares.
In March 2021, the company acquired QEP Resources.
In September 2024, the company acquired Endeavor Energy Resources.
In April 2025, the company acquired Double Eagle IV for $3 billion in cash and 6.9 million shares of stock.
Controversies
Environmental
In October 2023, the company was accused of being a major contributor to the increase of flaring gas in the Permian Basin.
Antitrust lawsuit
In January 2024, a class action lawsuit was filed accusing Diamondback, along with seven other US oil and gas producers, of an illegal price fixing scheme to constrain production of shale oil, allegedly causing drivers in the US paying more for gasoline than they would have in a competitive market. The case is now part of a consolidated multidistrict litigation in New Mexico to be heard by judge Matthew L. Garcia.
Source: Wikipedia, CC BY-SA 4.0 · View on Wikipedia ↗
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 19, 2026 | FANG | S | 510,071 | $45.69 | $23,305,144 | 510,071 Direct | -50.00% | Disposed | 363.1% (price as of 2026-08-21) |
| March 4, 2026 | FANG | S | 12,391,304 | $45.69 | $566,158,680 | 12,391,304 Direct | -50.00% | Disposed | 363.1% (price as of 2026-08-21) |
| March 8, 2024 | FANG | S | 13,225,000 | $34.12 | $451,237,000 | 0 Direct | -100.00% | Disposed | 520.1% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 19, 2026 | FANG | Operating Company Units | Class A Common Stock (510,071) | — | — | 510,071 | Disposed |
| March 19, 2026 | FANG | Class B Common Stock | Class A Common Stock (510,071) | — | — | 510,071 | Disposed |
| March 4, 2026 | FANG | Operating Company Units | Class A Common Stock (12,391,304) | — | — | 12,391,304 | Disposed |
| March 4, 2026 | FANG | Class B Common Stock | Class A Common Stock (12,391,304) | — | — | 12,391,304 | Disposed |
| March 8, 2024 | FANG | Operating Company Units | Class A Common Stock [F6] (5,278,493) | — | — | 5,278,493 | Disposed |
| March 8, 2024 | FANG | Class B Common Stock | Class A Common Stock [F6] (5,278,493) | — | — | 5,278,493 | Disposed |
| Oct. 31, 2023 | FANG | Put Option (obligation to buy) | Common Units (7,215,007) | $27.72 | Nov. 1, 2023 | 7,215,007 | Disposed |
| Sept. 4, 2023 | FANG | Put Option (obligation to buy) | Common Units (7,215,007) | $27.72 | Nov. 1, 2023 | 7,215,007 | Disposed |
| Oct. 1, 2019 | FANG | Class B Units | Common Units (82,643,418) | — | — | 10,224,918 | Acquired |
| Oct. 1, 2019 | FANG | Operating Company Units | Common Units (73,150,000) | — | — | 8,066,528 | Acquired |
| Oct. 1, 2019 | FANG | Class B Units | Common Units (8,066,528) | — | — | 8,066,528 | Acquired |
| Oct. 1, 2019 | FANG | Operating Company Units | Common Units (82,643,418) | — | — | 10,224,918 | Acquired |
| May 10, 2018 | FANG | Operating Company Units | Common Units | — | — | 731,500 | Disposed |
| May 10, 2018 | FANG | Class B Units | Common Units | — | — | 731,500 | Disposed |
| May 10, 2018 | FANG | Operating Company Units | Common Units (73,150,000) | — | — | 73,150,000 | Acquired |
| May 10, 2018 | FANG | Class B Units | Common Units (73,150,000) | — | — | 73,150,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 19, 2025 | FANG | Class B Common Stock→ Class A Common Stock (77,364,925) | 77,364,925 | Direct |
| Aug. 19, 2025 | FANG | Operating Company Units→ Class A Common Stock (77,364,925) | 77,364,925 | Direct |
| Aug. 19, 2025 | FANG | Class B Common Stock→ Class A Common Stock (69,626,640) | 69,626,640 | Indirect |
| Aug. 19, 2025 | FANG | Operating Company Units→ Class A Common Stock (69,626,640) | 69,626,640 | Indirect |
| Aug. 19, 2025 | FANG | Class B Common Stock→ Class A Common Stock (8,066,528) | 8,066,528 | Indirect |
| Aug. 19, 2025 | FANG | Operating Company Units→ Class A Common Stock (8,066,528) | 8,066,528 | Indirect |
| June 17, 2014 | FANG | Common units representing limited partner interests | 0 | Direct |