Diamondback Energy, Inc. has 9 Schedule 13D or 13G filings on record since 2025-08-15. 3 holders' latest filing reports 5% or more of common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Greth Lyndal | 23.2% | 64,957,047 | SCHEDULE 13D/A, 2026-09-17 | 2026-09-16 |
| Wellington Management Group LLP | 5.8% | 16,420,247 | SCHEDULE 13G, 2026-08-13 | 2026-06-30 |
| Vanguard Capital Management | 5.21% | 14,701,028 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
Purpose of Transaction (Item 4)
Greth Lyndal
Item 4 is hereby amended and supplemented to add the following: On September 16, 2026, SGF FANG sold an aggregate of 9,079,675 shares of Common Stock at a price of $205.26 per share pursuant to Rule 144 under the Securities Act of 1933, as amended (the "September 16, 2026 Sale"). In connection with the September 16, 2026 Sale, SGF FANG is subject to a lock-up period from September 16, 2026 through the date 30 days after September 16, 2026, during which SGF FANG may not sell any shares of Common Stock without the mutual agreement of SGF FANG and Morgan Stanley & Co. LLC.Item 4 of the SCHEDULE 13D/A filed 2026-09-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-15 | Greth Lyndal | 35.1% | SCHEDULE 13D/A |
| 2025-12-02 | Greth Lyndal | 34.8% | SCHEDULE 13D/A |
| 2026-02-05 | Greth Lyndal | 34.1% | SCHEDULE 13D/A |
| 2026-03-16 | Greth Lyndal | 29.9% | SCHEDULE 13D/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Capital Management | 5.21% | SCHEDULE 13G |
| 2026-06-05 | Greth Lyndal | 26.3% | SCHEDULE 13D/A |
| 2026-08-13 | Wellington Management Group LLP | 5.8% | SCHEDULE 13G |
| 2026-09-17 | Greth Lyndal | 23.2% | SCHEDULE 13D/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.