Diamondback Energy Inc
FANG · US
Diamondback Energy Inc is held by 2 of the 24 tracked investors in their latest 13F filings. The largest position is National Pension Service (Korea)'s at $53.9M, 0.03% of that portfolio. Versus the prior quarter, 0 added, 2 trimmed and 0 bought new. In the last 90 days insiders sold 3 times ($3.7B) and bought 0 times on the open market.
Big investors holding this stock
Latest 13F of the 24 tracked investors. Common shares only.
| Investor | Value ($) | vs prior quarter |
|---|---|---|
| National Pension Service (Korea) weight 0.03% · Q2 2026 |
53.9M | ▼ 2% |
| Korea Investment Corporation weight 0.04% · Q2 2026 |
22.0M | ▼ 44% |
5%+ holders (13D/13G)
SEC| Holder | Stake | Change |
|---|---|---|
| Sgf Fang Holdings Active |
23.2% | New filing |
Insider trades (90 days)
SEC Form 4| Insider | Trade | Amount ($) |
|---|---|---|
| Dick Teresa L. EVP Accounting, Assist. Sec. · 9/15 |
Sell | 1.1M |
| Sgf Fang Holdings, Lp 10% owner · 9/16 |
Sell | 1.9B |
| Sgf Fang Holdings, Lp 10% owner · 9/16 |
Sell | 1.9B |
Questions
Which big investors own Diamondback Energy Inc?
National Pension Service (Korea) ($53.9M), Korea Investment Corporation ($22.0M), per their latest 13F filings.
Does Warren Buffett own Diamondback Energy Inc?
Berkshire Hathaway did not report it in its latest 13F.
Does Korea's National Pension Service own Diamondback Energy Inc?
Yes, $53.9M as of 2026-06-30 (0.03% of its US holdings).
Have Diamondback Energy Inc insiders been selling?
3 open-market sales ($3.7B) and 0 purchases in the last 90 days; 0 of the sales were under pre-arranged 10b5-1 plans.
Restated and computed from SEC (13F, 13D/G, Form 4) and DART filings and NPS public data. Filings describe a past date and may differ from current holdings (13F: quarter end, up to 45 days later). Not investment advice.
Sources: SEC EDGAR, DART, data.go.kr (NPS), OpenFIGI. See Methodology for how figures are computed.