United States Oil & Gas

Diamondback Energy Inc (FANG)

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Over the past 90 days, Diamondback Energy Inc. has seen 35 insider transactions, all of which were sales totaling approximately $6.2 billion. Notable activity includes significant planned and proposed sales by Director Charles A. Meloy and SGF FANG Holdings, LP. These transactions occurred alongside a recent earnings report that missed expectations by 56.09%.
Ticker: FANG Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Diamondback Energy Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Planned sale 3 Aug 2026
Value US$4,975,595.38 | Price 484.07 | Shares 41,235 (-49.1%)
Planned sale 3 Aug 2026
Value US$4,146,869.98 | Price 124.53 | Shares 98,347 (+30.6%)
Planned sale 3 Aug 2026
Value US$100,000.00 | Price 197.91 | Shares 1,000 (-0.9%)
Planned sale 3 Aug 2026
Value US$100,000.00 | Price 197.06 | Shares 1,000 (-0.5%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-04 2026-08-03 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
41,235 -49.1%
484.07
US$4,975,595 		41,235 -49.1% 484.07 US$4,975,595
2026-08-04 2026-08-03 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
98,347 +30.6%
124.53
US$4,146,870 		98,347 +30.6% 124.53 US$4,146,870
2026-08-04 2026-08-03 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
35,884 -20.6%
205.94
US$2,083,758 		35,884 -20.6% 205.94 US$2,083,758
2026-08-04 2026-08-03 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,000 -0.5%
197.06
US$100,000 		1,000 -0.5% 197.06 US$100,000
2026-06-17 2026-06-16 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
4,049 -0.5%
187.68
US$759,900 		4,049 -0.5% 187.68 US$759,900
2026-06-17 2026-06-16 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
64,747 -7.0%
187.25
US$12,124,057 		64,747 -7.0% 187.25 US$12,124,057
2026-06-17 2026-06-16 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
14,538 -1.6%
186.37
US$2,709,374 		14,538 -1.6% 186.37 US$2,709,374
2026-06-16 2026-06-16 PrS Proposed sale
Charles A. Meloy

Director

Non-Executive Director
116,667
188.12
US$21,947,396 		116,667 188.12 US$21,947,396
2026-06-10 2026-06-09 S Sale
3.2
Plaumann Mark Lawrence
Non-Executive Director
500 -3.6%
196.50
US$98,250 		500 -3.6% 196.50 US$98,250
2026-06-09 2026-06-09 PrS Proposed sale
3.2
Plaumann Mark Lawrence

Director

Non-Executive Director
500
196.50
US$98,250 		500 196.50 US$98,250
2026-06-08 2026-06-04 S Sale
3.4
Dick Teresa L.

CAO, Exec. VP, Assist. Sec.

Officer
5,000 -5.8%
205.00
US$1,025,000 		5,000 -5.8% 205.00 US$1,025,000
2026-06-05 2026-06-04 S Sale
2.2
SGF FANG Holdings, LP
Large shareholder
10,000,000 -11.9%
204.25
US$2,042,500,000 		10,000,000 -11.9% 204.25 US$2,042,500,000
2026-06-05 2026-06-04 S Sale
2.2
SGF FANG Holdings, LP
Large shareholder
10,000,000 -11.9%
204.25
US$2,042,500,000 		10,000,000 -11.9% 204.25 US$2,042,500,000
2026-06-04 2026-06-04 PrS Proposed sale
2.2
SGF FANG Holdings, LP

10 Percent Holder
10,000,000
207.16
US$2,071,600,000 		10,000,000 207.16 US$2,071,600,000
2026-06-04 2026-06-04 PrS Proposed sale
3.4
Dick Teresa L.

Officer

Officer
5,000
205.00
US$1,025,000 		5,000 205.00 US$1,025,000
2026-06-04 2026-06-03 S Sale
2.8
Zmigrosky Matt

EVP, Chief Legal and Admin Off

Officer
5,000 -10.8%
210.00
US$1,050,000 		5,000 -10.8% 210.00 US$1,050,000
2026-06-04 2026-06-03 S Sale
3.9
Van't Hof Matthew Kaes

Chief Executive Officer

Executive Director
10,000 -7.0%
210.00
US$2,100,000 		10,000 -7.0% 210.00 US$2,100,000
2026-06-04 2026-06-03 S Sale
3.9
Van't Hof Matthew Kaes

Chief Executive Officer

Executive Director
5,000 -3.4%
205.00
US$1,025,000 		5,000 -3.4% 205.00 US$1,025,000
2026-06-03 2026-06-03 PrS Proposed sale
3.9
Van't Hof Matthew Kaes

Officer; Director

Executive Director
15,000
208.33
US$3,125,000 		15,000 208.33 US$3,125,000
2026-06-02 2026-06-02 S Sale
3.4
Dick Teresa L.

CAO, Exec. VP, Assist. Sec.

Officer
7,000 -7.5%
200.90
US$1,406,301 		7,000 -7.5% 200.90 US$1,406,301
2026-06-02 2026-06-02 PrS Proposed sale
3.4
Dick Teresa L.

Officer

Officer
7,000
200.90
US$1,406,301 		7,000 200.90 US$1,406,301
2026-06-02 2026-06-01 S Sale
2.8
Zmigrosky Matt

EVP, Chief Legal and Admin Off

Officer
5,000 -9.7%
200.54
US$1,002,700 		5,000 -9.7% 200.54 US$1,002,700
2026-05-21 2026-05-19 S Sale
3.4
Dick Teresa L.

CAO, Exec. VP, Assist. Sec.

Officer
5,000 -5.1%
207.00
US$1,035,000 		5,000 -5.1% 207.00 US$1,035,000
2026-05-19 2026-05-19 PrS Proposed sale
3.4
Dick Teresa L.

Officer

Officer
5,000
207.00
US$1,035,000 		5,000 207.00 US$1,035,000
2026-05-19 2026-05-15 S Sale
2.6
Thompson Jere W III

CFO, Executive VP

Officer
1,000 -5.0%
203.16
US$203,160 		1,000 -5.0% 203.16 US$203,160
2026-05-19 2026-05-15 S Sale
2.2
Barkmann Albert

Exec. VP and Chief Engineer

Officer
3,000 -10.9%
204.04
US$612,112 		3,000 -10.9% 204.04 US$612,112
2026-05-15 2026-05-15 PrS Proposed sale
2.2
Barkmann Albert

Officer

Officer
3,000
204.04
US$612,112 		3,000 204.04 US$612,112
2026-05-15 2026-05-15 PrS Proposed sale
2.6
Thompson Jere W III

Officer

Officer
1,000
203.16
US$203,160 		1,000 203.16 US$203,160
2026-05-14 2026-05-14 PrS Proposed sale
3.4
Dick Teresa L.

Officer

Officer
5,000
200.00
US$1,000,000 		5,000 200.00 US$1,000,000
2026-05-14 2026-05-14 S Sale
3.4
Dick Teresa L.

CAO, Exec. VP, Assist. Sec.

Officer
5,000 -4.9%
200.00
US$1,000,000 		5,000 -4.9% 200.00 US$1,000,000
2026-05-14 2026-05-13 S Sale
2.8
Zmigrosky Matt

EVP, Chief Legal and Admin Off

Officer
5,000 -8.9%
200.10
US$1,000,500 		5,000 -8.9% 200.10 US$1,000,500
2026-05-13 2026-05-13 PrS Proposed sale
2.8
Zmigrosky Matt

Officer

Officer
15,000
200.10
US$3,001,502 		15,000 200.10 US$3,001,502
2026-05-11 2026-05-08 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
3,909 -0.4%
189.56
US$740,996 		3,909 -0.4% 189.56 US$740,996
2026-05-11 2026-05-08 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
3,545 -0.4%
188.72
US$669,005 		3,545 -0.4% 188.72 US$669,005
2026-05-11 2026-05-08 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
403 -0.0%
187.54
US$75,577 		403 -0.0% 187.54 US$75,577
2026-05-11 2026-05-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
2,887 -0.3%
190.14
US$548,934 		2,887 -0.3% 190.14 US$548,934
2026-05-11 2026-05-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
2,492 -0.3%
189.44
US$472,081 		2,492 -0.3% 189.44 US$472,081
2026-05-11 2026-05-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,636 -0.2%
188.11
US$307,755 		1,636 -0.2% 188.11 US$307,755
2026-05-11 2026-05-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
842 -0.1%
187.35
US$157,749 		842 -0.1% 187.35 US$157,749
2026-04-08 2026-04-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,254 -0.1%
198.49
US$248,905 		1,254 -0.1% 198.49 US$248,905
2026-04-08 2026-04-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
2,348 -0.2%
197.83
US$464,501 		2,348 -0.2% 197.83 US$464,501
2026-04-08 2026-04-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
2,370 -0.2%
196.59
US$465,921 		2,370 -0.2% 196.59 US$465,921
2026-04-08 2026-04-07 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,885 -0.2%
195.55
US$368,613 		1,885 -0.2% 195.55 US$368,613
2026-04-08 2026-04-06 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
185 -0.0%
195.18
US$36,108 		185 -0.0% 195.18 US$36,108
2026-04-08 2026-04-06 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
5,356 -0.6%
194.15
US$1,039,886 		5,356 -0.6% 194.15 US$1,039,886
2026-04-08 2026-04-06 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
2,316 -0.2%
193.32
US$447,735 		2,316 -0.2% 193.32 US$447,735
2026-03-24 2026-03-20 S Sale
2.7
Wesson Daniel N

Exec. VP & COO

Officer
5,000 -6.0%
191.96
US$959,776 		5,000 -6.0% 191.96 US$959,776
2026-03-24 2026-03-20 S Sale
3.4
Dick Teresa L.

CAO, Exec. VP, Assist. Sec.

Officer
5,000 -4.6%
193.00
US$965,000 		5,000 -4.6% 193.00 US$965,000
2026-03-20 2026-03-20 PrS Proposed sale
2.7
Wesson Daniel N

Officer

Officer
5,000
191.96
US$959,776 		5,000 191.96 US$959,776
2026-03-20 2026-03-20 PrS Proposed sale
3.4
Dick Teresa L.

Officer

Officer
5,000
193.00
US$965,000 		5,000 193.00 US$965,000
2026-03-19 2026-03-18 S Sale
2.3
WEST STEVEN E
Non-Executive Director
6,000 -57.2%
188.35
US$1,130,129 		6,000 -57.2% 188.35 US$1,130,129
2026-03-19 2026-03-18 S Sale
2.8
Zmigrosky Matt

EVP, Chief Legal and Admin Off

Officer
4,101 -6.8%
190.51
US$781,293 		4,101 -6.8% 190.51 US$781,293
2026-03-19 2026-03-18 S Sale
3.4
Dick Teresa L.

CAO, Exec. VP, Assist. Sec.

Officer
5,000 -4.4%
190.00
US$950,000 		5,000 -4.4% 190.00 US$950,000
2026-03-18 2026-03-18 PrS Proposed sale
2.3
Steven E. West

Director

Non-Executive Director
6,000
188.35
US$1,130,121 		6,000 188.35 US$1,130,121
2026-03-18 2026-03-18 PrS Proposed sale
2.8
Zmigrosky Matt

Officer

Officer
4,101
190.51
US$781,293 		4,101 190.51 US$781,293
2026-03-18 2026-03-18 PrS Proposed sale
3.4
Dick Teresa L.

Officer

Officer
5,000
190.00
US$950,000 		5,000 190.00 US$950,000
2026-03-17 2026-03-16 S Sale
2.6
Thompson Jere W III

CFO, Executive VP

Officer
750 -3.6%
182.47
US$136,851 		750 -3.6% 182.47 US$136,851
2026-03-16 2026-03-16 PrS Proposed sale
2.6
Thompson Jere W III

Officer

Officer
750
182.47
US$136,851 		750 182.47 US$136,851
2026-03-17 2026-03-13 S Sale
2.8
Zmigrosky Matt

EVP, Chief Legal and Admin Off

Officer
20,899 -25.7%
180.00
US$3,761,876 		20,899 -25.7% 180.00 US$3,761,876
2026-03-17 2026-03-13 S Sale
2.2
Barkmann Albert

Exec. VP and Chief Engineer

Officer
4,000 -12.7%
182.90
US$731,600 		4,000 -12.7% 182.90 US$731,600
2026-03-13 2026-03-13 PrS Proposed sale
2.8
Zmigrosky Matt

Officer

Officer
20,899
180.00
US$3,761,877 		20,899 180.00 US$3,761,877
2026-03-13 2026-03-13 PrS Proposed sale
2.2
Barkmann Albert

Officer

Officer
4,000
182.90
US$731,600 		4,000 182.90 US$731,600
2026-03-16 2026-03-12 S Sale
2.2
SGF FANG Holdings, LP
Large shareholder
12,650,000 -13.1%
170.19
US$2,152,888,320 		12,650,000 -13.1% 170.19 US$2,152,888,320
2026-03-11 2026-03-10 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,455 -0.2%
182.03
US$264,855 		1,455 -0.2% 182.03 US$264,855
2026-03-11 2026-03-10 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,329 -0.1%
181.15
US$240,747 		1,329 -0.1% 181.15 US$240,747
2026-03-11 2026-03-10 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,075 -0.1%
180.25
US$193,766 		1,075 -0.1% 180.25 US$193,766
2026-03-11 2026-03-10 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,746 -0.2%
178.82
US$312,223 		1,746 -0.2% 178.82 US$312,223
2026-03-11 2026-03-10 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,686 -0.2%
178.10
US$300,273 		1,686 -0.2% 178.10 US$300,273
2026-03-11 2026-03-10 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
566 -0.1%
177.09
US$100,235 		566 -0.1% 177.09 US$100,235
2026-03-11 2026-03-09 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
108 -0.0%
186.16
US$20,105 		108 -0.0% 186.16 US$20,105
2026-03-11 2026-03-09 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
462 -0.0%
185.40
US$85,656 		462 -0.0% 185.40 US$85,656
2026-03-11 2026-03-09 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,465 -0.2%
184.46
US$270,231 		1,465 -0.2% 184.46 US$270,231
2026-03-11 2026-03-09 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
2,876 -0.3%
183.43
US$527,545 		2,876 -0.3% 183.43 US$527,545
2026-03-11 2026-03-09 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
1,849 -0.2%
182.67
US$337,751 		1,849 -0.2% 182.67 US$337,751
2026-03-11 2026-03-09 PlS Planned sale
Meloy Charles Alvin
Non-Executive Director
709 -0.1%
181.43
US$128,636 		709 -0.1% 181.43 US$128,636
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