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FANG Diamondback Energy, Inc.

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

-$35.0M net selling - trailing 90 days

0 buyers - 10 unique sellers

Historical context: most recent complete month (2026-09) is the 15th percentile of this ticker's monthly net P/S flow over 24 complete months. Lower percentiles are more selling; higher are more buying. P10–P90: -$21.3M to $0.

9 accumulating - 4 trimming - 0 unchanged

13 comparable institutions - Q2 2026

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$100.0M$50.0M$0-$50.0M-$100.0M2024-10 $02024-11 $258K2024-12 -$196K2025-01 $02025-02 $313K2025-03 $02025-04 $02025-05 -$1.4M2025-06 -$1.9M2025-07 $02025-08 -$2.9M2025-09 $02025-10 $02025-11 -$2.7M2025-12 -$52.4M2026-01 $02026-02 -$10.1M2026-03 -$37.0M2026-04 -$3.1M2026-05 -$6.8M2026-06 -$23.3M2026-07 $02026-08 -$12.2M2026-09 -$16.7M2026-10 -$6.1MInstitutional shares (majority-gated quarters)100.0M50.0M02025-Q4 72.2M sh2026-Q1 51.2M sh2026-Q2 50.5M shOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26Q4 2025Q1 2026Q2 2026~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Who is responsible

Insider Role Net activity Rows
Stice Travis D. — -~$15.3M 1
Meloy Charles Alvin — -~$6.6M 4
Meloy Charles Alvin — -~$6.1M 3
Van't Hof Matthew Kaes Chief Executive Officer -~$3.2M 3
Wesson Daniel N Exec. VP & COO -~$1.6M 1
Dick Teresa L. EVP Accounting, Assist. Sec. -~$1.1M 1
Zmigrosky Matt EVP, Chief Legal and Admin Off -~$0.5M 1
Zmigrosky Matt EVP, Chief Legal and Admin Off -~$0.3M 1
Plaumann Mark Lawrence — -~$0.2M 1
Thompson Jere W III CFO, Executive VP -~$0.1M 1

10% owner activity

Date Name Value
September 16, 2026 SGF FANG Holdings, LP jointly filed ~$1.9B
September 16, 2026 SGF FANG Holdings, LP jointly filed ~$1.9B

Transactions

Date Insider Role Type Shares Price Value
October 5, 2026 Meloy Charles Alvin — 3 reported sale rows 33333 — ~$6.1M
September 15, 2026 Dick Teresa L. EVP Accounting, Assist. Sec. S -5000 210 ~$1.1M
September 15, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -1326 212.5554 ~$0.3M
September 11, 2026 Stice Travis D. — S -75000 204.3103 ~$15.3M
August 21, 2026 Plaumann Mark Lawrence — S -1000 210.5766 ~$0.2M
August 20, 2026 Van't Hof Matthew Kaes Chief Executive Officer 2 reported sale rows 10000 — ~$2.1M
August 20, 2026 Wesson Daniel N Exec. VP & COO S -7500 215.2072 ~$1.6M
August 14, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -2500 202.7721 ~$0.5M
August 14, 2026 Thompson Jere W III CFO, Executive VP S -500 204.1401 ~$0.1M
August 11, 2026 Van't Hof Matthew Kaes Chief Executive Officer S -5000 202.4632 ~$1.0M
August 3, 2026 Meloy Charles Alvin — 4 reported sale rows 33333 — ~$6.6M
June 16, 2026 Meloy Charles Alvin — 3 reported sale rows 83334 — ~$15.6M
June 9, 2026 Plaumann Mark Lawrence — S -500 196.5 ~$98K
June 4, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -5000 205 ~$1.0M
June 3, 2026 Van't Hof Matthew Kaes Chief Executive Officer 2 reported sale rows 15000 — ~$3.1M
June 3, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -5000 210 ~$1.1M
June 2, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -7000 200.9001 ~$1.4M
June 1, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -5000 200.5401 ~$1.0M
May 19, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -5000 207 ~$1.0M
May 15, 2026 Barkmann Albert Exec. VP and Chief Engineer S -3000 204.0375 ~$0.6M
May 15, 2026 Thompson Jere W III CFO, Executive VP S -1000 203.1602 ~$0.2M
May 14, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -5000 200 ~$1.0M
May 13, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -5000 200.1001 ~$1.0M
May 8, 2026 Meloy Charles Alvin — 3 reported sale rows 7857 — ~$1.5M
May 7, 2026 Meloy Charles Alvin — 4 reported sale rows 7857 — ~$1.5M
April 7, 2026 Meloy Charles Alvin — 4 reported sale rows 7857 — ~$1.5M
April 6, 2026 Meloy Charles Alvin — 3 reported sale rows 7857 — ~$1.5M
March 20, 2026 Wesson Daniel N Exec. VP & COO S -5000 191.9552 ~$1.0M
March 20, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -5000 193 ~$1.0M
March 18, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -4101 190.5128 ~$0.8M
March 18, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -5000 190 ~$0.9M
March 18, 2026 WEST STEVEN E — S -6000 188.3548 ~$1.1M
March 16, 2026 Thompson Jere W III CFO, Executive VP S -750 182.4679 ~$0.1M
March 13, 2026 Barkmann Albert Exec. VP and Chief Engineer S -4000 182.9 ~$0.7M
March 13, 2026 Zmigrosky Matt EVP, Chief Legal and Admin Off S -20899 180.0027 ~$3.8M
March 10, 2026 Meloy Charles Alvin — 6 reported sale rows 7857 — ~$1.4M
March 9, 2026 Meloy Charles Alvin — 7 reported sale rows 7857 — ~$1.4M
March 9, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -2500 185 ~$0.5M
March 6, 2026 Wesson Daniel N Exec. VP & COO 2 reported sale rows 20000 — ~$3.6M
March 6, 2026 Dick Teresa L. CAO, Exec. VP, Assist. Sec. S -3000 181.4578 ~$0.5M
March 6, 2026 Van't Hof Matthew Kaes Chief Executive Officer S -10000 180.8399 ~$1.8M
March 6, 2026 Stice Travis D. Executive Chairman 4 reported sale rows 100000 — ~$18.1M
March 6, 2026 Thompson Jere W III CFO, Executive VP S -750 181.68 ~$0.1M
February 3, 2026 Meloy Charles Alvin — 3 reported sale rows 60605 — ~$9.8M
February 2, 2026 Meloy Charles Alvin — S -2200 160.1675 ~$0.4M
December 8, 2025 Meloy Charles Alvin — S -53 160.1311 ~$8K
December 4, 2025 Meloy Charles Alvin — S -377911 138.61 ~$52.4M
November 26, 2025 Wesson Daniel N Exec. VP & COO S -4000 149.2369 ~$0.6M
November 14, 2025 Zmigrosky Matt EVP, Chief Legal and Admin Off S -3500 148.1801 ~$0.5M
November 11, 2025 Thompson Jere W III CFO, Executive VP S -1000 147.7301 ~$0.1M
November 6, 2025 Van't Hof Matthew Kaes Chief Executive Officer S -10000 140.614 ~$1.4M
August 7, 2025 Stice Travis D. Executive Chairman 7 reported sale rows 20400 — ~$2.9M
June 18, 2025 Meloy Charles Alvin — S -87 155.0275 ~$13K
June 17, 2025 Meloy Charles Alvin — 2 reported sale rows 6066 — ~$0.9M
June 9, 2025 Thompson Jere W III CFO, Executive VP S -1500 141.5165 ~$0.2M
June 3, 2025 Wesson Daniel N Exec. VP & COO S -5000 142.0613 ~$0.7M
May 12, 2025 Van't Hof Matthew Kaes President S -10000 142.6903 ~$1.4M
February 28, 2025 Tsuru Frank D. — P 2000 156.5099 ~$0.3M
December 16, 2024 WEST STEVEN E — P 6000 162.66 ~$1.0M
December 13, 2024 Van't Hof Matthew Kaes President & CFO S -4000 163.4821 ~$0.7M
December 5, 2024 Stice Travis D. Chief Executive Officer S -3000 172.512 ~$0.5M
November 13, 2024 Plaumann Mark Lawrence — 2 reported sale rows 1390 — ~$0.3M
November 8, 2024 REEVES ROBERT K — P 2832 180 ~$0.5M