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Who

Steven E. West

Director

Company insider

Files Form 4 as: Director, Diamondback Energy; Director, Viper Energy; Director, VNOM Sub; Director, Rattler Midstream LP.

Every Form 4 they filed

In numbers

Trades disclosed
46
Buys
5
Sells
5
Bought
$2.4M
Sold
$6.4M
Companies
4
Companies where not an officer
4
First trade
11 Oct 2012
Last trade
20 May 2026
Last filed
21 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
FANG Diamondback EnergyDirector · Oil & Gas E&P · last 20 May 20262 buys · 3 sells
VNOM Viper EnergyDirector · Oil & Gas E&P · last 19 May 20260 buys · 0 sells
VNOM SubDirector · last 19 Aug 20252 buys · 1 sell
Rattler Midstream LPDirector · last 24 Aug 20221 buy · 1 sell

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
20 May 2026filed 21 May 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—982 at $0.00filing
20 May 2026filed 21 May 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—982 at $0.00filing
19 May 2026filed 21 May 2026VNOM Viper EnergyOil & Gas E&PSEC FORM 4 Code A—3,612 at $0.00filing
19 May 2026filed 21 May 2026VNOM Viper EnergyOil & Gas E&PSEC FORM 4 Code A—3,612 at $0.00filing
18 Mar 2026filed 19 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$1.1M6,000 at $188.35filing
18 Mar 2026filed 19 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$1.1M6,000 at $188.35filing
19 Aug 2025filed 19 Aug 2025VNOM SubSEC FORM 4 Code D—32,788filing
21 May 2025filed 22 May 2025FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—1,417 at $0.00filing
20 May 2025filed 22 May 2025Viper EnergySEC FORM 4 Code A—4,173 at $0.00filing
16 Dec 2024filed 17 Dec 2024FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Bought$976K6,000 at $162.66filing
10 Jul 2024filed 11 Jul 2024Viper EnergySEC FORM 4 Code A—2,555 at $0.00filing
6 Jun 2024filed 10 Jun 2024FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—1,035 at $0.00filing
10 Aug 2023filed 14 Aug 2023FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$1.2M8,000 at $150.65filing
10 Jul 2023filed 12 Jul 2023Viper Energy Partners LPSEC FORM 4 Code A—3,863 at $0.00filing
8 Jun 2023filed 12 Jun 2023FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—1,527 at $0.00filing
24 Aug 2022filed 24 Aug 2022FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—4,108filing
24 Aug 2022filed 24 Aug 2022Rattler Midstream LPSEC FORM 4 Code D—36,356filing
11 Jul 2022filed 13 Jul 2022Viper Energy Partners LPSEC FORM 4 Code A—3,907 at $0.00filing
9 Jun 2022filed 13 Jun 2022FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—1,274 at $0.00filing
25 Feb 2022filed 1 Mar 2022Viper Energy Partners LPSEC FORM 4 Sold$1.7M60,000 at $28.37filing

Sectors

Energy5
Not placed5

Buys in green, sells in red, by the company’s sector.

Related people

Charles Alvin MeloyDirector · Director at Diamondback Energy, filing Form 4 there in the last year
Austen GilfillianPresident · President at Viper Energy, filing Form 4 there in the last year
SGF FANG Holdings, LP10% owner · 10% owner at Diamondback Energy, filing Form 4 there in the last year
John P. GrotzingerDirector · Director at Viper Energy, filing Form 4 there in the last year
Teresa L. DickEVP Accounting, Assist. Sec. · EVP Accounting, Assist. Sec. at Diamondback Energy, filing Form 4 there in the last year
Matt ZmigroskyEVP, Chief Legal and Admin Off · Also traded FANG in the last 90 days
Travis D. SticeDirector · Also traded FANG in the last 90 days
Mark Lawrence PlaumannDirector · Also traded FANG in the last 90 days