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FANG - Diamondback Energy, Inc.

Insider Sale by Zmigrosky Matt (EVP, Chief Legal, Admin Off)

1 Month
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Trade Summary

5 days ago, Zmigrosky Matt, serving as EVP, Chief Legal, Admin Off at Diamondback Energy, Inc. (FANG), sold 4,101 shares at $190.51 per share, for a total transaction value of $781,293.00. Following this transaction, Zmigrosky Matt now holds 56,392 shares of FANG.

This sale represents a 7.00% decrease in Zmigrosky Matt's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Wednesday, March 18, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, March 19, 2026, 1 day after the trade was made.

Diamondback Energy, Inc. operates in the ENERGY sector, specifically within the OIL & GAS E&P industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Zmigrosky Matt

Zmigrosky Matt

EVP, Chief Legal, Admin Off

Matt Zmigrosky is the Executive Vice President, Chief Legal and Administrative Officer, and Secretary at Diamondback Energy, Inc. (FANG), a position he holds as of early 2026.[[1]](https://www.marketscreener.com/news/viper-energy-inc-announces-executive-changes-effective-february-18-2026-ce7e5dddd188fe25)[[2]](https://www.stocktitan.net/sec-filings/VNOM/8-k-viper-energy-inc-reports-material-event-5d37b8970b10.html)[[3]](https://www.sec.gov/Archives/edgar/data/1539838/000114036124040726/ef20035628_ex3-1.htm)[[5]](https://www.morningstar.com/stocks/xnas/fang/executive) In this role, he oversees legal, administrative, and corporate secretary functions, including signing key SEC filings on behalf of the company.[[3]](https://www.sec.gov/Archives/edgar/data/1539838/000114036124040726/ef20035628_ex3-1.htm) He recently sold 6,000 shares of FANG stock, reflecting insider trading activity.[[4]](https://www.gurufocus.com/news/2442100/insider-sale-evp-matt-zmigrosky-sells-6000-shares-of-diamondback-energy-inc-fang?mobile=true) Zmigrosky, aged 46, previously served as Executive Vice President, General Counsel, and Secretary at Viper Energy, Inc., but stepped down from that role effective February 18, 2026, to facilitate the promotion of Will Krueger, who continues to report to him.[[1]](https://www.marketscreener.com/news/viper-energy-inc-announces-executive-changes-effective-february-18-2026-ce7e5dddd188fe25)[[2]](https://www.stocktitan.net/sec-filings/VNOM/8-k-viper-energy-inc-reports-material-event-5d37b8970b10.html) No further details on his education or earlier career highlights are available in the provided sources.

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Trade Price

$190.51

Quantity

4,101

Total Value

$781,293.00

Shares Owned

56,392

Trade Date

Wednesday, March 18, 2026

5 days ago

SEC Filing Date

Thursday, March 19, 2026

Filed 1 day after trade

ENERGYOIL & GAS E&P

About Diamondback Energy, Inc.

Company Overview

No company information available
View news mentioning FANG

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