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FANG Insider Trading & Form 4 Activity

Diamondback Energy, Inc.
Last filing: Jun 18, 2026·10 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$2.1B
13 sells
-$2.1B
net selling
7
insiders
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ACTIVE SELLING CLUSTER

4 insiders sold a combined $3.9M of FANG between May 13, 2026 and May 19, 2026.

Zmigrosky Matt, Dick Teresa L., Barkmann Albert, Thompson Jere W III

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Sgf Fang Holdings, Lp
Insider
$2.0B
-$2.0B
Meloy Charles Alvin
Insider
$18.6M
-$18.6M
Dick Teresa L.
CAO, Exec. VP, Assist. Sec.
$4.5M
-$4.5M
Van'T Hof Matthew Kaes
Chief Executive Officer
$3.1M
-$3.1M
Zmigrosky Matt
EVP, Chief Legal and Admin Off
$3.1M
-$3.1M
Barkmann Albert
Exec. VP and Chief Engineer
$612K
-$612K
Thompson Jere W III
CFO, Executive VP
$203K
-$203K
Plaumann Mark Lawrence
Insider
$98K
-$98K

Recent transactions

Every Form 4 transaction for FANG, newest first.

GIFT
Van'T Hof Matthew Kaes · Chief Executive Officer
Tx Jun 17·Filed Jun 18·EDGAR ↗
2,674 sh
SELL10b5-1
Meloy Charles Alvin · Insider
Tx Jun 16·Filed Jun 17·EDGAR ↗
14,538 sh @ $186.37
$2.7M
SELL10b5-1
Meloy Charles Alvin · Insider
Tx Jun 16·Filed Jun 17·EDGAR ↗
4,049 sh @ $187.68
$760K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx Jun 16·Filed Jun 17·EDGAR ↗
64,747 sh @ $187.25
$12.1M
SELL
Plaumann Mark Lawrence · Insider
Tx Jun 9·Filed Jun 10·EDGAR ↗
500 sh @ $196.50
$98K
SELL
Dick Teresa L. · CAO, Exec. VP, Assist. Sec.
Tx Jun 4·Filed Jun 8·EDGAR ↗
5,000 sh @ $205.00
$1.0M
SELL
Sgf Fang Holdings, Lp · Insider
Tx Jun 4·Filed Jun 5·EDGAR ↗
10,000,000 sh @ $204.25
$2.0B
SELL
Van'T Hof Matthew Kaes · Chief Executive Officer
Tx Jun 3·Filed Jun 4·EDGAR ↗
5,000 sh @ $205.00
$1.0M
SELL
Zmigrosky Matt · EVP, Chief Legal and Admin Off
Tx Jun 3·Filed Jun 4·EDGAR ↗
5,000 sh @ $210.00
$1.1M
SELL
Van'T Hof Matthew Kaes · Chief Executive Officer
Tx Jun 3·Filed Jun 4·EDGAR ↗
10,000 sh @ $210.00
$2.1M
SELL
Dick Teresa L. · CAO, Exec. VP, Assist. Sec.
Tx Jun 2·Filed Jun 2·EDGAR ↗
7,000 sh @ $200.90
$1.4M
SELL
Zmigrosky Matt · EVP, Chief Legal and Admin Off
Tx Jun 1·Filed Jun 2·EDGAR ↗
5,000 sh @ $200.54
$1.0M
AWARD
Trent Melanie Montague · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Brooks Vincent K · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Plaumann Mark Lawrence · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
West Steven E · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Reeves Robert K · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Tsuru Frank D. · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Meloy Charles Alvin · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Holderness Darin G · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Robertson Lance W · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Mains Stephanie K. · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Stice Travis D. · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
AWARD
Klein Rebecca A · Insider
Tx May 20·Filed May 21·EDGAR ↗
982 sh
SELL
Dick Teresa L. · CAO, Exec. VP, Assist. Sec.
Tx May 19·Filed May 21·EDGAR ↗
5,000 sh @ $207.00
$1.0M
SELL
Barkmann Albert · Exec. VP and Chief Engineer
Tx May 15·Filed May 19·EDGAR ↗
3,000 sh @ $204.04
$612K
SELL
Thompson Jere W III · CFO, Executive VP
Tx May 15·Filed May 19·EDGAR ↗
1,000 sh @ $203.16
$203K
SELL
Dick Teresa L. · CAO, Exec. VP, Assist. Sec.
Tx May 14·Filed May 14·EDGAR ↗
5,000 sh @ $200.00
$1.0M
SELL
Zmigrosky Matt · EVP, Chief Legal and Admin Off
Tx May 13·Filed May 14·EDGAR ↗
5,000 sh @ $200.10
$1.0M
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 8·Filed May 11·EDGAR ↗
403 sh @ $187.54
$76K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 8·Filed May 11·EDGAR ↗
3,545 sh @ $188.72
$669K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 8·Filed May 11·EDGAR ↗
3,909 sh @ $189.56
$741K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 7·Filed May 11·EDGAR ↗
842 sh @ $187.35
$158K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 7·Filed May 11·EDGAR ↗
1,636 sh @ $188.11
$308K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 7·Filed May 11·EDGAR ↗
2,887 sh @ $190.14
$549K
SELL10b5-1
Meloy Charles Alvin · Insider
Tx May 7·Filed May 11·EDGAR ↗
2,492 sh @ $189.44
$472K

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About FANG insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for FANG from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying FANG always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Diamondback Energy, Inc. (FANG) when they form.

Where does FANG insider trading data come from?

Every Form 4 filing for FANG is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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