← All stocks

MAMMOTH ENERGY SERVICES, INC.

TUSK Net buying

CIK 0001679268 #4104 in the set updated 22 Sep 2026

Bought (12 mo)

$10.53M

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$0.00

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$0.00

0 of 0 sales

Net

+$10.53M

+$10.53M against sales at will

By person

8 insiders · 7 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

WEXFORD CAPITAL LP entity

Chief Business Officer

$10.47M (1)

—

+$10.47M

12,071,823

25.08%

$36.22M

+1,832%

Amron Arthur H

Director

$51.36K (5)

—

+$51.36K

96,585

0.2007%

$289.76K

+109.4%

Plaumann Mark Lawrence

Director

$15.00K (1)

—

+$15.00K

5,000

0.0104%

$15.00K

—

DAVIDSON CHARLES E

10% owner

—

6,470,441

13.44%

$19.41M

—

Lancaster Phillip

Director

—

159,445

0.3313%

$478.34K

+74.7%

SMITH ARTHUR L

Director

—

130,034

0.2702%

$390.10K

−39.5%

Booker Corey J.

Director

—

125,488

0.2607%

$376.46K

−28.9%

Jacobi Paul M.

Chief Business Officer

—

31,067

0.0646%

$93.20K

+11.5%

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 9

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 3

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 0

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 13,998,817

History held since 21 Oct 2016