TUSK

Mammoth Energy Services, Inc.$3.02-0.16 (-4.97%)

Prev Close$3.18·MCap$106.0M·P/E—·Vol59.2K·Yield—

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Buys (12M)

$10.53M

▼

Sells (12M)

$0.00

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Net Activity

Net Buyer

$10.53M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Mammoth Energy Services, Inc. (TUSK) has been exclusively buying, with 5 insider purchases totaling $10.53M and 0 insider sales totaling $0.00. The most recent insider transaction was by Plaumann Mark Lawrence (director), who purchased $15.0K worth of shares on Sep 17, 2026. Mammoth Energy Services, Inc. operates in the Industrials sector, within the Conglomerates industry, with a market cap of $106.0M.

TUSK Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 17, 2026	Plaumann Mark Lawrence	director	Buy	5,000	$3.00	$15.0K	5,000
Jun 22, 2026	WEXFORD CAPITAL LP	director, 10 percent owner, officer: Chief Business Officer	Buy	4,019,574	$2.60	$10.47M8.3% OS	10,620,789+61%
Jun 15, 2026	Amron Arthur H	director	Buy	4,500	$3.25	$14.6K	67,135
May 28, 2026	Amron Arthur H	director	Buy	5,500	$3.25	$17.8K	62,635
Dec 11, 2025	Amron Arthur H	Director	Buy	10,000	$1.89	$18.9K	0
May 22, 2025	SMITH ARTHUR L	Director	Sell	20,000	$2.51	$50.2K	0
May 19, 2025	SMITH ARTHUR L	Director	Sell	65,000	$2.51	$162.8K	0
Dec 16, 2024	Amron Arthur H	Director	Buy	1,000	$2.97	$3.0K	47,135
Nov 26, 2024	Booker Corey J.	Director	Sell	25,000	$3.45	$86.3K	140,488
Nov 22, 2024	Booker Corey J.	Director	Sell	11,709	$3.23	$37.9K	157,197
Nov 15, 2024	Booker Corey J.	Director	Sell	10,707	$3.62	$38.7K	165,804
Nov 12, 2024	Booker Corey J.	Director	Sell	3,683	$3.62	$13.3K	176,422
May 30, 2024	Amron Arthur H	Director	Buy	5,000	$3.62	$18.1K	18,279+38%
Mar 14, 2024	Amron Arthur H	Director	Buy	3,000	$3.72	$11.2K	13,279+29%
Dec 19, 2023	Straehla Arty	Chief Executive Officer	Sell	70,000	$4.36	$305.4K	1,052,107
Dec 15, 2023	Straehla Arty	Chief Executive Officer	Sell	120,000	$4.40	$528.2K	1,177,107
Nov 14, 2022	SMITH ARTHUR L	Director	Sell	20,000	$7.07	$141.3K	163,368
Jun 21, 2022	WEXFORD CAPITAL LP		Buy	45,382	$2.14	$97.0K	22,434,124
Jun 15, 2022	WEXFORD CAPITAL LP		Buy	50,802	$2.31	$117.3K	22,388,744
Jun 10, 2022	WEXFORD CAPITAL LP		Buy	97,768	$2.47	$241.4K	22,337,940
Mar 11, 2022	Layton Mark E.	CFO and Secretary	Sell	40,417	$2.04	$82.3K	455,360
Dec 14, 2021	SMITH ARTHUR L	Director	Buy	25,000	$2.00	$50.0K	180,326
Mar 11, 2021	Layton Mark E.	CFO and Secretary	Sell	55,789	$5.22	$291.0K	495,777
Mar 11, 2021	Straehla Arty	Chief Executive Officer	Sell	148,990	$5.34	$796.1K	1,433,762

TUSK Insider Buying Activity

The following table shows recent insider purchases of Mammoth Energy Services, Inc. (TUSK) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 17, 2026	Plaumann Mark Lawrence	director	Buy	5,000	$3.00	$15.0K	5,000
Jun 22, 2026	WEXFORD CAPITAL LP	director, 10 percent owner, officer: Chief Business Officer	Buy	4,019,574	$2.60	$10.47M8.3% OS	10,620,789+61%
Jun 15, 2026	Amron Arthur H	director	Buy	4,500	$3.25	$14.6K	67,135
May 28, 2026	Amron Arthur H	director	Buy	5,500	$3.25	$17.8K	62,635
Dec 11, 2025	Amron Arthur H	Director	Buy	10,000	$1.89	$18.9K	0
Dec 16, 2024	Amron Arthur H	Director	Buy	1,000	$2.97	$3.0K	47,135
May 30, 2024	Amron Arthur H	Director	Buy	5,000	$3.62	$18.1K	18,279+38%
Mar 14, 2024	Amron Arthur H	Director	Buy	3,000	$3.72	$11.2K	13,279+29%
Jun 21, 2022	WEXFORD CAPITAL LP		Buy	45,382	$2.14	$97.0K	22,434,124
Jun 15, 2022	WEXFORD CAPITAL LP		Buy	50,802	$2.31	$117.3K	22,388,744
Jun 10, 2022	WEXFORD CAPITAL LP		Buy	97,768	$2.47	$241.4K	22,337,940
Dec 14, 2021	SMITH ARTHUR L	Director	Buy	25,000	$2.00	$50.0K	180,326

TUSK Insider Selling Activity

The following table shows recent insider sales of Mammoth Energy Services, Inc. (TUSK) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
May 22, 2025	SMITH ARTHUR L	Director	Sell	20,000	$2.51	$50.2K	0
May 19, 2025	SMITH ARTHUR L	Director	Sell	65,000	$2.51	$162.8K	0
Nov 26, 2024	Booker Corey J.	Director	Sell	25,000	$3.45	$86.3K	140,488
Nov 22, 2024	Booker Corey J.	Director	Sell	11,709	$3.23	$37.9K	157,197
Nov 15, 2024	Booker Corey J.	Director	Sell	10,707	$3.62	$38.7K	165,804
Nov 12, 2024	Booker Corey J.	Director	Sell	3,683	$3.62	$13.3K	176,422
Dec 19, 2023	Straehla Arty	Chief Executive Officer	Sell	70,000	$4.36	$305.4K	1,052,107
Dec 15, 2023	Straehla Arty	Chief Executive Officer	Sell	120,000	$4.40	$528.2K	1,177,107
Nov 14, 2022	SMITH ARTHUR L	Director	Sell	20,000	$7.07	$141.3K	163,368
Mar 11, 2022	Layton Mark E.	CFO and Secretary	Sell	40,417	$2.04	$82.3K	455,360
Mar 11, 2021	Layton Mark E.	CFO and Secretary	Sell	55,789	$5.22	$291.0K	495,777
Mar 11, 2021	Straehla Arty	Chief Executive Officer	Sell	148,990	$5.34	$796.1K	1,433,762