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Mammoth Energy Services Inc is an integrated energy services company engaged in providing products and services to enable the exploration and development of North American onshore unconventional oil and natural gas reserves as well as the construction and repair of the electric grid for private utilities, public investor-owned utilities, and co-operative utilities through infrastructure services businesses. The company had three reportable segments, which includes well completion services (Well Completion), infrastructure services (Infrastructure) and natural sand proppant services (Sand). Key revenue is generated from Infrastructure which include electric utility infrastructure services to government-funded utilities, private utilities, public investor-owned utilities, etc.

Founded: 2014 Country:
United States
United States
Employees: N/A City: OKLAHOMA CITY
Market Cap: 102.2M IPO Year: 2016
Target Price: N/A AVG Volume (30 days): 215.1K
Analyst Decision: N/A Number of Analysts: N/A
Dividend Yield:
N/A
Dividend Payout Frequency: quarterly
EPS: 0.10 EPS Growth: 102.32
52 Week Low/High: $1.68 - $2.96 Next Earning Date: 06-08-2026
Revenue: $44,292,000 Revenue Growth: -76.43%
Revenue Growth (this year): -11.05% Revenue Growth (next year): 28.22%
P/E Ratio: -24.00 Index: N/A
Free Cash Flow: -89122000.0 FCF Growth: N/A

Stock Insider Trading Activity of Mammoth Energy Services Inc. (TUSK)

Buy
TUSK Dec 11, 2025

Avg Cost/Share

$1.89

Shares

10,000

Total Value

$18,900.00

Owned After

57,135

SEC Form 4

Earnings Transcripts

SEC 8-K filings with transcript text

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2025
Q4

Q4 2025 Earnings

8-K SELL

Mar 6, 2026 · 100% conf.

AI Prediction SELL

1D

-3.71%

$2.08

5D

-5.10%

$2.05

20D

-8.74%

$1.97

Price: $2.16 Prob +5D: 0% AUC: 1.000
0001628280-26-015465

tusk-202603060001679268FALSE00016792682026-03-062026-03-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): March 6, 2026

Mammoth Energy Services, Inc.

(Exact name of registrant as specified in its charter)

001-37917 (Commission File No.)

Delaware32-0498321 (State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)

14201 Caliber Drive,Suite 300 Oklahoma City,Oklahoma(405)608-600773134 (Address of principal executive offices)(Registrant’s telephone number, including area code)(Zip Code)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of The Act: Title of each classTrading Symbol(s)Name of each exchange on which registered Common StockTUSKThe Nasdaq Stock Market LLC NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§232.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(s) of the Exchange Act.  ¨

Item 2.02 Results of Operations and Financial Condition

On March 6, 2026, Mammoth Energy Services, Inc. (the “Company”) issued a press release announcing its operational and financial results for the fourth quarter and full year ended December 31, 2025. A copy of that press release is furnished as Exhibit 99.1 to this report.

The information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any registration statement filed under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference in the registration statement.

Item 9.01 Financial Statements and Exhibits.

(d)    Exhibits.

99.1 Press release dated March 6, 2026, entitled “Mammoth Energy Services, Inc. Announces Fourth Quarter and Full Year 2025 Operational and Financial Results.”

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

MAMMOTH ENERGY SERVICES, INC.

Date:March 6, 2026By:/s/ Mark Layton Mark Layton Chief Financial Officer and Secretary

2025
Q3

Q3 2025 Earnings

8-K BUY

Oct 31, 2025 · 100% conf.

AI Prediction BUY

1D

+3.23%

$2.11

5D

+13.40%

$2.31

20D

+24.46%

$2.54

Price: $2.04 Prob +5D: 100% AUC: 1.000
0001679268-25-000036

tusk-202510310001679268FALSE00016792682025-08-082025-08-08

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 31, 2025

Mammoth Energy Services, Inc.

(Exact name of registrant as specified in its charter)

001-37917 (Commission File No.)

Delaware32-0498321 (State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)

14201 Caliber Drive,Suite 300 Oklahoma City,Oklahoma(405)608-600773134 (Address of principal executive offices)(Registrant’s telephone number, including area code)(Zip Code)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of The Act: Title of each classTrading Symbol(s)Name of each exchange on which registered Common StockTUSKThe Nasdaq Stock Market LLC NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§232.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(s) of the Exchange Act.  ¨

Item 2.02 Results of Operations and Financial Condition

On October 31, 2025, Mammoth Energy Services, Inc. (the “Company”) issued a press release announcing its operational and financial results for the third quarter ended September 30, 2025. A copy of that press release is furnished as Exhibit 99.1 to this report.

The information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any registration statement filed under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference in the registration statement.

Item 9.01 Financial Statements and Exhibits.

(d)    Exhibits.

99.1 Press release dated October 31, 2025, entitled “Mammoth Energy Services, Inc. Announces Third Quarter 2025 Operational and Financial Results.”

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

MAMMOTH ENERGY SERVICES, INC.

Date:October 31, 2025By:/s/ Mark Layton Mark Layton Chief Financial Officer and Secretary

2025
Q2

Q2 2025 Earnings

8-K

Aug 8, 2025

0001628280-25-039122

tusk-202508080001679268FALSE00016792682025-08-082025-08-08

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): August 8, 2025

Mammoth Energy Services, Inc.

(Exact name of registrant as specified in its charter)

001-37917 (Commission File No.)

Delaware32-0498321 (State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)

14201 Caliber Drive,Suite 300 Oklahoma City,Oklahoma(405)608-600773134 (Address of principal executive offices)(Registrant’s telephone number, including area code)(Zip Code)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of The Act: Title of each classTrading Symbol(s)Name of each exchange on which registered Common StockTUSKThe Nasdaq Stock Market LLC NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§232.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(s) of the Exchange Act.  ¨

Item 2.02 Results of Operations and Financial Condition

On August 8, 2025, Mammoth Energy Services, Inc. (the “Company”) issued a press release announcing its operational and financial results for the second quarter ended June 30, 2025. A copy of that press release is furnished as Exhibit 99.1 to this report.

The information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any registration statement filed under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference in the registration statement.

Item 9.01 Financial Statements and Exhibits.

(d)    Exhibits.

99.1 Press release dated August 8, 2025, entitled “Mammoth Energy Services, Inc. Announces Second Quarter 2025 Operational and Financial Results.”

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

MAMMOTH ENERGY SERVICES, INC.

Date:August 8, 2025By:/s/ Mark Layton Mark Layton Chief Financial Officer and Secretary

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