Wexford Capital (NASDAQ: TUSK) adds 4.0M Mammoth Energy shares, restructures holdings

Rhea-AI Filing Summary

MAMMOTH ENERGY SERVICES (TUSK) reported a large insider-related purchase and restructuring of share holdings. Entities associated with Wexford Capital completed an open-market purchase of 4,019,574 shares of common stock at an average price of $2.6043 per share, recorded as indirect ownership.

Additional "J" code entries reclassified a total of 7,427,563 shares through in-kind distributions from MEH SUB LLC as payment of management fees and expenses and other non-cash restructuring moves that did not involve a purchase, sale, or additional consideration. After these transactions, the reporting structure shows multi-entity indirect holdings and 1,451,034 shares held directly, with Wexford-related parties deemed to share voting and dispositive power while formally disclaiming beneficial ownership except for any pecuniary interest.

Insights

Equity ownership & governance analyst

Large open-market buy plus internal reallocations increase Wexford’s visible TUSK exposure.

The data shows Wexford-affiliated entities executing an open-market purchase of 4,019,574 Mammoth Energy shares at $2.6043 per share, alongside non-cash "J" code restructuring moves. This significantly increases the reported indirect equity position under Wexford’s influence.

The "J" transactions reflect in-kind distributions from MEH SUB LLC to satisfy management fees and expenses, explicitly stated as not involving a purchase, sale, or additional consideration. These are internal transfers, not market trades, but they consolidate exposure under Wexford-managed vehicles.

Post-transaction, one line shows 10,620,789 shares following the open-market purchase, while another shows 6,601,215 shares after restructuring and 1,451,034 shares held directly. Wexford Capital, Wexford GP, and related individuals are deemed to share voting and dispositive power but formally disclaim beneficial ownership beyond pecuniary interests.

Insider Trade Summary

Net Buyer: 4,019,574 shares ($10,468,177)

Net Buy 3 txns

Insider WEXFORD CAPITAL LP, Wexford GP LLC, DAVIDSON CHARLES E, JACOBS JOSEPH

Role Chief Business Officer | Chief Business Officer | Chief Business Officer | Chief Business Officer

Bought 4,019,574 shs ($10.47M)

Type	Security	Shares	Price	Value
Other	Common Stock	1,072,896	$0.00	--
Other	Common Stock	6,354,667	$0.00	--
Purchase	Common Stock	4,019,574	$2.6043	$10.47M

Holdings After Transaction: Common Stock — 1,451,034 shares (Direct, null); Common Stock — 6,601,215 shares (Indirect, See footnotes)

Footnotes (1)

1. Represents an in-kind distribution from MEH SUB LLC ("MEH SUB"), an entity managed by Wexford Capital LP ("Wexford Capital"), as payment of fees and expenses owed to Wexford Capital related to its performance of investment management services. Represents an in-kind distribution from MEH SUB that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration. Represents the common stock of the Issuer held in the aggregate by Wexford Spectrum Trading Limited ("WST"), Wexford Catalyst Trading Limited ("WCT") and Wexford Focused Trading Limited ("WFT", and together with WST and WCT, the "Wexford Entities"). Wexford Capital may, by reason of its status as (i) sub-advisor of each of WST and WCT and (ii) investment manager of WFT be deemed to own beneficially the securities held by the Wexford Entities. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Entities. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs", and together with the Wexford Entities, Wexford Capital, Wexford GP and Davidson, the "Reporting Persons") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Entities and this report shall not be deemed as an admission that they are the beneficial owners of such securities, except to the extent of any pecuniary interests therein. The Reporting Persons may be deemed to be a director and officer of the Issuer by virtue of Paul Jacobi, an employee of Wexford Capital, serving as a director and officer of the Issuer.

Key Figures

Open-market purchase: 4,019,574 shares Average purchase price: $2.6043 per share Shares after open-market buy: 10,620,789 shares +3 more

6 metrics

Open-market purchase 4,019,574 shares Common Stock bought on 2026-06-17

Average purchase price $2.6043 per share Open-market transaction on 2026-06-17

Shares after open-market buy 10,620,789 shares Total shares following transaction, indirect

Restructured via J code 7,427,563 shares Other acquisition/disposition transactions

Indirect shares after restructuring 6,601,215 shares Total shares following J-code restructuring

Direct holdings after restructuring 1,451,034 shares Common Stock held directly after J-code entry

Key Terms

open-market purchase, in-kind distribution, beneficial ownership, pecuniary interests, +1 more

5 terms

open-market purchase financial

"Entities associated with Wexford Capital completed an open-market purchase of 4,019,574 shares"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

in-kind distribution financial

"Represents an in-kind distribution from MEH SUB LLC as payment of fees and expenses"

beneficial ownership financial

"may be deemed to own beneficially the securities held by the Wexford Entities"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interests financial

"disclaim beneficial ownership of the securities except to the extent of any pecuniary interests therein"

indirect ownership financial

"recorded as indirect ownership through Wexford-managed investment vehicles"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/22/2026 - 04:27 PM Accepted by SEC EDGAR 06/22/2026 - 04:26 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

WEXFORD CAPITAL LP

(Last) (First) (Middle)

777 SOUTH FLAGLER DRIVE

SUITE 602 EAST

(Street)

WEST PALM BEACH FLORIDA 33401-6122

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MAMMOTH ENERGY SERVICES, INC. [ TUSK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Business Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/17/2026		J(1)		1,072,896	A	$0	1,451,034	D
Common Stock	06/17/2026		J(2)		6,354,667	A	$0	6,601,215(3)	I	See footnotes(4)(5)
Common Stock	06/17/2026		P		4,019,574	A	$2.6043	10,620,789(3)	I	See footnotes(4)(5)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

WEXFORD CAPITAL LP

(Last) (First) (Middle)

777 SOUTH FLAGLER DRIVE

SUITE 602 EAST

(Street)

WEST PALM BEACH FLORIDA 33401-6122

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Business Officer

1. Name and Address of Reporting Person^*

Wexford GP LLC

(Last) (First) (Middle)

C/O WEXFORD CAPITAL LP

777 SOUTH FLAGLER DRIVE, SUITE 602 EAST

(Street)

WEST PALM BEACH CONNECTICUT 33401

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Business Officer

1. Name and Address of Reporting Person^*

DAVIDSON CHARLES E

(Last) (First) (Middle)

C/O WEXFORD CAPITAL LP

777 SOUTH FLAGLER DRIVE, SUITE 602

(Street)

WEST PALM BEACH FLORIDA 33401

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Business Officer

1. Name and Address of Reporting Person^*

JACOBS JOSEPH

(Last) (First) (Middle)

C/O WEXFORD CAPITAL LP

777 SOUTH FLAGLER DRIVE, SUITE 602 EAST

(Street)

WEST PALM BEACH FLORIDA 33401

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Business Officer

Explanation of Responses:

1. Represents an in-kind distribution from MEH SUB LLC ("MEH SUB"), an entity managed by Wexford Capital LP ("Wexford Capital"), as payment of fees and expenses owed to Wexford Capital related to its performance of investment management services.

2. Represents an in-kind distribution from MEH SUB that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

3. Represents the common stock of the Issuer held in the aggregate by Wexford Spectrum Trading Limited ("WST"), Wexford Catalyst Trading Limited ("WCT") and Wexford Focused Trading Limited ("WFT", and together with WST and WCT, the "Wexford Entities").

4. Wexford Capital may, by reason of its status as (i) sub-advisor of each of WST and WCT and (ii) investment manager of WFT be deemed to own beneficially the securities held by the Wexford Entities. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Entities. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs", and together with the Wexford Entities, Wexford Capital, Wexford GP and Davidson, the "Reporting Persons") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Entities.

5. Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Entities and this report shall not be deemed as an admission that they are the beneficial owners of such securities, except to the extent of any pecuniary interests therein. The Reporting Persons may be deemed to be a director and officer of the Issuer by virtue of Paul Jacobi, an employee of Wexford Capital, serving as a director and officer of the Issuer.

	Wexford Capital LP, By: Wexford GP LLC, its general partner, By: Mark E. Ahern, Vice President and Assistant Secretary	06/22/2026
	Wexford GP LLC, By: Mark E. Ahern, Vice President and Assistant Secretary	06/22/2026
	Charles E. Davidson	06/22/2026
	Joseph M. Jacobs	06/22/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Wexford-related entities do in this Form 4 for MAMMOTH ENERGY (TUSK)?

The filing shows Wexford-affiliated entities made a large open-market purchase of Mammoth Energy common stock and completed internal share restructurings. These moves increased reported indirect ownership and reallocated shares among managed entities without additional cash consideration in the restructuring steps.

How many MAMMOTH ENERGY (TUSK) shares were bought in the open market?

Entities associated with Wexford Capital bought 4,019,574 shares of Mammoth Energy common stock in an open-market transaction. The reported average purchase price was $2.6043 per share, and this holding is reported as indirect ownership through Wexford-managed investment vehicles.

What are the "J" code transactions reported in the TUSK Form 4?

The "J" code transactions represent other acquisitions or dispositions, totaling 7,427,563 shares. They are described as in-kind distributions from MEH SUB LLC to pay fees and expenses owed to Wexford Capital and as restructurings that do not involve a purchase, sale, or any additional consideration.

How many MAMMOTH ENERGY (TUSK) shares are shown as held after these transactions?

After the transactions, one line shows 10,620,789 shares following the open-market purchase, another shows 6,601,215 shares after restructuring, and 1,451,034 shares are reported as held directly. These positions reflect both indirect interests through Wexford entities and direct holdings.

Do Wexford Capital and related parties claim beneficial ownership of TUSK shares?

The filing states Wexford Capital, Wexford GP, and the named individuals may be deemed beneficial owners due to their control roles and shared voting and dispositive power. However, they expressly disclaim beneficial ownership except to the extent of any pecuniary interest in those securities.

Were the TUSK share restructurings cash transactions?

No. The footnotes explain that the restructurings are in-kind distributions from MEH SUB LLC to satisfy fees and expenses and do not involve a purchase, sale, or any additional consideration. They are non-cash reallocations of existing share positions among related entities.