In-kind share distribution to Mammoth Energy (TUSK) director Lancaster

Rhea-AI Filing Summary

Mammoth Energy Services director Phillip Lancaster reported an internal share restructuring. On June 26, 2026, 68,152 shares of Common Stock were involved in a transaction coded as an “other acquisition or disposition,” described as an in-kind distribution from MEH SUB LLC.

The footnote states this distribution did not involve a purchase or sale of securities or any additional consideration. Following the transaction, Lancaster directly owns 159,445 shares of Mammoth Energy Services common stock.

Insights

Equity governance analyst

Filing shows an internal in-kind share distribution with no cash.

The Form 4 for Mammoth Energy Services director Phillip Lancaster records 68,152 shares of Common Stock in a transaction classified as “other acquisition or disposition.” A footnote explains this was an in-kind distribution from MEH SUB LLC, managed by Wexford Capital LP.

The disclosure specifies there was no purchase, sale, or additional consideration, indicating a non-market, internal equity reallocation rather than a directional bet on the stock. After the transaction, Lancaster directly holds 159,445 shares, so the filing mainly updates how his ownership is structured rather than signaling a change in investment view.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Lancaster Phillip

Role null

Type	Security	Shares	Price	Value
Other	Common Stock	68,152	$0.00	--

Holdings After Transaction: Common Stock — 159,445 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Other transaction shares: 68,152 shares Holdings after transaction: 159,445 shares Transaction price per share: $0.0000 per share +2 more

5 metrics

Other transaction shares 68,152 shares Common Stock involved in J-code transaction on June 26, 2026

Holdings after transaction 159,445 shares Direct ownership of Mammoth Energy common stock after restructuring

Transaction price per share $0.0000 per share Non-cash in-kind distribution with no additional consideration

Transaction code J Classified as other acquisition or disposition

Restructuring shares 68,152 shares Reported as restructuring-related in transaction summary

Key Terms

in-kind distribution, Common Stock, other acquisition or disposition, Form 4, +1 more

5 terms

in-kind distribution financial

"Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP"

Common Stock financial

"security_title: "Common Stock" and 68,152 shares were reported"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

other acquisition or disposition financial

"transaction_code_description: "Other acquisition or disposition""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Wexford Capital LP financial

"MEH SUB LLC, an entity managed by Wexford Capital LP"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/01/2026 - 04:57 PM Accepted by SEC EDGAR 07/01/2026 - 04:56 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^*

Lancaster Phillip

(Last) (First) (Middle)

14201 CALIBER DRIVE

SUITE 300

(Street)

OKLAHOMA CITY 73134

(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		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026

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

X	Form filed by One Reporting Person
	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	06/26/2026		J(1)		68,152	A	$0	159,445	D

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

Explanation of Responses:

1. Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Remarks:

	/s/ Mark Layton as attorney-in-fact for Phillip Lancaster	07/01/2026
	** 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 insider transaction did Mammoth Energy (TUSK) director Phillip Lancaster report?

Phillip Lancaster reported an “other acquisition or disposition” involving 68,152 shares of Mammoth Energy common stock. A footnote explains it was an in-kind distribution from MEH SUB LLC, not a market purchase or sale and with no additional consideration.

Did Phillip Lancaster buy or sell Mammoth Energy (TUSK) shares in this Form 4?

The Form 4 does not show a traditional buy or sell. The 68,152-share movement is classified as an “other” transaction, described as an in-kind distribution from MEH SUB LLC that did not involve a purchase, sale, or additional consideration in the market.

How many Mammoth Energy (TUSK) shares does Phillip Lancaster hold after the transaction?

Following the reported in-kind distribution, Phillip Lancaster directly owns 159,445 shares of Mammoth Energy Services common stock. This figure reflects his updated direct ownership position after the internal restructuring described in the Form 4 footnote.

What is the significance of the in-kind distribution noted in the Mammoth Energy (TUSK) Form 4?

The in-kind distribution represents a transfer of 68,152 shares from MEH SUB LLC to Lancaster without cash consideration. It reflects an internal ownership reallocation rather than a market trade, so it primarily updates ownership records instead of signaling trading sentiment.

Who is MEH SUB LLC in relation to the Mammoth Energy (TUSK) insider transaction?

MEH SUB LLC is identified as the entity making the in-kind distribution of 68,152 Mammoth Energy shares. It is described as being managed by Wexford Capital LP, and the transaction involved no purchase, sale, or additional cash consideration according to the Form 4 footnote.