TUSK: Plaumann Mark Lawrence discloses a purchase

By AlphaYouPublished Sep 23, 2026Form 4

Stocks in this disclosure

Reported activity

Plaumann Mark Lawrence

Reporting filer

Plaumann Mark Lawrence reported Purchase in MAMMOTH ENERGY SERVICES, INC.: 5000 units of Common Stock, dated 2026-09-16. The full Form 4 contains 1 transaction entry.

Disclosed: Sep 17, 2026

Reported details

1 entry

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	Plaumann Mark Lawrence	2026-09-16	P	Purchase	5000	3	5,000	1 day	Filed terms security Title: Common Stock transaction Date: 2026-09-16 transaction Form Type: 4 transaction Code: P equity Swap Involved: 0 transaction Shares: 5000 transaction Price Per Share: 3 id: F1 transaction Acquired Disposed Code: A shares Owned Following Transaction: 5000 id: F2 direct Or Indirect Ownership: D

Common Stock

Owner: Plaumann Mark Lawrence
Date: 2026-09-16
Code: P
Action: Purchase
Quantity: 5000
Price: 3
Following holdings: 5,000
Reporting delay: 1 day
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-16
transaction Form Type: 4
transaction Code: P
equity Swap Involved: 0
transaction Shares: 5000
transaction Price Per Share: 3
id: F1
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 5000
id: F2
direct Or Indirect Ownership: D

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
Plaumann Mark Lawrence: Director.
F1: The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices within a range. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.
F2: Of the shares reported herein, 2,100 shares are held in a Roth IRA and 2,900 shares are held in a traditional IRA, each for the benefit of the Reporting Person.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Common Stock

Plaumann Mark Lawrence

2026-09-16

Purchase

5000

5,000

1 day

Filed terms

security Title: Common Stock
transaction Date: 2026-09-16
transaction Form Type: 4
transaction Code: P
equity Swap Involved: 0
transaction Shares: 5000
transaction Price Per Share: 3
id: F1
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 5000
id: F2
direct Or Indirect Ownership: D

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

Plaumann Mark Lawrence: Director.

F1: The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices within a range. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

F2: Of the shares reported herein, 2,100 shares are held in a Roth IRA and 2,900 shares are held in a traditional IRA, each for the benefit of the Reporting Person.