MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

HARBOUR INVESTMENTS, INC.'s Holding History (CIK: 0000810121)

Note: Option positions (PUT/CALL) are excluded.

Q1 2023

Shares 490 Value ($000) $2 Avg Close $5.95 Range $3.75 - $8.74

Q4 2022

Shares 490 Value ($000) $4 Avg Close $5.69 Range $3.51 - $8.79

Q3 2021

Shares 205 Value ($000) $1 Avg Close $3.56 Range $2.44 - $5.08

Q2 2021

Shares 205 Value ($000) $1 Avg Close $4.12 Range $2.93 - $5.89

Q1 2021

Shares 205 Value ($000) $1 Avg Close $5.06 Range $3.67 - $7.27

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	490	$2	$5.95	$3.75 - $8.74
Q4 2022	490	$4	$5.69	$3.51 - $8.79
Q3 2021	205	$1	$3.56	$2.44 - $5.08
Q2 2021	205	$1	$4.12	$2.93 - $5.89
Q1 2021	205	$1	$5.06	$3.67 - $7.27