AMRON ARTHUR H purchased 7.2% of their position (4.50K shares) of MAMMOTH ENERGY SERVICES, INC. on the open market
Open‑market purchase worth $14.6K — a moderate purchase. The strongest form of insider conviction signal.
P · 2 purchases
Filed: 6/15/2026ACC: 0001628280-26-043211
Director
Since Jan 2019
+4.50K
Net shares
Net buyer
$14.6K
Total acquired
2
Open market trades
2B · 0S
2
Total transactions
4.50K acquired
Non-Derivative Transactions2
Common Stock
Direct
Shares
+2.50K
Price / share
$3.22
Trade value
$8.05K
% of position
4.0%
6/11/2026
62.63K→65.14K
Common Stock
Direct
Shares
+2K
Price / share
$3.28
Trade value
$6.56K
% of position
3.1%
6/12/2026
65.14K→67.14K
Total
Net shares
+4.50K
Net value
$14.61K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 6/11/2026 | P · Purchase | +2.50K | $3.22 | $8.05K | 4.0% | 62.63K | 65.14K |
| Common Stock Direct | 6/12/2026 | P · Purchase | +2K | $3.28 | $6.56K | 3.1% | 65.14K | 67.14K |
| Total | +4.50K | $14.61K | ||||||
Derivative Transactions0
No derivative transactions reported