BRIDGEWAY CAPITAL MANAGEMENT, LLC
Position in TUSK — Mammoth Energy Services, Inc.
CIK 1107261
HOUSTON, TX
Position in TUSK
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$1,080,017
+$265,851 QoQ
Shares Held
332,313
0.0% QoQ
Ownership
0.690%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#11
of 94 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TUSK Over Time
Shares Held
Position Value (USD)
Position in Conglomerates
Industrials · as of Jun 30, 2026BRIDGEWAY CAPITAL MANAGEMENT, LLC holds $16,342,596 across 6 Conglomerates names. TUSK ranks #3 (6.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | DLX |
Deluxe Corp
|
530,775 | $12,674,907 | |
| 2 | BOOM |
DMC Global Inc.
|
226,962 | $1,318,649 | |
| 3 | TUSK |
Mammoth Energy Services, Inc.
This page
|
332,313 | $1,080,017 | |
| 4 | NNBR |
Nn Inc
|
169,962 | $610,163 | |
| 5 | RCMT |
Rcm Technologies, Inc.
|
21,342 | $602,484 | |
| 6 | HHS |
Harte Hanks Inc
|
26,100 | $56,376 |
All Filings in TUSK
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,080,017 | 332,313 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $814,166 | 332,313 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $758,483 | 409,991 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $893,017 | 389,964 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $981,271 | 350,454 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $684,797 | 335,685 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $1,380,822 | 460,274 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $1,649,321 | 403,257 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $1,309,057 | 399,103 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,432,423 | 393,523 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $1,619,417 | 363,098 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $1,649,649 | 355,528 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $1,474,193 | 305,216 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $694,612 | 164,600 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $1,423,790 | 164,600 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $561,286 | 164,600 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $729,300 | 331,500 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $818,961 | 384,489 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $706,139 | 387,989 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $1,457,956 | 501,016 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $2,187,135 | 476,500 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $2,414,216 | 453,800 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $2,098,175 | 471,500 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $754,400 | 471,500 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $556,370 | 471,500 | Shares | Sole | 2020-08-31 | |
| 2020-03-31 | $263,198 | 351,400 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||