Who owns Mammoth Energy Services Inc (TUSK)?
18 US mutual funds and ETFs from 14 fund families reported a position in TUSK for the quarter ending 2026-06-30. Against their own report a quarter earlier, 3 raised shares, 2 opened a new position, 2 cut and 36 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Vanguard Index Funds | 2 | 67.4% |
| Ea Series Trust | 1 | 15.7% |
| Ishares Trust | 1 | 5.6% |
| Bridgeway Funds, Inc. | 2 | 5.3% |
| Russell Investment Funds | 1 | 1.6% |
| Jnl Series Trust | 2 | 0.9% |
Tracked managers holding TUSK
None of the managers Prior Moves tracks on 13F reports TUSK in its latest filing.
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about TUSK. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
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