# MAMMOTH ENERGY SVCS INC COM

MAMMOTH ENERGY SVCS INC COM is a security (CUSIP 56155L908) tracked across SEC portfolio filings. 3 institutional managers reported $2K on Form 13F as of 2026-03-31.

## Summary

- Issuer: MAMMOTH ENERGY SVCS INC
- Class: COM
- CUSIP: 56155L908
- 13F holders: 3
- 13F value: $2K
- 13F period: 2026-03-31
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $1K | — |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $735 | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |

## More

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