{"transactions":[{"id":4576363,"issuer":{"id":6519,"kind":"organization","name":"MAMMOTH ENERGY SERVICES, INC.","symbol":"TUSK"},"owners":[{"id":181576,"kind":"person","name":"Mammoth Energy Holdings LLC","position":1,"cik":"0001623083","reported_name":"Mammoth Energy Holdings LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21373,"kind":"organization","name":"WEXFORD CAPITAL LP","position":2,"cik":"0001048462","reported_name":"WEXFORD CAPITAL LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21374,"kind":"organization","name":"Wexford GP LLC","position":3,"cik":"0001472112","reported_name":"Wexford GP LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21375,"kind":"person","name":"DAVIDSON CHARLES E","position":4,"cik":"0001001391","reported_name":"DAVIDSON CHARLES E","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21376,"kind":"person","name":"JACOBS JOSEPH","position":5,"cik":"0001048485","reported_name":"JACOBS JOSEPH","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.01","published_at":"2016-10-21T20:12:08.000Z","date":"2016-10-19","kind":"sale","acquired":false,"shares":171797,"price":14.0625,"value":2415895.3125,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were sold to the underwriters in the IPO at a price of $14.0625 per share."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"The shares of common stock were received by MEH in connection with MEH's contribution of its membership interest in Mammoth Energy Partners LLC to the Issuer completed prior to the IPO, which contribution was approved by the board of directors of the Issuer in advance."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"This form is jointly filed by MEH, the owner of the common stock reported on this line, Wexford, Wexford GP LLC (\"Wexford GP\"), Charles E. Davidson (\"Davidson\") and Joseph M. Jacobs (\"Jacobs\"). The common stock shown as beneficially owned by Davidson, Jacobs, Wexford GP and Wexford, reflect the common stock that were owned of record by MEH. Wexford serves as manager for MEH and as such may be deemed to share beneficial ownership of the common stock beneficially owned by MEH, but disclaims such beneficial ownership to the extent such beneficial ownership exceeds its pecuniary interest. (*continued under Footnote (5) below)."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"(*continued from Footnote (4) above) Wexford GP, as the general partner of Wexford, may be deemed to share beneficial ownership of the common stock beneficially owned by MEH, but disclaims such beneficial ownership to the extent such beneficial ownership exceeds its pecuniary interest. Messrs. Davidson and Jacobs, as the controlling persons of Wexford GP, may be deemed to share beneficial ownership of any common stock beneficially owned by MEH for which Wexford serves as manager, but disclaim such beneficial ownership to the extent such beneficial ownership exceeds their pecuniary interest."}],"balance_after":20445923,"source":{"system":"sec-edgar","filing":"0001140361-16-083276","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1001391/000114036116083276/doc1.xml","form_type":"4"}}]}