MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)

CUSIP: 56155L108

Q1 2019 13F Holders as of 31 Mar 2019

Security identity
Security type / class
Equity / Common Stock, $0.01 par value
Shares outstanding
48,165,948
Holder snapshot
Total 13F shares
37,036,859
Share change
+576,608
Total reported value
$616,675,400
Put/Call ratio
151%
Reported price per share
$16.65
Number of holders
134
Value change
+$8,870,807
Number of buys
68
Number of sells
65

Security key

56155L108

Report period

Q1 2019

Institutions

134

Top holders

10

TUSK full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2019 Previous quarter: Q4 2018 MAMMOTH ENERGY SERVICES, INC. SEC filings MAMMOTH ENERGY SERVICES, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder
WEXFORD CAPITAL LP
13D/G signal
—
Evidence rows
15
Latest as of
31 Dec 2018
13F Lead comparable stake: 46% Showing 1-6 of 15 holder rows.
Holder Evidence Ownership % Position 12M Net Δ As of
WEXFORD CAPITAL LP
13F
Company
13F
46%
$395,353,000
21,988,473 shares
 — 31 Dec 2018
Russell Investments Group, Ltd.
13F
Company
13F
2.9%
$25,292,000
1,406,624 shares
 — 31 Dec 2018
Boston Partners
13F
Company
13F
1.9%
$16,197,000
900,820 shares
 — 31 Dec 2018
VANGUARD GROUP INC
13F
Company
13F
1.8%
$15,418,000
857,491 shares
 — 31 Dec 2018
BlackRock Finance, Inc.
13F
Company
13F
1.6%
$14,284,000
794,379 shares
 — 31 Dec 2018
PRINCIPAL FINANCIAL GROUP INC
13F
Company
13F
1.5%
$13,400,000
745,262 shares
 — 31 Dec 2018
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
134
Shares
37,036,859
Rows available
134
Investor Option Weight % Change % Reported value * Price Shares Share Change Activity Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.

Compare Q1 2019 vs Q4 2018 Across Filers

Q4 2018 holders
127
Q1 2019 holders
134
Holder diff
7
Investor Q4 2018 Shares Q1 2019 Shares Share Diff Share Chg % Q4 2018 value Q1 2019 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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