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

CUSIP: 56155L108

Q4 2018 13F Holders as of 31 Dec 2018

Security identity
Security type / class
Equity / Common Stock, $0.01 par value
Shares outstanding
48,165,948
Holder snapshot
Total 13F shares
36,425,113
Share change
+1,354,618
Total reported value
$655,369,091
Put/Call ratio
104%
Reported price per share
$17.98
Number of holders
127
Value change
+$19,861,102
Number of buys
61
Number of sells
69

Security key

56155L108

Report period

Q4 2018

Institutions

127

Top holders

10

TUSK full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2019 Previous quarter: Q3 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
30 Sep 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%
$639,865,000
21,988,473 shares
 — 30 Sep 2018
VANGUARD GROUP INC
13F
Company
13F
1.7%
$24,292,000
834,739 shares
 — 30 Sep 2018
BlackRock Finance, Inc.
13F
Company
13F
1.6%
$22,642,000
778,113 shares
 — 30 Sep 2018
PRINCIPAL FINANCIAL GROUP INC
13F
Company
13F
1.6%
$22,524,000
774,015 shares
 — 30 Sep 2018
Russell Investments Group, Ltd.
13F
Company
13F
1.5%
$21,645,000
743,870 shares
 — 30 Sep 2018
JANUS HENDERSON GROUP PLC
13F
Company
13F
1.5%
$21,285,000
731,454 shares
 — 30 Sep 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 Q4 2018

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

Institutions
127
Shares
36,425,113
Rows available
127
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 Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders
135
Q4 2018 holders
127
Holder diff
-8
Investor Q3 2018 Shares Q4 2018 Shares Share Diff Share Chg % Q3 2018 value Q4 2018 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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