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Mammoth Energy Services
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Overview Fund Activity

107 hedge funds and large institutions have $1.06B invested in Mammoth Energy Services in 2018 Q1 according to their latest regulatory filings, with 52 funds opening new positions, 23 increasing their positions, 25 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
107
Holders Change
+44
Holders Change %
+69.84%
% of All Funds
2.46%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
52
Increased
23
Reduced
25
Closed
8
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$17.7M
2
PCM
2
Penn Capital Management
Pennsylvania
$11.5M
3
DCM
3
Driehaus Capital Management
Illinois
$8.82M
4
Renaissance Technologies
4
Renaissance Technologies
New York
$6.36M
5
NC
5
Northpointe Capital
Michigan
$9.93M

Top Sellers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$42M
2
TAM
2
THB Asset Management
Connecticut
$4.9M
3
CAM
3
Cortina Asset Management
Wisconsin
$7.94M
4
American Century Companies
4
American Century Companies
Missouri
$578K
5
Boston Partners
5
Boston Partners
Massachusetts
$2.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
CS
51
Credit Suisse
Switzerland
$526K +$526K +16,430 New
AA
52
ALPS Advisors
Colorado
$521K +$521K +16,236 New
UBS Group
53
UBS Group
Switzerland
$494K +$481K +14,995 +3,702%
MAM
54
Martingale Asset Management
Massachusetts
$488K +$488K +15,214 New
TA
55
Teachers Advisors
New York
$483K -$15.7K -490 -3%
BRF
56
B. Riley Financial
California
$481K +$481K +15,000 New
Squarepoint
57
Squarepoint
New York
$478K +$478K +14,900 New
Swiss National Bank
58
Swiss National Bank
Switzerland
$458K +$57.7K +1,800 +14%
TI
59
Trexquant Investment
Connecticut
$441K +$441K +13,767 New
MWNA
60
Marshall Wace North America
New York
$420K +$420K +13,105 New
D.E. Shaw & Co
61
D.E. Shaw & Co
New York
$413K +$413K +12,887 New
AG
62
Algert Global
California
$397K +$397K +12,381 New
California State Teachers Retirement System (CalSTRS)
63
California State Teachers Retirement System (CalSTRS)
California
$393K -$17.4K -543 -4%
EA
64
Emerald Advisers
Pennsylvania
$387K +$387K +12,077 New
AllianceBernstein
65
AllianceBernstein
Tennessee
$356K +$356K +11,100 New
CEP
66
Chicago Equity Partners
Illinois
$354K +$354K +11,053 New
NFG
67
Next Financial Group
Texas
$353K +$353K +11,000 New
Two Sigma Investments
68
Two Sigma Investments
New York
$347K +$347K +10,811 New
SRAM
69
Stone Ridge Asset Management
New York
$336K – – –
II
70
Ibex Investors
Colorado
$314K +$314K +9,798 New
VRS
71
Virginia Retirement Systems
Virginia
$298K +$298K +9,300 New
State Board of Administration of Florida Retirement System
72
State Board of Administration of Florida Retirement System
Florida
$273K +$273K +8,527 New
RhumbLine Advisers
73
RhumbLine Advisers
Massachusetts
$271K +$271K +8,444 New
Brown Advisory
74
Brown Advisory
Maryland
$271K +$271K +8,464 New
PPA
75
Parametric Portfolio Associates
Washington
$263K +$263K +8,207 New
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