SUM

Summit Materials, Inc. Class A Common Stock
SUM

Overview Fund Activity
Delisted

SUM was delisted on the 10th of February, 2025.

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215 hedge funds and large institutions have $4.03B invested in Summit Materials, Inc. Class A Common Stock in 2017 Q3 according to their latest regulatory filings, with 36 funds opening new positions, 85 increasing their positions, 71 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
215
Holders Change
+4
Holders Change %
+1.9%
% of All Funds
5.37%
Holding in Top 10
10
Holding in Top 10 Change
+5
Holding in Top 10 Change %
+100%
% of All Funds
0.25%
New
36
Increased
85
Reduced
71
Closed
31
Calls
$5.05M
Puts
$1.88M
Net Calls
+$3.16M
Net Calls Change
-$8.09M

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$193M
2
Deutsche Bank
2
Deutsche Bank
Germany
$117M
3
Jennison Associates
3
Jennison Associates
New York
$166M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$135M
5
TBC
5
Three Bays Capital
Massachusetts
$120M

Top Sellers

1
TCM
1
TimesSquare Capital Management
New York
$58.7M
2
Goldman Sachs
2
Goldman Sachs
New York
$68M
3
Point72 Asset Management
3
Point72 Asset Management
Connecticut
$27.9M
4
MCM
4
Melvin Capital Management
New York
$58.5M
5
DKCM
5
Davidson Kempner Capital Management
New York
$16M
Name Holding Trade Value Shares
Change 		Shares
Change %
AIG
126
American International Group
New York
$2.3M +$172K +5,536 +8%
UBS Group
127
UBS Group
Switzerland
$2.28M -$149K -4,795 -6%
MSTVIM
128
Messner & Smith Theme Value Investment Management
California
$2.21M -$28.7K -923 -1%
LCG
129
Lisanti Capital Growth
New York
$2.16M +$2.16M +69,490 New
Barclays
130
Barclays
United Kingdom
$2.12M +$95K +3,060 +5%
MAG
131
Millrace Asset Group
Pennsylvania
$2.11M +$2.11M +68,062 New
Citigroup
132
Citigroup
New York
$2.11M -$7.84M -252,343 -79%
LMIM
133
Lockheed Martin Investment Management
Maryland
$2.04M – – –
IECM
134
Intrinsic Edge Capital Management
Illinois
$1.96M -$2.88M -92,691 -59%
DC
135
Davenport & Co
Virginia
$1.76M +$1.76M +56,512 New
NAMA
136
Nikko Asset Management Americas
New York
$1.75M +$179K +5,774 +11%
GC
137
Guggenheim Capital
Illinois
$1.66M -$12.1K -390 -0.7%
ARTA
138
A.R.T. Advisors
New York
$1.58M +$323K +10,415 +26%
BC
139
Barnett & Company
Tennessee
$1.53M -$28.8K -928 -2%
CAM
140
Covenant Asset Management
New Jersey
$1.35M +$1.35M +43,366 New
HW
141
Hancock Whitney
Mississippi
$1.33M +$1.33M +42,755 New
PCMI
142
Princeton Capital Management Inc
New Jersey
$1.19M +$66.2K +2,131 +6%
PCM
143
Prelude Capital Management
New York
$1.01M +$196K +6,316 +24%
MAP
144
Moody Aldrich Partners
Massachusetts
$1M +$135K +4,342 +16%
TRSOTSOK
145
Teachers Retirement System of the State of Kentucky
Kentucky
$1M +$101K +3,247 +11%
Macquarie Group
146
Macquarie Group
Australia
$999K +$999K +32,175 New
State of New Jersey Common Pension Fund D
147
State of New Jersey Common Pension Fund D
New Jersey
$801K +$801K +25,781 New
AAP
148
Ardsley Advisory Partners
Connecticut
$801K +$801K +25,781 New
SC
149
Skylands Capital
Wisconsin
$796K -$2.64M -85,129 -77%
SEC
150
Seven Eight Capital
New York
$769K +$660K +21,244 +606%
4 5
6
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