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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211 hedge funds and large institutions have $3.32B invested in Summit Materials, Inc. Class A Common Stock in 2018 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 86 increasing their positions, 75 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
211
Holders Change
-18
Holders Change %
-7.86%
% of All Funds
4.84%
Holding in Top 10
5
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-44.44%
% of All Funds
0.11%
New
28
Increased
86
Reduced
75
Closed
44
Calls
$22.2M
Puts
$5.85M
Net Calls
+$16.4M
Net Calls Change
+$10.6M

Top Buyers

1
CTA
1
Carillon Tower Advisers
Florida
$50.4M
2
EAM
2
Eagle Asset Management
Florida
$75.5M
3
TBC
3
Three Bays Capital
Massachusetts
$115M
4
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$128M
5
Janus Henderson Group
5
Janus Henderson Group
United Kingdom
$154M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$116M
2
MCM
2
Melvin Capital Management
New York
$0
3
Victory Capital Management
3
Victory Capital Management
Texas
$20M
4
IAM
4
Impala Asset Management
Florida
$6M
5
AIM
5
Artemis Investment Management
United Kingdom
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
IA
201
IFP Advisors
Florida
$6K +$1.65K +59 +38%
CHP
202
Cable Hill Partners
Oregon
$4K +$4K +160 New
GFP
203
Gryphon Financial Partners
Ohio
$2K -$2.5K -75 -56%
IFAM
204
Institutional & Family Asset Management
Colorado
$2K +$2K +63 New
FHA
205
Flagship Harbor Advisors
Massachusetts
$2K +$2K +103 New
RCAG
206
Rehmann Capital Advisory Group
Michigan
$1.02K +$1.02K +40 New
SFM
207
Signet Financial Management
New Jersey
$1K -$17.9K -394 -95%
TWA
208
TCI Wealth Advisors
Arizona
$1K – – –
AIL
209
AGF Investments LLC
Ontario, Canada
$17 +$17 +643 New
MCM
210
Melvin Capital Management
New York
– -$38.6M -1,296,675 Closed
AIM
211
Artemis Investment Management
United Kingdom
– -$25.3M -849,395 Closed
CM
212
Castleark Management
Illinois
– -$10.3M -346,478 Closed
TPCM
213
Three Peaks Capital Management
Colorado
– -$6.63M -222,587 Closed
SAM
214
Scopus Asset Management
New York
– -$5.37M -180,212 Closed
GAM
215
Gotham Asset Management
New York
– -$4.88M -163,842 Closed
LCG
216
Lisanti Capital Growth
New York
– -$3.26M -109,385 Closed
PMAM
217
Picton Mahoney Asset Management
Ontario, Canada
– -$3.25M -109,185 Closed
EGM
218
Engineers Gate Manager
New York
– -$2.28M -76,563 Closed
QIM
219
Quantitative Investment Management
Virginia
– -$2.12M -71,190 Closed
LMIM
220
Lockheed Martin Investment Management
Maryland
– -$1.96M -65,747 Closed
DCM
221
Driehaus Capital Management
Illinois
– -$1.92M -64,391 Closed
ARTA
222
A.R.T. Advisors
New York
– -$1.91M -64,310 Closed
AR
223
Advisory Research
Illinois
– -$1.89M -63,596 Closed
RA
224
Royce & Associates
New York
– -$1.76M -58,931 Closed
CAM
225
Covenant Asset Management
New Jersey
– -$1.31M -43,926 Closed
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