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 $3.48B invested in Summit Materials, Inc. Class A Common Stock in 2017 Q2 according to their latest regulatory filings, with 31 funds opening new positions, 89 increasing their positions, 75 reducing their positions, and 37 closing their positions.

Holders
211
Holders Change
-7
Holders Change %
-3.21%
% of All Funds
5.27%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.12%
New
31
Increased
89
Reduced
75
Closed
37
Calls
$12.1M
Puts
$819K
Net Calls
+$11.3M
Net Calls Change
-$10.7M

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$122M
2
TBC
2
Three Bays Capital
Massachusetts
$75.9M
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$87M
4
PI
4
Putnam Investments
Massachusetts
$68.9M
5
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$86.3M

Top Sellers

1
Citadel Advisors
1
Citadel Advisors
Florida
$12.7M
2
BlackRock
2
BlackRock
New York
$190M
3
RCM
3
Roystone Capital Management
New York
$3.17M
4
MCM
4
Melvin Capital Management
New York
$72.2M
5
LW
5
Linscomb Wealth
Texas
$14.5M
Name Market Value Shares Shares
Change 		Shares
Change %
Alyeska Investment Group
51
Alyeska Investment Group
Illinois
$18M 625,000 -575,000 -48%
UBS AM
52
UBS AM
Illinois
$17.7M 614,339 -45,342 -7%
SCM
53
SG Capital Management
Illinois
$17.5M 606,691 -105,385 -15%
BNP Paribas Asset Management
54
BNP Paribas Asset Management
France
$17.4M 601,785 +127,793 +27%
Norges Bank
55
Norges Bank
Norway
$16.5M 570,570 +10,547 +2%
NM
56
Nokota Management
New York
$14.8M 511,300 -36,500 -7%
LW
57
Linscomb Wealth
Texas
$14.5M 501,403 -750,000 -60%
KCM
58
Kornitzer Capital Management
Kansas
$14.4M 499,650 +16,290 +3%
CS
59
Credit Suisse
Switzerland
$14.3M 495,770 -168,105 -25%
Charles Schwab
60
Charles Schwab
California
$14M 485,311 +42,275 +10%
GGHC
61
Gilder Gagnon Howe & Co
New York
$13.2M 457,533 +114,441 +33%
Citadel Advisors
62
Citadel Advisors
Florida
$12.7M 438,697 -1,890,443 -81%
BA
63
Broadview Advisors
Wisconsin
$12.6M 437,125 -3,600 -0.8%
PMAM
64
Picton Mahoney Asset Management
Ontario, Canada
$12.4M 429,308 +14,600 +4%
Lord, Abbett & Co
65
Lord, Abbett & Co
New Jersey
$12.2M 422,615 +422,615 New
Royal Bank of Canada
66
Royal Bank of Canada
Ontario, Canada
$11.8M 409,691 +15,103 +4%
Loomis, Sayles & Company
67
Loomis, Sayles & Company
Massachusetts
$11.6M 400,452 -3,363 -0.8%
BA
68
Boston Advisors
Massachusetts
$11.6M 400,150 -100 -0%
NCGI
69
Next Century Growth Investors
Minnesota
$11.5M 398,992 -139,026 -26%
CM
70
Castleark Management
Illinois
$11M 379,570 +379,570 New
AIM
71
Artemis Investment Management
United Kingdom
$11M 379,454 +4,066 +1%
ClearBridge Investments
72
ClearBridge Investments
New York
$10.8M 374,923 -1,158 -0.3%
TCIM
73
TIAA CREF Investment Management
New York
$10.5M 364,814 +15,816 +5%
ACH
74
ArrowMark Colorado Holdings
Colorado
$10.1M 351,500 – –
SCM
75
Sandler Capital Management
New York
$10.1M 348,527 -122,520 -26%
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