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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165 hedge funds and large institutions have $1.5B invested in Summit Materials, Inc. Class A Common Stock in 2016 Q3 according to their latest regulatory filings, with 32 funds opening new positions, 80 increasing their positions, 44 reducing their positions, and 22 closing their positions.

Holders
165
Holders Change
+10
Holders Change %
+6.45%
% of All Funds
4.41%
Holding in Top 10
3
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-40%
% of All Funds
0.08%
New
32
Increased
80
Reduced
44
Closed
22
Calls
$18.4M
Puts
$3.89M
Net Calls
+$14.5M
Net Calls Change
+$8.33M

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$53.7M
2
Point72 Asset Management
2
Point72 Asset Management
Connecticut
$57.1M
3
RCM
3
Roystone Capital Management
New York
$27.7M
4
Millennium Management
4
Millennium Management
New York
$35.5M
5
Adage Capital Partners
5
Adage Capital Partners
Massachusetts
$62.1M

Top Sellers

1
LHC
1
Lodge Hill Capital
New York
$0
2
TP
2
Theleme Partners
United Kingdom
$0
3
CIA
3
Caledonia Investments (Australia)
Australia
$0
4
Allianz Asset Management
4
Allianz Asset Management
Germany
$0
5
Federated Hermes
5
Federated Hermes
Pennsylvania
$9.08M
Name Market Value Shares Shares
Change 		Shares
Change %
Loomis, Sayles & Company
51
Loomis, Sayles & Company
Massachusetts
$7.57M 407,897 -11,522 -3%
SAM
52
Scopus Asset Management
New York
$7.53M 405,643 +405,643 New
ZP
53
Zimmer Partners
New York
$7.29M 393,096 +393,096 New
AAP
54
Ardsley Advisory Partners
Connecticut
$7.16M 386,000 +386,000 New
HCM
55
Highbridge Capital Management
New York
$7.14M 385,000 +339,341 +743%
Luther King Capital Management (LKCM)
56
Luther King Capital Management (LKCM)
Texas
$7.1M 382,808 -117,808 -24%
IP
57
Interval Partners
New York
$7.02M 378,510 +236,778 +167%
Bank of New York Mellon
58
Bank of New York Mellon
New York
$6.94M 374,347 +8,452 +2%
ZC
59
Zelman Capital
Ohio
$6.87M 370,500 -235,934 -39%
GC
60
Guggenheim Capital
Illinois
$5.92M 318,899 +287,070 +902%
American Century Companies
61
American Century Companies
Missouri
$5.87M 316,267 +38,142 +14%
GGHC
62
Gilder Gagnon Howe & Co
New York
$5.55M 299,300 -27,493 -8%
Charles Schwab
63
Charles Schwab
California
$5.36M 288,915 +65,246 +29%
BIM
64
BlackRock Investment Management
Delaware
$5.32M 286,777 +50,594 +21%
Victory Capital Management
65
Victory Capital Management
Texas
$4.66M 250,930 +250,930 New
UOC
66
UBS O'Connor
Illinois
$4.49M 242,047 +242,047 New
Wells Fargo
67
Wells Fargo
California
$4.35M 234,686 -16,753 -7%
IA
68
Icon Advisers
Colorado
$4.19M 226,000 +226,000 New
NIP
69
Nicholas Investment Partners
California
$3.85M 207,482 -46,750 -18%
PPA
70
Parametric Portfolio Associates
Washington
$3.43M 184,758 +7,556 +4%
ECP
71
Electron Capital Partners
New York
$3.04M 164,015 +164,015 New
California State Teachers Retirement System (CalSTRS)
72
California State Teachers Retirement System (CalSTRS)
California
$2.99M 161,226 +28,600 +22%
Parallax Volatility Advisers
73
Parallax Volatility Advisers
California
$2.99M 160,956 +160,956 New
PI
74
Putnam Investments
Massachusetts
$2.96M 159,492 +43,711 +38%
PCM
75
Palisade Capital Management
New Jersey
$2.54M 136,891 -12,699 -8%
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