Alberta Investment Management Corp (AIMCo)’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q1
Sell
-200,000
Closed -$10.1M 893
2024
Q4
$10.1M Buy
200,000
+120,950
+153% +$6.12M 0.07% 186
2024
Q3
$3.09M Sell
79,050
-24,098
-23% -$941K 0.03% 333
2024
Q2
$3.78M Buy
103,148
+17,377
+20% +$636K 0.04% 243
2024
Q1
$3.82M Buy
85,771
+9,605
+13% +$428K 0.04% 284
2023
Q4
$2.93M Hold
76,166
0.03% 329
2023
Q3
$2.37M Buy
76,166
+9,640
+14% +$300K 0.03% 403
2023
Q2
$2.52M Sell
66,526
-8,323
-11% -$315K 0.02% 482
2023
Q1
$2.13M Buy
74,849
+17,432
+30% +$497K 0.02% 534
2022
Q4
$1.63M Buy
57,417
+9,264
+19% +$263K 0.01% 685
2022
Q3
$1.13M Buy
48,153
+18,697
+63% +$440K 0.01% 868
2022
Q2
$675K Sell
29,456
-30,412
-51% -$697K ﹤0.01% 994
2022
Q1
$1.83M Buy
59,868
+31,977
+115% +$976K 0.01% 803
2021
Q4
$1.1M Buy
+27,891
New +$1.1M 0.01% 732
2020
Q3
Sell
-10,577
Closed -$167K 1167
2020
Q2
$167K Buy
+10,577
New +$167K ﹤0.01% 1009
2017
Q1
Sell
-110,998
Closed -$2.56M 926
2016
Q4
$2.56M Buy
110,998
+18,826
+20% +$434K 0.02% 412
2016
Q3
$1.64M Buy
92,172
+12,951
+16% +$230K 0.02% 469
2016
Q2
$1.55M Buy
+79,221
New +$1.55M 0.02% 456