Millennium Management
SUM

Millennium Management’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Millennium Management’s Portfolio SUM Stock Details SUM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2021
Q2 		– Sell
-127,125
Closed -$3.5M – 7237
2021
Q1 		$3.5M Buy
+127,125
New +$3.19M ﹤0.01% 2972
2017
Q2 		– Sell
-206,248
Closed -$4.94M – 3955
2017
Q1 		$4.94M Buy
206,248
+134,061
+186% +$3.15M 0.01% 1460
2016
Q4 		$1.67M Buy
+72,187
New +$1.51M ﹤0.01% 1978

Other funds holding SUM

SFCL
Strengthening Families & Communities LLC Boston, Massachusetts $401M AUM 33.17% 1-Year Est. Return
PS
Principal Securities Des Moines, Iowa $6.82B AUM 17.15% 1-Year Est. Return
DekaBank Deutsche Girozentrale
DekaBank Deutsche Girozentrale Frankfurt, Germany $60.6B AUM 23.27% 1-Year Est. Return
WAM
WFA Asset Management Whitefish Bay, Wisconsin $184M AUM 12.29% 1-Year Est. Return
IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return
HNB
Huntington National Bank Columbus, Ohio $18.1B AUM 24.69% 1-Year Est. Return

Millennium Management's SUM Position: Q1 2025 in Review

Millennium Management sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q1 2025, closing a stake of 1,333,349 shares — an estimated $67.5M sold.

Millennium Management first reported a position in SUM in Q1 2015 and held it in 36 quarters. The position peaked at $105M in Q1 2024. 7 funds tracked by Wall St. Rank hold SUM as of Q1 2025.

  • Millennium Management reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q1 2025 after selling out during the quarter.
  • Millennium Management sold 1,333,349 Summit Materials, Inc. Class A Common Stock shares in Q1 2025, an estimated $67.5M.
  • Millennium Management first reported a position in Summit Materials, Inc. Class A Common Stock in Q1 2015 and held it in 36 quarters.
  • Millennium Management's Summit Materials, Inc. Class A Common Stock position peaked at $105M in Q1 2024.
  • 7 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q1 2025.

Based on Millennium Management's 13F filing for Q1 2025, filed 15 May 2025.