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SUM

Summit Materials, Inc. Class A Common Stock

Delisted

SUM was delisted on the 10th of February, 2025.

3 hedge funds and large institutions have $140K invested in Summit Materials, Inc. Class A Common Stock in 2025 Q3 according to their latest regulatory filings, with 1 funds opening new positions, increasing their positions, reducing their positions, and 0 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,906% more capital invested

Capital invested by funds: $6.99K → $140K (+$133K)

50% more funds holding

Funds holding: 23 (+1)

Holders
3
Holders Change
+1
Holders Change %
+50%
% of All Funds
0.04%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
1
Increased
Reduced
Closed
Calls
Puts
Net Calls
Net Calls Change

Top Sellers

No sellers this quarter

SUM Hedge Fund Activity: Q3 2025 in Review

3 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in Summit Materials, Inc. Class A Common Stock (SUM) for Q3 2025, worth a combined $140K — up 1,906% from $6.99K a quarter earlier.

Buyers outnumbered sellers: 1 fund opened new SUM positions and 0 closed out — a net gain of 1 holder — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Strengthening Families & Communities LLC, opening a new position worth an estimated $133K.

  • 3 institutional investors held Summit Materials, Inc. Class A Common Stock (SUM) as of Q3 2025, up from 2 in Q2 2025.
  • Funds reported $140K of Summit Materials, Inc. Class A Common Stock stock for Q3 2025, up 1,906% quarter-over-quarter.
  • 1 fund opened new Summit Materials, Inc. Class A Common Stock positions in Q3 2025 and 0 closed out, a net change of +1 holder.
  • The largest Summit Materials, Inc. Class A Common Stock buyer in Q3 2025 was Strengthening Families & Communities LLC, an estimated $133K added.

Based on aggregated 13F filings for Q3 2025.