Security key
86614U100
SUMMIT MATERIALS INC -CL A - COMMON STOCK (SUM)
CUSIP: 86614U100
Q2 2025 13F Holders as of 30 Jun 2025
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 190
- Total 13F value
- $6,988
- Share change
- -12,239
- SEC-reported price per share
- $44.56
- Number of holders
- 2
- Value change
- -$564,204
- Number of sells
- 6
- Shares outstanding
- 178,464,433
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
2
Top holders
2
SUM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Summit Materials, Inc. SEC filings
Summit Materials, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 86614U100
Recent filing periods:
Ownership snapshot
Top reported holders of SUM - SUMMIT MATERIALS INC -CL A - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PRICE T ROWE ASSOCIATES I...
Disclosed value leader
Argos SEM, LLC
Comparable rows
8/13
Latest evidence
31 Mar 2025
13D/G
13F
3/4/5
Lead comparable stake: 3%
5 rows are not safely comparable across share classes.
13D/G row: PRICE T ROWE ASSOCIATES INC /MD/
Showing 1-6 of 13 holder rows.
Quick read
PRICE T ROWE ASSOCIATES INC /MD/ leads the comparable SEC ownership view at 3%.
8 of 13 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens PRICE T ROWE ASSOCIATES INC /MD/'s linked filing trail.
Comparable ownership
Top 5
PRICE T ROWE ASSOCIATES INC /MD/
3%
Orion Portfolio Solutions, LLC
0%
Strengthening Families & Communit...
0%
PRINCIPAL SECURITIES, INC.
0%
Deutsche Girozentrale DekaBank
0%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 13 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
T. Rowe Price Associates, Inc.
|
3%
|
$270,908,474
5,353,933 shares
|
$0 | 31 Dec 2024 |
| Orion Portfolio Solutions, LLC |
13F
Company
|
0%
|
$258,971
5,118 shares
|
— | 31 Mar 2025 |
| Strengthening Families & Communities, LLC |
13F
Company
|
0%
|
$117,994
3,223 shares
|
— | 31 Mar 2025 |
| PRINCIPAL SECURITIES, INC. |
13F
Company
|
0%
|
$97,253
1,922 shares
|
— | 31 Mar 2025 |
| Deutsche Girozentrale DekaBank |
13F
Individual
|
0%
|
$78,000
1,753 shares
|
— | 31 Mar 2025 |
| WFA Asset Management Corp |
13F
Company
|
0%
|
$8,380
188 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
2
Shares
190
Rows available
2
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q4 2025 Across Filers
Q4 2025 holders
1
Q2 2025 holders
2
Holder diff
1
| Investor | Q4 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q4 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend