Security key
12008R107
Builders FirstSource, Inc. - Common Stock (BLDR)
CUSIP: 12008R107
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 112,010,421
- Total 13F value
- $13,582,076,301
- Share change
- +3,452,803
- Put/Call ratio
- 107%
- SEC-reported price per share
- $121.25
- Number of holders
- 769
- Value change
- +$442,877,412
- Number of buys
- 353
- Number of sells
- 400
- Shares outstanding
- 110,722,736
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
769
Top holders
10
BLDR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Builders FirstSource, Inc. SEC filings
Builders FirstSource, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 12008R107
Recent filing periods:
Ownership snapshot
Top reported holders of BLDR - Builders FirstSource, Inc. - 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
BlackRock, Inc.
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
15/15
Latest evidence
22 Aug 2025
13D/G
13F
3/4/5
Lead comparable stake: 7.5%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 7.5%.
15 of 15 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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
7.5%
Timothy D. Johnson
0.07%
VANGUARD GROUP INC
11%
FMR LLC
11%
STATE STREET CORP
4.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
7.5%
|
$1,024,400,907
8,472,425 shares
|
$0 | 31 Mar 2025 |
| Timothy D. Johnson |
3/4/5
EVP & General Counsel
|
0.07%
|
$9,921,470
73,151 shares
|
-$181,063 | 22 Aug 2025 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$1,465,080,640
12,555,323 shares
|
— | 30 Jun 2025 |
| FMR LLC |
13F
Company
|
11%
|
$1,356,752,078
11,626,978 shares
|
— | 30 Jun 2025 |
| STATE STREET CORP |
13F
Company
|
4.5%
|
$586,548,470
5,026,553 shares
|
— | 30 Jun 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
3.1%
|
$394,855,972
3,383,803 shares
|
— | 30 Jun 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 Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
769
Shares
112,010,421
Rows available
769
| 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 Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
767
Q3 2025 holders
769
Holder diff
2
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend