Security key
12008R107
Builders FirstSource, Inc. - Common Stock (BLDR)
CUSIP: 12008R107
Q4 2020 13F Holders as of 31 Dec 2020
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 134,858,257
- Total 13F value
- $5,503,716,969
- Share change
- +7,798,701
- Put/Call ratio
- 54%
- SEC-reported price per share
- $40.81
- Number of holders
- 303
- Value change
- +$335,864,194
- Number of buys
- 142
- Number of sells
- 152
- 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
Q4 2020
Institutions
303
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 Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2020
13F
Lead comparable stake: 13%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 13%.
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 Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
13%
VANGUARD GROUP INC
11%
FMR LLC
7.1%
Conifer Management, L.L.C.
6.5%
Select Equity Group, L.P.
4.9%
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 Finance, Inc. |
13F
Company
|
13%
|
$454,598,000
13,936,104 shares
|
— | 30 Sep 2020 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$395,367,000
12,120,379 shares
|
— | 30 Sep 2020 |
| FMR LLC |
13F
Company
|
7.1%
|
$256,487,000
7,862,883 shares
|
— | 30 Sep 2020 |
| Conifer Management, L.L.C. |
13F
Company
|
6.5%
|
$234,864,000
7,200,000 shares
|
— | 30 Sep 2020 |
| Select Equity Group, L.P. |
13F
Company
|
4.9%
|
$178,427,877
5,469,892 shares
|
— | 30 Sep 2020 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
3.5%
|
$126,774,000
3,886,616 shares
|
— | 30 Sep 2020 |
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 Q4 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
303
Shares
134,858,257
Rows available
303
| 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 Q4 2020 vs Q3 2020 Across Filers
Q3 2020 holders
284
Q4 2020 holders
303
Holder diff
19
| Investor | Q3 2020 Shares | Q4 2020 Shares | Share Diff | Share Chg % | Q3 2020 value | Q4 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend