Position in BLDR
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$1,627,911
-$3,924 QoQ
Shares Held
19,773
+24.7% QoQ
Ownership
0.018%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in BLDR Over Time
Shares Held
Position Value (USD)
Position in Building Products & Equipment
Industrials · as of Mar 31, 2026SIMPLEX TRADING, LLC holds $5,250,058 across 18 Building Products & Equipment names. BLDR ranks #1 (31.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BLDR |
Builders FirstSource, Inc.
This page
|
19,773 | $1,627,911 | |
| 2 | OC |
Owens Corning
|
12,601 | $1,363,680 | |
| 3 | TREX |
Trex Co Inc
|
25,372 | $924,048 | |
| 4 | FBIN |
Fortune Brands Innovations, Inc.
|
19,161 | $746,704 | |
| 5 | MAS |
Masco Corp /De/
|
5,048 | $304,747 | |
| 6 | LMB |
Limbach Holdings, Inc.
|
830 | $64,781 | |
| 7 | AAON |
Aaon, Inc.
|
607 | $50,229 | |
| 8 | SPXC |
SPX Technologies, Inc.
|
241 | $48,185 |
All Filings in BLDR
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18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,627,911 | 19,773 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $1,631,835 | 15,860 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $2,902,725 | 23,940 | Shares | Sole | 2025-11-12 | |
| 2025-03-31 | $292,484 | 2,341 | Shares | Sole | 2025-05-12 | |
| 2024-09-30 | $631,402 | 3,257 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $202,770 | 1,465 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $166,422 | 798 | Shares | Sole | 2024-04-25 | |
| 2022-09-30 | $13,139 | 223 | Shares | Sole | 2022-11-04 | |
| 2022-06-30 | $330,469 | 6,154 | Shares | Sole | 2022-08-03 | |
| 2022-03-31 | $562,143 | 8,710 | Shares | Sole | 2022-05-02 | |
| 2021-12-31 | $154,877 | 1,807 | Shares | Sole | 2022-02-23 | |
| 2021-09-30 | $1,011,672 | 19,553 | Shares | Sole | 2021-10-28 | |
| 2021-06-30 | $826,836 | 19,382 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $2,706,106 | 58,359 | Shares | Sole | 2021-04-26 | |
| 2020-12-31 | $137,162 | 3,361 | Shares | Sole | 2021-02-02 | |
| 2020-09-30 | $425,527 | 13,045 | Shares | Sole | 2020-10-14 | |
| 2020-06-30 | $259,453 | 12,534 | Shares | Sole | 2020-07-13 | |
| 2020-03-31 | $14,663 | 1,199 | Shares | Sole | 2020-04-29 | |
| No filing history on record for this holder in this stock. | ||||||