Position in BLDR
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$1,977,483
+$778,610 QoQ
Shares Held
24,019
+106.1% QoQ
Ownership
0.022%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
6 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 Jun 30, 2026Magnetar Financial LLC holds $3,617,056 across 6 Building Products & Equipment names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AWI |
Armstrong World Industries Inc
|
9,398 | $1,507,626 | |
| 2 | AAON |
Aaon, Inc.
|
7,350 | $932,420 | |
| 3 | APOG |
Apogee Enterprises, Inc.
|
9,207 | $421,127 | |
| 4 | JBI |
Janus International Group, Inc.
|
50,867 | $282,311 | |
| 5 | NPKI |
NPK International Inc.
|
16,645 | $264,821 | |
| 6 | ARLO |
Arlo Technologies, Inc.
|
15,486 | $208,751 |
All Filings in BLDR
Export CSV
6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,977,483 | 24,019 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $1,198,873 | 11,652 | Shares | Sole | 2026-02-17 | |
| 2024-12-31 | $5,643,590 | 39,485 | Shares | Sole | 2025-02-11 | |
| 2024-06-30 | $4,741,926 | 34,260 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,106,149 | 5,304 | Shares | Sole | 2024-05-15 | |
| 2020-09-30 | $204,266 | 6,262 | Shares | Sole | 2020-11-16 | |
| No filing history on record for this holder in this stock. | ||||||