Skip to main content

PEAK6 LLC

Position in BLDR — Builders FirstSource, Inc.

CIK 1389958 AUSTIN, TX

Position in BLDR

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$311,125
-$877,666 QoQ
Shares Held
3,779
-67.3% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2024
5 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BLDR Over Time

Shares Held

Position Value (USD)

Derivatives in BLDR

reported options exposure · as of Mar 31, 2026
CallValue
$32,932
CallShares
400
PutValue
$922,096
PutShares
11,200

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Building Products & Equipment

Industrials · as of Jun 30, 2026

PEAK6 LLC holds $12,080,773 across 8 Building Products & Equipment names.

# Ticker Company Shares Value (USD) Open

All Filings in BLDR

Export CSV
15 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $311,125 3,779
2026-03-31 $32,932 400
2026-03-31 $922,096 11,200
2025-12-31 $3,169,012 30,800
2025-12-31 $1,188,791 11,554
2025-12-31 $3,426,237 33,300
2025-09-30 $2,278,530 18,792
2025-09-30 $1,321,625 10,900
2025-09-30 $5,529,000 45,600
2025-03-31 $17,916,396 143,400
2025-03-31 $13,880,834 111,100
2025-03-31 $3,751,198 30,024
2024-12-31 $14,964,771 104,700
2024-12-31 $26,613,566 186,200
2024-12-31 $12,343,291 86,359