Shay Capital LLC

Position in BLDR — Builders FirstSource, Inc.

CIK 1723643 NEW YORK, NY

Position in BLDR

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,275,090

+$89,538 QoQ

Shares Held

14,250

-1.0% QoQ

Ownership

0.013%

of shares outstanding

% of Portfolio

0.14%

of 13F equity value

Holder Rank

#286

of 658 holders

Holding Since

Mar 2021

6 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

Shay Capital LLC holds $3,558,590 across 3 Building Products & Equipment names. BLDR ranks #2 (35.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MAIR	Madison Air Solutions Corp	55,000	$2,145,000
2	BLDR	Builders FirstSource, Inc. This page	14,250	$1,275,090
3	AIRJW	AirJoule Technologies Corp.	25,000	$138,500

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,275,090	14,250	-1.0%	Shares	Sole	2026-08-14
2026-03-31	$1,185,552	14,400	+380.0%	Shares	Sole	2026-05-15
2025-09-30	$363,750	3,000	+53.8%	Shares	Sole	2025-11-14
2024-03-31	$406,672	1,950	-97.3%	Shares	Sole	2024-05-15
2021-06-30	$3,091,996	72,480	+45.0%	Shares	Sole	2021-08-13
2021-03-31	$2,318,500	50,000	—	Shares	Sole	2021-08-13
No filing history on record for this holder in this stock.