BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

Rossby Financial, LCC's Holding History (CIK: 0002056510)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,989 Value ($000) $205 Avg Close $112.38 Range $94.35 - $130.42

Q3 2025

Shares 2,060 Value ($000) $261 Avg Close $132.67 Range $115.57 - $151.03

Q2 2025

Shares 1,812 Value ($000) $211 Avg Close $115.39 Range $102.60 - $131.32

Q1 2025

Shares 1,782 Value ($000) $216 Avg Close $145.49 Range $119.65 - $175.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,989	$205	$112.38	$94.35 - $130.42
Q3 2025	2,060	$261	$132.67	$115.57 - $151.03
Q2 2025	1,812	$211	$115.39	$102.60 - $131.32
Q1 2025	1,782	$216	$145.49	$119.65 - $175.12