BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

Mountaineer Partners Management, LLC's Holding History (CIK: 0001730532)

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

Q4 2025
Shares 94,091 Value ($000) $9,681 Avg Close $112.38 Range $94.35 - $130.42
Q3 2025
Shares 60,759 Value ($000) $7,367 Avg Close $132.67 Range $115.57 - $151.03
Q2 2025
Shares 62,464 Value ($000) $7,289 Avg Close $115.39 Range $102.60 - $131.32
Q1 2025
Shares 58,211 Value ($000) $7,273 Avg Close $145.49 Range $119.65 - $175.12
Q4 2024
Shares 55,875 Value ($000) $7,986 Avg Close $176.96 Range $141.03 - $201.53
Q3 2024
Shares 55,875 Value ($000) $10,832 Avg Close $165.82 Range $130.75 - $203.14
Q4 2020
Shares 250,327 Value ($000) $10,216 Avg Close $35.42 Range $29.73 - $42.84
Q3 2020
Shares 297,867 Value ($000) $9,716 Avg Close $27.14 Range $19.03 - $33.45
Q2 2020
Shares 269,267 Value ($000) $5,573 Avg Close $18.07 Range $10.58 - $24.65
Q1 2020
Shares 272,267 Value ($000) $3,330 Avg Close $22.59 Range $9.00 - $28.43
Q4 2019
Shares 322,500 Value ($000) $8,194 Avg Close $23.90 Range $19.61 - $26.07
Q3 2019
Shares 366,300 Value ($000) $7,537 Avg Close $18.64 Range $16.06 - $20.79
Q2 2019
Shares 511,300 Value ($000) $8,621 Avg Close $14.96 Range $13.30 - $17.00
Q1 2019
Shares 538,100 Value ($000) $7,179 Avg Close $13.14 Range $10.56 - $14.95
Q4 2018
Shares 526,600 Value ($000) $5,745 Avg Close $12.56 Range $10.15 - $14.83