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Blalock Williams’s Builders FirstSource BLDR Stock Holding History

Blalock Williams’s Portfolio BLDR Stock Details BLDR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$312K Buy
3,795
+106
+3% +$11.3K 0.24% 93
2025
Q4 		$380K Buy
3,689
+465
+14% +$52.3K 0.3% 71
2025
Q3 		$391K Buy
3,224
+168
+5% +$22.3K 0.34% 75
2025
Q2 		$357K Hold
3,056
– – 0.36% 74
2025
Q1 		$382K Buy
+3,056
New +$445K 0.43% 68

Other funds holding BLDR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Blalock Williams's BLDR Position: Q1 2026 in Review

Blalock Williams increased its Builders FirstSource (BLDR) stake by 2.9% in Q1 2026, buying an estimated $11.3K and bringing the position to 3,795 shares worth $312K. The position accounts for 0.24% of the portfolio, ranked #93.

Blalock Williams first reported a position in BLDR in Q1 2025 and has held it in 5 quarters since. The position peaked at $391K in Q3 2025. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

  • Blalock Williams held 3,795 shares of Builders FirstSource worth $312K as of Q1 2026.
  • Blalock Williams bought 106 Builders FirstSource shares in Q1 2026, an estimated $11.3K.
  • Builders FirstSource made up 0.24% of Blalock Williams's portfolio in Q1 2026, its #93 holding.
  • Blalock Williams first reported a position in Builders FirstSource in Q1 2025 and has held it in 5 quarters since.
  • Blalock Williams's Builders FirstSource position peaked at $391K in Q3 2025.
  • 719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on Blalock Williams's 13F filing for Q1 2026, filed 14 May 2026.