Citadel Advisors’s Builders FirstSource BLDR Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$13.9M Sell
168,700
-64,800
-28% -$6.92M ﹤0.01% 2780
2025
Q4
$24M Sell
233,500
-63,900
-21% -$7.18M ﹤0.01% 2152
2025
Q3
$36.1M Buy
297,400
+76,400
+35% +$10.1M 0.01% 1691
2025
Q2
$25.8M Buy
221,000
+15,700
+8% +$1.81M ﹤0.01% 1851
2025
Q1
$25.7M Buy
205,300
+15,700
+8% +$2.28M ﹤0.01% 1753
2024
Q4
$27.1M Buy
189,600
+7,300
+4% +$1.29M ﹤0.01% 1848
2024
Q3
$35.3M Buy
182,300
+43,200
+31% +$7.16M 0.01% 1524
2024
Q2
$19.3M Sell
139,100
-7,000
-5% -$1.19M ﹤0.01% 2035
2024
Q1
$30.5M Sell
146,100
-138,600
-49% -$25.6M 0.01% 1650
2023
Q4
$47.5M Sell
284,700
-15,500
-5% -$2.06M 0.01% 1232
2023
Q3
$37.4M Buy
300,200
+87,900
+41% +$12.1M 0.01% 1311
2023
Q2
$28.9M Sell
212,300
-293,700
-58% -$32.7M 0.01% 1514
2023
Q1
$44.9M Buy
506,000
+288,300
+132% +$22.8M 0.01% 1168
2022
Q4
$14.1M Buy
217,700
+19,500
+10% +$1.22M ﹤0.01% 2372
2022
Q3
$11.7M Sell
198,200
-47,100
-19% -$2.94M ﹤0.01% 2546
2022
Q2
$13.2M Sell
245,300
-5,200
-2% -$319K ﹤0.01% 2330
2022
Q1
$16.2M Buy
250,500
+127,000
+103% +$9.22M ﹤0.01% 2252
2021
Q4
$10.6M Buy
123,500
+17,800
+17% +$1.21M ﹤0.01% 2983
2021
Q3
$5.47M Sell
105,700
-123,100
-54% -$6.01M ﹤0.01% 4138
2021
Q2
$9.76M Buy
228,800
+166,400
+267% +$7.72M ﹤0.01% 3117
2021
Q1
$2.89M Buy
62,400
+13,500
+28% +$575K ﹤0.01% 5532
2020
Q4
$2M Sell
48,900
-22,200
-31% -$786K ﹤0.01% 5362
2020
Q3
$2.32M Buy
71,100
+19,300
+37% +$524K ﹤0.01% 4456
2020
Q2
$1.07M Buy
51,800
+18,700
+56% +$338K ﹤0.01% 5712
2020
Q1
$405K Sell
33,100
-4,600
-12% -$104K ﹤0.01% 6813
2019
Q4
$958K Buy
37,700
+6,700
+22% +$160K ﹤0.01% 5657
2019
Q3
$638K Sell
31,000
-35,100
-53% -$654K ﹤0.01% 6331
2019
Q2
$1.11M Buy
66,100
+30,300
+85% +$453K ﹤0.01% 5519
2019
Q1
$478K Sell
35,800
-31,900
-47% -$419K ﹤0.01% 6860
2018
Q4
$739K Buy
67,700
+9,000
+15% +$113K ﹤0.01% 5783
2018
Q3
$862K Buy
58,700
+39,100
+199% +$662K ﹤0.01% 5807
2018
Q2
$358K Buy
19,600
+2,600
+15% +$49.7K ﹤0.01% 6916
2018
Q1
$337K Sell
17,000
-1,600
-9% -$33.9K ﹤0.01% 6554
2017
Q4
$405K Buy
18,600
+6,700
+56% +$127K ﹤0.01% 5976
2017
Q3
$214K Sell
11,900
-5,000
-30% -$80.6K ﹤0.01% 6586
2017
Q2
$259K Hold
16,900
﹤0.01% 6150
2017
Q1
$252K Buy
16,900
+4,300
+34% +$55.6K ﹤0.01% 6142
2016
Q4
$138K Buy
+12,600
New +$137K ﹤0.01% 6544
2016
Q3
Sell
-11,400
Closed -$128K 7238
2016
Q2
$128K Buy
+11,400
New +$132K ﹤0.01% 6088

Other funds holding BLDR

Citadel Advisors's BLDR Position: Q1 2026 in Review

Citadel Advisors reduced its Builders FirstSource (BLDR) stake by 58% in Q1 2026, selling an estimated $79.4M and leaving 537,269 shares worth $44.2M. The position accounts for 0.01% of the portfolio, ranked #1475.

Citadel Advisors first reported a position in BLDR in Q2 2013 and has held it in 50 quarters since. The position peaked at $132M in Q4 2025. 721 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

  • Citadel Advisors held 537,269 shares of Builders FirstSource worth $44.2M as of Q1 2026.
  • Citadel Advisors sold 743,719 Builders FirstSource shares in Q1 2026, an estimated $79.4M.
  • Builders FirstSource made up 0.01% of Citadel Advisors's portfolio in Q1 2026, its #1475 holding.
  • Citadel Advisors first reported a position in Builders FirstSource in Q2 2013 and has held it in 50 quarters since.
  • Citadel Advisors's Builders FirstSource position peaked at $132M in Q4 2025.
  • 721 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.