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
$11.6M Buy
140,400
+52,600
+60% +$5.62M ﹤0.01% 3053
2025
Q4
$9.03M Sell
87,800
-14,700
-14% -$1.65M ﹤0.01% 3398
2025
Q3
$12.4M Sell
102,500
-154,300
-60% -$20.5M ﹤0.01% 2938
2025
Q2
$30M Buy
256,800
+86,300
+51% +$9.96M 0.01% 1680
2025
Q1
$21.3M Buy
170,500
+14,400
+9% +$2.1M ﹤0.01% 1967
2024
Q4
$22.3M Sell
156,100
-13,600
-8% -$2.41M ﹤0.01% 2054
2024
Q3
$32.9M Sell
169,700
-119,400
-41% -$19.8M 0.01% 1591
2024
Q2
$40M Sell
289,100
-12,200
-4% -$2.07M 0.01% 1332
2024
Q1
$62.8M Buy
301,300
+92,000
+44% +$17M 0.01% 1034
2023
Q4
$34.9M Sell
209,300
-228,600
-52% -$30.4M 0.01% 1479
2023
Q3
$54.5M Buy
437,900
+144,200
+49% +$19.9M 0.01% 1002
2023
Q2
$39.9M Buy
293,700
+76,700
+35% +$8.53M 0.01% 1229
2023
Q1
$19.3M Buy
217,000
+41,500
+24% +$3.29M ﹤0.01% 1962
2022
Q4
$11.4M Sell
175,500
-4,400
-2% -$275K ﹤0.01% 2646
2022
Q3
$10.6M Buy
179,900
+25,300
+16% +$1.58M ﹤0.01% 2673
2022
Q2
$8.3M Buy
154,600
+2,100
+1% +$129K ﹤0.01% 2932
2022
Q1
$9.84M Sell
152,500
-55,900
-27% -$4.06M ﹤0.01% 2990
2021
Q4
$17.9M Buy
208,400
+72,200
+53% +$4.89M ﹤0.01% 2162
2021
Q3
$7.05M Sell
136,200
-226,100
-62% -$11M ﹤0.01% 3667
2021
Q2
$15.5M Buy
362,300
+236,198
+187% +$11M ﹤0.01% 2416
2021
Q1
$5.85M Buy
126,102
+19,402
+18% +$826K ﹤0.01% 3922
2020
Q4
$4.35M Sell
106,700
-27,800
-21% -$985K ﹤0.01% 3913
2020
Q3
$4.39M Buy
134,500
+43,800
+48% +$1.19M ﹤0.01% 3343
2020
Q2
$1.88M Buy
90,700
+12,000
+15% +$217K ﹤0.01% 4696
2020
Q1
$963K Sell
78,700
-93,200
-54% -$2.11M ﹤0.01% 5398
2019
Q4
$4.37M Buy
171,900
+72,200
+72% +$1.73M ﹤0.01% 3246
2019
Q3
$2.05M Buy
99,700
+54,400
+120% +$1.01M ﹤0.01% 4448
2019
Q2
$764K Sell
45,300
-8,000
-15% -$120K ﹤0.01% 6135
2019
Q1
$711K Sell
53,300
-9,200
-15% -$121K ﹤0.01% 6189
2018
Q4
$682K Buy
62,500
+32,100
+106% +$403K ﹤0.01% 5923
2018
Q3
$446K Sell
30,400
-6,300
-17% -$107K ﹤0.01% 6876
2018
Q2
$671K Buy
36,700
+1,300
+4% +$24.9K ﹤0.01% 5889
2018
Q1
$702K Sell
35,400
-18,900
-35% -$400K ﹤0.01% 5321
2017
Q4
$1.18M Buy
54,300
+18,700
+53% +$355K ﹤0.01% 4418
2017
Q3
$640K Buy
35,600
+12,700
+55% +$205K ﹤0.01% 4964
2017
Q2
$351K Sell
22,900
-3,000
-12% -$44.8K ﹤0.01% 5644
2017
Q1
$386K Sell
25,900
-7,300
-22% -$94.4K ﹤0.01% 5474
2016
Q4
$364K Buy
33,200
+19,700
+146% +$214K ﹤0.01% 5395
2016
Q3
$155K Sell
13,500
-5,100
-27% -$64.2K ﹤0.01% 6447
2016
Q2
$209K Buy
18,600
+2,900
+18% +$33.5K ﹤0.01% 5774
2016
Q1
$177K Buy
+15,700
New +$136K ﹤0.01% 5723

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.