Jim Simons’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 | $18.1M | Sell |
220,241
-314,500
| -59% | -$33.6M | 0.03% | 694 |
|
|
2025
Q4 | $55M | Buy |
+534,741
| New | +$60.1M | 0.09% | 266 |
|
|
2025
Q3 | – | Sell |
-262,341
| Closed | -$30.6M | – | 3511 |
|
|
2025
Q2 | $30.6M | Buy |
+262,341
| New | +$30.3M | 0.04% | 532 |
|
|
2025
Q1 | – | Sell |
-69,641
| Closed | -$9.95M | – | 3473 |
|
|
2024
Q4 | $9.95M | Buy |
+69,641
| New | +$12.3M | 0.01% | 1021 |
|
|
2024
Q2 | – | Sell |
-70,600
| Closed | -$14.7M | – | 3513 |
|
|
2024
Q1 | $14.7M | Sell |
70,600
-173,400
| -71% | -$32M | 0.02% | 789 |
|
|
2023
Q4 | $40.7M | Sell |
244,000
-107,941
| -31% | -$14.3M | 0.06% | 353 |
|
|
2023
Q3 | $43.8M | Buy |
351,941
+20,841
| +6% | +$2.88M | 0.07% | 302 |
|
|
2023
Q2 | $45M | Sell |
331,100
-642,741
| -66% | -$71.5M | 0.06% | 345 |
|
|
2023
Q1 | $86.5M | Buy |
973,841
+248,100
| +34% | +$19.7M | 0.11% | 213 |
|
|
2022
Q4 | $47.1M | Sell |
725,741
-45,500
| -6% | -$2.84M | 0.06% | 356 |
|
|
2022
Q3 | $45.4M | Buy |
771,241
+74,600
| +11% | +$4.66M | 0.06% | 352 |
|
|
2022
Q2 | $37.4M | Sell |
696,641
-49,000
| -7% | -$3M | 0.04% | 449 |
|
|
2022
Q1 | $48.1M | Buy |
745,641
+319,408
| +75% | +$23.2M | 0.06% | 364 |
|
|
2021
Q4 | $36.5M | Sell |
426,233
-16,708
| -4% | -$1.13M | 0.05% | 430 |
|
|
2021
Q3 | $22.9M | Sell |
442,941
-323,800
| -42% | -$15.8M | 0.03% | 613 |
|
|
2021
Q2 | $32.7M | Buy |
+766,741
| New | +$35.6M | 0.04% | 501 |
|
|
2021
Q1 | – | Sell |
-413,200
| Closed | -$16.9M | – | 3316 |
|
|
2020
Q4 | $16.9M | Sell |
413,200
-712,019
| -63% | -$25.2M | 0.02% | 841 |
|
|
2020
Q3 | $36.7M | Sell |
1,125,219
-1,798,300
| -62% | -$48.8M | 0.04% | 479 |
|
|
2020
Q2 | $60.5M | Sell |
2,923,519
-1,432,000
| -33% | -$25.9M | 0.05% | 375 |
|
|
2020
Q1 | $53.3M | Buy |
4,355,519
+228,700
| +6% | +$5.17M | 0.05% | 370 |
|
|
2019
Q4 | $105M | Buy |
4,126,819
+1,394,719
| +51% | +$33.3M | 0.08% | 266 |
|
|
2019
Q3 | $56.2M | Buy |
2,732,100
+963,300
| +54% | +$18M | 0.05% | 465 |
|
|
2019
Q2 | $29.8M | Buy |
1,768,800
+807,400
| +84% | +$12.1M | 0.03% | 750 |
|
|
2019
Q1 | $12.8M | Buy |
961,400
+432,532
| +82% | +$5.68M | 0.01% | 1230 |
|
|
2018
Q4 | $5.77M | Buy |
528,868
+260,838
| +97% | +$3.28M | 0.01% | 1622 |
|
|
2018
Q3 | $3.94M | Buy |
+268,030
| New | +$4.54M | ﹤0.01% | 1949 |
|
|
2018
Q2 | – | Sell |
-774,000
| Closed | -$15.4M | – | 3263 |
|
|
2018
Q1 | $15.4M | Sell |
774,000
-218,400
| -22% | -$4.63M | 0.02% | 1101 |
|
|
2017
Q4 | $21.6M | Sell |
992,400
-122,800
| -11% | -$2.33M | 0.02% | 894 |
|
|
2017
Q3 | $20.1M | Buy |
1,115,200
+558,100
| +100% | +$9M | 0.02% | 902 |
|
|
2017
Q2 | $8.54M | Sell |
557,100
-46,593
| -8% | -$696K | 0.01% | 1371 |
|
|
2017
Q1 | $8.99M | Buy |
603,693
+232,893
| +63% | +$3.01M | 0.01% | 1310 |
|
|
2016
Q4 | $4.07M | Sell |
370,800
-5,200
| -1% | -$56.4K | 0.01% | 1800 |
|
|
2016
Q3 | $4.33M | Buy |
+376,000
| New | +$4.73M | 0.01% | 1697 |
|
|
2016
Q2 | – | Sell |
-1,022,500
| Closed | -$11.5M | – | 3332 |
|
|
2016
Q1 | $11.5M | Buy |
1,022,500
+295,900
| +41% | +$2.56M | 0.02% | 1037 |
|
|
2015
Q4 | $8.05M | Buy |
726,600
+286,900
| +65% | +$3.65M | 0.02% | 1138 |
|
|
2015
Q3 | $5.58M | Buy |
439,700
+114,197
| +35% | +$1.62M | 0.01% | 1313 |
|
|
2015
Q2 | $4.18M | Buy |
325,503
+313,103
| +2,525% | +$3.82M | 0.01% | 1553 |
|
|
2015
Q1 | $83K | Buy |
+12,400
| New | +$77.4K | ﹤0.01% | 3030 |
|
|
2014
Q4 | – | Sell |
-29,488
| Closed | -$161K | – | 2957 |
|
|
2014
Q3 | $161K | Buy |
+29,488
| New | +$192K | ﹤0.01% | 2583 |
|
|
2014
Q1 | – | Sell |
-88,200
| Closed | -$629K | – | 2827 |
|
|
2013
Q4 | $629K | Buy |
+88,200
| New | +$599K | ﹤0.01% | 2279 |
|
Other funds holding BLDR
VCM
VPM
Jim Simons's BLDR Position: Q1 2026 in Review
Jim Simons reduced its Builders FirstSource (BLDR) stake by 59% in Q1 2026, selling an estimated $33.6M and leaving 220,241 shares worth $18.1M. The position accounts for 0.03% of the portfolio, ranked #694.
Jim Simons first reported a position in BLDR in Q4 2013 and has held it in 40 quarters since. The position peaked at $105M in Q4 2019. 722 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.
- Jim Simons held 220,241 shares of Builders FirstSource worth $18.1M as of Q1 2026.
- Jim Simons sold 314,500 Builders FirstSource shares in Q1 2026, an estimated $33.6M.
- Builders FirstSource made up 0.03% of Jim Simons's portfolio in Q1 2026, its #694 holding.
- Jim Simons first reported a position in Builders FirstSource in Q4 2013 and has held it in 40 quarters since.
- Jim Simons's Builders FirstSource position peaked at $105M in Q4 2019.
- 722 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.