Robotti Robert’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 | $43.1M | Buy |
523,597
+96,606
| +23% | +$10.3M | 6.72% | 2 |
|
|
2025
Q4 | $43.9M | Buy |
426,991
+13,012
| +3% | +$1.46M | 7.89% | 2 |
|
|
2025
Q3 | $50.2M | Sell |
413,979
-1,824
| -0.4% | -$242K | 8.71% | 2 |
|
|
2025
Q2 | $48.5M | Buy |
415,803
+2,051
| +0.5% | +$237K | 8.15% | 3 |
|
|
2025
Q1 | $51.7M | Buy |
413,752
+19,578
| +5% | +$2.85M | 10.36% | 2 |
|
|
2024
Q4 | $56.3M | Sell |
394,174
-3,398
| -0.9% | -$601K | 9.89% | 2 |
|
|
2024
Q3 | $77.1M | Sell |
397,572
-3,672
| -0.9% | -$609K | 11.73% | 2 |
|
|
2024
Q2 | $55.5M | Sell |
401,244
-938
| -0.2% | -$159K | 8.7% | 2 |
|
|
2024
Q1 | $83.9M | Sell |
402,182
-117,813
| -23% | -$21.8M | 11.38% | 2 |
|
|
2023
Q4 | $86.8M | Sell |
519,995
-149,761
| -22% | -$19.9M | 12.5% | 2 |
|
|
2023
Q3 | $83.4M | Sell |
669,756
-103,254
| -13% | -$14.2M | 12.25% | 2 |
|
|
2023
Q2 | $105M | Sell |
773,010
-592,612
| -43% | -$65.9M | 16.97% | 2 |
|
|
2023
Q1 | $121M | Sell |
1,365,622
-232,719
| -15% | -$18.4M | 21.35% | 2 |
|
|
2022
Q4 | $104M | Sell |
1,598,341
-128,660
| -7% | -$8.04M | 20.67% | 2 |
|
|
2022
Q3 | $102M | Sell |
1,727,001
-58,753
| -3% | -$3.67M | 24.18% | 1 |
|
|
2022
Q2 | $95.9M | Sell |
1,785,754
-8,270
| -0.5% | -$507K | 23.46% | 1 |
|
|
2022
Q1 | $116M | Sell |
1,794,024
-59,340
| -3% | -$4.31M | 23.43% | 1 |
|
|
2021
Q4 | $159M | Sell |
1,853,364
-398,363
| -18% | -$27M | 32.19% | 1 |
|
|
2021
Q3 | $117M | Sell |
2,251,727
-36,164
| -2% | -$1.77M | 26.73% | 1 |
|
|
2021
Q2 | $97.6M | Sell |
2,287,891
-177,256
| -7% | -$8.22M | 24.5% | 1 |
|
|
2021
Q1 | $114M | Buy |
2,465,147
+1,142,555
| +86% | +$48.6M | 28.84% | 1 |
|
|
2020
Q4 | $54M | Sell |
1,322,592
-5,342
| -0.4% | -$189K | 15.75% | 1 |
|
|
2020
Q3 | $43.3M | Sell |
1,327,934
-239,648
| -15% | -$6.51M | 16.71% | 1 |
|
|
2020
Q2 | $32.4M | Sell |
1,567,582
-35,937
| -2% | -$649K | 13.97% | 1 |
|
|
2020
Q1 | $19.6M | Sell |
1,603,519
-11,874
| -0.7% | -$268K | 11.51% | 2 |
|
|
2019
Q4 | $41M | Sell |
1,615,393
-160,491
| -9% | -$3.84M | 13.09% | 1 |
|
|
2019
Q3 | $36.5M | Sell |
1,775,884
-103,640
| -6% | -$1.93M | 11.14% | 2 |
|
|
2019
Q2 | $31.7M | Sell |
1,879,524
-149,439
| -7% | -$2.24M | 11.04% | 2 |
|
|
2019
Q1 | $27.1M | Sell |
2,028,963
-28,580
| -1% | -$376K | 9.55% | 2 |
|
|
2018
Q4 | $22.4M | Sell |
2,057,543
-17,662
| -0.9% | -$222K | 8.78% | 2 |
|
|
2018
Q3 | $30.5M | Buy |
2,075,205
+8,605
| +0.4% | +$146K | 8.02% | 2 |
|
|
2018
Q2 | $37.8M | Sell |
2,066,600
-15,114
| -0.7% | -$289K | 9.85% | 2 |
|
|
2018
Q1 | $41.3M | Sell |
2,081,714
-65,219
| -3% | -$1.38M | 11.43% | 2 |
|
|
2017
Q4 | $46.8M | Sell |
2,146,933
-14,525
| -0.7% | -$275K | 12.2% | 2 |
|
|
2017
Q3 | $38.9M | Sell |
2,161,458
-11,444
| -0.5% | -$185K | 10.67% | 2 |
|
|
2017
Q2 | $33.1M | Sell |
2,172,902
-2,158
| -0.1% | -$32.2K | 9.97% | 2 |
|
|
2017
Q1 | $32.4M | Buy |
2,175,060
+2,158
| +0.1% | +$27.9K | 9.57% | 2 |
|
|
2016
Q4 | $23.8M | Buy |
2,172,902
+4,445
| +0.2% | +$48.2K | 7.26% | 2 |
|
|
2016
Q3 | $25M | Buy |
2,168,457
+21,481
| +1% | +$270K | 8.56% | 2 |
|
|
2016
Q2 | $24.2M | Buy |
2,146,976
+294,982
| +16% | +$3.41M | 8.7% | 2 |
|
|
2016
Q1 | $20.9M | Buy |
1,851,994
+243,462
| +15% | +$2.11M | 7.59% | 3 |
|
|
2015
Q4 | $17.8M | Buy |
1,608,532
+8,111
| +0.5% | +$103K | 7.3% | 2 |
|
|
2015
Q3 | $20.3M | Sell |
1,600,421
-814,610
| -34% | -$11.6M | 13.5% | 1 |
|
|
2015
Q2 | $31M | Sell |
2,415,031
-404,143
| -14% | -$4.93M | 17.19% | 1 |
|
|
2015
Q1 | $18.8M | Sell |
2,819,174
-17,056
| -0.6% | -$107K | 10.84% | 1 |
|
|
2014
Q4 | $19.5M | Buy |
2,836,230
+61,732
| +2% | +$369K | 10.92% | 1 |
|
|
2014
Q3 | $15.1M | Sell |
2,774,498
-281,447
| -9% | -$1.83M | 7.48% | 3 |
|
|
2014
Q2 | $22.9M | Sell |
3,055,945
-189,759
| -6% | -$1.48M | 8.95% | 2 |
|
|
2014
Q1 | $29.5M | Sell |
3,245,704
-462,368
| -12% | -$3.75M | 11.27% | 2 |
|
|
2013
Q4 | $26.4M | Sell |
3,708,072
-514,981
| -12% | -$3.49M | 10.63% | 1 |
|
|
2013
Q3 | $24.8M | Buy |
4,223,053
+1,281,426
| +44% | +$7.65M | 9.99% | 1 |
|
|
2013
Q2 | $17.6M | Buy |
+2,941,627
| New | +$18.4M | 7.66% | 3 |
|
Other funds holding BLDR
VCM
VPM
Robotti Robert's BLDR Position: Q1 2026 in Review
Robotti Robert increased its Builders FirstSource (BLDR) stake by 23% in Q1 2026, buying an estimated $10.3M and bringing the position to 523,597 shares worth $43.1M. The position accounts for 6.72% of the portfolio, ranked #2.
Robotti Robert first reported a position in BLDR in Q2 2013 and has held it in 52 quarters since. The position peaked at $159M in Q4 2021. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.
- Robotti Robert held 523,597 shares of Builders FirstSource worth $43.1M as of Q1 2026.
- Robotti Robert bought 96,606 Builders FirstSource shares in Q1 2026, an estimated $10.3M.
- Builders FirstSource made up 6.72% of Robotti Robert's portfolio in Q1 2026, its #2 holding.
- Robotti Robert first reported a position in Builders FirstSource in Q2 2013 and has held it in 52 quarters since.
- Robotti Robert's Builders FirstSource position peaked at $159M in Q4 2021.
- 719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.
Based on Robotti Robert's 13F filing for Q1 2026, filed 13 May 2026.