David Barr is Director at Builders FirstSource, Inc. (BLDR). They have made 36 open-market trades across 4 companies since 2006, most recently 2026-03-20.
CIK 0001239309
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
20 open-market purchases totalling $226.0M since 2006, against 16 sales. Across 20 scored buys the stock is up 1.8% at ninety days, and 1.7 points ahead of the S&P over the same stretch.
20 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 5% | 95% | 95% |
| Avg Move | -20.1% | +1.7% | +1.8% |
| Alpha | -14.6% | +1.5% | +1.7% |
| Scored | 20 | 20 | 20 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BLDR | BUY | 2018-08-31 | 2018-09-04 | $15.63 | $938K | +3.9% | -11.3% | -10.0% |
| BLDR | SELL | 2016-05-24 | 2016-05-25 | $10.40 | $275.9M | +1.9% | -8.2% | +9.9% |
| BLDR | SELL | 2015-11-25 | 2015-11-25 | $13.05 | $91.3M | -21.3% | +2.4% | -33.5% |
| ARMK | SELL | 2015-08-21 | 2015-08-24 | $32.30 | $210.5M | +0.1% | +2.2% | +2.2% |
| BLDR | SELL | 2015-07-31 | 2015-08-03 | $12.22 | $56.2M | -21.3% | +2.4% | +2.4% |
| ARMK | SELL | 2015-05-27 | 2015-05-29 | $31.47 | $236.0M | +0.1% | +2.2% | +2.2% |
| ARMK | SELL | 2015-03-26 | 2015-03-26 | $32.16 | $183.8M | +0.1% | +2.2% | +2.2% |
| ARMK | BUY | 2015-02-23 | 2015-02-25 | $29.88 | $220.1M | +0.1% | +2.2% | +2.2% |
| ARMK | SELL | 2014-12-17 | 2014-12-19 | $27.02 | $228.8M | +0.1% | +2.2% | +2.2% |
| ARMK | SELL | 2014-06-04 | 2014-06-06 | $24.54 | $126.3M | +0.1% | +2.2% | +2.2% |
| ARMK | SELL | 2013-12-17 | 2013-12-18 | $18.90 | $48.9M | +0.1% | +2.2% | +2.2% |
| BLDR | BUY | 2012-06-07 | 2012-06-11 | $3.71 | $30K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-06-04 | 2012-06-06 | $3.54 | $146K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-05-30 | 2012-06-01 | $3.95 | $19K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-05-24 | 2012-05-29 | $3.97 | $127K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-05-21 | 2012-05-23 | $3.72 | $211K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-05-16 | 2012-05-18 | $4.02 | $187K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-05-07 | 2012-05-09 | $3.93 | $235K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-03-07 | 2012-03-09 | $3.14 | $71K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-03-02 | 2012-03-06 | $3.12 | $136K | -21.3% | +2.4% | +2.4% |
| BLDR | BUY | 2012-02-28 | 2012-03-01 | $3.11 | $311K | -21.3% | +2.4% | +2.4% |
| PPO | SELL | 2011-03-23 | 2011-03-24 | $52.07 | $219.5M | N/A | N/A | N/A |
| PPO | SELL | 2010-12-13 | 2010-12-15 | $38.51 | $121.6M | N/A | N/A | N/A |
| TDG | SELL | 2009-09-08 | 2009-09-23 | $44.88 | $731K | -3.1% | +0.7% | +0.7% |
| TDG | SELL | 2009-02-19 | 2009-02-20 | $34.20 | $92.3M | -3.1% | +0.7% | +0.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.