← United States · Coverage record
US · SEC FORM 4
Builders FirstSource, Inc.
BLDR · NYSE · CIK 0001316835 · Consumer Cyclical · Building Products & Equipment
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
36 Form 4 transaction lines observed in the same window
1 sales · 35 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 11 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-03-13 · LEVY PAUL S.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.
Price performance
- 1M
- -5.3%
- 3M
- -24.8%
- 6M
- -38.2%
- 12M
- -56.7%
Volatility & liquidity
- Volatility
- 47.7%
- Beta
- —
- Avg daily value
- USD 150.8M
Valuation
- Market cap
- USD 5.9B
- P/E
- 13.5×
Fundamentals
- Profit margin
- 2.9%
- ROE
- 10.0%
- Industry
- Building Products & Equipment
Market data
Price data up to: 2026-10-18 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-07-23 · Status: PASS
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 9,165,569
- Previous report
- 8,907,075
- Avg daily volume
- 4,723,820
- Days to cover
- 1.9
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-03-13 | LEVY PAUL S | Purchase (P) | Common Stock, par value $0.01 per share | 50,000 | USD 87.73 | USD 4,386,500 | SEC filing ↗ |
| 2025-06-10 | Vance Todd | Purchase (P) | Common Stock, par value $0.01 per share | 1,948 | USD 115.50 | USD 224,994 | SEC filing ↗ |
| 2025-05-27 | Charles Dirkson R | Purchase (P) | Common Stock, par value $0.01 per share | 5,000 | USD 109.67 | USD 548,350 | SEC filing ↗ |
| 2025-05-09 | LEVY PAUL S | Purchase (P) | Common Stock, par value $0.01 per share | 283,517 | USD 111.21 | USD 31,529,926 | SEC filing ↗ |
| 2025-05-08 | LEVY PAUL S | Purchase (P) | Common Stock, par value $0.01 per share | 216,483 | USD 110.65 | USD 23,953,844 | SEC filing ↗ |
Form 4 evidence
88 transaction lines in the latest 365-day window; 666 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-10 | Steinke Craig Arthur | Award / grant (A) | Common Stock, par value $0.01 per share | 564 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | Renz Maria | Award / grant (A) | Common Stock, par value $0.01 per share | 489 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | OLEARY JAMES | Award / grant (A) | Common Stock, par value $0.01 per share | 564 | USD 0.00 | USD 0 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-10 | Steinke Craig Arthur | Award / grant (A) | Common Stock, par value $0.01 per share | 564 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | Renz Maria | Award / grant (A) | Common Stock, par value $0.01 per share | 489 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | OLEARY JAMES | Award / grant (A) | Common Stock, par value $0.01 per share | 564 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | LEVY PAUL S | Award / grant (A) | Common Stock, par value $0.01 per share | 1,204 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | Hayes William B | Award / grant (A) | Common Stock, par value $0.01 per share | 583 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | Charles Dirkson R | Award / grant (A) | Common Stock, par value $0.01 per share | 470 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | CHRISTOPHE CLEVELAND A | Award / grant (A) | Common Stock, par value $0.01 per share | 564 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-10 | Boydston Cory Jacobs | Award / grant (A) | Common Stock, par value $0.01 per share | 470 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-18 | Vaughn Paul | Award / grant (A) | Common Stock, par value $0.01 per share | 3,366 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-18 | Vance Todd | Award / grant (A) | Common Stock, par value $0.01 per share | 3,366 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-18 | O'Brien Matthew Coley | Award / grant (A) | Common Stock, par value $0.01 per share | 7,406 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-13 | Narayan Gayatri | Tax withholding (F) | Common Stock, par value $0.01 per share | 2,842 | USD 77.77 | USD 221,022 | SEC filing ↗ |
| 2026-06-05 | Herron Stephen J | Gift (G) | Common Stock, par value $0.01 per share | 850 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-04 | Hiller Michael | Gift (G) | Common Stock, par value $0.01 per share | 900 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-01 | Steinke Craig Arthur | Award / grant (A) | Common Stock, par value $0.01 per share | 491 | USD 76.26 | USD 37,444 | SEC filing ↗ |
| 2026-06-01 | Renz Maria | Award / grant (A) | Common Stock, par value $0.01 per share | 426 | USD 76.26 | USD 32,487 | SEC filing ↗ |
| 2026-06-01 | OLEARY JAMES | Award / grant (A) | Common Stock, par value $0.01 per share | 491 | USD 76.26 | USD 37,444 | SEC filing ↗ |
| 2026-06-01 | LEVY PAUL S | Award / grant (A) | Common Stock, par value $0.01 per share | 1,049 | USD 76.26 | USD 79,997 | SEC filing ↗ |
| 2026-06-01 | Hayes William B | Award / grant (A) | Common Stock, par value $0.01 per share | 508 | USD 76.26 | USD 38,740 | SEC filing ↗ |
| 2026-06-01 | Charles Dirkson R | Award / grant (A) | Common Stock, par value $0.01 per share | 409 | USD 76.26 | USD 31,190 | SEC filing ↗ |
| 2026-06-01 | CHRISTOPHE CLEVELAND A | Award / grant (A) | Common Stock, par value $0.01 per share | 491 | USD 76.26 | USD 37,444 | SEC filing ↗ |
| 2026-06-01 | Boydston Cory Jacobs | Award / grant (A) | Common Stock, par value $0.01 per share | 409 | USD 76.26 | USD 31,190 | SEC filing ↗ |
| 2026-06-01 | ALEXANDER MARK A | Award / grant (A) | Common Stock, par value $0.01 per share | 409 | USD 76.26 | USD 31,190 | SEC filing ↗ |
| 2026-05-14 | Steinke Craig Arthur | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-14 | Rush David E | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-14 | Renz Maria | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-14 | OLEARY JAMES | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-14 | MILGRIM BRETT N | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-14 | LEVY PAUL S | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-14 | Hayes William B | Award / grant (A) | Common Stock, par value $0.01 per share | 2,558 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | BLDR |
| CIK | 0001316835 |
| Sector | Consumer Cyclical |
| Industry | Building Products & Equipment Yahoo Finance |
| SEC SIC | 5211 Retail-Lumber & Other Building Materials Dealers |
| Exchange | NYSE |
Data coverage
| Local Form 4 history | 666 transaction lines from 2020-03-01 to 2026-09-10 5 P purchase lines · 37 S sale lines · 624 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.