Updated: May 19, 2026

Mark A Alexander

BLDRBuilders FirstSource, Inc.SEC CIK: 0001212607
Estimated Net Worth
$30.3 Million0.0%vs Last Year
Last Updated: May 19, 2026 11:10 PM EST

Transaction Summary

Total Transactions96
Buy-Sell Ratio29.67
Buy Transactions89
Sell Transactions3

Transaction Volume

Total Volume$3.31M
Net Volume$2.86M
Buy Volume$3.08M
Sell Volume$225.16K

Trade Analysis

AVG Trade Size$34.48K
Largest Trade$276.43K
Most Active MonthJun
Most Active Year2024

Trading Sentiment

OverallBullish
Recent TradeBuying
Last 90 Days0 Trades
ConvictionNone

Net Worth & Trading Activity Over Time

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Monthly Trading Pattern

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Past Insider Trading and Trends

Mark A Alexander has an estimated net worth of $30.3 Million. This is based on reported shares across multiple companies, which include W. P. Carey Inc., KAYDON CORP, Builders FirstSource, Inc., SUBURBAN PROPANE PARTNERS LP, and BMC STOCK HOLDINGS, INC..



2024 was Mark A Alexander's most active year for acquiring shares with 13 total transactions. Mark A Alexander's most active month to acquire stocks was the month of April. 2013 was Mark A Alexander's most active year for disposing of shares, totalling 10 transactions. Mark A Alexander's most active month to dispose stocks was the month of September. 2024 saw Mark A Alexander paying a total of $849,290.50 for 17,958 shares, this is the most they've acquired in one year. In 2013 Mark A Alexander cashed out on 57,339 shares for a total of $225,161.89, their largest year based on trade value.

Holdings & Transactions

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