Insider Trading activities of Lafarge North America Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Lafarge North America Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Lafarge North America Inc since year 2005. Table 2 shows the detailed insider transactions of Lafarge North America Inc since 2005. The reporting company's ticker symbol is LAF. The reporting company's CIK number is 716783.
The total value of stock buying since 2005 is $48,263.
The total value of stock sales since 2005 is $5,437,216.
The total value of stock option exercises since 2005 is $232,877.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Lafarge North America Inc (LAF).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2006-05 0 $0 58,349 $4,988,837 0 $0
2006-02 0 $0 465 $29,699 1,000 $18,875
2005-07 0 $0 6,000 $418,680 6,000 $214,002
2005-05 850 $48,263 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Lafarge North America Inc insiders (LAF)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2006-05-15 Olsen Eric C (Executive Vice President & CFO) Sale 951 85.50 81,310
2006-05-15 Micali James M (Director) Sale 722 85.50 61,731
2006-05-15 Redfern John D (Director) Sale 3,732 85.50 319,086
2006-05-15 Farrell Thomas (Executive Vice President) Sale 1,057 85.50 90,373
2006-05-15 Rollier Philippe R (President & CEO) Sale 19,934 85.50 1,704,357
2006-05-15 Nadeau Bertin F (Director) Sale 5,153 85.50 440,581
2006-05-15 Murdoch Robert W (Director) Sale 2,066 85.50 176,643
2006-05-15 Lafont Bruno (Director) Sale 1,000 85.50 85,500
2006-05-15 Collomb Bertrand P (Chairman of the Board) Sale 10,699 85.50 914,764
2006-05-15 Kasriel Bernard (Vice Chairman of the Board) Sale 2,000 85.50 171,000
2006-05-15 Cohen Marshall A (Director) Sale 4,935 85.50 421,942
2006-05-15 Malone Claudine B/ca (Director) Sale 5,250 85.50 448,875
2006-05-15 Mcgarvie Blythe J (Director) Sale 850 85.50 72,675
2006-02-03 Cohen Marshall A (Director) Sale 465 63.87 29,699
2006-02-03 Cohen Marshall A (Director) Option Ex 1,000 18.88 18,875
2005-07-29 Dauman Philippe P (Director) Sale 6,000 69.78 418,680
2005-07-29 Dauman Philippe P (Director) Option Ex 6,000 35.67 214,002
2005-05-05 Mcgarvie Blythe J (Director) Buy 850 56.78 48,263

Insider trading activities including stock purchases, stock sales, and option exercises of LAF listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Lafarge North America Inc (symbol LAF, CIK number 716783) see the Securities and Exchange Commission (SEC) website.