Declaration of transactions involving treasury stock


In accordance with the regulations regarding share buybacks (Article 241-5 of the general regulations issued by the AMF), Compagnie de Saint-Gobain hereby announces that the following transactions involving treasury stock were carried out between September 18 and September 22, 2006:


Trading date   Number of
shares
Weighted
average
price in euros
Amount
in euros
Sept. 18, 2006 bought

0

 

 

sold

0

 

 

Sept. 19, 2006 bought

70,000

57.05

3,993,227

sold

0

 

 

Sept. 20, 2006 bought

80,000

57.53

4,602,660

sold

0

 

 

Sept. 21, 2006 bought

130,000

57.69

7,499,466

sold

0

 

 

Sept. 22, 2006 bought

120,000

57.04

6,844,648

sold

0

 

 

Total of the
period
bought

400,000

57.35

22,940,000

sold

0

 

    0



September 25, 2006