Interesting one this, although the birth data is limited.

The only data readily available for the bank is that for when Napoleon III made an authorisation decree. This is the date given on the official website for the bank. With no time available, we can't calculate house cusps or an exact position of the Moon. Here is the chart we get:

The Sun is at 14 degrees 14 minutes of Taurus.

The two planets connected with fraudulent activity are Neptune and Pluto. These are the planets of subversion, hidden goings on, deception, undermining structures, and so on.

Currently, Pluto is making a close sesquiquadrate aspect to the bank's Sun in Taurus.

We don't have the full birth data for the person who the media has named as the 'rogue trader', Jerome Kerviel, we only have his date of birth (assuming it's correct, too - no doubt time will tell). But checking the planets' positions for that date of birth we find a sextile between Neptune and Pluto:

Neptune is at 15 degrees 00 minutes of Sagittarius
Pluto is at 14 degrees 11 minutes of Libra.

This means that Jerome Kerviel's Neptune and Pluto make a 'Yod' or 'Finger of Fate' formation with the Societe Generale's Sun.

(His Saturn is also involved, being square to the bank's Sun)