Russian investment group Digital Sky Technologies has placed a tender offer to purchase up to $100 million of common stock from current and former Facebook employees., according to media reports.

Employees who would like to accept the offer must accept the terms within 20 business days from today, according to Reuters. The offer is for $14.77 per share, valuing the company at $6.5 billion.

While individuals must make their own decisions about participating in this program, I'm pleased that the price DST is offering is much greater than the price originally considered last fall. This is recognition of Facebook's growth and progress towards making the world more open and connected, Facebook founder and CEO, Mark Zuckerberg said in a statement.

The new deal comes just over a month after DST invested $200 million in Facebook, purchasing preferred stock that valued the company at $10 billion.

If the offer is fully accepted DST will purchase approximately an additional 1.54% of the fully diluted stock of Facebook. With the two investments combined, DST will own approximately 3.5% of Facebook in total.