that wikipedia article is quite old.
Quote
The firm's private-company transactions, which totaled $100 million in 2009, quadrupled by 2010 to $400 million. Based on first-quarter results, SecondMarket could broker $1 billion in private-company shares in 20118
only found some interesting reviews of former employees:
http://www.glassdoor.com/Reviews/SecondMarket-Reviews-E432167.htm
and this article
http://techcrunch.com/2013/04/25/secondmarket-confirms-layoffs-to-have-leaner-cost-structure-become-break-even/
ehh...really sounds perfect for bitcoin
edit:
http://www.inc.com/eric-markowitz/second-market-second-act-sec-ruling.html
http://betabeat.com/2013/04/layoffs-at-secondmarket-barry-silbert/