Mark Zuckerberg rings the opening bell on the company's first day of trading

Facebook released the amount of shares allocated to each of its underwriters today, following its less-than-stellar IPO day.

The company went public on the Nasdaq to an EKG-like performance, ending in a .38 cent gain today. The update came in an amendment to the company’s prospectus following the close of the market. Along with Facebook’s tumultuous trading, a number of other tech companies’ share prices fell today, including Zynga’s which had to be halted.

The total number of shares allocated to underwriters amounted to 421,233,615, with Morgan Stanley leading the group with 162,174,942 shares now worth over six billion dollars. Morgan Stanley was followed by J.P. Morgan, Goldman Sachs, Merrill Lynch, and Barclays.

Morgan Stanley & Co. LLC      162,174,942   
J.P. Morgan Securities LLC      84,878,573   
Goldman, Sachs & Co.      63,185,042   
Merrill Lynch, Pierce, Fenner & Smith Incorporated      27,380,185   
Barclays Capital Inc.      27,380,185   
Allen & Company LLC      8,424,672   
Citigroup Global Markets Inc.      9,477,755   
Credit Suisse Securities (USA) LLC      9,477,755   
Deutsche Bank Securities Inc.      9,477,755   
RBC Capital Markets, LLC      4,212,336   
Wells Fargo Securities, LLC      4,212,336   
Blaylock Robert Van LLC      673,974   
BMO Capital Markets Corp.      421,234   
C.L. King & Associates, Inc.      631,850   
Cabrera Capital Markets, LLC      421,234   
CastleOak Securities, L.P.      673,974   
Cowen and Company, LLC.      421,234   
E*TRADE Securities LLC      210,617   
Itaú BBA USA Securities, Inc.      210,617   
Lazard Capital Markets LLC      421,234   
Lebenthal & Co., LLC      673,974   

Loop Capital Markets LLC

M.R. Beal & Company      673,974   
Macquarie Capital (USA) Inc.      421,234   
Muriel Siebert & Co., Inc.      673,974   
Oppenheimer & Co. Inc.      421,234   
Pacific Crest Securities LLC      421,234   
Piper Jaffray & Co.      421,234   
Raymond James & Associates, Inc.      421,234   
Samuel A. Ramirez & Company, Inc.      631,850   
Stifel, Nicolaus & Company, Incorporated      421,234   
The Williams Capital Group, L.P.      589,727   
William Blair & Company, L.L.C.      421,234