Insider Stock Trading History of Oak Investment Partners Xi L P

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Oak Investment Partners Xi L P since year 2005. The trader's CIK number is 1299239. At the time of this reporting, Oak Investment Partners Xi L P is the 10% Owner of Tengion Inc . (stock ticker symbol TNGN). See this page for all insider trading activities at Tengion Inc .

Note that in the past Oak Investment Partners XI L P also reported insider trading activities as an insider of the following companies:

Stock purchases, sales, and option exercises reported by insider Oak Investment Partners Xi L P since 2005.

Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2010-04-14	TNGN	Tengion Inc	Buy	800,000	5.00	4,000,000
2008-11-28	PRTS	U.s. Auto Parts Network, Inc.	Buy	400	2.00	800
2008-11-26	PRTS	U.s. Auto Parts Network, Inc.	Buy	40,976	2.00	81,952
2008-11-21	PRTS	U.s. Auto Parts Network, Inc.	Buy	1,782,684	1.48	2,638,372
2008-11-20	PRTS	U.s. Auto Parts Network, Inc.	Buy	269,095	1.20	322,914
2007-11-28	PRTS	U.s. Auto Parts Network, Inc.	Buy	29,955	8.17	244,702
2007-11-27	PRTS	U.s. Auto Parts Network, Inc.	Buy	5,102	7.90	40,285

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Oak Investment Partners Xi L P (10% Owner of Tengion Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.