U S G CORP

CUSIP: 903293405 Class: COM NEW

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014
Shares 108,937 Value ($000) $2,995 Avg Close — Range —
Q2 2014
Shares 109,670 Value ($000) $3,304 Avg Close — Range —
Q1 2014
Shares 79,977 Value ($000) $2,617 Avg Close — Range —
Q4 2013
Shares 84,947 Value ($000) $2,411 Avg Close — Range —