NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

CLOUGH CAPITAL PARTNERS L P's Holding History (CIK: 0001276144)

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

Q1 2014
Shares 3,409 Value ($000) $265 Avg Close — Range —
Q4 2013
Shares 62,942 Value ($000) $5,006 Avg Close — Range —
Q3 2013
Shares 77,142 Value ($000) $6,026 Avg Close — Range —
Q2 2013
Shares 191,026 Value ($000) $13,162 Avg Close — Range —