NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

SUMMITRY LLC's Holding History (CIK: 0001280043)

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

Q3 2015
Shares 6,805 Value ($000) $256 Avg Close — Range —
Q2 2015
Shares 307,057 Value ($000) $14,819 Avg Close — Range —
Q1 2015
Shares 304,112 Value ($000) $15,203 Avg Close — Range —
Q4 2014
Shares 284,451 Value ($000) $18,640 Avg Close — Range —
Q3 2014
Shares 269,848 Value ($000) $20,535 Avg Close — Range —
Q2 2014
Shares 301,590 Value ($000) $24,836 Avg Close — Range —
Q1 2014
Shares 294,575 Value ($000) $22,939 Avg Close — Range —
Q4 2013
Shares 199,486 Value ($000) $15,865 Avg Close — Range —
Q3 2013
Shares 188,961 Value ($000) $14,760 Avg Close — Range —
Q2 2013
Shares 119,221 Value ($000) $8,214 Avg Close — Range —