NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

Rock Point Advisors, LLC's Holding History (CIK: 0001301540)

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

Q2 2015
Shares 73,305 Value ($000) $3,539 Avg Close — Range —
Q1 2015
Shares 74,545 Value ($000) $3,727 Avg Close — Range —
Q4 2014
Shares 75,035 Value ($000) $4,917 Avg Close — Range —
Q3 2014
Shares 77,030 Value ($000) $5,862 Avg Close — Range —
Q2 2014
Shares 82,415 Value ($000) $6,787 Avg Close — Range —
Q1 2014
Shares 84,280 Value ($000) $6,563 Avg Close — Range —
Q4 2013
Shares 90,420 Value ($000) $7,191 Avg Close — Range —
Q3 2013
Shares 91,325 Value ($000) $7,133 Avg Close — Range —
Q2 2013
Shares 90,535 Value ($000) $6,238 Avg Close — Range —