NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

OAK ASSOCIATES LTD /OH/'s Holding History (CIK: 0000836372)

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

Q1 2019
Shares 13,125 Value ($000) $350 Avg Close — Range —
Q4 2018
Shares 13,125 Value ($000) $337 Avg Close — Range —
Q3 2018
Shares 13,125 Value ($000) $565 Avg Close — Range —
Q2 2018
Shares 13,125 Value ($000) $570 Avg Close — Range —
Q1 2018
Shares 6,595 Value ($000) $243 Avg Close — Range —
Q2 2014
Shares 2,500 Value ($000) $206 Avg Close — Range —