NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

Kovack Advisors, Inc.'s Holding History (CIK: 0001728321)

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

Q2 2015
Shares 5,663 Value ($000) $273 Avg Close — Range —
Q1 2015
Shares 5,618 Value ($000) $281 Avg Close — Range —