NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q3 2020
Shares 778,063 Value ($000) $7,050 Avg Close — Range —
Q2 2020
Shares 146,523 Value ($000) $1,795 Avg Close — Range —
Q1 2020
Shares 932 Value ($000) $9 Avg Close — Range —
Q4 2019
Shares 232,926 Value ($000) $5,835 Avg Close — Range —
Q2 2019
Shares 450,623 Value ($000) $10,018 Avg Close — Range —
Q2 2017
Shares 19,533 Value ($000) $645 Avg Close — Range —
Q3 2014
Shares 182,973 Value ($000) $13,924 Avg Close — Range —
Q2 2013
Shares 87,714 Value ($000) $6,043 Avg Close — Range —