NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q4 2020
Shares 150,992 Value ($000) $2,073 Avg Close — Range —
Q3 2020
Shares 122,732 Value ($000) $1,112 Avg Close — Range —
Q2 2020
Shares 38,570 Value ($000) $472 Avg Close — Range —
Q1 2020
Shares 43,046 Value ($000) $423 Avg Close — Range —
Q4 2019
Shares 1,712,463 Value ($000) $42,897 Avg Close — Range —
Q3 2019
Shares 2,207,105 Value ($000) $46,790 Avg Close — Range —
Q2 2019
Shares 2,134,592 Value ($000) $47,452 Avg Close — Range —
Q1 2019
Shares 1,594,977 Value ($000) $42,490 Avg Close — Range —
Q4 2018
Shares 1,527,436 Value ($000) $39,255 Avg Close — Range —
Q3 2018
Shares 963,305 Value ($000) $41,499 Avg Close — Range —
Q2 2018
Shares 1,364,626 Value ($000) $59,225 Avg Close — Range —
Q1 2018
Shares 1,624,740 Value ($000) $53,561 Avg Close — Range —
Q4 2017
Shares 1,682,391 Value ($000) $60,600 Avg Close — Range —
Q3 2017
Shares 1,693,825 Value ($000) $60,520 Avg Close — Range —
Q2 2017
Shares 1,503,441 Value ($000) $49,523 Avg Close — Range —
Q1 2017
Shares 636,479 Value ($000) $25,512 Avg Close — Range —
Q4 2016
Shares 671,126 Value ($000) $25,128 Avg Close — Range —
Q3 2016
Shares 1,161,711 Value ($000) $42,681 Avg Close — Range —
Q2 2016
Shares 1,161,867 Value ($000) $39,097 Avg Close — Range —
Q1 2016
Shares 1,120,417 Value ($000) $34,845 Avg Close — Range —
Q4 2015
Shares 1,003,626 Value ($000) $33,611 Avg Close — Range —
Q3 2015
Shares 1,171,709 Value ($000) $44,903 Avg Close — Range —
Q2 2015
Shares 1,037,513 Value ($000) $50,091 Avg Close — Range —
Q1 2015
Shares 577,306 Value ($000) $28,860 Avg Close — Range —
Q1 2014
Shares 6,678 Value ($000) $520 Avg Close — Range —