NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2021
Shares 298,763 Value ($000) $7,090 Avg Close — Range —
Q3 2021
Shares 638,849 Value ($000) $16,022 Avg Close — Range —
Q2 2021
Shares 673,092 Value ($000) $17,487 Avg Close — Range —
Q1 2021
Shares 829,345 Value ($000) $21,239 Avg Close — Range —
Q4 2020
Shares 894,078 Value ($000) $17,917 Avg Close — Range —
Q3 2020
Shares 988,364 Value ($000) $16,930 Avg Close — Range —
Q2 2020
Shares 1,050,210 Value ($000) $22,916 Avg Close — Range —
Q1 2020
Shares 963,481 Value ($000) $22,285 Avg Close — Range —
Q4 2019
Shares 955,188 Value ($000) $31,512 Avg Close — Range —
Q3 2019
Shares 946,099 Value ($000) $30,124 Avg Close — Range —
Q2 2019
Shares 1,087,014 Value ($000) $27,926 Avg Close — Range —
Q1 2019
Shares 1,026,808 Value ($000) $26,060 Avg Close — Range —
Q4 2018
Shares 1,047,767 Value ($000) $35,655 Avg Close — Range —
Q3 2018
Shares 1,005,685 Value ($000) $35,854 Avg Close — Range —
Q2 2018
Shares 1,715,843 Value ($000) $59,196 Avg Close — Range —
Q1 2018
Shares 1,734,213 Value ($000) $58,357 Avg Close — Range —
Q4 2017
Shares 1,924,157 Value ($000) $73,504 Avg Close — Range —
Q3 2017
Shares 2,247,695 Value ($000) $84,289 Avg Close — Range —
Q2 2017
Shares 2,085,032 Value ($000) $77,771 Avg Close — Range —
Q1 2017
Shares 1,795,094 Value ($000) $70,457 Avg Close — Range —
Q4 2016
Shares 872,826 Value ($000) $30,374 Avg Close — Range —
Q3 2016
Shares 529,022 Value ($000) $20,785 Avg Close — Range —
Q2 2016
Shares 443,160 Value ($000) $16,751 Avg Close — Range —
Q1 2016
Shares 6,425 Value ($000) $247 Avg Close — Range —
Q4 2015
Shares 11,900 Value ($000) $572 Avg Close — Range —
Q3 2015
Shares 34,385 Value ($000) $1,356 Avg Close — Range —
Q2 2015
Shares 45,286 Value ($000) $1,928 Avg Close — Range —
Q1 2015
Shares 434,550 Value ($000) $17,151 Avg Close — Range —
Q4 2014
Shares 784,418 Value ($000) $28,270 Avg Close — Range —
Q3 2014
Shares 1,018,149 Value ($000) $30,046 Avg Close — Range —
Q2 2014
Shares 1,138,708 Value ($000) $28,627 Avg Close — Range —
Q1 2014
Shares 1,097,645 Value ($000) $28,319 Avg Close — Range —
Q4 2013
Shares 1,419,923 Value ($000) $31,948 Avg Close — Range —
Q3 2013
Shares 1,452,413 Value ($000) $20,595 Avg Close — Range —
Q2 2013
Shares 73,769 Value ($000) $1,007 Avg Close — Range —