NATUS MEDICAL INC DEL

CUSIP: 639050103 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2022
Shares 1,250 Value ($000) $33 Avg Close Range
Q4 2021
Shares 1,250 Value ($000) $30 Avg Close Range
Q3 2021
Shares 1,250 Value ($000) $31 Avg Close Range
Q2 2021
Shares 1,250 Value ($000) $32 Avg Close Range
Q4 2019
Shares 1,394 Value ($000) $46 Avg Close Range
Q3 2019
Shares 542 Value ($000) $17 Avg Close Range
Q2 2019
Shares 2,210 Value ($000) $57 Avg Close Range
Q1 2019
Shares 1,310 Value ($000) $33 Avg Close Range
Q1 2018
Shares 4,210 Value ($000) $142 Avg Close Range
Q2 2017
Shares 90 Value ($000) $3 Avg Close Range
Q2 2016
Shares 2,583 Value ($000) $98 Avg Close Range
Q1 2016
Shares 2,183 Value ($000) $84 Avg Close Range
Q4 2015
Shares 1,628 Value ($000) $78 Avg Close Range
Q3 2015
Shares 12,980 Value ($000) $512 Avg Close Range
Q2 2015
Shares 3,848 Value ($000) $164 Avg Close Range
Q1 2015
Shares 1,300 Value ($000) $51 Avg Close Range
Q3 2014
Shares 13,343 Value ($000) $394 Avg Close Range
Q2 2014
Shares 60,923 Value ($000) $1,532 Avg Close Range
Q1 2014
Shares 133,466 Value ($000) $3,443 Avg Close Range
Q4 2013
Shares 32,608 Value ($000) $734 Avg Close Range