ATRION CORP

CUSIP: 049904105 Class: Common Stock

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

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

Q4 2021
Shares 1,663 Value ($000) $1,172 Avg Close — Range —
Q3 2021
Shares 2,186 Value ($000) $1,525 Avg Close — Range —
Q2 2021
Shares 2,294 Value ($000) $1,424 Avg Close — Range —
Q1 2021
Shares 3,345 Value ($000) $2,145 Avg Close — Range —
Q4 2020
Shares 3,437 Value ($000) $2,207 Avg Close — Range —
Q3 2020
Shares 3,123 Value ($000) $1,955 Avg Close — Range —
Q2 2020
Shares 2,806 Value ($000) $1,787 Avg Close — Range —
Q1 2020
Shares 4,027 Value ($000) $2,618 Avg Close — Range —
Q4 2019
Shares 4,627 Value ($000) $3,477 Avg Close — Range —
Q3 2019
Shares 29 Value ($000) $23 Avg Close — Range —
Q2 2019
Shares 2,807 Value ($000) $2,394 Avg Close — Range —
Q4 2018
Shares 13 Value ($000) $10 Avg Close — Range —