ATRION CORP

CUSIP: 049904105 Class: Common Stock

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q3 2018
Shares 2,648 Value ($000) $1,839 Avg Close — Range —
Q2 2018
Shares 2,200 Value ($000) $1,318 Avg Close — Range —
Q1 2018
Shares 999 Value ($000) $630 Avg Close — Range —
Q4 2017
Shares 1,200 Value ($000) $756 Avg Close — Range —
Q3 2016
Shares 700 Value ($000) $298 Avg Close — Range —
Q2 2016
Shares 700 Value ($000) $299 Avg Close — Range —