HEIDRICK & STRUGGLES INTL IN

CUSIP: 422819102 Class: Common Stock

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

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

Q1 2019
Shares 143 Value ($000) $5 Avg Close — Range —
Q4 2018
Shares 277 Value ($000) $9 Avg Close — Range —
Q3 2015
Shares 5,000 Value ($000) $97 Avg Close — Range —
Q4 2014
Shares 757 Value ($000) $17 Avg Close — Range —
Q3 2014
Shares 15,138 Value ($000) $311 Avg Close — Range —
Q2 2014
Shares 30,086 Value ($000) $557 Avg Close — Range —
Q1 2014
Shares 23,203 Value ($000) $466 Avg Close — Range —