ARSANIS INC

CUSIP: 042873109 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2018
Shares 54,563 Value ($000) $127 Avg Close — Range —
Q3 2018
Shares 51,133 Value ($000) $83 Avg Close — Range —
Q2 2018
Shares 50,240 Value ($000) $182 Avg Close — Range —
Q1 2018
Shares 32,097 Value ($000) $735 Avg Close — Range —