ARSANIS INC

CUSIP: 042873109 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2018
Shares 318,295 Value ($000) $739 Avg Close — Range —
Q3 2018
Shares 285,839 Value ($000) $463 Avg Close — Range —
Q2 2018
Shares 285,831 Value ($000) $1,038 Avg Close — Range —
Q1 2018
Shares 163,425 Value ($000) $3,740 Avg Close — Range —