SELECTA BIOSCIENCES INC

CUSIP: 816212104 Class: Common Stock

DRW Securities, LLC's Holding History (CIK: 0001481986)

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

Q2 2018
Shares 15,000 Value ($000) $199 Avg Close — Range —
Q1 2018
Shares 12,000 Value ($000) $122 Avg Close — Range —