SELECTA BIOSCIENCES INC

CUSIP: 816212104 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q1 2020
Shares 11,000 Value ($000) $27 Avg Close — Range —
Q1 2019
Shares 16,000 Value ($000) $38 Avg Close — Range —
Q3 2018
Shares 446 Value ($000) $7 Avg Close — Range —