SPERO THERAPEUTICS INC

Ticker: SPRO CUSIP: 84833T103 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q4 2018
Shares 168,018 Value ($000) $1,033,000 Avg Close $8.10 Range $5.52 - $11.40
Q3 2018
Shares 170,000 Value ($000) $1,787,000 Avg Close $11.61 Range $9.29 - $18.23