SPERO THERAPEUTICS INC

Ticker: SPRO CUSIP: 84833T103 Class: COM

KBC Group NV's Holding History (CIK: 0001411133)

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

Q2 2019

Shares 6,935 Value ($000) $80 Avg Close $12.04 Range $9.91 - $14.48

Q1 2019

Shares 6,935 Value ($000) $89 Avg Close $10.61 Range $6.00 - $13.50

Q4 2018

Shares 6,935 Value ($000) $43 Avg Close $8.10 Range $5.52 - $11.40

Q3 2018

Shares 6,935 Value ($000) $73 Avg Close $11.61 Range $9.29 - $18.23

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	6,935	$80	$12.04	$9.91 - $14.48
Q1 2019	6,935	$89	$10.61	$6.00 - $13.50
Q4 2018	6,935	$43	$8.10	$5.52 - $11.40
Q3 2018	6,935	$73	$11.61	$9.29 - $18.23