KALEIDO BIOSCIENCES INC

Ticker: KLDO CUSIP: 483347100 Class: COM

Rock Springs Capital Management LP's Holding History (CIK: 0001595725)

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

Q3 2019

Shares 100,050 Value ($000) $753 Avg Close $8.68 Range $6.23 - $12.46

Q2 2019

Shares 100,050 Value ($000) $1,161 Avg Close $14.56 Range $10.88 - $19.00

Q1 2019

Shares 100,050 Value ($000) $1,451 Avg Close $13.76 Range $12.50 - $15.52

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	100,050	$753	$8.68	$6.23 - $12.46
Q2 2019	100,050	$1,161	$14.56	$10.88 - $19.00
Q1 2019	100,050	$1,451	$13.76	$12.50 - $15.52