INOGEN INC

Ticker: INGN CUSIP: 45780L104 Class: COM

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

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

Q4 2018

Shares 117,000 Value ($000) $14,528 Avg Close $164.69 Range $110.51 - $247.99

Q3 2018

Shares 126,000 Value ($000) $30,759 Avg Close $231.25 Range $179.49 - $287.79

Q2 2018

Shares 119,000 Value ($000) $22,173 Avg Close $166.43 Range $122.24 - $194.23

Q1 2018

Shares 110,500 Value ($000) $13,574 Avg Close $122.09 Range $112.78 - $134.97

Q4 2017

Shares 80,000 Value ($000) $9,526 Avg Close $110.11 Range $91.80 - $130.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	117,000	$14,528	$164.69	$110.51 - $247.99
Q3 2018	126,000	$30,759	$231.25	$179.49 - $287.79
Q2 2018	119,000	$22,173	$166.43	$122.24 - $194.23
Q1 2018	110,500	$13,574	$122.09	$112.78 - $134.97
Q4 2017	80,000	$9,526	$110.11	$91.80 - $130.05