INOGEN INC

Ticker: INGN CUSIP: 45780L104 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2019

Shares 135,000 Value ($000) $9,225 Avg Close $62.71 Range $44.13 - $76.89

Q4 2018

Shares 50,000 Value ($000) $6,209 Avg Close $164.69 Range $110.51 - $247.99

Q3 2017

Shares 151,228 Value ($000) $14,382 Avg Close $96.41 Range $89.01 - $105.35

Q2 2017

Shares 155,000 Value ($000) $14,790 Avg Close $85.47 Range $74.06 - $97.71

Q1 2017

Shares 70,000 Value ($000) $5,429 Avg Close $69.29 Range $62.69 - $79.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	135,000	$9,225	$62.71	$44.13 - $76.89
Q4 2018	50,000	$6,209	$164.69	$110.51 - $247.99
Q3 2017	151,228	$14,382	$96.41	$89.01 - $105.35
Q2 2017	155,000	$14,790	$85.47	$74.06 - $97.71
Q1 2017	70,000	$5,429	$69.29	$62.69 - $79.94