AMERICAN PUBLIC EDUCATION IN

Ticker: APEI CUSIP: 02913V103 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q1 2018

Shares 116 Value ($000) $5 Avg Close $30.67 Range $23.15 - $45.75

Q4 2017

Shares 2,520 Value ($000) $63 Avg Close $23.30 Range $19.30 - $27.40

Q4 2014

Shares 7,786 Value ($000) $287 Avg Close $32.47 Range $26.24 - $37.46

Q3 2014

Shares 6,528 Value ($000) $176 Avg Close $31.51 Range $26.98 - $36.47

Q2 2014

Shares 46 Value ($000) $2 Avg Close $34.85 Range $32.51 - $38.00

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	116	$5	$30.67	$23.15 - $45.75
Q4 2017	2,520	$63	$23.30	$19.30 - $27.40
Q4 2014	7,786	$287	$32.47	$26.24 - $37.46
Q3 2014	6,528	$176	$31.51	$26.98 - $36.47
Q2 2014	46	$2	$34.85	$32.51 - $38.00