AMERICAN PUBLIC EDUCATION IN

Ticker: APEI CUSIP: 02913V103 Class: Common Stock

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021

Shares 21,900 Value ($000) $780 Avg Close $31.31 Range $25.50 - $39.19

Q4 2020

Shares 50,200 Value ($000) $1,530 Avg Close $30.75 Range $25.35 - $35.92

Q3 2020

Shares 57,500 Value ($000) $1,621 Avg Close $30.40 Range $26.80 - $41.09

Q2 2020

Shares 27,100 Value ($000) $802 Avg Close $27.98 Range $20.56 - $34.63

Q1 2019

Shares 42,205 Value ($000) $1,271 Avg Close $30.83 Range $27.20 - $34.86

Q4 2018

Shares 47,705 Value ($000) $1,358 Avg Close $30.66 Range $26.37 - $37.00

Q3 2018

Shares 81,005 Value ($000) $2,677 Avg Close $38.29 Range $30.45 - $46.15

Q2 2018

Shares 77,205 Value ($000) $3,250 Avg Close $41.81 Range $36.55 - $45.75

Q1 2018

Shares 40,305 Value ($000) $1,733 Avg Close $30.67 Range $23.15 - $45.75

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	21,900	$780	$31.31	$25.50 - $39.19
Q4 2020	50,200	$1,530	$30.75	$25.35 - $35.92
Q3 2020	57,500	$1,621	$30.40	$26.80 - $41.09
Q2 2020	27,100	$802	$27.98	$20.56 - $34.63
Q1 2019	42,205	$1,271	$30.83	$27.20 - $34.86
Q4 2018	47,705	$1,358	$30.66	$26.37 - $37.00
Q3 2018	81,005	$2,677	$38.29	$30.45 - $46.15
Q2 2018	77,205	$3,250	$41.81	$36.55 - $45.75
Q1 2018	40,305	$1,733	$30.67	$23.15 - $45.75