ALTIMMUNE INC

Ticker: ALT CUSIP: 02155H200 Class: COM NEW

Capital World Investors's Holding History (CIK: 0001422849)

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

Q2 2021

Shares 692,604 Value ($000) $6,822 Avg Close $13.67 Range $9.60 - $19.46

Q1 2021

Shares 1,404,000 Value ($000) $19,839 Avg Close $16.17 Range $11.19 - $24.61

Q4 2020

Shares 1,404,000 Value ($000) $15,837 Avg Close $11.78 Range $7.80 - $16.25

Q3 2020

Shares 861,000 Value ($000) $11,365 Avg Close $19.99 Range $8.60 - $35.10

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	692,604	$6,822	$13.67	$9.60 - $19.46
Q1 2021	1,404,000	$19,839	$16.17	$11.19 - $24.61
Q4 2020	1,404,000	$15,837	$11.78	$7.80 - $16.25
Q3 2020	861,000	$11,365	$19.99	$8.60 - $35.10