Form 4 for ALT Altimmune, Inc.

Accepted 2024-02-01 00:00:00 ET · period of report 2024-01-30 · accession 0001104659-24-009540 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2024-02-01	2024-01-31	ALT	Harris Matthew Scott	Chief Medical Off	A - Grant	$2.69	+3,257	43.8K	+8%	+$8,761
D	2024-02-01	2024-01-30	ALT	Harris Matthew Scott	Chief Medical Off	M - OptEx	$0.00	+9,275	43.3K	+27%	$0
D	2024-02-01	2024-01-30	ALT	Harris Matthew Scott	Chief Medical Off	F - Tax	$9.80	-2,709	40.6K	-6%	-$26.5K
D	2024-02-01	2024-01-30	ALT	Harris Matthew Scott	Chief Medical Off	M - OptEx	$0.00	-9,275	27.8K	-25%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock, par value $0.0001	2024-01-31	A	A	3,257	$2.69	43,825	D	—	—	(F4) In accordance with the ESPP, these shares were purchased based on 85% of the opening price of the issuer's common stock on August 1, 2023.
2	Common	Common Stock, par value $0.0001	2024-01-30	M	A	9,275	$0.00	43,277	D	—	—	(F1) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested.
3	Common	Common Stock, par value $0.0001	2024-01-30	F	D	2,709	$9.80	40,568	D	—	—
4	Derivative	Restricted Stock Units	2024-01-30	M	D	9,275	$0.00	27,825	D	— · — to —	9,275 Common Stock, par value $0.0001	(F1) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.0001, when vested. (F5) The RSUs become vested in substantially equal annual installments over the 4 years following January 30, 2023, subject to the reporting person's continued service through the applicable vesting date, and have no expiration date.