Form 4 for ARTV Artiva Biotherapeutics, Inc.

Accepted 2026-08-19 21:00:36 ET · period of report 2026-08-18 · accession 0001193125-26-357383 · 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
DT	2026-08-19 21:00	2026-08-18	ARTV	Banerjee Subhashis	Chief Medical Off	M - OptEx	$1.92	+429	145.4K	+0.3%	+$823.68
DT	2026-08-19 21:00	2026-08-18	ARTV	Banerjee Subhashis	Chief Medical Off	S - Sale+OE	$12.00	-429	145.0K	-0.3%	-$5,148
DT	2026-08-19 21:00	2026-08-18	ARTV	Banerjee Subhashis	Chief Medical Off	M - OptEx	$0.00	-429	79.6K	-0.5%	$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	2026-08-18	M	A	429	$1.92	145,392	D	—	—	(F1) The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 14, 2026.
2	Common	Common Stock	2026-08-18	S	D	429	$12.00	144,963	D	—	—	(F1) The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 14, 2026.
3	Derivative	Employee Stock Option (Right to Buy)	2026-08-18	M	D	429	$0.00	79,571	D	$1.92 · — to 2035-04-07	429 Common Stock	(F1) The reported transactions occurred pursuant to a Rule 10b5-1 Plan adopted by the reporting person on May 14, 2026. (F2) 25% of the shares initially subject to the option vested and became exercisable on April 8, 2026, and the balance of the shares subject to the option are vesting and becoming exercisable at a rate of 1/36th per month over the following 36 months.