Amprius Technologies, Inc. - AMPX

Include option trades

Include indirect trades

Latest data: 9/14/2026 10:02:20 PM

EDGAR CIK

1 Month 3 Month 6 Month 1 Year 2 Years

Buy Breakdown

Total $0

No buy transactions for this time period.

Sell Breakdown

Total $5,601,518

Monthly Totals

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
08/24/2026	08/25/2026	Stepien Thomas M Chief Executive Officer CEO Director	Sell	-8,000 @ $10.03	($80,240.00)	594,096	(-1.33%)	Direct
08/21/2026	08/25/2026	Stefan Constantin Ionel Chief Technology Officer Officer	Sell	-29,681 @ $10.34	($306,931.22)	771,629	(-3.70%)	Direct
08/21/2026	08/25/2026	Stepien Thomas M Chief Executive Officer CEO Director	Sell	-23,529 @ $10.34	($243,313.39)	602,096	(-3.76%)	Direct
08/21/2026	08/25/2026	Sun Kang Director	Sell	-62,101 @ $10.34	($642,186.44)	1,218,397	(-4.85%)	Direct
06/04/2026	06/05/2026	Stepien Thomas M Chief Executive Officer CEO Director	Sell	-2,000 @ $20.97	($41,940.00)	625,625	(-0.32%)	Direct
05/27/2026	05/28/2026	Stefan Constantin Ionel Chief Technology Officer Officer	Sell	-3,208 @ $17.19	($55,156.75)	801,310	(-0.40%)	Direct
05/27/2026	05/28/2026	Stepien Thomas M Chief Executive Officer CEO Director	Sell	-4,375 @ $17.19	($75,221.56)	694,923	(-0.63%)	Direct
05/27/2026	05/28/2026	Sun Kang Director	Sell	-356 @ $17.19	($6,120.89)	1,280,498	(-0.03%)	Direct
05/21/2026	05/26/2026	Stefan Constantin Ionel Chief Technology Officer Officer	Sell	-28,812 @ $14.79	($426,083.38)	804,518	(-3.46%)	Direct
05/21/2026	05/26/2026	Stepien Thomas M Chief Executive Officer CEO Director	Sell	-60,702 @ $14.79	($897,685.46)	699,298	(-7.99%)	Direct
05/21/2026	05/26/2026	Sun Kang Director	Sell	-67,796 @ $14.79	($1,002,594.37)	1,280,854	(-5.03%)	Direct
02/23/2026	02/24/2026	Stefan Constantin Ionel Chief Technology Officer Officer	Sell	-25,366 @ $10.16	($257,604.41)	723,330	(-3.39%)	Direct
02/23/2026	02/24/2026	Sun Kang Director	Sell	-61,251 @ $10.16	($622,034.53)	1,342,400	(-4.36%)	Direct
11/21/2025	11/25/2025	Stefan Constantin Ionel Chief Technology Officer Officer	Sell	-25,024 @ $10.08	($252,274.45)	821,951	(-2.95%)	Direct
11/21/2025	11/25/2025	Sun Kang Chief Executive Officer CEO Director	Sell	-68,655 @ $10.08	($692,131.65)	1,403,651	(-4.66%)	Direct