Company Insider Tape

Amprius Technologies Inc. insider transactions

Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.

Symbol AMPX Latest filing 15 Jun 2026

Company Read

Net disposal

AMPX has 26 stored insider filings. Acquisitions account for 30.8% of classified filings and disposals account for 69.2%. The largest stored filing is $19.7M from SUN, KANG.

Latest filing 15 Jun 2026most recent stored row
Largest filing $19.7Mreported transaction value
Total filings 26stored transaction rows
Acquisition value $3.0M8 acquisitions
Disposal value $36.0M18 disposals
Net value $-33.0Macquisitions minus disposals

Filing cadence

Last 12 active months
Mar 2026 2
Apr 2026 6
May 2026 8
Jun 2026 10

Acquisitions 30.8% · Disposals 69.2%

Mar 2026 $4.1M
Apr 2026 $29.9M
May 2026 $2.8M
Jun 2026 $2.3M

Executive concentration

By filing count
SUN, KANG Director · 11 filings
STEPIEN, THOMAS M Director, Chief Executive Officer · 6 filings
DIXON, DONALD R Director · 4 filings
STEFAN, CONSTANTIN IONEL Chief Technology Officer · 2 filings
SATTERTHWAITE, LIVINGSTON Director · 1 filings
CHU, STEVEN Director · 1 filings
BAYLESS, KATHLEEN A Director · 1 filings

Market Context

AMPX weekly market snapshot

Week 31 Jul 2026
Latest close 9.60 USDstored weekly close
1-week move +3.9%latest weekly bar
13-week move -22.5%medium-term context
Relative Strength -30.4Sharemaestro indicator
Fair value gap +55.0%price vs fair value
Trend signal 0smoothed trend state

Transaction History

Latest insider filings for AMPX

Showing 1-26 of 26
Date 15 Jun 2026
Insider DIXON, DONALD RDirector
Side Disposal
Shares 85000
Price 17.17
Value 1459212
Security Common stock
Date 12 Jun 2026
Insider BAYLESS, KATHLEEN ADirector
Side Acquisition
Shares 10423
Price 0.00
Value 0
Security Common stock
Date 12 Jun 2026
Insider CHU, STEVENDirector
Side Acquisition
Shares 10423
Price 0.00
Value 0
Security Common stock
Date 12 Jun 2026
Insider DIXON, DONALD RDirector
Side Acquisition
Shares 10423
Price 0.00
Value 0
Security Common stock
Date 12 Jun 2026
Insider SATTERTHWAITE, LIVINGSTONDirector
Side Acquisition
Shares 10423
Price 0.00
Value 0
Security Common stock
Date 9 Jun 2026
Insider DIXON, DONALD RDirector
Side Disposal
Shares 40000
Price 19.13
Value 765200
Security Common stock
Date 4 Jun 2026
Insider STEPIEN, THOMAS MDirector, Chief Executive Officer
Side Disposal
Shares 2000
Price 20.97
Value 41940
Security Common stock
Date 4 Jun 2026
Insider STEPIEN, THOMAS MDirector, Chief Executive Officer
Side Acquisition
Shares 36914
Price 0.00
Value 0
Security Common stock
Date 4 Jun 2026
Insider STEPIEN, THOMAS MDirector, Chief Executive Officer
Side Disposal
Shares 30384
Price 0.00
Value 0
Security Common stock
Date 4 Jun 2026
Insider STEPIEN, THOMAS MDirector, Chief Executive Officer
Side Disposal
Shares 36914
Price 0.00
Value 0
Security Common stock
Date 27 May 2026
Insider STEPIEN, THOMAS MDirector, Chief Executive Officer
Side Disposal
Shares 4375
Price 17.19
Value 75222
Security Common stock
Date 27 May 2026
Insider STEFAN, CONSTANTIN IONELChief Technology Officer
Side Disposal
Shares 3208
Price 17.19
Value 55157
Security Common stock
Date 27 May 2026
Insider SUN, KANGDirector
Side Disposal
Shares 356
Price 17.19
Value 6121
Security Common stock
Date 26 May 2026
Insider DIXON, DONALD RDirector
Side Disposal
Shares 17895
Price 17.90
Value 320252
Security Common stock
Date 21 May 2026
Insider SUN, KANGDirector
Side Disposal
Shares 67796
Price 14.79
Value 1002594
Security Common stock
Date 21 May 2026
Insider STEPIEN, THOMAS MDirector, Chief Executive Officer
Side Disposal
Shares 60702
Price 14.79
Value 897685
Security Common stock
Date 21 May 2026
Insider STEFAN, CONSTANTIN IONELChief Technology Officer
Side Disposal
Shares 28812
Price 14.79
Value 426083
Security Common stock
Date 5 May 2026
Insider SUN, KANGDirector
Side Acquisition
Shares 6250
Price 0.00
Value 0
Security Common stock
Date 1 Apr 2026
Insider SUN, KANGDirector
Side Disposal
Shares 1250963
Price 15.73
Value 19681151
Security Common stock
Date 1 Apr 2026
Insider SUN, KANGDirector
Side Disposal
Shares 249037
Price 16.78
Value 4179563
Security Common stock
Date 1 Apr 2026
Insider SUN, KANGDirector
Side Acquisition
Shares 1312505
Price 1.78
Value 2336259
Security Common stock
Date 1 Apr 2026
Insider SUN, KANGDirector
Side Disposal
Shares 1312505
Price 1.78
Value 2336259
Security Stock Option (right to buy)
Date 1 Apr 2026
Insider SUN, KANGDirector
Side Disposal
Shares 187495
Price 3.68
Value 689982
Security Stock Option (right to buy)
Date 1 Apr 2026
Insider SUN, KANGDirector
Side Acquisition
Shares 187495
Price 3.68
Value 689982
Security Common stock
Date 23 Mar 2026
Insider SUN, KANGDirector
Side Disposal
Shares 152823
Price 18.69
Value 2855696
Security Common stock
Date 23 Mar 2026
Insider SUN, KANGDirector
Side Disposal
Shares 65046
Price 19.06
Value 1239705
Security Common stock