Amprius Technologies, Inc. (AMPX)
NYSE · Miscellaneous Electrical Machinery, Equipment & Supplies · Inc. DE
What they're doing
Between 2026-06-21 and 2026-09-19, public records show 1 signal for Amprius Technologies, Inc.. Most notable: 2026-08-13: Filed 8-K disclosing material agreement. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.
Generated 2026-09-19 from public records.
Signals, last 12 months
- Material 8-K filingFiled 8-K disclosing material agreement
- Large insider saleDIXON DONALD R (director) sold $1.5M of stock
- Large insider saleSun Kang (director) sold $1.0M of stock
- Material 8-K filingFiled 8-K disclosing material agreement
- Large insider saleSun Kang (director) sold $19.7M of stock
- Large insider saleSun Kang (director) sold $19.7M of stock
- Large insider saleSun Kang (director) sold $4.2M of stock
- Large insider saleSun Kang (director) sold $2.9M of stock
- Large insider saleSun Kang (director) sold $1.2M of stock
- Large insider saleHSIEH Wen Hsuan (director) sold $5.2M of stock
- Large insider saleHSIEH Wen Hsuan (director) sold $2.4M of stock
- Large insider saleChu Steven (director) sold $1.9M of stock
- Large insider saleChu Steven (director) sold $1.9M of stock
- Large insider saleChu Steven (director) sold $3.0M of stock
- Large insider saleStefan Constantin Ionel (officer) sold $5.9M of stock
- Large insider saleStefan Constantin Ionel (officer) sold $5.9M of stock
- Large insider saleSun Kang (director) sold $10.5M of stock
- Large insider saleSun Kang (director) sold $10.5M of stock
- Large insider saleSun Kang (director) sold $5.1M of stock
- Large insider saleSun Kang (director) sold $5.1M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleStefan Constantin Ionel (officer) sold $2.1M of stock
- Large insider saleSun Kang (director) sold $10.6M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
Insider transactions
| Date | Insider | Role | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-08-25 | Stepien Thomas M | director | G | 5,000 | 0 | $0 |
| 2026-08-25 | Stepien Thomas M | director | G | 5,000 | 0 | $0 |
| 2026-08-25 | Stepien Thomas M | director | G | 5,000 | 0 | $0 |
| 2026-08-25 | Stepien Thomas M | director | G | 346 | 0 | $0 |
| 2026-08-25 | Stepien Thomas M | director | A | 346 | 0 | $0 |
| 2026-08-24 | Stepien Thomas M | director | S | 8,000 | 10.03 | $80,240 |
| 2026-08-21 | Sun Kang | director | S | 62,101 | 10.34 | $642,186 |
| 2026-08-21 | Stefan Constantin Ionel | officer | S | 29,681 | 10.34 | $306,931 |
| 2026-08-21 | Stepien Thomas M | director | S | 23,529 | 10.34 | $243,313 |
| 2026-06-15 | DIXON DONALD R | director | S | 85,000 | 17.17 | $1,459,450 |
| 2026-06-15 | DIXON DONALD R | director | S | 85,000 | 17.17 | $1,459,212 |
| 2026-06-12 | BAYLESS KATHLEEN A | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | SATTERTHWAITE LIVINGSTON | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | DIXON DONALD R | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | Chu Steven | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | BAYLESS KATHLEEN A | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | SATTERTHWAITE LIVINGSTON | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | DIXON DONALD R | director | A | 10,423 | 0 | $0 |
| 2026-06-12 | Chu Steven | director | A | 10,423 | 0 | $0 |
| 2026-06-09 | DIXON DONALD R | director | S | 40,000 | 19.13 | $765,200 |
| 2026-06-09 | DIXON DONALD R | director | S | 40,000 | 19.13 | $765,200 |
| 2026-06-04 | Stepien Thomas M | director | G | 36,914 | 0 | $0 |
| 2026-06-04 | Stepien Thomas M | director | S | 2,000 | 20.97 | $41,940 |
| 2026-06-04 | Stepien Thomas M | director | G | 30,384 | 0 | $0 |
| 2026-06-04 | Stepien Thomas M | director | G | 36,914 | 0 | $0 |
| 2026-06-04 | Stepien Thomas M | director | G | 30,384 | 0 | $0 |
| 2026-06-04 | Stepien Thomas M | director | G | 36,914 | 0 | $0 |
| 2026-06-04 | Stepien Thomas M | director | G | 36,914 | 0 | $0 |
| 2026-06-04 | Stepien Thomas M | director | S | 2,000 | 20.97 | $41,940 |
| 2026-05-27 | Sun Kang | director | S | 356 | 17.19 | $6,120 |
| 2026-05-27 | Stepien Thomas M | director | S | 4,375 | 17.19 | $75,206 |
| 2026-05-27 | Stefan Constantin Ionel | officer | S | 3,208 | 17.19 | $55,146 |
| 2026-05-27 | Sun Kang | director | S | 356 | 17.19 | $6,121 |
| 2026-05-27 | Stepien Thomas M | director | S | 4,375 | 17.19 | $75,222 |
| 2026-05-27 | Stefan Constantin Ionel | officer | S | 3,208 | 17.19 | $55,157 |
| 2026-05-26 | DIXON DONALD R | director | S | 17,895 | 17.9 | $320,321 |
| 2026-05-26 | DIXON DONALD R | director | S | 17,895 | 17.9 | $320,252 |
| 2026-05-21 | Sun Kang | director | S | 67,796 | 14.79 | $1,002,703 |
| 2026-05-21 | Stefan Constantin Ionel | officer | S | 28,812 | 14.79 | $426,129 |
| 2026-05-21 | Stepien Thomas M | director | S | 60,702 | 14.79 | $897,783 |
| 2026-05-21 | Sun Kang | director | S | 67,796 | 14.79 | $1,002,594 |
| 2026-05-21 | Stefan Constantin Ionel | officer | S | 28,812 | 14.79 | $426,083 |
| 2026-05-21 | Stepien Thomas M | director | S | 60,702 | 14.79 | $897,685 |
| 2026-05-05 | Sun Kang | director | A | 6,250 | 0 | $0 |
| 2026-05-05 | Sun Kang | director | A | 6,250 | 0 | $0 |
| 2026-04-01 | Sun Kang | director | S | 1,250,963 | 15.73 | $19,677,648 |
| 2026-04-01 | Sun Kang | director | M | 187,495 | 3.68 | $689,982 |
| 2026-04-01 | Sun Kang | director | M | 1,312,505 | 1.78 | $2,336,259 |
| 2026-04-01 | Sun Kang | director | S | 249,037 | 16.78 | $4,178,841 |
| 2026-04-01 | Sun Kang | director | M | 1,312,505 | 1.78 | $2,336,259 |
Federal contracts
No federal contract actions on record for this recipient mapping.
Lobbying
No federal lobbying filings on record for this client mapping.
Public attention
No Wikipedia pageview data linked to this company.