11 insiders reported 91 Form 4 transactions for Amprius Technologies, Inc. (AMPX) over the past 18 months (most recent 2026-06-16). Recent activity: DIXON DONALD R (Director) Buy 10,423 shares, BAYLESS KATHLEEN A (Director) Buy 10,423 shares, Chu Steven (Director) Buy 10,423 shares, SATTERTHWAITE LIVINGSTON (Director) Buy 10,423 shares, DIXON DONALD R (Director) Sell 85,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-16 | DIXON DONALD R | Director | Buy | 10,423 | $0 |
| 2026-06-16 | BAYLESS KATHLEEN A | Director | Buy | 10,423 | $0 |
| 2026-06-16 | Chu Steven | Director | Buy | 10,423 | $0 |
| 2026-06-16 | SATTERTHWAITE LIVINGSTON | Director | Buy | 10,423 | $0 |
| 2026-06-16 | DIXON DONALD R | Director | Sell | 85,000 | $1.5M |
| 2026-06-11 | DIXON DONALD R | Director | Sell | 40,000 | $765,200 |
| 2026-06-05 | Stepien Thomas M | Chief Executive Officer | Sell | 30,384 | $0 |
| 2026-06-05 | Stepien Thomas M | Chief Executive Officer | Sell | 36,914 | $0 |
| 2026-06-05 | Stepien Thomas M | Chief Executive Officer | Buy | 36,914 | $0 |
| 2026-06-05 | Stepien Thomas M | Chief Executive Officer | Sell | 2,000 | $41,940 |
| 2026-05-28 | Stepien Thomas M | Chief Executive Officer | Sell | 4,375 | $75,222 |
| 2026-05-28 | Sun Kang | Director | Sell | 356 | $6,121 |
| 2026-05-28 | Stefan Constantin Ionel | Chief Technology Officer | Sell | 3,208 | $55,157 |
| 2026-05-28 | DIXON DONALD R | Director | Sell | 17,895 | $320,252 |
| 2026-05-26 | Sun Kang | Director | Sell | 67,796 | $1.0M |
| 2026-05-26 | Stefan Constantin Ionel | Chief Technology Officer | Sell | 28,812 | $426,083 |
| 2026-05-26 | Stepien Thomas M | Chief Executive Officer | Sell | 60,702 | $897,685 |
| 2026-05-07 | Sun Kang | Director | Buy | 6,250 | $0 |
| 2026-05-07 | Stepien Thomas M | Chief Executive Officer | Buy | 200,000 | $0 |
| 2026-04-02 | Sun Kang | Director | Buy | 1.3M | $2.3M |
| 2026-04-02 | Sun Kang | Director | Buy | 187,495 | $689,982 |
| 2026-04-02 | Sun Kang | Director | Sell | 1.3M | $19.7M |
| 2026-04-02 | Sun Kang | Director | Sell | 249,037 | $4.2M |
| 2026-03-24 | Sun Kang | Director | Sell | 152,823 | $2.9M |
| 2026-03-24 | Sun Kang | Director | Sell | 65,046 | $1.2M |
Source: SEC Form 4 filings · as of 2026-06-16