| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chief Technology Officer
2 companies
Stefan Constantin Ionel is a Chief Technology Officer at Amprius Technologies, Inc. with holdings across 2 companies. Recent SEC Form 4 filings include 0 buys and 13 sells.
Estimated insider holdings value: $18.7M based on current market prices.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Jan 28, 2026 | AMPX-WT Amprius Technologies, Inc. | Chief Technology Officer | Sale+OE | 39,690 | $12.00 | $476,351.44 | -5.0% | - | - | |
| Jan 23, 2026 | AMPX-WT Amprius Technologies, Inc. | Chief Technology Officer | Sale+OE | 567,707 | $12.03 | $6,830,523.48 | -20.2% | - | - | |
| Dec 11, 2025 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sale+OE | 198,255 | $10.51 | $2,083,382.49 | -20.9% | +62.5% | - | |
| Nov 21, 2025 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 25,024 | $10.08 | $252,274.45 | -3.0% | +2.4% | - | |
| Aug 21, 2025 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 19,159 | $6.82 | $130,591.58 | -2.2% | +59.2% | - | |
| May 21, 2025 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 20,366 | $2.43 | $49,530.11 | -2.3% | +178.5% | - | |
| Feb 21, 2025 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 9,066 | $3.13 | $28,405.59 | -2.1% | -16.0% | +217.3% | |
| Nov 21, 2024 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 8,575 | $1.96 | $16,846.45 | -2.0% | +69.7% | +410.6% | |
| Aug 21, 2024 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 8,800 | $1.04 | $9,152.00 | -2.2% | +91.7% | +528.7% | |
| May 22, 2024 | AMPX Amprius Technologies, Inc. | Chief Technology Officer | Sell | 9,393 | $1.34 | $12,587.18 | -1.2% | -26.7% | +72.6% |