Insider · CIK 0001698362
Sandra Wallach
Files at AMPX (Amprius Technologies, Inc.). First filing Nov 22, 2024, latest Aug 25, 2025.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
AMPX: Amprius Technologies, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 49Moderate | Amprius Technologies, Inc. | $194k 28,390 shares | -3% | +738% from low-22% from high | |
| 45Moderate | Amprius Technologies, Inc. | $67k 27,595 shares | -3% | +199% from low-37% from high | |
| 44Moderate | Amprius Technologies, Inc. | $57k 18,142 shares | -3% | +270% from low-22% from high | |
| 43Moderate | Amprius Technologies, Inc. | $34k 17,158 shares | -2% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 23, 2025 | AMPX Amprius Technologies, Inc. | 27,595 0.02% of outstanding | $67k | May 21, 2025 | none |
| Feb 24, 2025 | AMPX Amprius Technologies, Inc. | 18,142 0.02% of outstanding | $57k | Feb 21, 2025 | none |
| Nov 21, 2024 | AMPX Amprius Technologies, Inc. | 17,158 0.02% of outstanding | $34k | Nov 21, 2024 | none |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 21, 2025 | AMPX Amprius Technologies, Inc. | SOpen-market sale Common stock | -28,390 | $6.82 | $194k | 1,005,275 | Aug 25, 2025 |
| May 21, 2025 | AMPX Amprius Technologies, Inc. | SOpen-market sale Common stock | -27,595 | $2.43 | $67k | 1,033,665 | May 23, 2025 |
| Mar 19, 2025 | AMPX Amprius Technologies, Inc. | AGrant or award Common stock | +383,260 | $0.00 | $0 | 1,061,260 | Mar 21, 2025 |
| Feb 21, 2025 | AMPX Amprius Technologies, Inc. | SOpen-market sale Common stock | -18,142 | $3.13 | $57k | 678,000 | Feb 24, 2025 |
| Nov 21, 2024 | AMPX Amprius Technologies, Inc. | SOpen-market sale Common stock | -17,158 | $1.96 | $34k | 696,142 | Nov 22, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.