This is a tax-withholding sale tied to RSU vesting, not a discretionary insider disposition. No actionable signal for AMPX-WT warrant holders. Monitor the company's next earnings for operational updates.
Price Chart
Executive Summary
Director Sun Kang filed a Form 144 notice of intent to sell 356 shares of Amprius Technologies common stock, valued at approximately $6,121, to cover withholding taxes upon vesting of restricted stock units. The filing is a routine administrative step tied to RSU settlement, not a discretionary insider sale.
Key Facts
- Director Sun Kang filed Form 144 on 2026-05-28 for 356 shares of common stock.
- Estimated aggregate value of proposed sale: $6,120.89.
- Sale is to cover withholding taxes upon vesting of restricted stock units (RSUs).
- Shares acquired on 2026-05-20 via RSU release (compensation, not open-market purchase).
- No prior open-market sales by this insider in the filing; all listed prior sales are under a 10b5-1 plan.
- Filing relates to AMPX common, not the AMPX-WT warrant ticker.
Financial Impact
Proceeds of approximately $6,121 — immaterial relative to any reasonable market cap or insider holding size.
Risk Factors
- None from this filing — the sale is mandatory and de minimis.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001476220-26-000028 |
| Document: 0001476220-26-000028-index.html | 0001476220-26-000028 |
| Document: 0001476220-26-000028.txt | 0001476220-26-000028 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 9, 2026 17d ago | S-3ASR | $8.87 | awaiting T+60 | — | $8.69 (−2.09%) |
Sep 25, 2026 4w ago | 8-K | $9.60 | awaiting T+60 | — | $8.69 (−9.53%) |
Aug 25, 2026 8w ago | Insider Cluster | $10.20 | awaiting T+60 | — | $8.69 (−14.85%) |
Aug 13, 2026 10w ago | 8-K | $12.51 | awaiting T+60 | — | $8.69 (−30.58%) |
Aug 1, 2026 12w ago | Institutional Cluster | $10.12 | awaiting T+60 | — | $8.69 (+14.18%) |
Jun 11, 2026 19w ago | Insider Cluster | $16.31 $10.39 | ▼ −36.30% | ▼ −39.56% | $8.69 (−46.75%) |
Jun 11, 2026 19w ago | Institutional Cluster | $17.10 $9.89 | ▼ −42.16% | ▼ −46.56% | $8.69 (−49.21%) |
Jun 8, 2026 20w ago | 144 | $4.84 | awaiting T+60 | — | $8.69 (−79.44%) |
May 28, 2026 21w ago | 144 | — | awaiting T+60 | — | — |
May 28, 2026 21w ago | Insider Cluster | $20.28 $9.86 | ▲ +51.38% | ▲ +52.56% | $8.69 (+57.17%) |
US Market Status
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