Amprius Technologies, Inc.
AMPX.WT- Exchange
- NYSE
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies
- SEC CIK
- 0001899287
In the last 90 days, Amprius Technologies, Inc. insiders filed 0 open-market purchases and 3 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Other share classesAMPX
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $1.27M in total
- 3
- 13F holdersQ2 2026
- 0
- 13F valueReported value at the end of Q2 2026
- $0
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding AMPX.WT, Q2 2026
No superinvestor reported holding AMPX.WT at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Amprius Technologies, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 25, 2026 (view filing)5:22 PM ET | Aug 21 | 4 days | Sun KangDirector | SSale | −62.1K | $10.34 | −$642.2K | −4.8%1.22M after | |
| Aug 25, 2026 (view filing)5:22 PM ET | Aug 21 | 4 days | Stefan Constantin IonelChief Technology Officer | SSale | −29.7K | $10.34 | −$306.9K | −3.7%771.6K after | |
| Aug 25, 2026 (view filing)5:21 PM ET | Aug 21-24 | 4 days | Stepien Thomas MChief Executive Officer | SSale | −31.5K | $10.26 | −$323.6K | −5.0%594.1K after | 2 lots |
| Jun 16, 2026 (view filing) | Jun 15 | 1 day | Dixon Donald RDirector | SSale | −85.0K | $17.17 | −$1.46M | −19.1%359.4K after | |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Dixon Donald RDirector | SSale | −40.0K | $19.13 | −$765.2K | −8.3%444.4K after | |
| Jun 5, 2026 (view filing) | Jun 4 | 1 day | Stepien Thomas MChief Executive Officer | SSale | −2.00K | $20.97 | −$41.9K | −0.3%625.6K after | |
| May 28, 2026 (view filing) | May 27 | 1 day | Stepien Thomas MChief Executive Officer | SSale | −4.38K | $17.19 | −$75.2K | −0.6%694.9K after | |
| May 28, 2026 (view filing) | May 27 | 1 day | Stefan Constantin IonelChief Technology Officer | SSale | −3.21K | $17.19 | −$55.1K | −0.4%801.3K after | |
| May 28, 2026 (view filing) | May 27 | 1 day | Sun KangDirector | SSale | −356 | $17.19 | −$6.12K | 0.0%1.28M after | |
| May 28, 2026 (view filing) | May 26 | 2 days | Dixon Donald RDirector | SSale | −17.9K | $17.90 | −$320.3K | −3.6%484.4K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Amprius Technologies, Inc. at the end of Q2 2026; share changes are against Q1 2026.
No institution reported holding AMPX.WT in 13F filings for Q2 2026.