HSIEH Wen Hsuan 4
4 · Amprius Technologies, Inc. · Filed Mar 13, 2026
Research Summary
AI-generated summary of this filing
Amprius (AMPX) Director Wen Hsuan Hsieh Exercises Options, Sells Shares
What Happened
Wen Hsuan Hsieh, a director of Amprius Technologies (AMPX), exercised options (code M) to acquire 270,251 shares at $2.61 per share (cost ≈ $705,355). On the same day (2026-03-12) Hsieh sold a total of 413,146 shares in open-market transactions: 282,500 shares at an average $18.55 (≈ $5,239,245) and 130,646 shares at an average $18.22 (≈ $2,380,788). The filing also records the derivative/option conversion entry corresponding to the exercise. Overall gross proceeds from the open-market sales were about $7.62M; the exercise cost was about $705k.
Key Details
- Transaction date: March 12, 2026; Form 4 filed March 13, 2026 (timely within reporting window).
- Option exercise: 270,251 shares acquired at $2.61 each (≈ $705,355).
- Open-market sales: 282,500 shares at avg $18.55 (price range $18.45–$18.78) and 130,646 shares at avg $18.22 (price range $18.12–$18.39). Average prices are reported; footnotes F2 and F3 give the per-trade ranges.
- Shares owned after the transactions: not specified in the provided filing excerpt.
- Footnote F1: includes 44,444 restricted stock units (RSUs) that are contingent on vesting.
- Exhibit/Remark: Exhibit 24 (Power of Attorney) attached to the filing.
Context
This filing shows an option exercise combined with same-day sales (often a cashless exercise pattern). Exercise (acquisition) is a purchase event, but because the exercised shares and other holdings were sold the same day, the net effect for the director was a substantial disposition. These are routine insider transactions in many cases; the filing is factual and does not indicate the insider’s motives.
Insider Transaction Report
- Exercise/Conversion
Common stock
[F1]2026-03-12$2.61/sh+270,251$705,355→ 457,590 total - Sale
Common stock
[F2][F1]2026-03-12$18.55/sh−282,500$5,239,245→ 175,090 total - Sale
Common stock
[F3][F1]2026-03-12$18.22/sh−130,646$2,380,788→ 44,444 total - Exercise/Conversion
Stock Option (right to buy)
2026-03-12$2.61/sh−270,251$705,355→ 0 totalExercise: $2.61From: 2022-09-14Exp: 2032-04-13→ Common stock (270,251 underlying)
Footnotes (3)
- [F1]Includes 44,444 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.
- [F2]The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $18.45 to $18.78, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
- [F3]The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $18.12 to $18.39, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.