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AMPX
NYSE Manufacturing

Officer and Director Files Intent to Sell $7.6M in Shares

Arie Shkolnikov · Analysis by Wiseek AI
More coverage: Electrical Equipment Stocks · Industrial
Sentiment info
Negative
Importance info
8
Price
$18.18
Mkt Cap
$2.507B
52W Low
$1.74
52W High
$19.4
52W Position info
945% above low
Off High info
6.3% below high
Rel. Volume info
1.3× avg
Market data snapshot near publication time

AMPX has more than doubled off its 52-week low of $1.74.

Summary

Wen Hsuan Hsieh, an Officer and Director of Amprius Technologies, filed a Form 144 indicating an intent to sell 413,146 shares valued at approximately $7.6 million.


Key Events · Ownership and Investor Activity · AMPX

  • Officer/Director Files Intent to Sell

    Wen Hsuan Hsieh, an Officer and Director of Amprius Technologies, filed a Form 144 to sell 413,146 shares of common stock.

  • Significant Proposed Sale Value

    The proposed sale has an approximate market value of $7,618,412.24, representing about 0.30% of the company's market capitalization.

  • Follows Recent Positive Financials

    This intent to sell comes shortly after the company reported strong Q4 and full-year 2025 financial results on March 4th and 6th.

  • Contributes to Insider Distribution Pattern

    This filing adds to a broader pattern of insider selling, with over $8.1 million in net insider sales reported across the company over the last 90 days.


Analysis · AMPX · Manufacturing

This Form 144 filing by Wen Hsuan Hsieh, an Officer and Director, signals a significant intent to liquidate a portion of their holdings. The proposed sale of over $7.6 million represents a notable amount, especially following recent positive financial reports from the company. While the filing indicates some shares were acquired through option exercise and restricted stock vesting, the overall intent to sell by a high-ranking insider can be perceived negatively by investors, suggesting a desire to lock in gains. This adds to a pattern of insider distribution observed over the past 90 days.

At the time of this filing, AMPX was trading at $18.18 on NYSE in the Manufacturing sector, with a market capitalization of approximately $2.5B. The 52-week trading range was $1.74 to $19.40. This filing was assessed with negative market sentiment and an importance score of 8 out of 10.

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AMPX - Latest Insights

AMPX
May 19, 2026, 4:40 PM EDT
Filing Type: 8-K/A
Importance Score:
8
Price at Filing: $15.40
Real-time Price: $9.64 info
Change: -$5.76 (-37%) info
Market Cap: $1.365B info
AMPX
May 07, 2026, 5:36 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $16.42
Real-time Price: $9.64 info
Change: -$6.78 (-41%) info
Market Cap: $1.365B info
AMPX
May 07, 2026, 4:52 PM EDT
Filing Type: 10-Q
Importance Score:
7
Price at Filing: $16.34
Real-time Price: $9.64 info
Change: -$6.70 (-41%) info
Market Cap: $1.365B info
AMPX
May 06, 2026, 4:40 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $20.38
Real-time Price: $9.64 info
Change: -$10.74 (-53%) info
Market Cap: $1.365B info
AMPX
May 06, 2026, 4:11 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $20.05
Real-time Price: $9.64 info
Change: -$10.41 (-52%) info
Market Cap: $1.365B info