Amprius Technologies (NYSE: AMPX) CEO logs August stock sales and gifts
Rhea-AI Filing Summary
Amprius Technologies, Inc. (AMPX) reported insider activity by Chief Executive Officer and director Thomas M. Stepien involving sales, gifts, and a transfer of common stock. On August 21, 2026 he sold 23,529 shares at an average of $10.341 per share in multiple trades between $10.10 and $10.48, in a non‑discretionary, issuer‑mandated sell‑to‑cover arrangement for tax withholding tied to restricted stock unit vesting. On August 24, 2026 he sold an additional 8,000 shares at $10.03 per share. On August 25, 2026 he made bona fide gifts totaling 15,346 shares, including 346 shares transferred to the Rogers Stepien Family Revocable Trust. The same 346 shares were recorded as an indirect acquisition by that trust, which held 37,260 shares after the transfer. Reported holdings include 568,750 restricted stock units, each convertible into one share upon vesting.
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Insights
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Insider Trade Summary
Net Seller: 46,529 shares
Net Sell
7 txns
Insider
Stepien Thomas M
Role
Chief Executive Officer
Sold
31,529 shs ($324K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Gift | Common stock F4, F3 | 5,000 | $0.00 | $0.00 |
| Gift | Common stock F4, F3 | 5,000 | $0.00 | $0.00 |
| Gift | Common stock F4, F3 | 5,000 | $0.00 | $0.00 |
| Gift | Common stock F5, F3 | 346 | $0.00 | $0.00 |
| Grant/Award | Common stock F5, F6 | 346 | $0.00 | $0.00 |
| Sale | Common stock F3 | 8,000 | $10.03 | $80K |
| Sale | Common stock F1, F2, F3 | 23,529 | $10.341 | $243K |
Holdings After Transaction:
Common stock — 578,750 shares (Direct);
Common stock — 37,260 shares (Indirect, See Footnote)
Footnotes (6)
- F1. This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.
- F2. The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.10 to $10.48, 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. Includes 568,750 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.
- F4. These transfers were made on the same date as bona fide gifts.
- F5. These securities were transferred by the reporting person to the Rogers Stepien Family Revocable Trust, for which the reporting person and his spouse are co-trustees.
- F6. These securities are held by the Rogers Stepien Family Revocable Trust, for which the reporting person and his spouse are co-trustees.
Key Figures
Shares sold on 2026-08-21: 23,529 shares at $10.341 per share
Shares sold on 2026-08-24: 8,000 shares at $10.03 per share
Total gift transfers: 15,346 shares
+4 more
7 metrics
Shares sold on 2026-08-21
23,529 shares at $10.341 per share
Open-market sale with trades from $10.10 to $10.48
Shares sold on 2026-08-24
8,000 shares at $10.03 per share
Open-market or private sale
Total gift transfers
15,346 shares
Bona fide gifts of common stock on 2026-08-25
Shares transferred to family trust
346 shares
Transferred by the CEO to the Rogers Stepien Family Revocable Trust
Trust holdings after transfer
37,260 shares
Indirect holdings by Rogers Stepien Family Revocable Trust after 2026-08-25
Restricted stock units included in holdings
568,750 restricted stock units
Each RSU represents a contingent right to one share of common stock
Net buy/sell shares
31,529 shares net sell
Aggregate of reported buy/sell transactions in this Form 4
Key Terms
restricted stock units, bona fide gift, sell-to-cover arrangements, non-discretionary, +1 more
5 terms
restricted stock units financial
"Includes 568,750 restricted stock units, each of which represents a contingent right"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
bona fide gift financial
"These transfers were made on the same date as bona fide gifts"
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
sell-to-cover arrangements financial
"pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer"
non-discretionary financial
"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements"
indirect ownership financial
"These securities are held by the Rogers Stepien Family Revocable Trust"
FAQ
What insider transactions did AMPX CEO Thomas M. Stepien report in this Form 4?
Thomas M. Stepien reported two sales of Amprius Technologies, Inc. common stock totaling 31,529 shares, four bona fide gifts totaling 15,346 shares, and an indirect acquisition of 346 shares by the Rogers Stepien Family Revocable Trust.
What are the indirect AMPX holdings reported for the CEO’s family trust?
After the August 25, 2026 transfer, the Rogers Stepien Family Revocable Trust, for which Thomas Stepien and his spouse are co‑trustees, held 37,260 shares of Amprius Technologies, Inc. common stock as an indirect holding.
How many restricted stock units does the AMPX CEO have according to this filing?
The filing states that the CEO’s reported holdings include 568,750 restricted stock units, each representing a contingent right to receive one share of Amprius Technologies, Inc. common stock, subject to applicable vesting schedules and conditions.
AI-generated analysis. How Rhea-AI works. Not financial advice.
