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AMPX · Current Report (Form 8-K) · Filed August 13, 2026

Amprius Technologies Inc — Current Report (Form 8-K)

Form
8-K
Filed
August 13, 2026
Period
Aug 7, 2026
Ticker
AMPX
Accession
0001899287-26-000062
Boardroom Alpha · Filing insights

Amprius extends Fremont lease by 84 months to 2034; two 5-year renewal options; approx. $10.5M future payments.

About Amprius Technologies Inc
Market cap
$1.5B
1Y TSR
+47.4%
3Y TSR
+23.6%
Board grade
C
Sector
Industrials
CEO
Thomas M Stepien
Last annual meeting: Jun 11, 2026 · View full Amprius Technologies Inc profile →
ampx-20260807

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
_________________________
FORM 8-K
_________________________
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): August 7, 2026
_________________________
LOGO - FOR 10-K2.jpg
AMPRIUS TECHNOLOGIES, INC.
(Exact name of Registrant as Specified in Its Charter)
_________________________
Delaware001-4131498-1591811
(State or Other Jurisdiction
of Incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
1180 Page Avenue, Fremont, California
94538
(Address of Principal Executive Offices)(Zip Code)
Registrant’s Telephone Number, Including Area Code: (800) 425-8803
N/A
(Former Name or Former Address, if Changed Since Last Report)
_________________________
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
oPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading
Symbol(s)
Name of each exchange
on which registered
Common stock, par value $0.0001 per shareAMPXThe New York Stock Exchange
Redeemable warrants, each exercisable for one share of common stock at an exercise price of $11.50AMPX.WThe New York Stock Exchange
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company x
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o



Item 1.01    Entry into a Material Definitive Agreement.
On August 7, 2026, Amprius Technologies, Inc. (the “Company”) entered into the Second Amendment to Industrial Lease Agreement (the “Second Amendment”) with Los Altos Fields, LLC, amending the Company's existing lease for its facility located at 1000-1180 Page Avenue, Fremont, California. The Second Amendment extends the lease term, which had been scheduled to expire on June 30, 2027, for an additional eighty-four (84) months, commencing July 1, 2027 and expiring June 30, 2034. The Second Amendment provides that the Company has two options to extend the lease term for additional five-year periods, subject to the terms and conditions set forth in the lease. Base rent during the extended term is subject to annual escalation, in accordance with the base rent schedule set forth in the Second Amendment, and the Company will continue to pay its percentage share of operating expenses in accordance with the lease. The total future lease payments, after amendment, are expected to be approximately $10.5 million.
The foregoing description of the Second Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Second Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K.
Item 2.03    Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
The information included in Item 1.01 of this Current Report on Form 8-K is incorporated into this Item 2.03 by reference.
Item 9.01    Financial Statements and Exhibits.
(d) Exhibits.
Exhibit
Number
Description
10.1
104Cover Page Interactive Data File (embedded within the Inline XBRL document)




SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
AMPRIUS TECHNOLOGIES, INC.
Date: August 13, 2026By:/s/ Ricardo C. Rodriguez
Name: Ricardo C. Rodriguez
Title: Chief Financial Officer

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Reference

Frequently asked questions

When did Amprius Technologies Inc file this 8-K?
Amprius Technologies Inc (AMPX) filed this Current Report (Form 8-K) with the SEC on August 13, 2026. The accession number assigned by EDGAR is 0001899287-26-000062.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Amprius extends Fremont lease by 84 months to 2034; two 5-year renewal options; approx. $10.5M future payments. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Amprius Technologies Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Amprius Technologies Inc has filed under CIK 1899287, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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