AMPX Amprius Technologies, Inc.

NEUTRAL Impact: 4/10 8-K
Horizon weeks Filed Apr 21, 2026 Processed 1mo ago SEC 0001899287-26-000022
8-K material event: Items 4.01

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Executive Summary

Amprius Technologies (AMPX) dismissed its auditor BDO USA and appointed Deloitte & Touche as its new independent registered public accounting firm for the 2026 fiscal year. BDO confirmed it agrees with the company's disclosures and cited no disagreements or reportable events.

Actionable Insight

Monitor future 10-K filings for any changes in audit opinion or material weaknesses; the switch to Deloitz may signal a move toward enhanced audit scrutiny, but absence of disclosed disagreements reduces near-term concern.

Key Facts

  • Amprius Technologies dismissed BDO USA, P.C. as its independent auditor.
  • Deloitte & Touche LLP has been engaged as the new auditor effective April 21, 2026.
  • BDO confirmed in Exhibit 16.1 that it agrees with the company's disclosures and reported no disagreements or material events.
  • The change was approved by the Audit Committee on April 17, 2026.

Financial Impact

No immediate financial impact disclosed; auditor change does not affect current financials.

audit qualitygovernance

Risk Factors

  • Perception of instability from auditor change, though mitigated by clean disclosure from BDO.
  • Potential for increased audit fees or more rigorous review under Deloitte.

Market Snapshot

Exchange
NYSE
Sector
Miscellaneous Electrical Machinery, Equipment & Supplies

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
8-K Filing (Primary)0001899287-26-000022
Document: bdoauditortransitionletter.htm0001899287-26-000022
Document: 0001899287-26-000022-index-headers.html0001899287-26-000022
Document: 0001899287-26-000022-index.html0001899287-26-000022
Document: 0001899287-26-000022.txt0001899287-26-000022
14 reports for AMPX
Performance horizon
50% Hit rate 3 of 6 directional calls best @ T+60▲ +46.07%Mar 4, 2026
Filters
Rows
Reports for AMPX — sortable, filterable
Type Now
Jun 11, 2026
1d ago
Insider Cluster
NEUTRAL ★ 2/10
$17.13 awaiting T+5awaiting T+5$16.31 (−4.79%)
Jun 11, 2026
1d ago
Institutional Cluster
BULLISH ★ 5/10
$16.45 awaiting T+5awaiting T+5$16.31 (−0.85%)
Jun 8, 2026
4d ago
144
BEARISH ★ 5/10
$4.84 awaiting T+5awaiting T+5$16.31 (−236.98%)
May 28, 2026
15d ago
144
NEUTRAL ★ 1/10
awaiting T+5
May 28, 2026
15d ago
Insider Cluster
BEARISH ★ 5/10
$20.28 $21.74▼ −7.20%▼ −7.49%$16.31 (+19.58%)
May 28, 2026
15d ago
Insider Cluster
BEARISH ★ 5/10
$20.28 $19.69▲ +2.91%▲ +0.39%$16.31 (+19.58%)
May 26, 2026
17d ago
Insider Cluster
BEARISH ★ 5/10
$17.16 $22.91▼ −33.51%▼ −32.30%$16.31 (+4.95%)
May 26, 2026
17d ago
144
NEUTRAL ★ 2/10
awaiting T+5
May 26, 2026
17d ago
Insider Cluster
NEUTRAL ★ 2/10
$17.16 $22.91▲ +33.51%▲ +32.30%$16.31 (−4.95%)
Apr 21, 2026
7w ago
8-K
NEUTRAL ★ 4/10
awaiting T+5
Showing 10 of 14

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