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ARMSTRONG ADVISORY GROUP, INC

Position in AMPX — Amprius Technologies, Inc.

CIK 1932952 NEEDHAM, MA

Position in AMPX

as of Jun 30, 2026 · filed Jul 13, 2026
Position Value
$15,550
+$13,055 QoQ
Shares Held
1,122
+658.1% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#12
of 17 holders
Holding Since
Dec 2025
3 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in AMPX Over Time

Shares Held

Position Value (USD)

Position in Electrical Equipment & Parts

Industrials · as of Jun 30, 2026

ARMSTRONG ADVISORY GROUP, INC holds $536,709 across 9 Electrical Equipment & Parts names. AMPX ranks #4 (2.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 AMPX
Amprius Technologies, Inc.
This page
1,122 $15,550

All Filings in AMPX

Export CSV
3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $15,550 1,122
2026-03-31 $2,495 148
2025-12-31 $1,167 148