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GROUP ONE TRADING LLC

Position in AMPX — Amprius Technologies, Inc.

CIK 932540 CHICAGO, IL

Position in AMPX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,956,504
+$2,652,571 QoQ
Shares Held
213,312
+638.3% QoQ
Ownership
0.146%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#65
of 258 holders
Holding Since
Dec 2023
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AMPX Over Time

Shares Held

Position Value (USD)

Position in Electrical Equipment & Parts

Industrials · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $55,808,267 across 19 Electrical Equipment & Parts names. AMPX ranks #5 (5.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 AMPX
Amprius Technologies, Inc.
This page
213,312 $2,956,504

All Filings in AMPX

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,956,504 213,312
2025-09-30 $303,933 28,891
2025-06-30 $48,431 11,504
2025-03-31 $240,934 89,901
2024-12-31 $415,570 148,418
2024-03-31 $6,428 2,426
2023-12-31 $82,624 15,619