Advantest Corp.- Spon ADRATEYY

13F holders, Q4 2025 (December 31)
13holders +2
2new positions
1sold out
$126.38avg. 13F price*

At the end of Q4 2025, 13 institutions reported holding Advantest Corp.- Spon ADR (ATEYY) in their 13F filings, up 2 from Q3 2025. 2 opened new positions and 1 sold out. The largest holders were Boston Common Asset Management, LLC ($5.0M), Rhumbline Advisers ($1.8M) and Ativo Capital Management LLC ($1.5M).

Company
Advantest Corp.- Spon ADR
CUSIP
00762U200
Latest filing quarter
Q2 2026

History

Number of 13F holders

05101520 Q1 2024: 8Q1 2024Q2 2024: 7Q2 2024Q3 2024: 7Q3 2024Q4 2024: 8Q4 2024Q1 2025: 7Q1 2025Q2 2025: 14Q2 2025Q3 2025: 11Q3 2025Q4 2025: 13Q4 2025Q1 2026: 16Q1 2026Q2 2026: 18Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions2$1.5M
Exits1$1.5M

All 13F filers, Q3 2025 → Q4 2025: 16,323 shares bought and 27,076 shares sold, net −10,753 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 13 holders

Boston Common Asset Management, LLC 0.30% Reduce -22.1% 40,081 $5.0M
Rhumbline Advisers 0.00% Add +32.6% 13,985 $1.8M
Ativo Capital Management LLC 1.32% New 11,900 $1.5M
Yousif Capital Management, LLC 0.01% Reduce -1.0% 7,597 $1.0M
GAMMA Investing LLC 0.03% Add +7.8% 5,064 $640K
Canopy Partners, LLC 0.16% Reduce -4.4% 3,776 $477K
Diversified Trust Co. 0.01% Add +7.7% 2,869 $359K
Westside Investment Management, Inc. 0.03% Reduce -27.2% 1,276 $165K
PNC Financial Services Group, Inc. 0.00% Add +246.2% 450 $57K
Salomon & Ludwin, LLC 0.00% Add +23.5% 300 $41K
Signature Equity Partners, LLC 0.01% — 188 $24K
IMA Advisory Services, Inc. 0.00% New 29 $4K
Huntington National Bank 0.00% Add +800.0% 9 $1K

"% of holder's portfolio" is ATEYY's weight in each manager's 13F, not the share of Advantest Corp.- Spon ADR the manager owns.