Advantest Corp
ATEYY- Exchange
- OTC
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001158838
No open-market purchases or sales by Advantest Corp insiders were filed in the last 90 days; 18 institutions reported holding it in 13F filings for Q2 2026, worth $17.3M in total; no superinvestor holds it.
Other share classesADTTF
Q4 2025 vs. Q3 2025
How the institutions holding Advantest Corp changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Q4 2025 | Change |
|---|---|---|---|
| Holders | 11 | 13 | +2 |
| Shares | 98.1K | 87.5K | −10.6K (−10.8%) |
| Value | $9.78M | $11.1M | +$1.28M (+13.1%) |
New holders (3)
Institutions that held Advantest Corp at the end of Q4 2025 but not at the end of Q3 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Ativo Capital Management LLC | 11,900 | $1.50M | 1.32% |
| Signature Equity Partners, LLC | 188 | $23.7K | 0.01% |
| IMA Wealth, Inc. | 29 | $3.66K | 0.00% |
Sold out (1)
Institutions that held Advantest Corp at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Madison Asset Management, LLC | 14,946 | $1.50M |