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
Q1 2026 vs. Q4 2025
How the institutions holding Advantest Corp changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Q1 2026 | Change |
|---|---|---|---|
| Holders | 13 | 16 | +3 |
| Shares | 87.5K | 80.8K | −6.67K (−7.6%) |
| Value | $11.1M | $10.9M | −$165.6K (−1.5%) |
New holders (4)
Institutions that held Advantest Corp at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Accent Capital Management, LLC | 464 | $63.0K | 0.03% |
| Ancora Advisors, LLC | 34 | $4.62K | 0.00% |
| First Command Advisory Services, Inc. | 21 | $2.85K | 0.00% |
| Horrell Capital Management, Inc. | 13 | $1.77K | 0.00% |
Sold out (1)
Institutions that held Advantest Corp at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Signature Equity Partners, LLC | 188 | $23.7K |