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
Q2 2025 vs. Q1 2025
How the institutions holding Advantest Corp changed between Q1 2025 and Q2 2025.
All holders in Q2 2025All holders in Q1 2025
| Measure | Q1 2025 | Q2 2025 | Change |
|---|---|---|---|
| Holders | 7 | 14 | +7 |
| Shares | 28.2K | 112.0K | +83.8K (+296.8%) |
| Value | $1.24M | $8.27M | +$7.03M (+569.4%) |
New holders (8)
Institutions that held Advantest Corp at the end of Q2 2025 but not at the end of Q1 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Boston Common Asset Management, LLC | 48,992 | $3.61M | 0.10% |
| Madison Asset Management, LLC | 23,647 | $1.75M | 0.02% |
| Canopy Partners, LLC | 3,884 | $287.3K | 0.11% |
| Comprehensive Financial Planning, Inc. | 3,738 | $276.5K | 0.22% |
| Principal Street Partners, LLC | 3,016 | $223.1K | 0.02% |
| Westside Investment Management, Inc. | 876 | $64.0K | 0.01% |
| First Horizon Advisors, Inc. | 43 | $3.18K | 0.00% |
| Salomon & Ludwin, LLC | 9 | $660 | 0.00% |
Sold out (1)
Institutions that held Advantest Corp at the end of Q1 2025 and filed for Q2 2025 without it.
| Institution | Shares, Q1 2025 | Value, Q1 2025 |
|---|---|---|
| Richardson Financial Services Inc. | 15 | $662 |