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 2026 vs. Q1 2026
How the institutions holding Advantest Corp changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Q2 2026 | Change |
|---|---|---|---|
| Holders | 16 | 18 | +2 |
| Shares | 80.8K | 83.7K | +2.81K (+3.5%) |
| Value | $10.9M | $17.3M | +$6.44M (+59.1%) |
New holders (4)
Institutions that held Advantest Corp at the end of Q2 2026 but not at the end of Q1 2026.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Principal Street Partners, LLC | 1,433 | $298.1K | 0.04% |
| Enterprise Financial Services Corp | 1,211 | $252.0K | 0.10% |
| Atlas Capital Advisors LLC | 270 | $42.4K | 0.00% |
| Gleason Group, Inc. | 26 | $5.17K | 0.00% |
Sold out (2)
Institutions that held Advantest Corp at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Accent Capital Management, LLC | 464 | $63.0K |
| Ancora Advisors, LLC | 34 | $4.62K |