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
13F holders, Q2 2026
Institutional positions in Advantest Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 18
- +2 vs. Q1 2026
- Shares held
- 83.7K
- +2.81K (+3.5%) vs. Q1 2026
- Total value
- $17.3M
- +$6.44M (+59.1%) vs. Q1 2026
- New holders
- 4
- 10 more added
- Sold out
- 2
- 2 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATEYY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 18 | $17.3M |
| Q1 2026 | 16 | $10.9M |
| Q4 2025 | 13 | $11.1M |
| Q3 2025 | 11 | $9.78M |
| Q2 2025 | 14 | $8.27M |
| Q1 2025 | 7 | $1.24M |
| Q4 2024 | 8 | $2.02M |
| Q3 2024 | 7 | $1.25M |
| Q2 2024 | 7 | $1.24M |
| Q1 2024 | 8 | $2.66M |
| Q4 2023 | 7 | $2.58M |
| Q3 2023 | 8 | $2.37M |
| Q2 2023 | 7 | $2.30M |
| Q1 2023 | 6 | $2.22M |
| Q4 2022 | 3 | $249.6K |
| Q3 2022 | 3 | $3.00K |
| Q2 2022 | 5 | $21.0K |
| Q1 2022 | 5 | $272.0K |
| Q4 2021 | 3 | $309.0K |
| Q3 2021 | 3 | $8.00K |
| Q2 2021 | 4 | $399.0K |
| Q1 2021 | 5 | $6.94M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Advantest Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Boston Common Asset Management, LLC | 32,439 | $6.75M | 0.40% | +639+2.0% | Added |
| Rhumbline Advisers | 17,524 | $3.65M | 0.00% | +2,580+17.3% | Added |
| Ativo Capital Management LLC | 13,637 | $2.84M | 2.17% | +1,711+14.3% | Added |
| GAMMA Investing LLC | 5,684 | $1.18M | 0.04% | +258+4.8% | Added |
| Canopy Partners, LLC | 3,766 | $783.6K | 0.24% | +10.0% | Added |
| Diversified Trust Co | 3,095 | $615.9K | 0.01% | +205+7.1% | Added |
| Yousif Capital Management, LLC | 2,267 | $451.1K | 0.01% | −5,330−70.2% | Reduced |
| Principal Street Partners, LLC | 1,433 | $298.1K | 0.04% | +1,433 | New |
| Enterprise Financial Services Corp | 1,211 | $252.0K | 0.10% | +1,211 | New |
| Westside Investment Management, Inc. | 800 | $166.4K | 0.02% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 704 | $146.5K | 0.00% | +91+14.8% | Added |
| Salomon & Ludwin, LLC | 445 | $82.3K | 0.01% | −85−16.0% | Reduced |
| Atlas Capital Advisors LLC | 270 | $42.4K | 0.00% | +270 | New |
| First Command Advisory Services, Inc. | 167 | $34.7K | 0.00% | +146+695.2% | Added |
| IMA Wealth, Inc. | 127 | $26.4K | 0.00% | +102+408.0% | Added |
| Huntington National Bank | 56 | $11.7K | 0.00% | +55+5,500.0% | Added |
| Gleason Group, Inc. | 26 | $5.17K | 0.00% | +26 | New |
| Horrell Capital Management, Inc. | 13 | $2.71K | 0.00% | 00.0% | Unchanged |
| Accent Capital Management, LLC | 0 | $0 | 0.00% | −464−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −34−100.0% | Sold out |