ADVANTEST CORP - ATEYY
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 3 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Boston Common Asset Management, LLC | History | Reduced | 40,081 | 5,020 | 0.25% | 0.14% | 1 | -11,407 | -22.15% | Q4 2025 | Jan 15, 2026 |
| RHUMBLINE ADVISERS | History | Added to | 13,985 | 1,766 | 0.0% | 0.0% | 2 | +3,436 | 32.57% | Q4 2025 | Feb 13, 2026 |
| Ativo Capital Management LLC | History | New | 11,900 | 1,503 | 1.32% | — | 3 | +11,900 | New | Q4 2025 | Feb 02, 2026 |
| YOUSIF CAPITAL MANAGEMENT, LLC | History | Reduced | 7,597 | 1,002 | 0.01% | 0.01% | 4 | -75 | -0.98% | Q4 2025 | Jan 21, 2026 |
| GAMMA Investing LLC | History | Added to | 5,064 | 639 | 0.03% | 0.03% | 5 | +368 | 7.84% | Q4 2025 | Jan 05, 2026 |
| Canopy Partners, LLC | History | Reduced | 3,776 | 477 | 0.16% | 0.13% | 6 | -172 | -4.36% | Q4 2025 | Feb 12, 2026 |
| Diversified Trust Co | History | Added to | 2,869 | 359 | 0.01% | 0.01% | 7 | +205 | 7.7% | Q4 2025 | Jan 09, 2026 |
| Westside Investment Management, Inc. | History | Reduced | 1,276 | 165 | 0.03% | 0.03% | 8 | -476 | -27.17% | Q4 2025 | Jan 23, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Added to | 450 | 56 | 0.0% | 0.0% | 9 | +320 | 246.15% | Q4 2025 | Feb 06, 2026 |
| Salomon & Ludwin, LLC | History | Added to | 300 | 41 | 0.0% | 0.0% | 10 | +57 | 23.46% | Q4 2025 | Jan 28, 2026 |
| Signature Equity Partners, LLC | History | New | 188 | 23 | 0.01% | — | 11 | +188 | New | Q4 2025 | Feb 17, 2026 |
| IMA Advisory Services, Inc. | History | New | 29 | 3 | 0.0% | — | 12 | +29 | New | Q4 2025 | Feb 11, 2026 |
| HUNTINGTON NATIONAL BANK | History | Added to | 9 | 1 | 0.0% | — | 13 | +8 | 800.0% | Q4 2025 | Feb 09, 2026 |
| Madison Asset Management, LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -14,946 | -100.0% | Q3 2025 | Nov 06, 2025 |