17 institutions reported holding $10.9M of Advantest Corp Sp ADR (ATEYY) in SEC 13F filings for 2026-03-31. Largest institutional holders: Boston Common Asset Management, LLC ($4.3M), RHUMBLINE ADVISERS ($2.0M), Ativo Capital Management LLC ($1.6M), YOUSIF CAPITAL MANAGEMENT, LLC ($970,815), GAMMA Investing LLC ($736,905). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Boston Common Asset Management, LLC | $4.3M | 31,800 | Trimmed |
| 2 | RHUMBLINE ADVISERS | $2.0M | 14,944 | Added |
| 3 | Ativo Capital Management LLC | $1.6M | 11,926 | Added |
| 4 | YOUSIF CAPITAL MANAGEMENT, LLC | $970,815 | 7,597 | Hold |
| 5 | GAMMA Investing LLC | $736,905 | 5,426 | Added |
| 6 | Canopy Partners, LLC | $511,325 | 3,765 | Trimmed |
| 7 | Diversified Trust Co | $369,310 | 2,890 | Added |
| 8 | Westside Investment Management, Inc. | $108,512 | 800 | Trimmed |
| 9 | PNC Financial Services Group, Inc. | $83,252 | 613 | Added |
| 10 | Salomon & Ludwin, LLC | $71,889 | 530 | Added |
| 11 | Accent Capital Management, LLC | $63,016 | 464 | New |
| 12 | Ancora Advisors LLC | $4,618 | 34 | New |
| 13 | IMA Advisory Services, Inc. | $3,395 | 25 | Trimmed |
| 14 | First Command Advisory Services, Inc. | $2,852 | 21 | New |
| 15 | Horrell Capital Management, Inc. | $1,766 | 13 | New |
| 16 | HUNTINGTON NATIONAL BANK | $136 | 1 | Trimmed |
| 17 | Signature Equity Partners, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31