Who owns ADVANTEST CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ATEYY from SEC Form 13F filings across 18 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 18 institutions disclosed 83,664 shares of ADVANTEST CORP worth $17.3M — about 0% of shares outstanding; the largest disclosed holder is Boston Common Asset Management, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
18
13F holders
$17.3M
value, 2026 filers
0%
of shares outstanding (83,664 sh)
5
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ATEYY's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Boston Common Asset Management, LLC | 32,439 | $6.7M | 0.4% | 0% | +2.0% |
| 2 | RHUMBLINE ADVISERS | 17,524 | $3.6M | 0.0% | 0% | +17.3% |
| 3 | Ativo Capital Management LLCNEW | 13,637 | $2.8M | 2.2% | 0% | new |
| 4 | GAMMA Investing LLC | 5,684 | $1.2M | 0.0% | 0% | +4.8% |
| 5 | Canopy Partners, LLC | 3,766 | $783,554 | 0.2% | 0% | 0.0% |
| 6 | DIVERSIFIED TRUST CO | 3,095 | $615,858 | 0.0% | 0% | +7.1% |
| 7 | YOUSIF CAPITAL MANAGEMENT, LLC | 2,267 | $451,099 | 0.0% | 0% | -70.2% |
| 8 | Calydon CapitalNEW | 1,433 | $298,150 | 0.0% | 0% | new |
| 9 | Enterprise Financial Services CorpNEW | 1,211 | $251,959 | 0.1% | 0% | new |
| 10 | Westside Investment Management, Inc. | 800 | $166,448 | 0.0% | 0% | 0.0% |
| 11 | PNC Financial Services Group, Inc. | 704 | $146,474 | 0.0% | 0% | +14.8% |
| 12 | Salomon & Ludwin, LLC | 445 | $82,325 | 0.0% | 0% | -16.0% |
| 13 | ATLAS CAPITAL ADVISORS INC.NEW | 270 | $42,361 | 0.0% | 0% | new |
| 14 | First Command Advisory Services, Inc. | 167 | $34,746 | 0.0% | 0% | +695.2% |
| 15 | IMA Advisory Services, Inc. | 127 | $26,424 | 0.0% | 0% | +408.0% |
| 16 | HUNTINGTON NATIONAL BANK | 56 | $11,651 | 0.0% | 0% | +5500.0% |
| 17 | Gleason Group, Inc.NEW | 26 | $5,174 | 0.0% | 0% | new |
| 18 | Horrell Capital Management, Inc. | 13 | $2,705 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.