ADVANTEST CORP- SPON ADR (ATEYY) Institutional Ownership Changes & 13F Activity
ADVANTEST CORP- SPON ADR (ATEYY). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Yousif Capital Management, Llc, Rhumbline Advisers, Ativo Capital Management Llc, Calydon Capital, and Enterprise Financial Services Corp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Calydon Capital | Buy | +1,433 | — | 1,433 | $298.15K | Q2 2026 | Aug 14, 2026 |
| Atlas Capital Advisors Inc. | Buy | +270 | — | 270 | $42.36K | Q2 2026 | Aug 13, 2026 |
| Huntington National Bank | Buy | +55 | +5500.0% | 56 | $11.65K | Q2 2026 | Aug 13, 2026 |
| Rhumbline Advisers | Buy | +2,580 | +17.3% | 17,524 | $3.65M | Q2 2026 | Aug 12, 2026 |
| Ativo Capital Management Llc | Buy | +1,711 | +14.3% | 13,637 | $2.84M | Q2 2026 | Aug 10, 2026 |
| First Command Advisory Services, Inc. | Buy | +146 | +695.2% | 167 | $34.75K | Q2 2026 | Aug 10, 2026 |
| Ima Advisory Services, Inc. | Buy | +102 | +408.0% | 127 | $26.42K | Q2 2026 | Aug 10, 2026 |
| Pnc Financial Services Group, Inc. | Buy | +91 | +14.8% | 704 | $146.47K | Q2 2026 | Aug 07, 2026 |
| Salomon & Ludwin, Llc | Sell | -85 | -16.0% | 445 | $82.33K | Q2 2026 | Aug 07, 2026 |
| Enterprise Financial Services Corp | Buy | +1,211 | — | 1,211 | $251.96K | Q2 2026 | Aug 04, 2026 |
| Canopy Partners, Llc | Buy | +1 | +0.0% | 3,766 | $783.55K | Q2 2026 | Jul 22, 2026 |
| Boston Common Asset Management, Llc | Buy | +639 | +2.0% | 32,439 | $6.75M | Q2 2026 | Jul 21, 2026 |
| Diversified Trust Co | Buy | +205 | +7.1% | 3,095 | $615.86K | Q2 2026 | Jul 17, 2026 |
| Yousif Capital Management, Llc | Sell | -5,330 | -70.2% | 2,267 | $451.10K | Q2 2026 | Jul 16, 2026 |
| Gleason Group, Inc. | Buy | +26 | — | 26 | $5.17K | Q2 2026 | Jul 13, 2026 |
| Gamma Investing Llc | Buy | +258 | +4.8% | 5,684 | $1.18M | Q2 2026 | Jul 07, 2026 |
| Ancora Advisors Llc | Sell | -34 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
Frequently asked questions about ATEYY activity
Which institutional owners are buying ATEYY?
Institutional owners buying ATEYY include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ATEYY activity?
"Buy" means an investor increased their reported position in ATEYY compared to the prior reporting period. This reflects growing exposure to ADVANTEST CORP- SPON ADR (ATEYY) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ATEYY increasing?
Institutional interest in ATEYY can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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