SEC 13F Intelligence

ATEYYADVANTEST CORP

CUSIP 00762U200 · Yahoo Finance ↗ · Google Finance ↗

Advantest Corp (ATEYY) has 14 institutional holders in Filings Flow’s 13F database, together reporting 77.2K shares worth $10M as of Q1 2026. The largest reported holders are Boston Common Asset Management, LLC, Rhumbline Advisers, and Madison Asset Management, LLC.

Institutional Holders
14
Q1 2026
Reported Value
$10M
Ticker
ATEYY
Quarters Tracked
10

Ownership Trend

Institutional holders
Q4 ’18: 1Q4 ’18Q1 ’19: 1Q2 ’19: 1Q2 ’19Q3 ’19: 3Q2 ’21: 6Q2 ’21Q4 ’21: 3Q4 ’22: 3Q4 ’22Q4 ’25: 12Q1 ’26: 14Q1 ’26Q2 ’26: 1filingsflow.com
Total reported value
Q4 ’18: $220,000Q4 ’18Q1 ’19: $235,000Q2 ’19: $275,000Q2 ’19Q3 ’19: $320,000Q2 ’21: $8MQ2 ’21Q4 ’21: $309,000Q4 ’22: $249,560Q4 ’22Q4 ’25: $10MQ1 ’26: $10MQ1 ’26Q2 ’26: $1Mfilingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Boston Common Asset Management, LLC$1.7B AUM0.30%$5M40.1KQ1 2026OLDER
Canopy Partners, LLC$291M AUM0.18%$511,3253.8KQ1 2026OLDER
GAMMA Investing LLC$2.7B AUM0.04%$1M5.7KQ2 2026
Accent Capital Management, LLC$206M AUM0.03%$63,016464Q1 2026OLDER
Westside Investment Management, Inc.$653M AUM0.02%$108,512800Q1 2026OLDER
Madison Asset Management, LLC$8.1B AUM0.02%$2M14.9KQ3 2025OLDER
Signature Equity Partners, LLC$186M AUM0.01%$23,749188Q4 2025OLDER
YOUSIF CAPITAL MANAGEMENT, LLC$8.5B AUM0.01%$970,8157.6KQ1 2026OLDER
Diversified Trust Co$5.4B AUM0.01%$369,3102.9KQ1 2026OLDER
Salomon & Ludwin, LLC$1.1B AUM0.01%$71,889530Q1 2026OLDER
RHUMBLINE ADVISERS$116.9B AUM0.00%$2M14.9KQ1 2026OLDER
Horrell Capital Management, Inc.$219M AUM0.00%$1,76613Q1 2026OLDER
IMA Advisory Services, Inc.$1.0B AUM0.00%$3,39525Q1 2026OLDER
PNC FINANCIAL SERVICES GROUP, INC.$173.2B AUM0.00%$83,252613Q1 2026OLDER
First Command Advisory Services, Inc.$14.8B AUM0.00%$2,85221Q1 2026OLDER
HUNTINGTON NATIONAL BANK$18.1B AUM0.00%$1361Q1 2026OLDER

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.