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Advantest Corp. (ADTTF)
OTHER OTC:ADTTF
US Market
ADTTF
Advantest
RESEARCH TOOLSreports

Advantest (ADTTF) Ownership - Who Owns Advantest?

33 Followers

Advantest (ADTTF) Ownership Overview

22.80%7.90%<0.01%13.50%55.80%
22.80% Insiders
7.90% Mutual Funds
<0.01% Other Institutional Investors
13.50% ETFs
55.80% Public Companies and
Individual Investors
The ownership structure of Advantest (ADTTF) stock is a mix of institutional, retail, and individual investors. Approximately 21.41% of the company’s stock is owned by Institutional Investors, 22.80% is owned by Insiders, and 55.80% is owned by Public Companies and Individual Investors.
The ownership structure of Advantest (ADTTF) stock is a mix of institutional, retail, and individual investors. Approximately 7.90% of the company’s stock is owned by Institutional Investors, 22.80% is owned by Insiders, and 13.50% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
Jul 14, 2026
Derek Stein
xxxxxxxxxxxxx
¥41059725
Jul 14, 2026
Derek Stein
xxxxxxxxxxxxx
¥3999404080
Jul 14, 2026
Derek Stein
xxxxxxxxxxxxx
¥150185100
Jul 14, 2026
Derek Stein
xxxxxxxxxxxxx
¥28448310276
Show More Insider Trading Activity >

Top Shareholders

Holder
# of Shares
Type
% Holding
Value
97,425,371Insider13.31%21,796,978,254
33,762,200Institution4.61%7,553,617,006
18,164,130Insider2.48%4,063,860,805
17,381,152Insider2.37%3,888,685,137
15,945,933Institution2.18%3,567,583,590
13,460,317Institution1.84%3,011,476,722
11,679,509Institution1.60%2,613,056,549
10,873,415Insider1.49%2,432,709,138
10,608,804Institution1.45%2,373,507,719
9,926,281Insider1.36%2,220,806,848

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
10,608,804Institution1.45%2,373,507,719
7,013,884Institution0.96%1,569,216,267
6,945,162Institution0.95%1,553,841,094
6,930,200Institution0.95%1,550,493,646
3,122,596Institution0.43%698,618,403
3,083,225Institution0.42%689,809,929
3,058,416Institution0.42%684,259,412
2,282,649Institution0.31%510,697,061
1,672,600Institution0.23%374,210,798
1,660,674Institution0.23%371,542,594

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
Ossiam
99,700Institution0.01%3,218,316,000
Ossiam
99,700Institution0.01%3,218,316,000
Xtrackers
6,267Institution<0.01%1,301,668
Amundi
26Institution<0.01%2,884

FAQ

Who Owns Advantest Corp. (ADTTF)?
According to the latest TipRanks data, approximately <0.01% of the company's stock is held by institutional investors, 22.80% is held by insiders, and 55.80% is held by retail investors.
    What percentage of Advantest Corp. (ADTTF) stock is held by institutional investors?
    According to the latest TipRanks data, approximately <0.01% of Advantest Corp. (ADTTF) stock is held by institutional investors.
      What percentage of Advantest Corp. (ADTTF) stock is held by retail investors?
      According to the latest TipRanks data, approximately 55.80% of Advantest Corp. (ADTTF) stock is held by retail investors.
        Who owns the most shares of Advantest Corp. (ADTTF)?
        Shoichi Ogoshi owns the most shares of Advantest Corp. (ADTTF).
          What is the significance of the ownership structure for a publicly traded company?
          The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.