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Advantest Corp

ATEYY
Exchange
OTC
Industry
Semiconductors & Related Devices
SEC CIK
0001158838

No open-market purchases or sales by Advantest Corp insiders were filed in the last 90 days; 18 institutions reported holding it in 13F filings for Q2 2026, worth $17.3M in total; no superinvestor holds it.

Other share classesADTTF

13F holders, Q4 2023

Institutional positions in Advantest Corp as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
7
−1 vs. Q3 2023
Shares held
75.9K
−48.5K (−39.0%) vs. Q3 2023Converted for a 4-for-1 split
Total value
$2.58M
+$213.2K (+9.0%) vs. Q3 2023
New holders
2
3 more added
Sold out
3
1 more reduced

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ATEYY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 7 institutions
Q1 2021: 5 institutionsQ2 2021: 4 institutionsQ3 2021: 3 institutionsQ4 2021: 3 institutionsQ1 2022: 5 institutionsQ2 2022: 5 institutionsQ3 2022: 3 institutionsQ4 2022: 3 institutionsQ1 2023: 6 institutionsQ2 2023: 7 institutionsQ3 2023: 8 institutionsQ4 2023: 7 institutionsQ1 2024: 8 institutionsQ2 2024: 7 institutionsQ3 2024: 7 institutionsQ4 2024: 8 institutionsQ1 2025: 7 institutionsQ2 2025: 14 institutionsQ3 2025: 11 institutionsQ4 2025: 13 institutionsQ1 2026: 16 institutionsQ2 2026: 18 institutions
Value heldQ4 2023: $2.58M
Q1 2021: $6.94MQ2 2021: $399.0KQ3 2021: $8.00KQ4 2021: $309.0KQ1 2022: $272.0KQ2 2022: $21.0KQ3 2022: $3.00KQ4 2022: $249.6KQ1 2023: $2.22MQ2 2023: $2.30MQ3 2023: $2.37MQ4 2023: $2.58MQ1 2024: $2.66MQ2 2024: $1.24MQ3 2024: $1.25MQ4 2024: $2.02MQ1 2025: $1.24MQ2 2025: $8.27MQ3 2025: $9.78MQ4 2025: $11.1MQ1 2026: $10.9MQ2 2026: $17.3M
Institutions holding ATEYY and their total value by quarter
QuarterHoldersValue
Q2 202618$17.3M
Q1 202616$10.9M
Q4 202513$11.1M
Q3 202511$9.78M
Q2 202514$8.27M
Q1 20257$1.24M
Q4 20248$2.02M
Q3 20247$1.25M
Q2 20247$1.24M
Q1 20248$2.66M
Q4 20237$2.58M
Q3 20238$2.37M
Q2 20237$2.30M
Q1 20236$2.22M
Q4 20223$249.6K
Q3 20223$3.00K
Q2 20225$21.0K
Q1 20225$272.0K
Q4 20213$309.0K
Q3 20213$8.00K
Q2 20214$399.0K
Q1 20215$6.94M

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Advantest Corp; share changes are against Q3 2023.

Institutions holding ATEYY in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Ativo Capital Management LLC49,000$1.65M1.77%−400−0.8%ReducedConverted for a 4-for-1 split
Yousif Capital Management, LLC12,848$437.2K0.01%00.0%UnchangedConverted for a 4-for-1 split
Rhumbline Advisers6,348$214.2K0.00%+800+14.4%AddedConverted for a 4-for-1 split
GAMMA Investing LLC2,632$104.6K0.03%+2,632New
Huntington National Bank2,549$86.0K0.00%+2,549New
The PNC Financial Services Group, Inc.1,693$57.1K0.00%+413+32.3%AddedConverted for a 4-for-1 split
First Horizon Advisors, Inc.790$26.7K0.00%+46+6.2%AddedConverted for a 4-for-1 split
SYSTM Wealth Solutions LLC0$00.00%−53,184−100.0%Sold outConverted for a 4-for-1 split
Operose Advisors LLC0$00.00%−1,148−100.0%Sold outConverted for a 4-for-1 split
Russell Investments Group, Ltd.0$00.00%−248−100.0%Sold outConverted for a 4-for-1 split