Beneficial Ownership Report · SCHEDULE 13G/A
DoubleDown Interactive Co., Ltd.
Beneficial Ownership Report
Structured filing — SCHEDULE 13G/A
primary_doc.xml
Amendment · This filing reports the amendment as submitted.
Subject company
- Company
- DoubleDown Interactive Co., Ltd.
- Company CIK
- 0001799567
- Street
- 13F, GANGNAM FINANCE CENTER
- Street (continued)
- 152, TEHERAN-RO GANGNAM-GU
- City
- SEOUL
- State / country code
- M5
- Postal code
- unknown
Statement details
- Amendment number
- 3
- Security class
- American Depositary Shares, each twenty (20) ADSs representing one (1) Common Share
- Event date
- 09/30/2026
- Rule designation
- Rule 13d-1(b)
Reporting person 1
- Name
- Boston Partners
- Citizenship / organization
- DE
- Reporting person type
- IA
- Aggregate amount owned
- 13,090.3
- Percent of class
- 0.53
- Sole voting power
- 13,090.3
- Shared voting power
- 0
- Sole dispositive power
- 13,090.3
- Shared dispositive power
- 0
- Aggregate excludes certain shares
- N
- Comments
- Boston Partners' amounts and percentages are stated in Common Shares. Per the issuer's Form 20-F for the fiscal year ended December 31, 2025, each twenty (20) American Depositary Shares ("ADSs") represent one (1) Common Share, and 2,477,672 Common Shares were outstanding as of December 31, 2025. As of 09/30/2026, Boston Partners held 261,806 ADSs / 20 = 13,090.30 Common Shares; 13,090.30 / 2,477,672 = 0.53%. This amendment also corrects prior filings, which stated holdings in ADSs and calculated the percentage by dividing ADSs by Common Shares outstanding. Corrected on a consistent basis: as of 03/31/2026, Boston Partners held 133,719 ADSs / 20 = 6,685.95 Common Shares; 6,685.95 / 2,477,672 = 0.27% (previously reported as 5.40%); as of 06/30/2026, Boston Partners held 165,051 ADSs / 20 = 8,252.55 Common Shares; 8,252.55 / 2,477,672 = 0.33% (previously reported as 6.66%).
Item 1
Issuer
DoubleDown Interactive Co., Ltd.
Principal executive office address
13F, GANGNAM FINANCE CENTER, 152, TEHERAN-RO GANGNAM-GU, SEOUL, KOREA, REPUBLIC OF unknown
Item 2
Citizenship
Boston Partners - DELAWARE
Filing person
Boston Partners
Principal business or residence address
ONE BEACON STREET 30TH FLOOR BOSTON, Massachusetts 02108
Item 3
Not applicable indication
N
Type of filing person
IA
Item 4
Percent of class
0.53
Amount beneficially owned
13,090.3
Sole voting power
Boston Partners - 13,090.3
Shared voting power
Boston Partners - 0
Sole dispositive power
Boston Partners - 13,090.3
Shared dispositive power
Boston Partners - 0
Item 5
Not applicable indication
N
Ownership of 5% or less
Y
Item 6
Not applicable indication
Y
Item 7
Not applicable indication
Y
Item 8
Not applicable indication
Y
Item 9
Not applicable indication
Y
Item 10
Not applicable indication
N
Certifications
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
Signature 1
- Reporting person
- Boston Partners
- Signed
- /s/ Ali Farooqi
- Title
- Ali Farooqi / Senior Compliance Manager
- Date
- 11/06/2026
Company context
DoubleDown Interactive Co., Ltd. is a leading developer and publisher of digital games on mobile and web-based platforms. We are the creators of multi-format interactive entertainment experiences for casual players, bringing authentic Vegas entertainment to players around the world through an online social casino experience. The Company’s flagship social casino title, DoubleDown Casino, has been a fan-favorite game on leading social and mobile platforms for years, entertaining millions of players worldwide with a lineup of classic and modern games. Through its subsidiary WHOW Games GmbH, headquartered in Hamburg, Germany, DoubleDown offers exciting social casino experiences to European players. In addition, the Company’s subsidiary, SuprNation, operates three real-money iGaming sites in Western Europe.