[SCHEDULE 13D/A] GDS Holdings Limited ADS SEC Filing

Rhea-AI Filing Summary

Amendment No. 16 to Schedule 13D reports that Temasek-related reporting persons (STT, STT Communications, STT Garnet and Temasek) are deemed to beneficially own 445,288,484 Class A ordinary shares of GDS Holdings Limited, including 16,000,000 Class A shares issuable upon conversion of 0.25% Convertible Senior Notes due 2029, representing approximately 28.7% of outstanding Class A shares as of September 10, 2025.

The filing discloses that on September 10, 2025 STT Garnet sold 48,000,000 Class A Shares in the form of ADSs at $32.20 per ADS under Rule 144, while continuing to beneficially retain not less than 25% of the issuer's issued and outstanding share capital and maintaining existing governance rights. The filing also sets forth voting-power calculations showing the Class A stake equates to approximately 18.4% of aggregate voting power on 1:20 vote matters and approximately 27.9% on 1:1 vote matters, based on share counts disclosed in the issuer's 2025 proxy statement.

Positive

• Reporting persons retain a substantial ownership stake of 445,288,484 Class A Shares (~28.7% of Class A), preserving influence.
• Sale executed at a disclosed price of $32.20 per ADS for 48,000,000 ADSs provides transparent pricing information.
• Post-sale ownership remains at or above 25% of issued and outstanding share capital, and governance rights are unchanged.

Negative

• Large block sale of 48,000,000 ADSs could indicate portfolio rebalancing that temporarily increases public float and potential supply pressure.
• Beneficial ownership calculation includes convertible-note shares (16,000,000), representing potential future dilution if converted.

Insights

Corporate Governance Expert

TL;DR: Large shareholder sold 48M ADSs at $32.20 but retains significant stake and governance rights.

The filing documents a sizeable block sale by STT Garnet while preserving a substantial ownership position aggregated across affiliated entities. Beneficial ownership of 445,288,484 Class A Shares, including convertible-note-linked shares, represents a material minority stake in Class A equity and a meaningful portion of voting power under both weighted and one-share-one-vote scenarios. The 180-day broker restrictions related to further disposals are customary lock arrangements following an offloading and may limit near-term dilution or market selling pressure from these holders. Disclosure is specific and consistent with Rule 13d-3 reporting obligations.

M&A / Investor Relations Analyst

TL;DR: The transaction monetizes part of the position while governance influence remains intact.

The sale of 48,000,000 ADSs at $32.20 per ADS realizes cash value for the reporting group but, per the filing, does not reduce their governance rights under the issuer's articles. The inclusion of 16,000,000 shares issuable on conversion of convertible notes in the beneficial ownership count is important for understanding potential future dilution. The filing also clarifies that directors and officers of the reporting persons hold less than 1% of the issuer directly, which limits potential insider alignment issues. Overall, this is a material portfolio-management trade rather than a change in control attempt.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 16)

GDS Holdings Limited

(Name of Issuer)

Class A Ordinary Shares, par value $0.00005 per share

(Title of Class of Securities)

36165L108

(CUSIP Number)

Chan Jen Keet, c/o Singapore
Technologies Telemedia Pte. Ltd., 1 Temasek Avenue #33-01, Millenia Tower
Singapore, U0, 039192
(65) 6723 8730

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

09/10/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 36165L108

1

Name of reporting person

Singapore Technologies Telemedia Pte Ltd

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 445,288,484.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 445,288,484.00

11

Aggregate amount beneficially owned by each reporting person

445,288,484.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

28.7 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

The number of shares beneficially owned (i) includes 16,000,000 Class A ordinary shares, par value $0.00005 per share ("Class A Shares") of GDS Holdings Limited (the "Issuer") issuable upon conversion of the 0.25% Convertible Senior Notes due 2029 and (ii) assumes the completion of the transactions described in Item 5(c) hereto (the "September 2025 Secondary Sales"). Percentages are based on 1,536,506,711 Class A Shares outstanding as of May 31, 2025, comprising 1,607,430,567 Class A Shares outstanding, less 70,923,856 Class A Shares represented by the American Depositary Shares ("ADS") held by JPMorgan Chase Bank, N.A., as depositary, which are reserved for future delivery upon exercise or vesting of share awards granted under the Issuer's share incentive plans, as set forth in the proxy statement included in the Issuer's current report on Form 6-K furnished to the Securities and Exchange Commission (the "Commission") on June 4, 2025 (the "2025 Proxy Statement"). 43,590,336 Class B ordinary shares ("Class B Shares") were disclosed as outstanding as of May 31, 2025 in the 2025 Proxy Statement. On that basis, and assuming the completion of the September 2025 Secondary Sales, with respect to (i) the election of a simple majority of the Issuer's directors and (ii) any change to the Issuer's articles of association that would adversely affect the rights of the holders of Class B Shares, at general meetings of shareholders, each Class A Share is entitled to one vote per share, and each Class B Share is entitled to 20 votes per share, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 18.4% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:20 basis. With respect to any other matters at general meetings of shareholders, each Class A Share is entitled to one vote, and each Class B Share is entitled to one vote, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 27.9% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:1 basis.

SCHEDULE 13D

CUSIP No. 36165L108

1

Name of reporting person

STT Communications Ltd

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC, AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 445,288,484.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 445,288,484.00

11

Aggregate amount beneficially owned by each reporting person

445,288,484.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

28.7 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

The number of shares beneficially owned (i) includes 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029 and (ii) assumes the completion of the September 2025 Secondary Sales. Percentages are based on 1,536,506,711 Class A Shares outstanding as of May 31, 2025, comprising 1,607,430,567 Class A Shares outstanding, less 70,923,856 Class A Shares represented by ADS held by JPMorgan Chase Bank, N.A., as depositary, which are reserved for future delivery upon exercise or vesting of share awards granted under the Issuer's share incentive plans, as set forth in the 2025 Proxy Statement. 43,590,336 Class B Shares were disclosed as outstanding as of May 31, 2025 in the 2025 Proxy Statement. On that basis, and assuming the completion of the September 2025 Secondary Sales, with respect to (i) the election of a simple majority of the Issuer's directors and (ii) any change to the Issuer's articles of association that would adversely affect the rights of the holders of Class B Shares, at general meetings of shareholders, each Class A Share is entitled to one vote per share, and each Class B Share is entitled to 20 votes per share, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 18.4% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:20 basis. With respect to any other matters at general meetings of shareholders, each Class A Share is entitled to one vote, and each Class B Share is entitled to one vote, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 27.9% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:1 basis.

SCHEDULE 13D

CUSIP No. 36165L108

1

Name of reporting person

STT Garnet Pte. Ltd.

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 445,288,484.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 445,288,484.00

11

Aggregate amount beneficially owned by each reporting person

445,288,484.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

28.7 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

The number of shares beneficially owned (i) includes 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029 and (ii) assumes the completion of the September 2025 Secondary Sales. Percentages are based on 1,536,506,711 Class A Shares outstanding as of May 31, 2025, comprising 1,607,430,567 Class A Shares outstanding, less 70,923,856 Class A Shares represented by ADS held by JPMorgan Chase Bank, N.A., as depositary, which are reserved for future delivery upon exercise or vesting of share awards granted under the Issuer's share incentive plans, as set forth in the 2025 Proxy Statement. 43,590,336 Class B Shares were disclosed as outstanding as of May 31, 2025 in the 2025 Proxy Statement. On that basis, and assuming the completion of the September 2025 Secondary Sales, with respect to (i) the election of a simple majority of the Issuer's directors and (ii) any change to the Issuer's articles of association that would adversely affect the rights of the holders of Class B Shares, at general meetings of shareholders, each Class A Share is entitled to one vote per share, and each Class B Share is entitled to 20 votes per share, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 18.4% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:20 basis. With respect to any other matters at general meetings of shareholders, each Class A Share is entitled to one vote, and each Class B Share is entitled to one vote, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 27.9% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:1 basis.

SCHEDULE 13D

CUSIP No. 36165L108

1

Name of reporting person

Temasek Holdings (Private) Limited

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 445,288,484.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 445,288,484.00

11

Aggregate amount beneficially owned by each reporting person

445,288,484.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

28.7 %

14

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person:

The number of shares beneficially owned (i) includes 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029 and (ii) assumes the completion of the September 2025 Secondary Sales. Percentages are based on 1,536,506,711 Class A Shares outstanding as of May 31, 2025, comprising 1,607,430,567 Class A Shares outstanding, less 70,923,856 Class A Shares represented by ADS held by JPMorgan Chase Bank, N.A., as depositary, which are reserved for future delivery upon exercise or vesting of share awards granted under the Issuer's share incentive plans, as set forth in the 2025 Proxy Statement. 43,590,336 Class B Shares were disclosed as outstanding as of May 31, 2025 in the 2025 Proxy Statement. On that basis, and assuming the completion of the September 2025 Secondary Sales, with respect to (i) the election of a simple majority of the Issuer's directors and (ii) any change to the Issuer's articles of association that would adversely affect the rights of the holders of Class B Shares, at general meetings of shareholders, each Class A Share is entitled to one vote per share, and each Class B Share is entitled to 20 votes per share, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 18.4% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:20 basis. With respect to any other matters at general meetings of shareholders, each Class A Share is entitled to one vote, and each Class B Share is entitled to one vote, and accordingly, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 27.9% of the aggregate voting power on such matters with Class A Shares and Class B Shares voting on a 1:1 basis.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Class A Ordinary Shares, par value $0.00005 per share
(b)	Name of Issuer: GDS Holdings Limited
(c)	Address of Issuer's Principal Executive Offices: F4/F5, Building C, Sunland International, No. 999 Zhouhai Road, Pudong, Shanghai, CHINA , 200137.
Item 1 Comment: Explanatory Note: This Amendment No. 16 to Schedule 13D amends and supplements the Schedule 13D originally filed with the Commission on June 5, 2017 and amended on June 19, 2017, October 23, 2017, November 16, 2017, February 1, 2018, June 18, 2018, July 5, 2018, March 19, 2019, December 10, 2019, June 24, 2020, August 4, 2020, October 27, 2020, February 22, 2022, December 12, 2023, May 29, 2024 and February 19, 2025 (the "Statement"). Capitalized terms used but not defined herein have the meanings given to them in the Statement.
Item 2.	Identity and Background
(a)	The current Schedule A to the Statement is hereby amended and restated in its entirety by Schedule A hereto. Schedule A sets forth the information relating to the directors and executive officers of the Reporting Persons required by Item 2(a) to (f) and is incorporated into Item 2 by reference.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5(a) of the Statement is hereby amended and restated in its entirety as follows: STT, through its ownership of STTC and STT Garnet, is deemed for purposes of Rule 13d-3 under the Exchange Act to be the beneficial owner of 445,288,484 Class A Shares, including 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029, or approximately 28.7% of the outstanding Class A Shares, and to have shared power over the voting and disposition of such Class A Shares, as of September 10, 2025. STTC, through its ownership of STT Garnet, is deemed for purposes of Rule 13d-3 under the Exchange Act to be the beneficial owner of 445,288,484 Class A Shares, including 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029, or approximately 28.7% of the outstanding Class A Shares, and to have shared power over the voting and disposition of such Class A Shares, as of September 10, 2025. STT Garnet directly owns 445,288,484 Class A Shares (directly or in the form of ADSs), including 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029, or approximately 28.7% of the outstanding Class A Shares, and has shared power over the voting and disposition of such Class A Shares, as of September 10, 2025. Temasek, through its ownership of STT, STTC and STT Garnet, is deemed for purposes of Rule 13d-3 under the Exchange Act to be the beneficial owner of 445,288,484 Class A Shares, including 16,000,000 Class A Shares issuable upon conversion of the 0.25% Convertible Senior Notes due 2029, or approximately 28.7% of the outstanding Class A Shares, and to have shared power over the voting and disposition of such Class A Shares, as of September 10, 2025. 43,590,336 Class B Shares were disclosed as outstanding as of May 31, 2025 as set forth in the 2025 Proxy Statement. On that basis, the Class A Shares deemed to be beneficially owned by the Reporting Persons as of September 10, 2025 represented approximately 18.4% of the aggregate voting power on the matters with Class A Shares and Class B Shares voting on a 1:20 basis described herein and approximately 27.9% of the aggregate voting power on the matters with Class A Shares and Class B Shares voting on a 1:1 basis described herein. To the knowledge of the Reporting Persons, the directors and executive officers of the Reporting Persons listed in Schedule A hereto beneficially own in the aggregate less than 1% of the Issuer's outstanding Class A Shares (directly or in the form of ADSs) as of September 10, 2025. The number of shares beneficially owned assumes the completion of the September 2025 Secondary Sales. The foregoing percentages are based on 1,536,506,711 Class A Shares outstanding, comprising 1,607,430,567 Class A Shares outstanding as of May 31, 2025, less 70,923,856 Class A Shares represented by ADS held by JPMorgan Chase Bank, N.A., as depositary, which are reserved for future delivery upon exercise or vesting of share awards granted under the Issuer's share incentive plans, as set forth in the 2025 Proxy Statement.
(b)	Item 5(b) of the Statement is hereby amended and restated in its entirety as follows: The information set forth in Item 5(a) hereof is hereby incorporated by reference into this Item 5(b)
(c)	As part of STT's review of its investment portfolio on a continuing basis, on September 10, 2025, STT Garnet sold 48,000,000 Class A Shares (in the form of ADSs) at a price of $32.20 per ADS pursuant to Rule 144 under the Securities Act of 1933, as amended. Immediately following the foregoing sales, STT Garnet continues to beneficially retain and own Class A Shares representing not less than 25% of the Issuer's issued and outstanding share capital and there is no change in STT's existing governance rights as a result of the foregoing sales under the Issuer's articles of association. In connection with the foregoing sales, STT Garnet agreed with each broker executing the trades that, for a period of 180 days following the sales, it will not, and will ensure that none of its subsidiaries will, offer, issue, sell or otherwise dispose of (or announce an intention to do so) any Class A Shares or any securities convertible into or exchangeable for or carrying rights to acquire other shares of the Issuer, other than in any off-market transaction or sale to a strategic investor without the prior written consent of the brokers. Except for the foregoing, there have been no transactions by the Reporting Persons or, to the knowledge of the Reporting Persons, any director or executive officer of any of the Reporting Persons in the Class A Shares of the Issuer (directly or in the form of ADSs) during the past sixty days.
Item 7.	Material to be Filed as Exhibits.
	Exhibit 99.1 Joint Filing Agreement, dated February 19, 2025, among STT, STTC, STT Garnet and Temasek (incorporated by reference to Exhibit 99.1 of Amendment No. 15 to the Schedule 13D filed by the Reporting Persons on February 19, 2025

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Singapore Technologies Telemedia Pte Ltd

Signature:	/s/ Chan Jen Keet
Name/Title:	Chan Jen Keet, Company Secretary
Date:	09/10/2025

STT Communications Ltd

Signature:	/s/ Chan Jen Keet
Name/Title:	Chan Jen Keet, Company Secretary
Date:	09/10/2025

STT Garnet Pte. Ltd.

Signature:	/s/ Chan Jen Keet
Name/Title:	Chan Jen Keet, Company Secretary
Date:	09/10/2025

Temasek Holdings (Private) Limited

Signature:	/s/ Jason Norman Lee
Name/Title:	Jason Norman Lee, Authorised Signatory
Date:	09/10/2025

FAQ

How many GDS (GDS) Class A shares do the reporting persons beneficially own?

They beneficially own 445,288,484 Class A Shares, including 16,000,000 issuable upon conversion of convertible notes, representing ~28.7% of Class A.

What transaction did STT Garnet complete on September 10, 2025?

STT Garnet sold 48,000,000 ADSs at a price of $32.20 per ADS pursuant to Rule 144.

Did the sale change the reporting persons' governance rights in GDS?

According to the filing, there is no change in STT's existing governance rights under the issuer's articles of association following the sales.

What voting power do the reporting persons hold after the transactions?

Based on the filing and proxy statement figures, the Class A shares owned represent ~18.4% of aggregate voting power on 1:20 vote matters and ~27.9% on 1:1 vote matters.

Are there restrictions on further sales by STT Garnet after this transaction?

Yes. STT Garnet agreed with executing brokers that for 180 days it will not offer or sell Class A shares or related securities, except certain off-market transactions or sales to strategic investors with prior broker consent.