Mubadala (GFS) group holds 77.05% of GLOBALFOUNDRIES shares in 13G/A

Rhea-AI Filing Summary

GLOBALFOUNDRIES Inc. ownership disclosure: Amendment No. 2 to a Schedule 13G/A reports that Mubadala-related entities collectively hold 423,042,773 ordinary shares, representing 77.05% of the 549,072,416 Ordinary Shares issued and outstanding as of March 13, 2026. The filing breaks ownership across related reporting persons: Mubadala Investment Company PJSC, Mamoura Diversified Global Holding PJSC, and Mubadala Technology Investments LLC each report 423,042,773 shared voting and dispositive power. Mubadala Technology Investment Company reports 308,740,704 shares (56.23%) and MTI International Investment Company LLC reports 114,302,069 shares (20.82%). The filing also states that Mubadala Technology Investment Company disposed of 1,469,017 Ordinary Shares after March 31, 2026 and prior to this amendment.

Insights

Corporate Governance Analyst

Mubadala group discloses concentrated shared ownership of GLOBALFOUNDRIES.

The Schedule 13G/A Amendment identifies 423,042,773 shares tied to Mubadala-related reporting persons and cites the issuer's statement that 549,072,416 Ordinary Shares were outstanding as of March 13, 2026. This establishes the group's >50% position via shared voting/dispositive power.

Key dependencies include the issuer's prospectus supplement cited for the outstanding share count and the post-March 31, 2026 disposal of 1,469,017 shares by Mubadala Technology Investment Company, which slightly alters raw counts; subsequent filings will show any further movement.

Securities Counsel

Disclosure aligns with Rule 13d-1 reporting for passive/beneficial ownership aggregation.

The joint filing and Exhibit 1 (Agreement of Joint Filing) document the reporting group and allocate shared voting and dispositive powers. The cover-page comments reference a prospectus supplement filed under Rule 424(b)(7) as the source of the 549,072,416 outstanding shares figure.

Filing notes a post-period disposition of 1,469,017 shares; legal watchers should confirm whether further amendments are required if additional movements occur.

Key Figures

Shares held by Mubadala group: 423,042,773 shares Outstanding Ordinary Shares: 549,072,416 shares Percentage ownership: 77.05% +3 more

6 metrics

Shares held by Mubadala group 423,042,773 shares reported shared voting/dispositive power across Mubadala entities

Outstanding Ordinary Shares 549,072,416 shares issued and outstanding as of March 13, 2026 per prospectus supplement

Percentage ownership 77.05% Mubadala-related entities' share of outstanding Ordinary Shares

Mubadala Technology Investment Co. holdings 308,740,704 shares reported on cover page, 56.23% of outstanding shares as of March 13, 2026

MTI International Investment Co. holdings 114,302,069 shares reported on cover page, 20.82% of outstanding shares as of March 13, 2026

Post-period disposition 1,469,017 shares disposed by Mubadala Technology Investment Company after March 31, 2026 and before this amendment

Key Terms

shared dispositive power, Schedule 13G/A, Rule 424(b)(7), Agreement of Joint Filing

4 terms

shared dispositive power regulatory

"Shared Dispositive Power 423,042,773.00"

Schedule 13G/A regulatory

"Amendment No. 2 to Schedule 13G/A"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Rule 424(b)(7) regulatory

"prospectus supplement filed pursuant to Rule 424(b)(7)"

Agreement of Joint Filing regulatory

"Exhibit 1 Agreement of Joint Filing as required by Rule 13d-1(k)(1)"

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

GLOBALFOUNDRIES Inc.

(Name of Issuer)

Ordinary Shares, $0.02 par value per share

(Title of Class of Securities)

G39387108

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G39387108

1

Names of Reporting Persons

Mubadala Investment Company PJSC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED ARAB EMIRATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 423,042,773.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 423,042,773.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

423,042,773.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

77.05 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: The information set forth herein regarding percentages of beneficial ownership is based upon information obtained from GLOBALFOUNDRIES Inc. (the "Issuer") regarding the 549,072,416 ordinary shares, $0.02 par value per share ("Ordinary Shares") issued and outstanding as of March 13, 2026 following the completion of certain transactions reported in the Issuer's prospectus supplement filed pursuant to Rule 424(b)(7) with the Securities and Exchange Commission (the "Commission") on March 12, 2026.

SCHEDULE 13G

CUSIP Number(s): G39387108

1

Names of Reporting Persons

Mamoura Diversified Global Holding PJSC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED ARAB EMIRATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 423,042,773.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 423,042,773.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

423,042,773.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

77.05 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: The information set forth herein regarding percentages of beneficial ownership is based upon information obtained from the Issuer regarding the 549,072,416 Ordinary Shares issued and outstanding as of March 13, 2026 following the completion of certain transactions reported in the Issuer's prospectus supplement filed pursuant to Rule 424(b)(7) with the Commission on March 12, 2026.

SCHEDULE 13G

CUSIP Number(s): G39387108

1

Names of Reporting Persons

Mubadala Technology Investments (Mubadala Technology) LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED ARAB EMIRATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 423,042,773.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 423,042,773.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

423,042,773.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

77.05 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: The information set forth herein regarding percentages of beneficial ownership is based upon information obtained from the Issuer regarding the 549,072,416 Ordinary Shares issued and outstanding as of March 13, 2026 following the completion of certain transactions reported in the Issuer's prospectus supplement filed pursuant to Rule 424(b)(7) with the Commission on March 12, 2026.

SCHEDULE 13G

CUSIP Number(s): G39387108

1

Names of Reporting Persons

Mubadala Technology Investment Company

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 308,740,704.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 308,740,704.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

308,740,704.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

56.23 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: The information set forth herein regarding percentages of beneficial ownership is based upon information obtained from the Issuer regarding the 549,072,416 Ordinary Shares issued and outstanding as of March 13, 2026 following the completion of certain transactions reported in the Issuer's prospectus supplement filed pursuant to Rule 424(b)(7) with the Commission on March 12, 2026.

SCHEDULE 13G

CUSIP Number(s): G39387108

1

Names of Reporting Persons

MTI International Investment Company LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED ARAB EMIRATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 114,302,069.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 114,302,069.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

114,302,069.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

20.82 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: The information set forth herein regarding percentages of beneficial ownership is based upon information obtained from the Issuer regarding the 549,072,416 Ordinary Shares issued and outstanding as of March 13, 2026 following the completion of certain transactions reported in the Issuer's prospectus supplement filed pursuant to Rule 424(b)(7) with the Commission on March 12, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GLOBALFOUNDRIES Inc.
(b)	Address of issuer's principal executive offices: 400 Stonebreak Road Extension, Malta, New York 12020
Item 2.
(a)	Name of person filing: (i) Mubadala Investment Company PJSC (ii) Mamoura Diversified Global Holding PJSC (iii) Mubadala Technology Investments (Mubadala Technology) LLC (iv) Mubadala Technology Investment Company (v) MTI International Investment Company LLC
(b)	Address or principal business office or, if none, residence: (i) Mamoura A Building Abu Dhabi, 45005 United Arab Emirates (ii) Mamoura A Building Abu Dhabi, 45005 United Arab Emirates (iii) Mamoura A Building Abu Dhabi, 45005 United Arab Emirates (iv) Maples Corporate Services Limited, PO Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands (v) Mamoura A Building Abu Dhabi, 45005 United Arab Emirates
(c)	Citizenship: (i) Please refer to Item 4 on each cover page for each Reporting Person.
(d)	Title of class of securities: Ordinary Shares, $0.02 par value per share
(e)	CUSIP No.: G39387108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Information with respect to the Reporting Persons' ownership as of March 31, 2026 is incorporated by reference to item (9) of the cover page for each Reporting Person. Subsequent to March 31, 2026, but prior to the filing of this Schedule 13G/A, Mubadala Technology Investment Company disposed of 1,469,017 Ordinary Shares of the Issuer (corresponding to approximately 0.27% of the outstanding Ordinary Shares as of the filing date).
(b)	Percent of class: See responses to Item 11 on each cover page.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See responses to Item 5 on each cover page.
	(ii) Shared power to vote or to direct the vote: See responses to Item 6 on each cover page.
	(iii) Sole power to dispose or to direct the disposition of: See responses to Item 7 on each cover page.
	(iv) Shared power to dispose or to direct the disposition of: See responses to Item 8 on each cover page.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

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.

Mubadala Investment Company PJSC

Signature:	/s/ Hernan Daniel Pellegrini
Name/Title:	Hernan Daniel Pellegrini / Authorized Signatory
Date:	04/27/2026

Mamoura Diversified Global Holding PJSC

Signature:	/s/ Hernan Daniel Pellegrini
Name/Title:	Hernan Daniel Pellegrini / Authorized Signatory
Date:	04/27/2026

Mubadala Technology Investments (Mubadala Technology) LLC

Signature:	/s/ Hernan Daniel Pellegrini
Name/Title:	Hernan Daniel Pellegrini / Authorized Signatory
Date:	04/27/2026

Mubadala Technology Investment Company

Signature:	/s/ Hernan Daniel Pellegrini
Name/Title:	Hernan Daniel Pellegrini / Authorized Signatory
Date:	04/27/2026

MTI International Investment Company LLC

Signature:	/s/ Hernan Daniel Pellegrini
Name/Title:	Hernan Daniel Pellegrini / Authorized Signatory
Date:	04/27/2026

Exhibit Information

Exhibit Index Exhibit 1 Agreement of Joint Filing as required by Rule 13d-1(k)(1) under the Act.* * Incorporated by reference to the Agreement of Joint Filing by Mubadala Investment Company PJSC, Mamoura Diversified Global Holding PJSC, Mubadala Technology Investments LLC, Mubadala Technology Investment Company and MTI International Investment Company LLC dated February 11, 2022, which was previously filed with the Commission as Exhibit to Schedule 13G filed by Mubadala Investment Company PJSC, Mamoura Diversified Global Holding PJSC, Mubadala Technology Investments LLC, Mubadala Technology Investment Company and MTI International Investment Company LLC on February 11, 2022 with respect to the shares of GLOBALFOUNDRIES Inc.

FAQ

What stake does Mubadala report in GLOBALFOUNDRIES (GFS)?

Mubadala-related entities report shared ownership of 423,042,773 shares, equal to 77.05% of the issuer's 549,072,416 outstanding Ordinary Shares as of March 13, 2026. This figure is drawn from the filing's cover-page disclosures.

Which Mubadala entities are named on the Schedule 13G/A for GFS?

The filing lists Mubadala Investment Company PJSC, Mamoura Diversified Global Holding PJSC, Mubadala Technology Investments LLC, Mubadala Technology Investment Company, and MTI International Investment Company LLC. Their addresses and citizenships are provided on the cover pages.

How many GLOBALFOUNDRIES shares were outstanding per the filing?

The filing cites the issuer's information that 549,072,416 Ordinary Shares were issued and outstanding as of March 13, 2026, per a prospectus supplement filed under Rule 424(b)(7) on March 12, 2026.

Did any Mubadala entity change its holdings after March 31, 2026?

Yes. The amendment states that Mubadala Technology Investment Company disposed of 1,469,017 Ordinary Shares after March 31, 2026 and before the filing of this amendment, reducing its reported holdings accordingly.

Does the filing show sole voting or dispositive power for Mubadala entities?

No. The cover-page entries report 0 sole voting power and list the disclosed positions as shared voting and shared dispositive power for the reported Mubadala entities, consistent with a joint reporting arrangement.