Iambic Therapeutics: Qatar reports 5.8% passive stake

Q Healthcare Holding LLC is identified as the wholly owned subsidiary that acquired the reported common-stock position.

Available on EDGAR 11/09/2026 - 10:14 AM EST Accepted by SEC EDGAR 11/09/2026 - 10:14 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Iambic Therapeutics, Inc. is the issuer whose common stock Qatar Investment Authority reports beneficially owning: 2,804,360 shares, or 5.8% of the class. Qatar Investment Authority reports sole voting and dispositive power over all 2,804,360 shares. Its wholly owned subsidiary, Q Healthcare Holding LLC, acquired the security; the event date is October 15, 2026.

Key Figures

Beneficial ownership: 2,804,360 shares Class ownership: 5.8% Sole voting power: 2,804,360 shares +1 more

4 metrics

Beneficial ownership 2,804,360 shares Qatar Investment Authority

Class ownership 5.8% Qatar Investment Authority

Sole voting power 2,804,360 shares Qatar Investment Authority

Sole dispositive power 2,804,360 shares Qatar Investment Authority

Key Terms

beneficially owned, sole voting power, sole dispositive power

3 terms

beneficially owned financial

"Amount beneficially owned: 2,804,360"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole voting power financial

"Sole Voting Power 2,804,360.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

sole dispositive power financial

"Sole Dispositive Power 2,804,360.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many IAM shares does Qatar Investment Authority own?

Qatar Investment Authority beneficially owns 2,804,360 shares of Iambic Therapeutics common stock, equal to 5.8% of the class. It reports sole voting and dispositive power over all 2,804,360 shares. Its wholly owned subsidiary, Q Healthcare Holding LLC, acquired the security.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Iambic Therapeutics, Inc.

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

45076A101

(CUSIP Number)

10/15/2026

(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): 45076A101

1

Names of Reporting Persons

Qatar Investment Authority

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

QATAR

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,804,360.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,804,360.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,804,360.00

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)

5.8 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Iambic Therapeutics, Inc.
(b)	Address of issuer's principal executive offices: 5627 OBERLIN DRIVE, SUITE 120, SAN DIEGO, CALIFORNIA, 92121
Item 2.
(a)	Name of person filing: Qatar Investment Authority
(b)	Address or principal business office or, if none, residence: Ooredoo Tower (Building 14), Al Dafna Street (Street 801), Al Dafna (Zone 61), Doha, Qatar
(c)	Citizenship: Qatar
(d)	Title of class of securities: Common Stock, par value $0.001
(e)	CUSIP Number(s): 45076A101
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: 2,804,360
(b)	Percent of class: 5.8 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,804,360
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2,804,360
	(iv) Shared power to dispose or to direct the disposition of: 0
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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Q Healthcare Holding LLC is the wholly owned subsidiary of Qatar Investment Authority that acquired the security.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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

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.

Qatar Investment Authority

Signature:	Mohammed Fahad Al Khulaifi
Name/Title:	Head of Compliance and Governance
Date:	11/09/2026