SCHEDULE 13G

CUSIP Number(s):

878972108

Names of Reporting Persons

Aberdeen Group plc

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 484,887.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 484,887.00

Aggregate Amount Beneficially Owned by Each Reporting Person

484,887.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

2.48 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

878972108

Names of Reporting Persons

abrdn Inc

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

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 484,887.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 484,887.00

Aggregate Amount Beneficially Owned by Each Reporting Person

484,887.00

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

Checkbox not checked

Percent of class represented by amount in row (9)

2.48 %

Type of Reporting Person (See Instructions)

CO, IA

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Tectonic Therapeutic, Inc.

(b)

Address of issuer's principal executive offices:

490 ARSENAL WAY, SUITE 210, WATERTOWN, MASSACHUSETTS 02472

Item 2.

(a)

Name of person filing:

Aberdeen Group plc abrdn Inc

(b)

Address or principal business office or, if none, residence:

1 George Street Edinburgh, United Kingdom EH2 2LL abrdn Inc 1900 Market Street Suite 200. Philadelphia PA 19103

(c)

Citizenship:

Aberdeen Group plc - UNITED KINGDOM abrdn Inc - UNITED STATES

(d)

Title of class of securities:

Common Stock, $0.0001 par value per share

(e)

CUSIP No.:

878972108

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:

484,887

(b)

Percent of class:

2.48 %

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

Aberdeen Group plc - 0 abrdn Inc - 0

(ii) Shared power to vote or to direct the vote:

Aberdeen Group plc - 484,887 abrdn Inc - 484,887

(iii) Sole power to dispose or to direct the disposition of:

Aberdeen Group plc - 0 abrdn Inc - 0

(iv) Shared power to dispose or to direct the disposition of:

Aberdeen Group plc - 484,887 abrdn Inc - 484,887

Item 5.

Ownership of 5 Percent or Less of a Class.

Ownership of 5 percent or less of a class

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.

See Exhibit

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 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

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.

Aberdeen Group plc

Signature:	R.Chaudhry
Name/Title:	Romiza Chaudhry / Major Shareholding Reporting Analyst
Date:	10/29/2026

abrdn Inc

Signature:	R.Chaudhry
Name/Title:	Romiza Chaudhry / Major Shareholding Reporting Analyst
Date:	10/29/2026

Exhibit Information

Aberdeen Group plc abrdn Holdings Limited abrdn Inc. Aberdeen Group plc is the parent company. abrdn Holdings Limited is the intermediate holding company for abrdn Inc. abrdn Inc. beneficially owns on behalf of our underlying clients less than 5% of the outstanding shares of the security class being reported on this Schedule 13G.