[SCHEDULE 13G] Assembly Biosciences, Inc SEC Filing

Rhea-AI Filing Summary

Alexander Schornstein amended a prior Schedule 13D to report his beneficial ownership in Assembly Biosciences, Inc. He beneficially owns 728,113 shares of common stock, representing 4.68% of the outstanding class based on 15,560,009 shares reported in the registraton statement. The total includes 607,089 shares held directly by Mr. Schornstein and 92,024 shares held by Camino Capital GmbH, of which he is the sole beneficial owner with sole voting and dispositive power. The filing states Mr. Schornstein no longer owns at least 5% of the company and therefore is no longer required to file further Schedule 13D amendments. The statement affirms these holdings and the classification of the filing under Rule 13d-1.

Positive

• Clear disclosure of total beneficial ownership (728,113 shares) and the breakdown between direct and entity-held shares
• Ownership falls below 5% (4.68%), relieving the reporting person of further Schedule 13D amendment obligations as stated

Negative

• None.

Insights

Securities Analyst

TL;DR: Beneficial ownership now 4.68% (728,113 shares); filer amended prior Schedule 13D and drops below the 5% reporting threshold.

The amendment clarifies the ownership split between personal holdings and a controlled entity and quantifies sole voting and dispositive power over all reported shares. Using the registraton-stated share base of 15,560,009, the 4.68% figure is explicit and verifiable from the filing. This change alters the filers reporting status under the Exchange Act but does not, on its face, disclose additional transactions, financing, or strategic arrangements.

Corporate Governance Expert

TL;DR: Disclosure maintains transparency while signalling the reporting person no longer meets the 5% ownership threshold; filing obligations change.

The filing is procedural and focuses on ownership disclosure and regulatory classification. It identifies Camino Capital GmbH as an entity through which 92,024 shares are held and confirms sole control by Mr. Schornstein over the aggregate 728,113 shares. From a governance perspective, the statement documents a reduced large-holder stake below the 5% benchmark, which changes ongoing amendment requirements but does not by itself indicate governance action or control intent.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

ASSEMBLY BIOSCIENCES, INC.

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

045396207

(CUSIP Number)

08/11/2025

(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)

SCHEDULE 13G

CUSIP No. 045396207

1

Names of Reporting Persons

Alexander Schornstein

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

GERMANY

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 728,113.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 728,113.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

728,113.00

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)

4.68 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: ASSEMBLY BIOSCIENCES, INC.
(b)	Address of issuer's principal executive offices: Two Tower Place, 7th Floor, South San Francisco, California 94080
Item 2.
(a)	Name of person filing: Alexander Schornstein
(b)	Address or principal business office or, if none, residence: Kaiser-Friedrich-Allee 2, 52074 Aachen Germany 004915142314669
(c)	Citizenship: Germany
(d)	Title of class of securities: Common Stock, par value $0.001
(e)	CUSIP No.: 045396207
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: 728,113 (1) (1) Includes 607,089 shares of Common Stock held by Alexander Schornstein and 92,024 shares of Common Stock held by Camino Capital GmbH, in which Alexander Schornstein is the sole beneficial owner and has sole voting power. This Schedule 13G serves as an Amendment to the prior Schedule 13D filed with the U.S. Securities and Exchange Commission on December 23, 2024 by Alexander Schornstein under Rule 13d-2(b). The Reporting Person, as of the day of this filing, no longer owns at least 5% of the Company's outstanding shares, and thus no longer a beneficial owner. The Reporting Person, as of today, is no longer required to file additional amendments to Schedule 13D pursuant to Rule 13d-2(d).
(b)	Percent of class: 4.68% (2) (2) Based upon 15,560,009 shares of common stock of the Issuer issued and outstanding as stated in the Company's registration statement on Form S-3 filed with the United States Securities and Exchange Commission on March 20, 2025, as amended by the registration adding securities to prior Form S-3 on Form S-3MEF filed on August 8, 2025. The offering contemplated in the registration statements was closed on August 11, 2025.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 728,113
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 728,113
	(iv) Shared power to dispose or to direct the disposition of: 0
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.
	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:

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.

Alexander Schornstein

Signature:	/s/ Alexander Schornstein
Name/Title:	Alexander Schornstein
Date:	08/12/2025

FAQ

Who filed the Schedule 13G for ASMB?

Alexander Schornstein filed the amendment and is identified as a German citizen.

How many Assembly Biosciences (ASMB) shares does he beneficially own?

728,113 shares in total, comprising 607,089 held personally and 92,024 held by Camino Capital GmbH.

What percentage of ASMB does this ownership represent?

4.68% based on a stated share base of 15,560,009 shares outstanding in the registraton statement.

Does Mr. Schornstein still qualify as a 5% beneficial owner of ASMB?

No; the filing explicitly states he no longer owns at least 5% and is no longer required to file additional Schedule 13D amendments.

What voting and dispositive powers are reported?

Sole voting power and sole dispositive power for all 728,113 shares; no shared voting or dispositive power is reported.