Avalo Therapeutics (AVTX): Nantahala Capital discloses 3.54% ownership stake

Rhea-AI Filing Summary

Nantahala Capital Management, LLC, along with Wilmot B. Harkey and Daniel Mack, reports beneficial ownership of common stock of Avalo Therapeutics, Inc.

As of June 30, 2026, the reporting persons may be deemed to beneficially own 1,862,250 shares of Avalo Therapeutics common stock, representing 3.54% of the outstanding class. All reported shares are held by funds and separately managed accounts controlled by Nantahala, with the reporting persons having shared voting and dispositive power over these shares and no sole voting or dispositive power. Each of Harkey and Mack files as a control person in respect of shares beneficially owned by Nantahala, which is described as an investment adviser.

Key Figures

Beneficial ownership shares: 1,862,250 shares Percent of class: 3.54% Sole voting power: 0 shares +2 more

5 metrics

Beneficial ownership shares 1,862,250 shares Shares beneficially owned as of June 30, 2026 by Nantahala and related persons

Percent of class 3.54% Percentage of Avalo Therapeutics common stock beneficially owned as of June 30, 2026

Sole voting power 0 shares Sole power to vote or direct the vote for each reporting person

Shared voting power 1,862,250 shares Shared power to vote or direct the vote for each reporting person

Shared dispositive power 1,862,250 shares Shared power to dispose or direct disposition of shares for each reporting person

Key Terms

beneficial owner, shared voting power, shared dispositive power, control person, +1 more

5 terms

beneficial owner financial

"Nantahala may be deemed to be the beneficial owner of 1,862,250 Shares"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

shared voting power financial

"Shared Voting Power 1,862,250.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 1,862,250.00"

control person financial

"Each of Messrs. Harkey and Mack is filing this as a control person"

A control person is an individual or entity that can significantly influence a company’s decisions and direction through ownership, voting power, or contractual rights—think of them as the captain who can steer the ship. Investors care because a control person’s choices affect corporate strategy, board appointments, and transactions that can raise or lower a stock’s value, and they often carry additional legal responsibilities and disclosure requirements to protect other shareholders.

investment adviser financial

"Nantahala, an investment adviser as described in ss. 240.13d-1(b)(1)(ii)(E)"

An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.

FAQ

What stake in Avalo Therapeutics (AVTX) does Nantahala Capital report on this Schedule 13G/A?

Nantahala Capital and associated reporting persons may be deemed to beneficially own 1,862,250 shares of Avalo Therapeutics common stock, representing 3.54% of the outstanding class as of June 30, 2026.

Who are the reporting persons on this Avalo Therapeutics (AVTX) ownership filing?

The reporting persons are Nantahala Capital Management, LLC, Wilmot B. Harkey, and Daniel Mack. Harkey and Mack file as control persons in respect of shares beneficially owned by Nantahala, an investment adviser.

What voting power over Avalo Therapeutics (AVTX) shares do the reporting persons have?

As of June 30, 2026, the reporting persons have 0 shares with sole voting power and 1,862,250 shares with shared voting power. They similarly hold no sole dispositive power and shared dispositive power over the same shares.

Does Nantahala Capital own 5% or more of Avalo Therapeutics (AVTX) stock?

No. The filing states that each reporting person may be deemed to beneficially own 3.54% of Avalo Therapeutics' common stock, which is classified as ownership of 5 percent or less of the class.

In whose name are the Avalo Therapeutics (AVTX) shares actually held?

The 1,862,250 shares are held by funds and separately managed accounts under the control of Nantahala Capital Management, LLC. Harkey and Mack may be deemed beneficial owners through their roles as managing members of Nantahala.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/14/2026 - 04:43 PM Accepted by SEC EDGAR 08/14/2026 - 04:40 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

AVALO THERAPEUTICS, INC.

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

05338F306

(CUSIP Number)

06/30/2026

(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): 05338F306

1

Names of Reporting Persons

Nantahala Capital Management, 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

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,862,250.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,862,250.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,862,250.00

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)

3.54 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 05338F306

1

Names of Reporting Persons

Wilmot B. Harkey

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 STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,862,250.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,862,250.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,862,250.00

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)

3.54 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 05338F306

1

Names of Reporting Persons

Daniel Mack

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 STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,862,250.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,862,250.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,862,250.00

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)

3.54 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AVALO THERAPEUTICS, INC.
(b)	Address of issuer's principal executive offices: 1500 LIBERTY RIDGE DRIVE SUITE 321 WAYNE, PENNSYLVANIA, 19087
Item 2.
(a)	Name of person filing: (1) Nantahala Capital Management, LLC ("Nantahala") (2) Wilmot B. Harkey (3) Daniel Mack (together the "Reporting Persons")
(b)	Address or principal business office or, if none, residence: 130 Main St. 2nd Floor, New Canaan, Connecticut 06840
(c)	Citizenship: (1) Nantahala is a Massachusetts limited liability company. (2) Each of Messrs. Harkey and Mack is a citizen of the United States of America.
(d)	Title of class of securities: Common Stock, $0.001 par value
(e)	CUSIP No.: 05338F306
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: As of June 30, 2026, Nantahala may be deemed to be the beneficial owner of 1,862,250 Shares held by funds and separately managed accounts under its control, and as the managing members of Nantahala, each of Messrs. Harkey and Mack may be deemed to be a beneficial owner of those Shares.
(b)	Percent of class: As of June 30, 2026, each of the Reporting Persons may be deemed to be the beneficial owner of the following percentage of the total number of Shares outstanding: (1) Nantahala Capital Management, LLC ("Nantahala") : 3.54% (2) Wilmot B. Harkey: 3.54% (3) Daniel Mack: 3.54%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: (1) Nantahala Capital Management, LLC ("Nantahala") : 0 Shares. (2) Wilmot B. Harkey: 0 Shares. (3) Daniel Mack: 0 Shares.
	(ii) Shared power to vote or to direct the vote: (1) Nantahala Capital Management, LLC ("Nantahala") : 1,862,250 Shares. (2) Wilmot B. Harkey: 1,862,250 Shares. (3) Daniel Mack: 1,862,250 Shares.
	(iii) Sole power to dispose or to direct the disposition of: (1) Nantahala Capital Management, LLC ("Nantahala") : 0 Shares. (2) Wilmot B. Harkey: 0 Shares. (3) Daniel Mack: 0 Shares.
	(iv) Shared power to dispose or to direct the disposition of: (1) Nantahala Capital Management, LLC ("Nantahala") : 1,862,250 Shares. (2) Wilmot B. Harkey: 1,862,250 Shares. (3) Daniel Mack: 1,862,250 Shares.
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. Each of Messrs. Harkey and Mack is filing this Schedule 13G as a control person in respect of shares beneficially owned by Nantahala, an investment adviser as described in ss. 240.13d-1(b)(1)(ii)(E). See Item 4(a).
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.

Nantahala Capital Management, LLC

Signature:	/s/ Taki Vasilakis
Name/Title:	Taki Vasilakis / Chief Compliance Officer
Date:	08/14/2026

Wilmot B. Harkey

Signature:	/s/ Wilmot B. Harkey
Name/Title:	Wilmot B. Harkey
Date:	08/14/2026

Daniel Mack

Signature:	/s/ Daniel Mack
Name/Title:	Daniel Mack
Date:	08/14/2026