[SCHEDULE 13G] Eloxx Pharmaceuticals, Inc. Passive Investment Disclosure (>5%)
Nantahala reports 9.91% stake in Eloxx Pharmaceuticals
Nantahala Capital Management, LLC, together with Wilmot B. Harkey and Daniel Mack, reports beneficial ownership of common stock of Eloxx Pharmaceuticals, Inc..
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Nantahala Capital Management, LLC, together with Wilmot B. Harkey and Daniel Mack, reports beneficial ownership of common stock of Eloxx Pharmaceuticals, Inc..
As of June 30, 2026, the reporting persons may be deemed to beneficially own 400,000 shares of Eloxx common stock, representing 9.91% of the outstanding class. They report 0 shares with sole voting or dispositive power and 400,000 shares with shared voting and shared dispositive power. BLACKWELL PARTNERS LLC - SERIES A, a fund advised by Nantahala, has the right to receive or direct dividends and sale proceeds from more than five percent of these shares.
Key Figures
Shares beneficially owned:400,000 SharesPercent of class:9.91%Shared voting power:400,000 Shares+2 more
5 metrics
Shares beneficially owned400,000 SharesBeneficially owned by Nantahala and related persons as of June 30, 2026
Percent of class9.91%Percentage of Eloxx common stock beneficially owned by each reporting person
Shared voting power400,000 SharesShares with shared power to vote or direct the vote
Sole voting power0 SharesShares with sole power to vote or direct the vote
Shared dispositive power400,000 SharesShares with shared power to dispose or direct disposition
"may be deemed to be the beneficial owner of 400,000 Shares held"
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 powerfinancial
"Shared Voting Power 400,000.00"
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 powerfinancial
"Shared Dispositive Power 400,000.00"
investment adviserfinancial
"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.
Schedule 13Gregulatory
"Each of Messrs. Harkey and Mack is filing this as a control person"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What stake in Eloxx Pharmaceuticals (ELOX) does Nantahala Capital report?
Nantahala Capital and associated reporting persons report beneficial ownership of 400,000 shares of Eloxx Pharmaceuticals common stock, representing 9.91% of the outstanding class as of June 30, 2026.
Who are the reporting persons in this Eloxx Pharmaceuticals (ELOX) Schedule 13G?
The reporting persons are Nantahala Capital Management, LLC, Wilmot B. Harkey, and Daniel Mack, who may be deemed beneficial owners of 400,000 Eloxx common shares held by funds and managed accounts under Nantahala’s control.
How much voting power does Nantahala have in Eloxx Pharmaceuticals (ELOX)?
The reporting persons report 0 shares with sole voting power and 400,000 shares with shared voting power in Eloxx Pharmaceuticals common stock as of June 30, 2026.
Which entity receives dividends from Eloxx (ELOX) shares held by Nantahala?
BLACKWELL PARTNERS LLC - SERIES A, a fund advised by Nantahala, has the right to receive or direct the receipt of dividends and sale proceeds from more than five percent of the Eloxx common shares reported.
What percentage of Eloxx Pharmaceuticals (ELOX) does each individual reporting person own?
Each of Nantahala Capital Management, LLC, Wilmot B. Harkey, and Daniel Mack may be deemed to beneficially own 9.91% of Eloxx Pharmaceuticals’ outstanding common stock as of June 30, 2026.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
ELOXX PHARMACEUTICALS, INC.
(Name of Issuer)
Common Stock, $0.01 par value per share
(Title of Class of Securities)
29014R301
(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):
29014R301
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
400,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
400,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
400,000.00
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)
9.91 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
CUSIP Number(s):
29014R301
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
400,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
400,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
400,000.00
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)
9.91 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
29014R301
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
400,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
400,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
400,000.00
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)
9.91 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
ELOXX PHARMACEUTICALS, INC.
(b)
Address of issuer's principal executive offices:
P.O. BOX 274 ARLINGTON, MASSACHUSETTS, 02476
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, $0.01 par value per share
(e)
CUSIP Number(s):
29014R301
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 400,000 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") : 9.91%
(2) Wilmot B. Harkey: 9.91%
(3) Daniel Mack: 9.91%
(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") : 400,000 Shares.
(2) Wilmot B. Harkey: 400,000 Shares.
(3) Daniel Mack: 400,000 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") : 400,000 Shares.
(2) Wilmot B. Harkey: 400,000 Shares.
(3) Daniel Mack: 400,000 Shares.
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.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
BLACKWELL PARTNERS LLC - SERIES A, a fund advised by Nantahala, has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of more than five percent of the outstanding shares of common stock beneficially owned by Nantahala reported herein.
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.
