Nantahala reports 4.30% Inhibikase (IKT) stake across 5.81M shares

Rhea-AI Filing Summary

Nantahala Capital Management, LLC, together with Wilmot B. Harkey and Daniel Mack, reports beneficial ownership of Inhibikase Therapeutics common stock. As of June 30, 2026, they may be deemed to beneficially own 5,810,487 shares, representing 4.30% of the outstanding common stock.

The position includes 3,108,624 shares that may be acquired within sixty days through the exercise of convertible securities, held in funds and separately managed accounts under Nantahala’s control. The Reporting Persons have no sole voting or dispositive power, but share voting and dispositive power over all 5,810,487 shares and indicate ownership of five percent or less of the class.

Key Figures

Beneficially owned shares: 5,810,487 shares Percent of class: 4.30% Shares acquirable via convertibles: 3,108,624 shares +2 more

5 metrics

Beneficially owned shares 5,810,487 shares Shares beneficially owned by the Reporting Persons as of June 30, 2026

Percent of class 4.30% Percentage of Inhibikase common stock beneficially owned as of June 30, 2026

Shares acquirable via convertibles 3,108,624 shares Shares that may be acquired within sixty days through exercise of convertible securities

Shared voting power 5,810,487 shares Shares over which the Reporting Persons have shared power to vote or direct the vote

Sole voting power 0 shares Shares over which each Reporting Person has sole power to vote

Key Terms

beneficial owner, shared voting power, dispositive power, convertible securities, +1 more

5 terms

beneficial owner financial

"Nantahala may be deemed to be the beneficial owner of 5,810,487 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 5,810,487.00"

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.

dispositive power financial

"Shared Dispositive Power 5,810,487.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

convertible securities financial

"Shares which may be acquired by the Reporting Persons within sixty days through the exercise of convertible securities"

Convertible securities are bonds or preferred shares that can be exchanged for a company’s common stock at a predetermined price or under specified conditions. They matter because they combine the steadiness of a loan or fixed dividend with the potential upside of ownership; like a safety‑net that carries a one‑time ticket to become a shareholder, they affect expected returns and can dilute existing stock if converted.

separately managed accounts financial

"Shares held by funds and separately managed accounts under its control"

A separately managed account is an investment portfolio owned by a single investor but professionally managed to that investor’s specific goals and preferences, rather than pooled with other clients’ money. It matters to investors because it offers greater customization, tax control and transparency—like hiring a personal chef instead of eating from a shared buffet—though it often requires higher minimums and can have different fee and liquidity implications.

FAQ

What percentage of Inhibikase Therapeutics (IKT) does Nantahala currently report owning?

Nantahala and its affiliated Reporting Persons report beneficial ownership of 4.30% of Inhibikase Therapeutics’ common stock as of June 30, 2026. This percentage is based on 5,810,487 shares deemed beneficially owned.

How many Inhibikase (IKT) shares does Nantahala report as beneficially owned?

Nantahala and the other Reporting Persons may be deemed beneficial owners of 5,810,487 Inhibikase common shares. These shares are held by funds and separately managed accounts under Nantahala’s control, with shared voting and dispositive power over the entire amount.

How many Inhibikase (IKT) shares can Nantahala acquire via convertible securities?

The Reporting Persons disclose that 3,108,624 Inhibikase shares may be acquired within sixty days through the exercise of convertible securities. These potential shares are included in the total 5,810,487 shares deemed beneficially owned.

Does Nantahala have sole or shared voting power over its Inhibikase (IKT) holdings?

The Reporting Persons have 0 shares with sole voting power and 5,810,487 shares with shared voting power. They likewise report no sole dispositive power and shared dispositive power over the same 5,810,487 shares.

Why does this Inhibikase (IKT) Schedule 13G/A state ownership of 5 percent or less?

The filing indicates “Ownership of 5 percent or less of a class”, consistent with the reported 4.30% beneficial ownership. This confirms that Nantahala and the other Reporting Persons now hold five percent or less of Inhibikase’s outstanding common stock.

Who are the Reporting Persons in this Inhibikase (IKT) Schedule 13G/A?

The Reporting Persons are Nantahala Capital Management, LLC, Wilmot B. Harkey, and Daniel Mack. Nantahala is a Massachusetts limited liability company; Messrs. Harkey and Mack are U.S. citizens and managing members of Nantahala.

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

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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)

INHIBIKASE THERAPEUTICS, INC.

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

45719W205

(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): 45719W205

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 5,810,487.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,810,487.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,810,487.00

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)

4.30 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 45719W205

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 5,810,487.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,810,487.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,810,487.00

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)

4.30 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 45719W205

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 5,810,487.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,810,487.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,810,487.00

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)

4.30 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: INHIBIKASE THERAPEUTICS, INC.
(b)	Address of issuer's principal executive offices: 1000 N. WEST STREET, SUITE 1200 WILMINGTON, DELAWARE, 19801
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.: 45719W205
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 5,810,487 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. The 5,810,487 Shares Include 3,108,624 Shares which may be acquired by the Reporting Persons within sixty days through the exercise of convertible securities.
(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") : 4.30% (2) Wilmot B. Harkey: 4.30% (3) Daniel Mack: 4.30%
(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") : 5,810,487 Shares. (2) Wilmot B. Harkey: 5,810,487 Shares. (3) Daniel Mack: 5,810,487 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") : 5,810,487 Shares. (2) Wilmot B. Harkey: 5,810,487 Shares. (3) Daniel Mack: 5,810,487 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