Anteris reports 6,143,154-share holding by Nantahala

Anteris Technologies Global Corp. ownership update: Nantahala Capital Management, LLC and principals report beneficial ownership of 6,143,154 shares of common stock as of March 31, 2026.

Accepted by SEC EDGAR 05/15/2026 - 04:44 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Anteris Technologies Global Corp. ownership update: Nantahala Capital Management, LLC and principals report beneficial ownership of 6,143,154 shares of common stock as of March 31, 2026. The filing states this equals 6.28% of the class and includes 612,244 shares that may be acquired within sixty days through exercise of convertible securities.

The filing is an amended Schedule 13G/A identifying Nantahala as the beneficial owner and Messrs. Wilmot B. Harkey and Daniel Mack as control persons with shared voting and dispositive power over the reported shares.

Insights

Governance & Ownership Specialist

Institutional stake reported with shared control; convertible instruments noted.

The filing lists 6,143,154 shares beneficially owned by Nantahala and each named control person, representing 6.28% of outstanding common stock as of 03/31/2026. It also discloses 612,244 shares potentially issuable within sixty days from convertible securities.

Key dependencies include the conversion/exercise timing and whether the convertible instruments are exercised; subsequent filings could change ownership percentages.

Institutional Investor Analyst

Position size is modest for an institutional holder; disclosure clarifies voting/dispositive structure.

The report shows shared voting and dispositive power rather than sole control, indicating the position is held across funds or managed accounts. The 6.28% stake is visible and traceable to funds under Nantahala's control.

What to watch in company filings: any adjustments to the convertible instruments or updated percent ownership after exercises or additional purchases or sales.

Key Figures

Beneficial ownership: 6,143,154 shares Percent of class: 6.28% Exercisable via convertible securities: 612,244 shares +1 more

4 metrics

Beneficial ownership 6,143,154 shares As of 03/31/2026 reported by Nantahala

Percent of class 6.28% Percentage of total shares outstanding as of 03/31/2026

Exercisable via convertible securities 612,244 shares May be acquired within sixty days through exercise

Filing type Schedule 13G/A Amendment reporting beneficial ownership

Key Terms

beneficially owned, shared dispositive power, Schedule 13G/A

3 terms

beneficially owned regulatory

"As of March 31, 2026, Nantahala may be deemed to be the beneficial owner of 6,143,154 Shares"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared dispositive power regulatory

"Shared Dispositive Power 6,143,154.00"

Schedule 13G/A regulatory

"(Amendment No. 2 ) Anteris Technologies Global Corp. Common stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Nantahala hold in Anteris (AVR)?

Nantahala reports beneficial ownership of 6,143,154 shares, equal to 6.28% of Anteris common stock as of 03/31/2026. This stake is held across funds and managed accounts under Nantahala's control.

Are any of the reported Anteris shares exercisable soon?

Yes. The filing states 612,244 shares are issuable within sixty days upon exercise of convertible securities, as included in the reported 6,143,154 shares beneficially owned as of 03/31/2026.

Do Messrs. Harkey and Mack individually control the reported shares?

The filing indicates each is a control person and may be deemed a beneficial owner, but shows 0 sole voting power and 6,143,154 shared voting power, i.e., shared control across Nantahala-managed accounts.

What filing was used to report this ownership change?

This disclosure is an amended Schedule 13G/A reporting beneficial ownership as of March 31, 2026, signed by the reporting persons and the chief compliance officer on 05/15/2026.

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

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Anteris Technologies Global Corp.

(Name of Issuer)

Common stock, par value $0.0001 per share

(Title of Class of Securities)

03675P102

(CUSIP Number)

03/31/2026

(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): 03675P102

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 6,143,154.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,143,154.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,143,154.00

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)

6.28 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 03675P102

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 6,143,154.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,143,154.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,143,154.00

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)

6.28 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 03675P102

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 6,143,154.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,143,154.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,143,154.00

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)

6.28 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Anteris Technologies Global Corp.
(b)	Address of issuer's principal executive offices: Toowong Tower, Level 3, Suite 302 9 Sherwood Road Toowong, QLD, AUSTRALIA, 4066
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, par value $0.0001 per share
(e)	CUSIP No.: 03675P102
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 March 31, 2026, Nantahala may be deemed to be the beneficial owner of 6,143,154 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 6,143,154 Shares Include 612,244 Shares which may be acquired by the Reporting Persons within sixty days through the exercise of convertible securities.
(b)	Percent of class: As of March 31, 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") : 6.28% (2) Wilmot B. Harkey: 6.28% (3) Daniel Mack: 6.28%
(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") : 6,143,154 Shares. (2) Wilmot B. Harkey: 6,143,154 Shares. (3) Daniel Mack: 6,143,154 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") : 6,143,154 Shares. (2) Wilmot B. Harkey: 6,143,154 Shares. (3) Daniel Mack: 6,143,154 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.
	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:	05/15/2026

Wilmot B. Harkey

Signature:	/s/ Wilmot B. Harkey
Name/Title:	Wilmot B. Harkey
Date:	05/15/2026

Daniel Mack

Signature:	/s/ Daniel Mack
Name/Title:	Daniel Mack
Date:	05/15/2026