Anteris Technologies Global Corp. ownership disclosure: Sio Capital Management, LLC amended its Schedule 13G to report beneficial ownership of 5,382,965 shares of Common Stock as of March 31, 2026. The filing states this represents 5.54% of the class based on 97,232,054 shares outstanding as of February 25, 2026.
The statement clarifies voting and dispositive power as shared and explains relationships among Sio, Sio GP, LLC and Michael Castor; the filing includes a disclaimer about formal beneficial‑owner attribution.
Positive
None.
Negative
None.
Insights
Sio holds a mid‑single‑digit stake with shared voting and dispositive power.
The filing records 5,382,965 shares owned by Sio as of March 31, 2026, equal to 5.54% of the class using the issuer's February 25, 2026 outstanding count. Shared power indicates ownership through advisory relationships rather than direct sole control.
Watch subsequent Schedule 13D/G amendments or Form 4s for any shift in voting/control disclosures or changes to the reported percentage.
Filing emphasizes advisory structure and a control disclaimer by related entities.
The statement explains Sio acts as investment adviser to affiliated funds and that Sio GP and Michael Castor may be deemed to control or influence decisions, while expressly disclaiming such beneficial ownership admissions. This is common when adviser/GP relationships exist.
Investors tracking ownership should note the shared voting and read future filings for any change in voting or disposition authority.
Key Figures
Shares beneficially owned:5,382,965 sharesPercent of class:5.54%Shares outstanding used:97,232,054 shares+2 more
5 metrics
Shares beneficially owned5,382,965 sharesBeneficial ownership reported as of March 31, 2026
Percent of class5.54%Calculated using 97,232,054 shares outstanding as of February 25, 2026
Shares outstanding used97,232,054 sharesOutstanding count from issuer Form 10‑K (as of February 25, 2026)
Shared voting power5,382,965 sharesReported shared voting power in Item 4
Sole voting power0 sharesReported in Item 4(i)
Key Terms
Schedule 13G/A, beneficially owned, shared dispositive power, Form 10‑K reference
4 terms
Schedule 13G/Aregulatory
"Amendment No. 3 to Schedule 13G/A reporting beneficial ownership"
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.
beneficially ownedfinancial
"Sio beneficially owned 5,382,965 shares of Common Stock"
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 powerregulatory
"Shared dispositive power 5,382,965.00 reported in Item 4"
Form 10‑K referenceregulatory
"Based on 97,232,054 shares outstanding as of February 25, 2026"
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 3)
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
Sio 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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
5,382,965.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,382,965.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,382,965.00
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)
5.54 %
12
Type of Reporting Person (See Instructions)
IA
Comment for Type of Reporting Person: 1 As of March 31, 2026, Sio Capital Management, LLC beneficially owned 5,382,965 shares of Common Stock with shared voting power and shared dispositive power.
2 Based on 97,232,054 shares of common stock outstanding, as of February 25, 2026, as provided in the Form 10-K of the Issuer filed on February 26, 2026.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Anteris Technologies Global Corp.
(b)
Address of issuer's principal executive offices:
860 Blue Gentian Road, Suite 340, Eagan, MN, 55121
Item 2.
(a)
Name of person filing:
This Statement is filed on behalf of Sio Capital Management, LLC (the "Reporting Person" or "Sio")
Sio is a registered investment adviser to certain affiliated funds that directly hold the shares of Common Stock to which this statement relates for the benefit of their respective investors, and in such capacity Sio has voting and dispositive power over such shares.
(b)
Address or principal business office or, if none, residence:
600 Third Avenue, 2nd Floor New York, New York 10016
(c)
Citizenship:
Sio is a Delaware limited liability company.
(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:
5,382,965
(b)
Percent of class:
5.54 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
5,382,965 - Refer to footnote 3
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
5,382,965 - Refer to footnote 3
3 Sio and Sio GP, LLC (the "GP") act as investment advisor and general partner, respectively, to various clients that are the record owners of the Common Stock reported on this Schedule 13G. Because Sio's investment discretion with respect to such clients is subject to oversight by the GP, the GP may be deemed to be the beneficial owner of the Common Stock of the Issuer owned by such clients. In addition, both Sio and the GP are controlled by Michael Castor. As such, he may be deemed to control the voting and dispositive decisions with respect to, and therefore be the beneficial owner of, the shares of Common Stock reported on this Schedule 13G. Neither the filing of this Schedule 13G nor any of its contents shall be deemed to constitute an admission by the GP or Michael Castor that such person is the beneficial owner of any of the equity securities referred to herein for purposes of Section 13(d) of the Exchange Act, or for any other purpose, and such beneficial ownership is expressly disclaimed.
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.
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 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.
What stake does Sio Capital report in Anteris Technologies (AVR)?
Sio Capital reports beneficial ownership of 5,382,965 shares. The filing states this equals 5.54% of the class based on 97,232,054 shares outstanding as of February 25, 2026.
As of what date is Sio Capital's ownership reported?
The ownership position is reported as of March 31, 2026. The filing ties the percentage calculation to the outstanding share count disclosed as of February 25, 2026 in the issuer's Form 10‑K.
Does Sio Capital have sole voting or dispositive power over AVR shares?
No. The filing shows 0 shares with sole voting or dispositive power and 5,382,965 shares with shared voting and shared dispositive power, reflecting advisory relationships and pooled ownership structures.
Who else is referenced in the filing as related to control or ownership?
The filing references Sio GP, LLC and Michael Castor, noting oversight and control relationships. It states these parties may be deemed to control decisions but expressly disclaims admission of beneficial ownership.
Where can I find the outstanding share count used to calculate the percentage?
The percentage is based on 97,232,054 shares outstanding cited from the issuer's Form 10‑K filed on February 26, 2026, which reported the outstanding count as of February 25, 2026.
