If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D






SCHEDULE 13D




Comment for Type of Reporting Person:
All shares are held by VAF V (as defined in Item 2(a) of the Original 13D (as defined in Item 1 below)). VV V (as defined in Item 2(a) of the Original 13D) is the sole general partner of VAF V and may be deemed to have voting and dispositive power over the securities held by VAF V and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares (as defined in Item 1 of the Original 13D) outstanding as of October 31, 2025, as set forth in the Issuer's quarterly report on Form 10-Q for the quarter ended September 30, 2025, filed with the United States Securities and Exchange Commission (the "Commission") on November 14, 2025 (the "Form 10-Q").


SCHEDULE 13D




Comment for Type of Reporting Person:
All shares are held by VOA (as defined in Item 2(a) of the Original 13D). VV V is the sole general partner of VOA and may be deemed to have voting and dispositive power over the securities held by VOA and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D




Comment for Type of Reporting Person:
The shares reported in Rows 8 and 10 consist of (i) 2,693 Common Shares held by VAF V and (ii) 2,982 Common Shares held by VOA. VV V is the sole general partner of each of VAF V and VOA and may be deemed to have voting and dispositive power over the securities held by each of VAF V and VOA. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D




Comment for Type of Reporting Person:
All shares held by VVC CAN (as defined in Item 2(a) of the Original 13D). VV V CAN GP (as defined in Item 2(a) of the Original 13D) is the sole general partner of VV V CAN (as defined in Item 2(a) of the Original 13D), and VV V CAN is the sole general partner of VVC CAN. Each of VV V CAN GP and VV V CAN share voting and dispositive power over the shares held by VVC CAN and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D




Comment for Type of Reporting Person:
All shares held by VVC CAN. VV V CAN GP is the sole general partner of VV V CAN, and VV V CAN is the sole general partner of VVC CAN. Each of VV V CAN GP and VV V CAN share voting and dispositive power over the shares held by VVC CAN and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D




Comment for Type of Reporting Person:
All shares held by VVC CAN. VV V CAN GP is the sole general partner of VV V CAN, and VV V CAN is the sole general partner of VVC CAN. Each of VV V CAN GP and VV V CAN share voting and dispositive power over the shares held by VVC CAN and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D




Comment for Type of Reporting Person:
All shares are held by Vantage LP (as defined in Item 2(a) of the Original 13D). Vantage LLC (as defined in the Original 13D) is the general partner of Vantage GP (as defined in Item 2(a) of the Original 13D), which is the general partner of Vantage LP. Each of Vantage LLC and Vantage GP share voting and dispositive power over the shares held by Vantage LP and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D




Comment for Type of Reporting Person:
All shares are held by Vantage LP. Vantage LLC is the general partner of Vantage GP, which is the general partner of Vantage LP. Each of Vantage LLC and Vantage GP share voting and dispositive power over the shares held by Vantage LP and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D




Comment for Type of Reporting Person:
All shares are held by Vantage LP. Vantage LLC is the general partner of Vantage GP, which is the general partner of Vantage LP. Each of Vantage LLC and Vantage GP share voting and dispositive power over the shares held by Vantage LP and as a result may be deemed to have beneficial ownership over such securities. The percentage in Row 13 is based on 42,985,755 Common Shares outstanding as of October 31, 2025, as reported in the Form 10-Q.


SCHEDULE 13D


 
Versant Venture Capital V, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures V, LLC the GP of Versant Venture Capital V, L.P.
Date:11/21/2025
 
Versant Affiliates Fund V, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures V, LLC the GP of Versant Affiliates Fund V, L.P.
Date:11/21/2025
 
Versant Ophthalmic Affiliates I, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures V, LLC the GP of Versant Ophthalmic Affiliates I, L.P.
Date:11/21/2025
 
Versant Ventures V, LLC
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO
Date:11/21/2025
 
Versant Venture Capital V (Canada) LP
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures V GP-GP (Canada), Inc., GP of Versant Ventures V (Canada), L.P., GP of Versant Venture Capital (Canada) LP
Date:11/21/2025
 
Versant Ventures V (Canada), L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures V GP-GP (Canada), Inc. the GP of Versant Ventures V (Canada), L.P.
Date:11/21/2025
 
Versant Ventures V GP-GP (Canada), Inc.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO
Date:11/21/2025
 
Versant Venture Capital VI, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures VI GP-GP, LLC the GP of Versant Ventures VI GP, L.P. the GP of Versant Venture Capital VI, L.P.
Date:11/21/2025
 
Versant Ventures VI GP, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Ventures VI GP-GP, LLC the GP of Versant Ventures VI GP, L.P.
Date:11/21/2025
 
Versant Ventures VI GP-GP, LLC
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO
Date:11/21/2025
 
Versant Vantage I, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Vantage I GP-GP, LLC the GP of Versant Vantage I GP, L.P. the GP of Versant Vantage I, L.P.
Date:11/21/2025
 
Versant Vantage I GP, L.P.
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO of Versant Vantage I GP-GP, LLC the GP of Versant Vantage I GP, L.P.
Date:11/21/2025
 
Versant Vantage I GP-GP, LLC
 
Signature:/s/ Max Eisenberg
Name/Title:Max Eisenberg, COO
Date:11/21/2025