Sec Form 13D Filing - Third Rock Ventures IV, L.P. filing for - 2025-11-21

Insider filing report for Changes in Beneficial Ownership

  • Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
  • Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
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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



Comment for Type of Reporting Person:
The percent of class was calculated based on 134,593,998 shares of common stock issued and outstanding as of October 28, 2025, as disclosed in the Issuer's 10-Q filed with the Securities and Exchange Commission on November 4, 2025.


SCHEDULE 13D



Comment for Type of Reporting Person:
The percent of class was calculated based on 134,593,998 shares of common stock issued and outstanding as of October 28, 2025, as disclosed in the Issuer's 10-Q filed with the Securities and Exchange Commission on November 4, 2025.


SCHEDULE 13D



Comment for Type of Reporting Person:
The percent of class was calculated based on 134,593,998 shares of common stock issued and outstanding as of October 28, 2025, as disclosed in the Issuer's 10-Q filed with the Securities and Exchange Commission on November 4, 2025.


SCHEDULE 13D

 
Third Rock Ventures IV, L.P.
 
Signature:/s/ Kevin Gillis
Name/Title:Kevin Gillis, COO of TRV GP IV, LLC, the general partner of Third Rock Ventures GP IV, L.P., the general partner of Third Rock Ventures IV, L.P.
Date:11/21/2025
 
Third Rock Ventures GP IV, L.P.
 
Signature:/s/ Kevin Gillis
Name/Title:Kevin Gillis, COO of TRV GP IV, LLC, the general partner of Third Rock Ventures GP IV, L.P.
Date:11/21/2025
 
TRV GP IV, LLC
 
Signature:/s/ Kevin Gillis
Name/Title:Kevin Gillis, COO
Date:11/21/2025
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