Home > Insider Trading > Filing (0000950170-25-027754)

Filing Details

Accession Number:: 0000950170-25-027754
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2025-02-26 16:15:08
Reporting Period:: 2025-02-24

Filing Date:: 2025-02-26
Accepted Time:: 2025-02-26 16:15:08
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1984086	Septerna Inc.	SEPN	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1778071	Third Rock Ventures V, L.p.	C/O Third Rock Ventures, Llc 201 Brookline Ave, Suite 1401 Boston MA 02215	No	No	No	No
1931056	Third Rock Ventures Vi, L.p.	C/O Third Rock Ventures, Llc 201 Brookline Ave, Suite 1401 Boston MA 02215	No	No	No	No
1977498	Third Rock Ventures Gp V, Lp	C/O Third Rock Ventures, Llc 201 Brookline Ave, Suite 1401 Boston MA 02215	No	No	No	No
1977499	Third Rock Ventures Gp Vi, L.p.	C/O Third Rock Ventures, Llc 201 Brookline Ave, Suite 1401 Boston MA 02215	No	No	No	No
1990716	Trv Gp Vi, Llc	C/O Third Rock Ventures, Llc 201 Brookline Ave, Suite 1401 Boston MA 02215	No	No	No	No
1990717	Trv Gp V, Llc	C/O Third Rock Ventures, Llc 201 Brookline Ave, Suite 1401 Boston MA 02215	No	No	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-02-24	18,861	$6.00	4,211,659	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	6,215,591	Indirect	See Footnotes

Footnotes

The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $5.975 to $6.00, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price at which the transactions were effected.
The shares are held directly by Third Rock Ventures VI, L.P. ("TRV VI"). The general partner of TRV VI is Third Rock Ventures GP VI, L.P. ("TRV GP VI"). The general partner of TRV GP VI is TRV GP VI, LLC ("TRV GP VI LLC"). Each of TRV GP VI, and TRV GP VI LLC, disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares.
The shares are held directly by Third Rock Ventures V, L.P. ("TRV V"). The general partner of TRV V is Third Rock Ventures GP V, L.P. ("TRV GP V"). The general partner of TRV GP V is TRV GP V, LLC ("TRV GP V LLC"). Each of TRV GP V, and TRV GP V LLC, disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares.
Each of Reporting Persons disclaims the existence of a Section 13(d) "group" as between the TRV V related parties and the TRV VI related parties and this report shall not be deemed an admission that any of such parties is or may be part of such a group with any of the other parties.