Security key
81734D104
Septerna, Inc. - Common Stock, $0.001 par value per share (SEPN)
CUSIP: 81734D104
Q4 2024 13F Holders as of 31 Dec 2024
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 44,129,388
- Total 13F value
- $1,010,571,873
- Share change
- +33,632,096
- SEC-reported price per share
- $22.90
- Number of holders
- 71
- Value change
- +$770,183,886
- Number of buys
- 66
- Shares outstanding
- 45,283,737
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2024
Institutions
71
Top holders
10
SEPN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Septerna, Inc. SEC filings
Septerna, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 81734D104
Recent filing periods:
Ownership snapshot
Top reported holders of SEPN - Septerna, Inc. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Third Rock Ventures V, L.P.
Disclosed value leader
Third Rock Ventures V, L.P.
Comparable rows
0/2
Latest evidence
28 Oct 2024
3/4/5
Highest disclosed value: $54,803,075
2 rows are not safely comparable across share classes.
Quick read
Third Rock Ventures V, L.P. has the largest disclosed position value at $54.8M.
0 of 2 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Third Rock Ventures V, L.P.'s linked filing trail.
Disclosed position value
Top 2
Third Rock Ventures V, L.P.
$54.8M
Ran Xiao
$339.7K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-2 of 2 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Third Rock Ventures V, L.P. |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$54,803,075
9,368,047 shares
|
— | 28 Oct 2024 |
| Ran Xiao |
3/4/5
Interim CFO
|
—
class O/S missing
|
$339,704
58,069 shares
|
— | 24 Oct 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
71
Shares
44,129,388
Rows available
71
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2024 vs Q3 2024 Across Filers
Q3 2024 holders
0
Q4 2024 holders
71
Holder diff
71
| Investor | Q3 2024 Shares | Q4 2024 Shares | Share Diff | Share Chg % | Q3 2024 value | Q4 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend