Septerna, Inc. - Common Stock (SEPN)

Historical Holders from Q4 2024 to Q3 2025

Symbol
SEPN on Nasdaq
CUSIP
81734D104
Type / Class
Equity / Common Stock
Shares outstanding
44.5M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
44.5M
Holdings value
$838M
% of all portfolios
0.002%
Grand Portfolio weight change
+0%
Number of holders
82
Number of buys
40
Number of sells
-33
Average Value change %
0%
Average buys %
+0%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Septerna, Inc. - Common Stock (SEPN)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Third Rock Ventures V, L.P. 14% 0% $35.6M 6.22M 0% Third Rock Ventures V, L.P. Mar 31, 2025
DRIEHAUS CAPITAL MANAGEMENT LLC 10.46% +49% $31.4M $10.3M 4.66M +49.2% DRIEHAUS CAPITAL MANAGEMENT LLC May 31, 2025
BIOTECHNOLOGY VALUE FUND L P 9.9% $25.1M 4.4M BVF PARTNERS L P/IL Mar 31, 2025

Institutional Holders of Septerna, Inc. - Common Stock (SEPN)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 44.5M $838M +$6.41M $18.81 82
2025 Q2 44.4M $470M -$8.2M $10.57 89
2025 Q1 45.3M $262M -$67.7M $5.79 69
2024 Q4 44.1M $1.01B +$770M $22.90 71