Septerna Ownership | Who Owns Septerna?
Septerna Ownership Summary
Septerna is owned by 35.94% institutional investors, 3.09% insiders, and 60.97% retail investors. Ra capital management is the largest institutional shareholder, holding 15.81% of SEPN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.02% of its assets in Septerna shares.
SEPN Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Septerna | 35.94% | 3.09% | 60.97% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Ra capital management | 7.00M | 15.81% | $168.11M |
| Trv gp v | 6.22M | 14.04% | $149.36M |
| Driehaus capital management | 4.40M | 9.93% | $105.63M |
| Trv gp vi | 4.21M | 9.52% | $101.21M |
| Samsara biocapital | 3.15M | 7.12% | $75.67M |
| Goldman sachs group | 2.91M | 6.57% | $69.84M |
| Siren | 2.00M | 4.52% | $48.06M |
| Blackrock funding, inc. /de | 1.82M | 4.12% | $43.79M |
| Vanguard group | 1.51M | 3.40% | $42.05M |
| Bvf inc/il | 1.35M | 3.06% | $32.52M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Trv gp vi | 4.21M | 74.64% | $101.21M |
| Trv gp v | 6.22M | 37.25% | $149.36M |
| Samsara biocapital | 3.15M | 7.35% | $75.67M |
| Adar1 capital management | 1.18M | 2.08% | $22.13M |
| Ra capital management | 7.00M | 1.78% | $168.11M |
| First light asset management | 732.86K | 1.58% | $17.61M |
| Catalio capital management, lp | 294.36K | 1.48% | $7.07M |
| Siren | 2.00M | 1.33% | $48.06M |
| Bvf inc/il | 1.35M | 1.04% | $32.52M |
| Casdin capital | 553.27K | 1.01% | $13.30M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Janus henderson group | 890.75K | 0.01% | 890.75K |
| Primecap management co/ca/ | 1.05M | 0.02% | 502.73K |
| Adar1 capital management | 1.18M | 2.08% | 329.26K |
| Balyasny asset management | 236.68K | 0.01% | 233.11K |
| Goldman sachs group | 2.91M | 0.01% | 191.30K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Perceptive advisors | - | - | -433.16K |
| Driehaus capital management | 4.40M | 0.78% | -413.90K |
| Sio capital management | 189.20K | 0.90% | -395.24K |
| Woodline partners lp | - | - | -385.31K |
| Bvf inc/il | 1.35M | 1.04% | -367.53K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Janus henderson group | 890.75K | 0.01% | 890.75K | $21.33M |
| Vanguard fiduciary trust | 154.48K | 0.00% | 154.48K | $3.71M |
| Hussman strategic advisors | 105.00K | 0.55% | 105.00K | $2.52M |
| Sofinnova investments | 47.51K | 0.04% | 47.51K | $1.14M |
| Renaissance | 37.70K | 0.00% | 37.70K | $905.93K |
Sold Out
| Holder | Change |
|---|---|
| Srs capital advisors | -3.00 |
| Aster capital management (difc) | -20.00 |
| Daiwa securities group | -149.00 |
| Comerica bank | -212.00 |
| Raymond james financial | -222.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 56 | -55.91% | 15,904,937 | -65.11% | 35 | 0.34% | 34 | -55.26% | 11 | -62.07% |
| Dec 31, 2025 | 74 | -14.94% | 22,232,408 | -50.09% | 50 | 0.49% | 50 | 11.11% | 10 | -41.18% |
| Sep 30, 2025 | 84 | -3.45% | 44,466,323 | 3.68% | 100 | 1.07% | 43 | -21.82% | 17 | 6.25% |
| Jun 30, 2025 | 94 | 27.03% | 44,430,374 | -1.90% | 100 | 0.95% | 57 | -19.72% | 19 | - |
| Mar 31, 2025 | 1 | - | 1,912,929 | - | 5 | - | 1 | - | - | - |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 906.66K | 2.02% | - |
| PRIMECAP Odyssey Aggressive Growth | 749.68K | 1.67% | 322.38K |
| iShares Russell 2000 ETF | 504.42K | 1.12% | 4.23K |
| Heptagon Driehaus US Micro Cap Eq C$ Acc | 398.35K | 0.89% | - |
| Driehaus Small Cap Growth Institutional | 377.02K | 0.84% | - |
| Heptagon Driehaus US Sm Cp Eq C USD Acc | 361.25K | 0.80% | 4.23K |
| Vanguard Institutional Extnd Mkt Idx Tr | 260.63K | 0.58% | 1.41K |
| Fidelity Small Cap Index | 209.39K | 0.47% | 1.96K |
| iShares Biotechnology ETF | 197.92K | 0.44% | 1.25K |
| iShares Russell 2000 Value ETF | 182.88K | 0.41% | 987.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 26, 2026 | Shaikhly Samira | Chief People Officer | Sell | $354.66K |
| Apr 15, 2026 | Bhatt Elizabeth | President and COO | Sell | $27.79K |
| Apr 15, 2026 | Bhatt Elizabeth | President and COO | Sell | $8.43K |
| Apr 15, 2026 | Bhatt Elizabeth | President and COO | Sell | $61.12K |
| Mar 02, 2026 | Shaikhly Samira | Chief People Officer | Sell | $1.87M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 4 |
| 2026 Q1 | - | 4 |
| 2025 Q4 | - | 1 |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
SEPN Ownership FAQ
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