$SEPN
Septerna, Inc. Common Stock
XNAS•Health Care•Pharmaceutical Preparations
Why is SEPN down today? It is at $40.79 (-7.15%), and our scanner flagged it 58 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment SEPN spikes, and full due diligence on SEPN — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $40.79
- Change today
- -7.15%
- Previous close
- $43.93
- 52-week range
- $10.91 – $51.10
- Market cap
- $2.04B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 3.5M ▲ +5% vs prior · as of 2026-07-31
- Days to cover
- 14.2d
- Avg daily volume
- 343K
- Sector
- Health Care
- Industry
- Pharmaceutical Preparations
- Exchange
- XNAS
- 5m
- 0.5x
- 15m
- 0.5x
- 1h
- 0.5x
- 1D
- 0.4x
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Why is $SEPN down today?
SEPN is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 4 unusual-volume and momentum alerts on SEPN today, peaking at 2.0x its normal volume. A move this size is almost always tied to a specific catalyst. Most of the time that is an earnings report, a guidance update, or a company announcement. If none is shown above, the release may not be in our news feed yet. It will show up here as soon as it is.
Insiders
Insiders selling0 buys, 11 sells last 3 months (0/15 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Ra Capital Management, L.P. Director | Sold (automatic/other) | -1.49M 3.2% of company | sold 21% | 5.50M | $63.5M at $42.50 | Aug 12, 26 |
Third Rock Ventures V, L.P. Beneficial Owner (10%) | Sold (automatic/other) | -147K 0.3% of company | sold 2.4% | 6.07M | $7.4M at $50.27 | Aug 12, 26 |
Bhatt Elizabeth Officer | Sold (automatic/other) | -25K 0.05% of company | sold 13% | 174K | $1.1M at $44.00 | Aug 11, 26 |
Bhatt Elizabeth Officer | Other | 25K 0.05% of company | added 14% | 199K | $69K at $2.76 | Aug 11, 26 |
Long Daniel D. Officer | Sold (automatic/other) | -3K | sold 3.3% | 96K | $113K at $33.98 | Aug 3, 26 |
Long Daniel D. Officer | Other | 3K | added 3.5% | 100K | $9K at $2.76 | Aug 3, 26 |
Bhatt Elizabeth Officer | Sold (automatic/other) | -4K | sold 2.2% | 174K | $136K at $33.99 | Jul 15, 26 |
Bhatt Elizabeth Officer | Other | 4K | added 2.3% | 178K | $27K at $6.81 | Jul 15, 26 |
Long Daniel D. Officer | Sold (automatic/other) | -3K | sold 3.3% | 96K | $114K at $34.10 | Jul 1, 26 |
Long Daniel D. Officer | Other | 3K | added 3.5% | 100K | $9K at $2.76 | Jul 1, 26 |
Shaikhly Samira Officer | Sold (automatic/other) | -2K | sold 73% | 793 | $77K at $35.18 | Jun 29, 26 |
Shaikhly Samira Officer | Other | 2K | added 100% | 3K | $15K at $6.81 | Jun 29, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $SEPN. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$SEPN Sentiment
NeutralBlend of news sentiment, today’s move, and community votes. Not investment advice.
$SEPN Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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SEPN stock FAQ
Why is $SEPN down today?
SEPN is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 4 unusual-volume and momentum alerts on SEPN today, peaking at 2.0x its normal volume. A move this size is almost always tied to a specific catalyst. Most of the time that is an earnings report, a guidance update, or a company announcement. If none is shown above, the release may not be in our news feed yet. It will show up here as soon as it is.
What is the SEPN stock price today?
SEPN last traded at $40.79, down 7.15% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live SEPN alerts?
The SEPN Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged SEPN 58 times in the last 30 days.
What exchange is SEPN on?
SEPN (Septerna, Inc. Common Stock) trades on XNAS, with a market cap of about $2.04B in the PHARMACEUTICAL PREPARATIONS sector.
Is SEPN good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge SEPN for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.