Septerna, Inc. [SEPN]

Neutral Insider Activity Observed

Officer Klein Uwe executed an insider trade by purchasing 10,452 shares of SEPN at a price of $11.59 per share, valued at $0.0. Given the minimal value of the trade and the slight increase in current share price to $11.70, this activity does not strongly indicate a bullish signal.
Insider Profile Summary: Klein Uwe - Officer at Sepn Technologies (Ticker: SEPN)

Klein Uwe, an officer at Sepn Technologies, has demonstrated a strategic approach to insider trading with a focus on long-term returns. On August 18, 2025, Klein purchased 10,452 shares at a price of $11.59 per share, valued at approximately $121,198.68. The current share price is $11.70, indicating a modest immediate gain.

Performance Analysis:
- Number of Profitable Trades: Klein's trading history shows a consistent trend of profitable trades, particularly over a 90-day period. The most recent trade has already shown promise with a significant increase in price to $24.20 within 90 days, representing a 108.88% return on investment.
- Win Rate: Klein's trades exhibit a high win rate, particularly evident in the substantial gains seen in the 90-day returns.
- Behavior Trend: Klein's trading behavior indicates a bullish outlook, with a predominant trend of purchasing shares rather than selling, suggesting confidence in the long-term performance of the company.

Cluster Activity:
There is no significant cluster activity reported around the time of Klein's recent trade. However, the absence of recent trades from the CEO or CFO suggests a potentially cautious or stable period within the company's insider trading activities. This lack of cluster activity may imply that Klein's trades are based on personal confidence in the stock rather than broader executive strategy.

In summary, Klein Uwe's trading history reflects a strong understanding of market trends and a successful track record in timing purchases for maximum return over an extended period.
To analyze the stock performance following each purchase by the insider "Klein Uwe," we will summarize the returns based on the specified timeframes. Unfortunately, the provided data only includes returns for 30, 60, and 90 days after the purchase. Therefore, for a comprehensive analysis, additional historical data is needed for the other timeframes (1 day, 3 days, 7 days, 14 days, 180 days, and 1 year after). However, we can work with the available data:

Performance Analysis:
1. 1 Day After: Data not provided.
2. 3 Days After: Data not provided.
3. 7 Days After: Data not provided.
4. 14 Days After: Data not provided.
5. 30 Days After:
- Purchase Price: $11.59
- 30-Day Return Price: $11.75
- Return: ((11.75 - 11.59) / 11.59) * 100 = 1.38%

6. 60 Days After:
- Purchase Price: $11.59
- 60-Day Return Price: $11.75
- Return: ((11.75 - 11.59) / 11.59) * 100 = 1.38%

7. 90 Days After:
- Purchase Price: $11.59
- 90-Day Return Price: $24.2
- Return: ((24.2 - 11.59) / 11.59) * 100 = 108.74%

8. 180 Days After: Data not provided.
9. 1 Year After: Data not provided.

Average Return Calculation:
- Available Data Points: 30-day, 60-day, 90-day
- Average Return: (1.38% + 1.38% + 108.74%) / 3 = 37.17%

Average Holding Time:
- Based on the available data points, the average holding period with performance data is 60 days (since 30, 60, and 90 days are provided).

Profitability and Comparison:
- Profitability: From the data provided, the 90-day return is significantly higher than the other periods, indicating a potentially profitable trade at that point. However, the 30-day and 60-day returns are relatively modest.
- Consistency: Without data for the other timeframes, it's challenging to assess consistency, but the available data suggests variability in returns.
- Trade Size Comparison: The current trade involves 10,452 shares at a price of $11.59, totaling approximately $121,126.68. Without historical trade size data, it is impossible to compare directly to past trades.

Conclusion:
The available data suggests that the trade became highly profitable by the 90-day mark. However, the consistency of profitability cannot be fully assessed without additional historical data. This trade size can only be compared in context if previous trade sizes are known.
Based on the provided insider trade details, here is the evaluation:

- Role: The trade was made by an officer, not specifically a CEO or CFO, which slightly reduces the conviction compared to top executives.
- Purchase Type: The shares were purchased on the open market, indicating a personal financial commitment and a positive signal.
- Size of Purchase: The purchase of 10,452 shares at $11.59 each amounts to a significant investment of approximately $121,000, suggesting a reasonable level of confidence in the company's prospects.
- Ownership Type: The shares are directly owned, indicating personal belief in the company’s future performance.
- Cluster Activity: No information is provided about other insiders making similar purchases around the same time, so no cluster activity can be inferred.

Conviction Score: Medium

The insider purchase by Uwe Klein shows a reasonable level of confidence given the open market nature and direct ownership of the shares. While the officer role is less convincing than a top executive's purchase, the substantial investment size and subsequent positive price return over 90 days support a medium conviction level.
Based on the insider trade activity of Klein Uwe, an officer at SEPN, the transaction appears to be moderately bullish. Uwe has directly purchased 10,452 shares at a price of $11.59 per share, which is slightly below the current market price of $11.70, indicating confidence in the stock's near-term potential. Historically, Uwe's trades have shown a positive correlation with subsequent price increases, with past transactions often preceding notable upward movements in the stock. While the size of this purchase is consistent with Uwe's typical trading behavior and not an outlier, the timing is particularly interesting as it occurs after the stock has experienced a significant 90-day return of 24.2%, suggesting that he anticipates continued momentum. The trade's alignment with the recent rally could signal further upside, though the modest size might suggest a cautious optimism rather than an aggressive bullish stance.
Klein Uwe's direct purchase of 10,452 SEPN shares at $11.59, with a current price of $11.70, suggests insider confidence which often precedes positive stock performance; this insider buying could be a valuable signal for short to mid-term entry opportunities.