Shattuck Labs shares surge 13.10% after-hours after HC Wainwright upgrades to Buy with $6 price target.

think> Okay, let's tackle this query step by step. The user wants me to act as a financial analyst explaining a stock price movement based on recent news. The stock in question is Shattuck Labs (STTK), which had a 13.0952381% increase in after-hours trading. The task is to determine if this movement is due to specific news events and summarize it in a Bloomberg/Reuters style. First, I need to process the input data. The stock performance is an after-hours up of approximately 13.1%, so I'll round that to 13.1% as per the instructions. The trading period is after-hours. Now, looking at the news events provided, there are six reasons listed, but some of them might be duplicates or have incomplete content. Let me go through each reason: Reason 1: H.C. Wainwright upgraded Shattuck Labs from Neutral to Buy with a $6 price target. The summary mentions this upgrade and the price target. The content also explains the analyst's reasoning, including the SL-325 program and potential risks. This seems relevant and bullish. Reason 2: Shares rose 13% after the upgrade. This is the same as Reason 1 but also provides more context about the company's lead product. However, the main driver here is still the upgrade. So this is another instance of the same event, which is bullish. Reason 3: Another upgrade to Buy from Neutral by H.C. Wainwright with a $6 target. Same as Reason 1, so redundant but still relevant. Reason 4: Mentions the upgrade on December 1, 2025, with a $6 target. Also notes other analysts' previous ratings. The company's focus on SL-325 is highlighted here. This is another mention of the upgrade, so again, bullish. Reason 5: Another mention of the upgrade by H.C. Wainwright, setting a $6 target. The content is cut off, but the title is the same as the others. So this is another instance of the same event. Reason 6: Price target announced by HC Wainwright at $6. The content is also cut off, but the summary is the same as the others. So all six reasons are essentially about the same event: H.C. Wainwright upgrading Shattuck Labs to Buy with a $6 price target. The stock's after-hours increase aligns with this upgrade, which is a positive development. The other details in the news, like the SL-325 program and the company's focus on biotech treatments, support the rationale behind the upgrade but are part of the same event. I need to check if there are any other factors mentioned that could influence the stock price, but from the input, all the news events point to the upgrade by H.C. Wainwright. There's no conflicting information or other events that might have caused a different movement. The user also wants the percentage rounded to two decimal places, so 13.0952381% becomes 13.10%. Wait, the example shows rounding to two decimal places and removing trailing zeros. For example, 4.230769% became 4.23%. So 13.0952381% would round to 13.10% (since the third decimal is 5, we round up the second decimal). But in the example, they kept two decimals. So 13.0952381% becomes 13.10%, but maybe the user wants it as 13.10% or 13.1%? Wait, the example shows 4.23% as the output. Let me check the example again. The input was 4.230769%, and the output was 4.23%. So they rounded to two decimal places without trailing zeros. So 13.0952381% is 13.10% when rounded to two decimals. But perhaps the user wants it as 13.10% or 13.1%? The example shows two decimal places. So I'll use 13.10%, but the example used 4.23% which is two decimals. However, in the example, the input was 4.230769%, which is 4.23% when rounded to two decimals. So 13.0952381% is 13.10% when rounded to two decimals. Wait, 13.0952381% is 13.0952381. The third decimal is 5, so the second decimal rounds up. So 13.