Abpro Holdings shares surge 54.28% intraday after Goldman Sachs discloses 6.8% stake via SEC filing.

think> Okay, let's tackle this user query. They want me to transform a given text into a concise news headline following specific rules. First, I need to make sure I understand all the requirements. The user provided an example, which helps. The key points are: company name unchanged, percentage rounded to two decimals, time period (premarket, intraday, after-hours), and a brief reason for the price movement. Also, the output should be in English. Looking at the input text: "Abpro Holdings盘中 intraday大涨54.27631579%, 1、高盛集团于2026年2月10日通过SEC Schedule 13G文件披露持有Abpro Holdings公司6.8%的股份，持股数量为196,537股。 2、Abpro Holdings是一家专注于开发下一代抗体疗法的生物技术公司，利用专有平台DiversImmune和MultiMab开发用于免疫肿瘤学和眼科学领域的抗体药物。 ，，）" First, the company name is Abpro Holdings. The percentage is 54.27631579%, which rounds to 54.28%. The time period is intraday. The reason for the price movement is the two points mentioned. Point 1: Goldman Sachs disclosed ownership via SEC Schedule 13G, holding 6.8% (196,537 shares). Point 2: Abpro is a biotech company focusing on next-gen antibody therapies using DiversImmune and MultiMab platforms in immuno-oncology and ophthalmology. The example output includes the company name, percentage, time period, and the reason. The example also structures the reason with key info. I need to follow that structure. So, the headline should start with Abpro Holdings, followed by the surge percentage and time period. Then the reason. The first reason is the SEC filing by Goldman Sachs. The second point is about the company's focus. However, the example only includes the first reason. Wait, in the example, the reason was the subsidiary signing a project. Here, the user provided two points. Should I include both? Looking at the example input, the user included the first reason (the subsidiary's project) and then added the company's focus. Similarly, here, the first reason is the SEC filing, and the second is the company's description. So maybe include both in the reason part. But the example only included the first point in the headline and the second in the next paragraph. Wait, in the example output, the first sentence includes the reason (subsidiary signing the project), and the next sentence is the company's focus. So perhaps here, the first sentence should mention the SEC filing by Goldman Sachs, and the second sentence the company's focus. But the user's example has the reason in the first sentence. The example's first sentence includes the reason for the price movement, and the second is additional info. So in this case, the price movement is due to Goldman Sachs disclosing ownership. The second point is more about the company's business, which might be part of the reason or additional context. But the user's example only included the immediate reason (the project agreement) in the first part. So perhaps here, the main reason for the price movement is the SEC filing by Goldman Sachs. The second point is more about the company's description. The example includes the company's focus in the second paragraph. So the structure would be: "Abpro Holdings surged 54.28% intraday, with Goldman Sachs disclosing 6.8% ownership via SEC Schedule 13G. The company specializes in next-gen antibody therapies using DiversImmune and MultiMab platforms for immuno-oncology and ophthalmology." But wait, the user's example includes both the reason and the company's focus in the output. The example's first sentence has the reason (subsidiary's project), and the second sentence is the company's focus. So maybe here, the first sentence is the reason (Goldman's disclosure), and the second sentence is the company's focus. The user's instruction says "brief reason for the price movement, retaining key information." So the key information here is the SEC filing by Goldman Sachs. The company's description is additional info but perhaps necessary to include as part of the reason? Or is it just background? Hmm. The example's first part is the reason, and the second part is the company's focus. So perhaps in this case, the reason is the SEC filing, and the company's focus is additional info. So the headline should start with the surge, then the reason (Goldman's ownership), followed by the company's focus. But the user's example includes the reason and then the company's focus. So following that structure. Therefore, the correct transformation would be: "Abpro Holdings surged 54.28.