Wells Fargo 8-K reports database 2015 - 2019

We create a dataset which focuses on 8-K reports for the years 2015 - 2019 for Wells Fargo. An 8-K is a report of unscheduled material events or corporate changes at a company that could be of importance to the shareholders or the Securities and Exchange Commission (SEC). Also known as a Form 8K, the report notifies the public of events, including acquisitions, bankruptcy, the resignation of directors, or changes in the fiscal year. We have compiled this dataset, thanks to SEC's EDGAR tool. The texts were pre-processed by applying a classical pipeline : - removal of non-alphanumeric characters; - lemmatisation; - removal of rare words and stopwords: we obtain a dictionary of 4377 distinct roots for the whole corpus. This company published 672 reports for the years 2015 and 2019. The file is a list of two items. The first item is composed of all information about the 8K and extracted texts. The second item is the document-term matrix with the pre-processed texts with 672 texts and 4377 words. An example of 8-K can be found here https://www.sec.gov/files/form8-k.pdf.本数据集聚焦富国银行（Wells Fargo）2015年至2019年间的8-K报表（Form 8-K）。8-K报表是用于向股东或美国证券交易委员会（SEC）披露公司突发性重大事件或企业变更的官方文件，亦称Form 8-K。此类报表需向公众通报各类事件，包括收购、破产、董事辞职或会计年度变更等。 本数据集依托美国证券交易委员会的EDGAR系统构建完成。 我们采用经典预处理流程对文本进行处理： - 移除非字母数字字符； - 词形还原； - 移除低频词与停用词：最终得到覆盖全语料的4377个不同词干词典。 富国银行在2015至2019年间共发布672份8-K报表。 该数据集文件为包含两个元素的列表：第一个元素涵盖所有与8-K报表相关的信息及提取的原始文本；第二个元素为基于预处理后文本构建的文档-词项矩阵，共包含672条文本与4377个词项。 可通过以下链接获取8-K报表示例：https://www.sec.gov/files/form8-k.pdf。