Three SEC filing feeds as structured data: Form D raises, 13F position changes, and 8-K material events

SEC EDGAR 是免费、公开且持续更新的。但它是一个逐份文件查询的界面：适合查找单家公司，但对于每周监控整个类别的申报文件来说效率很低。我构建了三个 Apify Actors，将三个 EDGAR 信息源转换为干净、结构化的数据行，你可以对其进行调度、过滤，并导入电子表格或数据库。披露：这些工具是我在 AI 辅助下构建的，并在 Apify 上出售其运行服务。每行返回数据的价格为 0.003 美元。

1. Form D: companies that just raised

A Form D is filed when a company sells securities in a private placement. It is one of the earliest public signals that a startup or fund just raised money, and EDGAR receives new ones every day. The SEC Form D Filings Actor returns newly filed Form D placements with the amount, industry, state, and executives named in the filing. Use it for: tracking newly funded companies in an industry or state, and building a weekly list of recent raises instead of searching EDGAR by hand. Limits: a Form D reports a sale of securities. It does not tell you the valuation, the investors in every case, or whether the full amount was placed. Check the filing itself before acting on a row. https://apify.com/groundplanes/sec-form-d-filings

2. 13F: what large managers bought and sold

机构经理每季度提交 13F 表格，列出其美国股票持仓。原始申报文件显示的是持仓情况而非变动，因此要了解经理的实际操作，意味着你需要自己对比两个季度的数据。SEC 13F Holdings Changes Actor 会比较经理最近的两份 13F 申报文件，并返回每一项持仓变动，标注为 NEW（新增）、ADDED（增持）、TRIMMED（减持）或 SOLD_OUT（清仓），并附带股份、价值和投资组合权重。用途：跟踪观察名单中经理的持仓变动，并在每个申报季筛选新增或退出的头寸。限制：13F 申报是季度性的，且交易数据存在滞后，仅涵盖多头股票头寸，不完全包含空头或期权。变动行仅为申报记录，不构成投资建议。https://apify.com/groundplanes/sec-13f-holdings-changes

3. 8-K: material events, filtered by item

A Form 8-K reports a material event at a public company: a bankruptcy, a cybersecurity incident, an impairment, a change of accountant, a change of executives. The events that matter to you are a small slice of the daily filing volume. The SEC Form 8-K Material Event Radar reads the EDGAR daily index and returns 8-K filings with cleaned item text. You can filter by item code, date, ticker or CIK, and keyword. Item codes covered include 1.03 (bankruptcy), 1.05 (cybersecurity incidents), 2.06 (impairments), 4.01 (accountant changes), and 5.02 (executive changes). Use it for: a daily or weekly digest of one event type across all filers, instead of reading every 8-K headline. Limits: the Actor reports what the filing says. An item code tells you the category the company filed under; the cleaned text is where the substance is, and the source filing is the record to rely on. https://apify.com/groundplanes/sec-edgar-8k-material-event-radar

The pattern

所有这三个工具都遵循我为此目录其余部分设定的相同规则：仅使用来自 SEC EDGAR 的公开源数据；输出结构化 JSON，当运行达到上限时会说明计数（受限运行会明确提示，不会静默截断）；可调度，因此每周检查只需几分钟而不是一下午；状态报告会标记部分结果，而不是将其标记为完成。如果你今天还在手动查看这三个信息源中的任何一个，那么一次调度运行是测试自动化是否值得的最廉价方式。发现问题或需要某个字段？请在 Actor 页面的“Issues”选项卡中提交问题；我们会快速响应。