Latest filing published 13 Oct 2026 for WD 40 CO. Read the official filing
Based on 2 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Steven A. Brass, listed as chief executive, appears in our data through filings on WD 40 Co shares, published by SEC (Form 4). We count 17 filings; the first trade dates from 12 October 2021 and the latest from 8 October 2026.
The open-market record is one-sided, with 5 purchases worth €439k and not one sale. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 12 share grants.
In size, the median ticket on the buying side is €93k. 3 out of 5 purchases came within 30 days of a purchase by at least one other insider of the same company. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.
The latest filing, published on 13 October 2026, reports a share grant in WD 40 Co. The latest purchase dates back some time: it was published 354 days ago, on 29 October 2025. The median gap between a trade and its publication by SEC (Form 4) is 1 day. For comparison, the SEC allows two business days to file a Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
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