No insider purchase over the last 90 days. The latest was filed 04 Dec 2025.
Rostra AG is a listed company. Filings by its managers are published through BaFin. 5 insiders have disclosed 5 filings since 18 October 2025.
Not one open-market sale was filed. On the buying side, 1 insider reported 1 purchase totalling €19k. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. One trade stands out by size: a purchase of €19k from Rostra Holdings Pte. Ltd., disclosed on 4 December 2025.
With 5 filings in twelve months, the company is in line with the median of 5 filings across the 287 companies we follow on the same exchange. Our records for Rostra AG go back to 2025, with 1 purchase and no sales on the open market in total.
The most recent open-market purchase was published on 4 December 2025, 317 days ago. Filings reach the BaFin feed a median of 2 days after the trade. The regulation allows three business days to notify a trade (MAR article 19).
Source: insider filings from BaFin. Past trades are no guide to future returns.
Transparent value + quality ranking, distinct from the insider signal.
FY ended December 2025 · cache
5 of 5 declarations
Rostra AG is a German-listed company traded on Xetra/Frankfurt (DAX/MDAX/SDAX), with its headquarters in Düsseldorf, Germany. The group currently has the profile of an investment and holding vehicle rather than a conventional operating industrial company, which makes it difficult to place in a single traditional sector bucket. Its present strategy is centered on building a portfolio of participations, with a recent emphasis on precious-metals-related activity and strategic financial investments. Based on disclosures published by the company, the most visible holdings include NMBZ Holdings Limited in Zimbabwe, Sigma Precious Metals DMCC in Dubai, and Divcorp Investments Ltd., with the latter considered in connection with a combined cash and in-kind capital increase. Rostra AG also maintains a financial reporting archive spanning multiple years, indicating a long-standing presence on the German market, even though its structure and strategy have evolved materially over time. The company was formerly known as Decheng Technology AG and changed its name to Rostra AG in August 2024, a clear sign of a broader corporate repositioning and refreshed investor narrative. Its registered business address is Fritz-Vomfelde-Straße 34 in Düsseldorf, reinforcing its German domicile and operational base. From a governance and market-transparency standpoint, Rostra AG publishes director dealings notifications under Article 19 of the MAR, in line with the rules applicable to managerial transactions on the regulated German market. Recent milestones point to an active expansion phase: during 2025, the company announced several acquisitions of stakes, including investments in NMBZ Holdings Limited and Sigma Precious Metals DMCC, and in February 2026 it disclosed the successful completion of a combined cash capital increase and contribution in kind, with the new shares admitted to trading on the Frankfurt Stock Exchange. For international investors, Rostra AG therefore reads as a speculative small-cap investment story, with valuation and execution heavily dependent on acquisition delivery, asset quality, and the success of its capital-allocation strategy.