Article summary — original

Media Coverage of Grizzly Research Investigations and Regulatory Actions Against Trustpilot A compilation of media reports documents short-seller allegations and regulatory penalties faced by consumer review platform Trustpilot Group PLC, as well as coverage of short seller Siegfried Eggert. Trustpilot shares dropped significantly in December 2025 following a short report by Grizzly Research alleging 'mafia-style' extortion practices. Italian regulators fined Trustpilot $4.6 million in March 2026 for misleading consumers and failing to adequately verify reviews. German media profiled short seller Siegfried Eggert in May 2026 regarding a position against prosthetics manufacturer Ottobock. Short Report and Allegations Against Trustpilot In December 2025, Grizzly Research published an investigation targeting Trustpilot Group PLC, accusing the review platform of 'mafia-style' extortion practices. Financial media outlets, including the Financial Times, Bloomberg, Reuters, The Telegraph, and The Times, reported that the short seller's claims sparked an immediate slide in Trustpilot's share price, with the International Business Times reporting a single-day market value loss of £243 million. Italian Regulatory Fine In March 2026, Italian regulators imposed a $4.6 million fine on Trustpilot. According to reports by Reuters, The Times, and Business Reporter, the penalty was issued over findings that the platform misled consumers by failing to adequately verify reviews, leading to further declines in the company's shares. Profile on Siegfried Eggert In May 2026, Frankfurter Allgemeine published a report profiling Siegfried Eggert and his short bet against German prosthetics manufacturer Ottobock.

Article summary — zh

Grizzly Research汇总媒体对Trustpilot调查与监管处罚的相关报道 做空机构Grizzly Research发布了媒体对其调查评价平台Trustpilot的报道汇总，内容涵盖对其“黑手党式勒索”指控引发的股价暴跌，以及意大利监管机构随后开出的罚单。 2025年12月，Grizzly Research做空Trustpilot并指控其存在“黑手党式勒索”，引发路透社、彭博社、《金融时报》等多家媒体报道，导致Trustpilot股价暴跌、单日市值缩水2.43亿英镑。 2026年3月，Trustpilot因误导消费者及未能充分核实平台评价，被意大利监管机构处以460万美元罚款。

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**Frankfurter Allgemeine**, May 24, 2026:  [Der Mann, der gegen Ottobock wettet](https://www.faz.net/aktuell/finanzen/spekulation-gegen-prothesenhersteller-siegfried-eggert-ist-der-mann-der-gegen-ottobock-wettet-accg-200859817.html) **Business Reporter**, March 23, 2026: [Italy fines review platform Trustpilot $4.6 million for misleading consumers; shares slip](https://www.business-reporter.co.uk/news/italy-fines-review-platform-trustpilot-46-million-for-misleading-consumers-shares-slip-14306) **Reuters**, March 23, 2026: *UK’s Trustpilot fined $4.6 million by Italian regulator for misleading consumers* **The Times**, March 23, 2026: [Trustpilot fined in Italy for failing to adequately verify reviews](https://www.thetimes.com/business/technology/article/trustpilot-fined-in-italy-for-failing-to-verify-reviews-l8wkw3595?eafs_enabled=false) **International Business Times UK**, December 10, 2025: [Why Trustpilot Lost £243M in One Day: The ‘Mafia-Style’ Extortion Allegations Explained](https://www.ibtimes.co.uk/why-trustpilot-lost-243m-one-day-mafia-style-extortion-allegations-explained-1764095) **The Telegraph**, December 4, 2025: [Trustpilot accused of running ‘mafia-style extortion racket’](https://www.telegraph.co.uk/business/2025/12/04/trustpilot-accused-running-mafia-style-extortion-racket/) **The Times**, December 4, 2025: [Trustpilot shares hit by ‘mafia-style extortion’ claims](https://www.thetimes.com/business/companies-markets/article/trustpilot-shares-dive-amid-100m-mafia-style-extortion-claims-l6z3kb3c8) **Financial Times**, December 4, 2025: [Trustpilot shares plummet after short seller alleges ‘mafia-style’ practices](https://www.ft.com/content/5b0765ef-5a81-4388-8d0f-9f3cd2e04c3d?syn-25a6b1a6=1) **Bloomberg**, December 4, 2025: *Trustpilot Plunges as Short Seller Targets Consumer-Review Firm* **Reuters**, December 4, 2025: [Review platform Trustpilot’s shares slump after Grizzly Research shorts stock](https://www.reuters.com/business/review-platform-trustpilots-shares-slump-after-grizzly-research-shorts-stock-2025-12-04/)