LONDON, Nov 19 (Reuters) - The hedge fund short selling partnership of Gotham City Research and General Industrial Partners (GIP) said on Wednesday it has taken a short position in the real estate investment trust, Iron Mountain .

The company did not immediately respond for a request for comment.

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Daniel Yu and Cyrus de Weck said Iron Mountain's leveraged investments into data centers do not match what the firm has available long-term to spend.

As of 15:55 GMT the Reit shareprice was down 5%.

The team is known for their research on SES Imagotag, now Vusion Group and Spanish medical company, Grifols.

https://www.reuters.com/markets/us/iron-mountain-reit-targeted-by-short-sellers-gotham-city-research-gip-2025-11-19/