Hunterbrook publishes negative piece on Millrose (MRP); has disclosed short position in the past on MRP and Lennar (LEN)

Short-seller research of this kind, where the author discloses a position, sits in a distinct category from conventional sell-side initiation: the publisher is a party to the trade, and its prior form matters. This outlet has a track record of pairing investigative pieces with declared short exposure, and has previously been short both the target and its former parent, which frames the campaign as a continuing thesis rather than a fresh discovery. Millrose is a recent carve-out from Lennar, and spin-offs of this type have historically attracted scrutiny over the terms of the separation, related-party arrangements and the valuation of transferred assets, since the parent retains informational and structural advantages that outside holders price only over time. The questions that typically determine whether such a piece has legs are whether it contains new documentary evidence or repackages known disclosures, and whether the alleged issues touch cash flows or only optics. Episodes of this kind tend to see an initial gap driven by the position disclosure itself, with follow-through dependent on whether the auditor, the parent, or holders of the name respond. Worth noting is the Lennar read-across: a thesis spanning both names implies the claimed problem sits in the separation structure rather than in either entity alone.