Private company
Who owns 17 Hartwell JV LLC (17 Hartwell Avenue)
One company in the researched set discloses a stake in 17 Hartwell JV LLC (17 Hartwell Avenue), worth $17m between them. 17 Hartwell JV LLC (17 Hartwell Avenue) is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
What this is
A single asset joint venture developing about 312 apartments across roughly 290,100 square feet on the former office site at 17 Hartwell Avenue in Lexington, Massachusetts, financed by a 98.7 million dollar construction loan taken in June 2025 and described only in BXP's own SEC filings.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- BXP, Inc. (formerly Boston Properties), as of 30 Jun 2026. 20% joint venture interest in 17 Hartwell Avenue, Lexington, MA. Carrying value $16,650 thousand at 6/30/2026 vs $10,567 thousand at 12/31/2025. source
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of 17 Hartwell JV LLC (17 Hartwell Avenue) where a holder stated one, and are missing where no holder did.