Arbiter Partners QP, LP
New Form D on file · 2026-09-18 · the record
What the record says
A hollow marker is an amendment (Form D/A); a solid one is an original Form D. The larger marker is the filing this page is about.
Trailing twelve months. 681 filings in Investing, totalled by week. The dot is this raise, $718M, on the same scale — one filing against the whole group's total, so it sits low by construction.
Company officers on record
Paul Isaac is named as Executive Officer on the Form D that Arbiter Partners QP, LP filed with the SEC on 18 September 2026, the only person that filing names.
1 person named on the filing — 1 holding an executive role.
Named as of the 2026-09-18 filing. Titles and locations are exactly as the filing states — not independently confirmed elsewhere.
The full profile
Source Check, INVEST, RECRUIT and Press Requests on Arbiter Partners QP, LP
- Source Check — verify Joshua Musher's other claims against the registers that hold them.
- INVEST — size up this raise on the figures the filing states.
- RECRUIT — see who is already on the team.
- Press Requests — connect with Joshua Musher for a story.
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Sourced from the filing index on sec.gov.