FormDSignal
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Istari Master Fund LP launches indefinite hedge fund in Cayman Islands

New fund · Hedge fund · Pre-first close · Grand Cayman, Cayman Islands · Form D filed 2026-10-30 · sponsor: Istari · all Istari vehicles · Follow Istari →

Istari Master Fund LP, a new Cayman Islands hedge fund, filed for an indefinite offering under Regulation D exemption 3(c)(7) for institutional investors. The fund has not yet closed and lists no placement agent.

Note: Fund is pre-first-close with zero investors and zero sales to date; offering size is indefinite.

3(c)(7) — qualified purchasersPre-first closeFirst filing by this entityNeeds prime broker / custodyOffshore / parallel vehicleHedge fund

How this compares

  • Across 175 hedge fund sponsors with more than one launch on EDGAR, the median gap between consecutive funds is 7 months.
  • No earlier fund launch by this sponsor appears on EDGAR.

Computed from every Form D fund launch on EDGAR since late 2024, not sampled. Amounts are the stated offering size; indefinite offerings are excluded.

Istari on EDGAR

Earlier and related filings by the same issuer and sponsor. All Istari vehicles →

People on the filing

- Istari Fund GP LLCExecutive Officer
Jason Samuel LupatkinExecutive Officer
- Istari Capital Management LPPromoter

Signed by Jason Samuel Lupatkin, Managing Member of the General Partner.

Why now — by persona

  • Fund administrator:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
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  • Custodian / prime broker:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
  • Compliance consultant / RIA registration:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock

Filing contact

The issuer's phone number and address from the filing are shown to subscribers. See plans.