FormDSignal
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Sunstone Partners IV launches indefinite private equity fund from San Mateo

New fund · Private equity / buyout · Pre-first close · SAN MATEO, CA · Form D filed 2026-10-15 · sponsor: Sunstone Partners · all Sunstone vehicles

Sunstone Partners IV-A, LP, a Delaware limited partnership, filed to raise an indefinite amount for a private equity fund. The fund is pre-first-close with no investors yet and no placement agent listed.

Pre-first closeFirst filing by this entityrepeat_fund_numeralPrivate equity / buyout

How this compares

  • Across 490 private equity / buyout sponsors with more than one launch on EDGAR, the median gap between consecutive funds is 5 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.

Sunstone Partners on EDGAR

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

People on the filing

Gustavo AlberelliExecutive Officer, Promoter
Michael BiggeeExecutive Officer, Promoter
Arneek MultaniExecutive Officer, Promoter

Signed by Michael Biggee, Managing Director of the GP of the Issuer.

Why now — by persona

  • Fund administrator:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
  • Fund audit & tax:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
  • Fund-formation counsel: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.