FormDSignal
70

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, 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 engaged.

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 →

Registered adviser

name match

SUNSTONE PARTNERS (SUNSTONE PARTNERS MANAGEMENT, LLC)

Registration
SEC-registered adviser · since 2019-09-20
Regulatory AUM
$1.6B
Employees
39
Private funds on Form ADV
Yes
Office
San Mateo, CA

Website and main-office phone from Form ADV. Subscribe to unlock

Incumbent service providers

Schedule D for this adviser has not been read yet; it is queued.

Other Form D filings by this adviser

1 other filing on EDGAR under this adviser, with size, strategy and date. Subscribe to unlock

People on the filing

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

[email protected] · observed Work emails for the people on the filing, labelled by confidence — subscribers

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

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