Proteus Series Feeder Fund I, LLC - Nilsine Partners Private Access Fund

SEC Filing Record

Offering Amount

$4.2M

Strategy

Other

Exemption

06b

Date Filed

May 19, 2026

0002050687-26-000003

View on SEC EDGAR →

37A Read

The feeder structure pools capital into an unnamed master fund, a design that typically allows Nilsine Partners to manage separate LP classes or maintain operational flexibility across geographies or regulatory regimes; this amendment filing suggests the master arrangement already exists and this feeder is being refined or expanded rather than launched for the first time.

The five named GPs and absence of any prior EDGAR filings indicates Nilsine Partners is either new to SEC-registered fundraising or has operated below the reporting threshold until now; the 06b exemption (no public solicitation) combined with a $4M target signals a small, relationship-driven manager building initial institutional credibility rather than a broad-based raise.

Filing an amendment in May 2026 during a period of LP reallocation toward mid-market and lower-capital vehicles aligns with macro conditions favoring smaller, nimble managers; the amendment status suggests Nilsine refined terms or investor composition after an initial filing, indicating ongoing market dialogue.

Before committing, verify whether the master fund has established performance history, audited financials, or a defined investment mandate—feeder structures can obscure the actual strategy and GP incentive alignment, and a $4M target with five GPs warrants clarity on carried interest waterfall and whether any GP has key-man provisions tied to specific individuals.

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Principals

General Partners & Executives

Jason Brown Eric Knauss Ryan Laughon Molly Herendeen Anya Janeway