DOSSIER · 13F-HR · Q1 2026
MASON STREET ADVISORS, LLC
MASON STREET's pension fund based in Omaha, NE — $1.0B in tracked AUM across 15 positions as of Q1 2026.
MS
MASON STREET·Omaha, NE·Pension Fund
CIK 0001167711 · last filed Mar 31, 2026
AI Analysis · Q1 2026 · Q1 2026
Comprehensive Analysis of Mason Street Advisors, LLC 13F Filing
Portfolio Overview
Mason Street Advisors, LLC reported a significant portfolio restructuring for the period ending September 30, 2025. The total portfolio value contracted sharply by 44.3%, declining from $854.51 million to $476.04 million. This reduction is not solely attributable to market performance but is primarily driven by a substantial rotation in asset allocation, specifically a massive exit from fixed inc...
Quarter at a glance — Q1 2026
Position-change comparison pending.
No quarter-over-quarter changes available.
Top 10 holdings
By portfolio weight as of Q1 2026.
Filing history
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