Mason Street Advisors, LLC
Investment Portfolio & 13F Holdings Analysis
About
MASON STREET ADVISORS, LLC is an institutional investment manager that filed its latest Form 13F for 2025Q1, reporting 13 holdings worth $0.8 billion. Form 13F filings provide transparency into the equity holdings of institutional investment managers with over $100 million in assets under management. This page displays the most recent portfolio holdings, allowing investors to track position changes, new investments, and portfolio composition.
AI_NATIVE detailed information: This accession holds the following tickers:[ null, "SCHH", null, "IJH", null, "IJR", "IVV", "IEFA", null, null, null, null, "RSP" ]
Filing Details
13F-HR • 2025-03-31
Filing Details
13F-HR • 2025-03-31- Report Date
- 2025-03-31
- Filing Date
- 2025-05-14
- Total Holdings
- 13
- Total Value
- 786136410
- Accession Number
- 0001085146-25-003071
- Form Type
- 13F-HR
- Manager Name
- Mason-Street-Advisors
Data Enrichment
46% identified6 identified7 unidentified
Holdings
13 positions • $786.1M total value
Manager:
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464287226
Shares:2.5M
Value:$251.8M
% of Portfolio:32.0% ($251.8M/$786.1M)
78464A664
Shares:3.7M
Value:$100.7M
% of Portfolio:12.8% ($100.7M/$786.1M)
78464A847
Shares:927.6K
Value:$47.5M
% of Portfolio:6.0% ($47.5M/$786.1M)
78468R853
Shares:853.5K
Value:$34.8M
% of Portfolio:4.4% ($34.8M/$786.1M)
78464A607
Shares:320.5K
Value:$31.8M
% of Portfolio:4.0% ($31.8M/$786.1M)
46641Q837
Shares:216.7K
Value:$11.0M
% of Portfolio:1.4% ($11.0M/$786.1M)
003261104
Shares:304.9K
Value:$6.5M
% of Portfolio:0.8% ($6.5M/$786.1M)
Instrument | Shares | Other Manager | Value | % of Portfolio | ||
---|---|---|---|---|---|---|
(cusip464287226)✕ | 2.5M | All Managers (Combined) | $251.8M | 32.0% ($251.8M/$786.1M) | ||
291.6K | All Managers (Combined) | $163.8M | 20.8% ($163.8M/$786.1M) | |||
(cusip78464A664)✕ | 3.7M | YoY NEW(+3.7M) | All Managers (Combined) | $100.7M | 12.8% ($100.7M/$786.1M) | YoY NEW(+$100.7M) |
899.8K | All Managers (Combined) | $68.1M | 8.7% ($68.1M/$786.1M) | |||
(cusip78464A847)✕ | 927.6K | YoY NEW(+927.6K) | All Managers (Combined) | $47.5M | 6.0% ($47.5M/$786.1M) | YoY NEW(+$47.5M) |
(cusip78468R853)✕ | 853.5K | All Managers (Combined) | $34.8M | 4.4% ($34.8M/$786.1M) | ||
1.5M | QoQ 0.00% (+0)YoY NEW(+1.5M) | All Managers (Combined) | $32.0M | 4.1% ($32.0M/$786.1M) | YoY NEW(+$32.0M) | |
(cusip78464A607)✕ | 320.5K | QoQ 0.00% (+0)YoY NEW(+320.5K) | All Managers (Combined) | $31.8M | 4.0% ($31.8M/$786.1M) | YoY NEW(+$31.8M) |
133.1K | QoQ NEW(+133.1K) YoY NEW(+133.1K) | All Managers (Combined) | $23.1M | 2.9% ($23.1M/$786.1M) | QoQ NEW(+$23.1M) YoY NEW(+$23.1M) | |
(cusip46641Q837)✕ | 216.7K | All Managers (Combined) | $11.0M | 1.4% ($11.0M/$786.1M) | ||
168.8K | All Managers (Combined) | $9.8M | 1.3% ($9.8M/$786.1M) | |||
(cusip003261104)✕ | 304.9K | QoQ 0.00% (+0)YoY NEW(+304.9K) | All Managers (Combined) | $6.5M | 0.8% ($6.5M/$786.1M) | YoY NEW(+$6.5M) |
51.6K | All Managers (Combined) | $5.4M | 0.7% ($5.4M/$786.1M) |