Filed: 5/7/2026ACC: 0001167711-26-000004
📋 What this filing means
MASON STREET ADVISORS, LLC filed this quarterly 13F‑HR report disclosing 15 equity positions with a total reported market value of $1.02B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
15
Positions
$1.02B
Total AUM (reported)
15.47M
Total Shares
Allocation by class
CORE US AGGBD ET$302.70M29.6%
STATE STREET SPD$296.96M29.0%
CORE S&P500 ETF$138.27M13.5%
CORE MSCI EAFE$64.37M6.3%
S&P500 EQL WGT$51.40M5.0%
MSCI USA VALUE$40.98M4.0%
MSCI INTL QUALTY$35.55M3.5%
Portfolio Concentration
Top 3$546.14M53.4%
4–10$384.26M37.6%
11–25$92.80M9.1%
Top 3 weight
53.4%
Top 10 weight
90.9%
Voting Authority Distribution
Total shares with voting rights: 15.47M
Sole
Full voting authority
15.47M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole0
Shared0
Other15
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings15
Rows:
ISHARES TR
DFNDShares3.05M
TypeSH
Market value$302.70M
29.58%
Sole
3.05M
Shared
0.00
None
0.00
ISHARES TR
DFNDShares211.68K
TypeSH
Market value$138.27M
13.51%
Sole
211.68K
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares4M
TypeSH
Market value$105.17M
10.28%
Sole
4M
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares1.56M
TypeSH
Market value$92.50M
9.04%
Sole
1.56M
Shared
0.00
None
0.00
ISHARES TR
DFNDShares711K
TypeSH
Market value$64.37M
6.29%
Sole
711K
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares1.33M
TypeSH
Market value$64.09M
6.26%
Sole
1.33M
Shared
0.00
None
0.00
INVESCO EXCHANGE TRADED FD T
DFNDShares267.82K
TypeSH
Market value$51.40M
5.02%
Sole
267.82K
Shared
0.00
None
0.00
ISHARES TR
DFNDShares288.20K
TypeSH
Market value$40.98M
4.01%
Sole
288.20K
Shared
0.00
None
0.00
ISHARES TR
DFNDShares768.93K
TypeSH
Market value$35.55M
3.47%
Sole
768.93K
Shared
0.00
None
0.00
SCHWAB STRATEGIC TR
DFNDShares1.65M
TypeSH
Market value$35.38M
3.46%
Sole
1.65M
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares348.68K
TypeSH
Market value$35.21M
3.44%
Sole
348.68K
Shared
0.00
None
0.00
J P MORGAN EXCHANGE TRADED F
DFNDShares486.34K
TypeSH
Market value$24.61M
2.41%
Sole
486.34K
Shared
0.00
None
0.00
DIMENSIONAL ETF TRUST
DFNDShares403.31K
TypeSH
Market value$21.29M
2.08%
Sole
403.31K
Shared
0.00
None
0.00
ABRDN ETFS
DFNDShares356.33K
TypeSH
Market value$8.66M
0.85%
Sole
356.33K
Shared
0.00
None
0.00
ISHARES INC
DFNDShares43.52K
TypeSH
Market value$3.04M
0.30%
Sole
43.52K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ISHARES TRDFND | CORE US AGGBD ET | 3.05M | SH | $302.70M 29.58% | 3.05M | 0.00 | 0.00 |
ISHARES TRDFND | CORE S&P500 ETF | 211.68K | SH | $138.27M 13.51% | 211.68K | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 4M | SH | $105.17M 10.28% | 4M | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 1.56M | SH | $92.50M 9.04% | 1.56M | 0.00 | 0.00 |
ISHARES TRDFND | CORE MSCI EAFE | 711K | SH | $64.37M 6.29% | 711K | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 1.33M | SH | $64.09M 6.26% | 1.33M | 0.00 | 0.00 |
INVESCO EXCHANGE TRADED FD TDFND | S&P500 EQL WGT | 267.82K | SH | $51.40M 5.02% | 267.82K | 0.00 | 0.00 |
ISHARES TRDFND | MSCI USA VALUE | 288.20K | SH | $40.98M 4.01% | 288.20K | 0.00 | 0.00 |
ISHARES TRDFND | MSCI INTL QUALTY | 768.93K | SH | $35.55M 3.47% | 768.93K | 0.00 | 0.00 |
SCHWAB STRATEGIC TRDFND | US REIT ETF | 1.65M | SH | $35.38M 3.46% | 1.65M | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 348.68K | SH | $35.21M 3.44% | 348.68K | 0.00 | 0.00 |
J P MORGAN EXCHANGE TRADED FDFND | ULTRA SHRT ETF | 486.34K | SH | $24.61M 2.41% | 486.34K | 0.00 | 0.00 |
DIMENSIONAL ETF TRUSTDFND | INTERNATNAL VAL | 403.31K | SH | $21.29M 2.08% | 403.31K | 0.00 | 0.00 |
ABRDN ETFSDFND | BBRG ALL COMD K1 | 356.33K | SH | $8.66M 0.85% | 356.33K | 0.00 | 0.00 |
ISHARES INCDFND | CORE MSCI EMKT | 43.52K | SH | $3.04M 0.30% | 43.52K | 0.00 | 0.00 |