Filed: 2/4/2026ACC: 0001167711-26-000001
📋 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)
15.43M
Total Shares
Allocation by class
CORE US AGGBD ET$310.35M30.5%
STATE STREET SPD$294.38M29.0%
CORE S&P500 ETF$144.38M14.2%
CORE S&P SCP ETF$57.17M5.6%
S&P500 EQL WGT$49.70M4.9%
CORE S&P MCP ETF$39.63M3.9%
US REIT ETF$35.79M3.5%
Portfolio Concentration
Top 3$560.55M55.2%
4–10$370.84M36.5%
11–25$84.94M8.4%
Top 3 weight
55.2%
Top 10 weight
91.6%
Voting Authority Distribution
Total shares with voting rights: 15.43M
Sole
Full voting authority
15.43M
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
DFNDShares3.11M
TypeSH
Market value$310.35M
30.54%
Sole
3.11M
Shared
0.00
None
0.00
ISHARES TR
DFNDShares210.79K
TypeSH
Market value$144.38M
14.21%
Sole
210.79K
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares4M
TypeSH
Market value$105.82M
10.41%
Sole
4M
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares1.59M
TypeSH
Market value$91.93M
9.04%
Sole
1.59M
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares1.29M
TypeSH
Market value$60.63M
5.97%
Sole
1.29M
Shared
0.00
None
0.00
ISHARES TR
DFNDShares639K
TypeSH
Market value$57.17M
5.62%
Sole
639K
Shared
0.00
None
0.00
INVESCO EXCHANGE TRADED FD T
DFNDShares259.43K
TypeSH
Market value$49.70M
4.89%
Sole
259.43K
Shared
0.00
None
0.00
ISHARES TR
DFNDShares289.86K
TypeSH
Market value$39.63M
3.90%
Sole
289.86K
Shared
0.00
None
0.00
SPDR SERIES TRUST
DFNDShares366.56K
TypeSH
Market value$36.01M
3.54%
Sole
366.56K
Shared
0.00
None
0.00
SCHWAB STRATEGIC TR
DFNDShares1.71M
TypeSH
Market value$35.79M
3.52%
Sole
1.71M
Shared
0.00
None
0.00
ISHARES TR
DFNDShares748.24K
TypeSH
Market value$34.01M
3.35%
Sole
748.24K
Shared
0.00
None
0.00
J P MORGAN EXCHANGE TRADED F
DFNDShares480.74K
TypeSH
Market value$24.32M
2.39%
Sole
480.74K
Shared
0.00
None
0.00
DIMENSIONAL ETF TRUST
DFNDShares393.37K
TypeSH
Market value$19.63M
1.93%
Sole
393.37K
Shared
0.00
None
0.00
ABRDN ETFS
DFNDShares337.71K
TypeSH
Market value$6.60M
0.65%
Sole
337.71K
Shared
0.00
None
0.00
ISHARES TR
DFNDShares5.70K
TypeSH
Market value$383.2K
0.04%
Sole
5.70K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ISHARES TRDFND | CORE US AGGBD ET | 3.11M | SH | $310.35M 30.54% | 3.11M | 0.00 | 0.00 |
ISHARES TRDFND | CORE S&P500 ETF | 210.79K | SH | $144.38M 14.21% | 210.79K | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 4M | SH | $105.82M 10.41% | 4M | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 1.59M | SH | $91.93M 9.04% | 1.59M | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 1.29M | SH | $60.63M 5.97% | 1.29M | 0.00 | 0.00 |
ISHARES TRDFND | CORE S&P SCP ETF | 639K | SH | $57.17M 5.62% | 639K | 0.00 | 0.00 |
INVESCO EXCHANGE TRADED FD TDFND | S&P500 EQL WGT | 259.43K | SH | $49.70M 4.89% | 259.43K | 0.00 | 0.00 |
ISHARES TRDFND | CORE S&P MCP ETF | 289.86K | SH | $39.63M 3.90% | 289.86K | 0.00 | 0.00 |
SPDR SERIES TRUSTDFND | STATE STREET SPD | 366.56K | SH | $36.01M 3.54% | 366.56K | 0.00 | 0.00 |
SCHWAB STRATEGIC TRDFND | US REIT ETF | 1.71M | SH | $35.79M 3.52% | 1.71M | 0.00 | 0.00 |
ISHARES TRDFND | MSCI INTL QUALTY | 748.24K | SH | $34.01M 3.35% | 748.24K | 0.00 | 0.00 |
J P MORGAN EXCHANGE TRADED FDFND | ULTRA SHRT ETF | 480.74K | SH | $24.32M 2.39% | 480.74K | 0.00 | 0.00 |
DIMENSIONAL ETF TRUSTDFND | INTERNATNAL VAL | 393.37K | SH | $19.63M 1.93% | 393.37K | 0.00 | 0.00 |
ABRDN ETFSDFND | BBRG ALL COMD K1 | 337.71K | SH | $6.60M 0.65% | 337.71K | 0.00 | 0.00 |
ISHARES TRDFND | CORE MSCI EAFE | 5.70K | SH | $383.2K 0.04% | 5.70K | 0.00 | 0.00 |