MASON STREET ADVISORS, LLC — 13F Holdings

2026 Q1  ·  17 Positions

2026 Q1 Portfolio Activity

In 2026 Q1, MASON STREET ADVISORS, LLC maintained a portfolio of 17 distinct positions. The most significant new addition was ISHARES TR, now representing 4.01% of the total fund value. They heavily accumulated shares in ISHARES TR, increasing the position by 12373.6%. Conversely, MASON STREET ADVISORS, LLC completely exited their position in ISHARES TR.
Position History hover any row below to update
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MASON STREET ADVISORS, LLC Milwaukee, WI RIA / Insurance Asset Manager AUM $1,023M
PCA Score Concentration Risk
Risk ENB
Total Positions
17
Quarter
2026 Q1
Top Holding
AGG (29.6%)
Top 10 Concentration
90.9%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-17 of 17

MASON STREET ADVISORS, LLC Full Holdings List — 2026 Q1

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
AGG
ISHARES TR
ETF 29.58% 30.54% #1
Prev: #1
6.5
-57,967 -1.9%
P
S
3,049,263 $302,700,338 2017 Q1 13F Filing 2026-03-31 2026-05-07
IVV
ISHARES TR
ETF 13.51% 14.21% #2
Prev: #2
6.0
888 0.4%
P
S
211,681 $138,272,146 2014 Q1 13F Filing 2026-03-31 2026-05-07
SPTL
SPDR SERIES TRU...
ETF 10.28% 10.41% #3
Prev: #3
5.5
1,040 0.0%
P
S
3,998,720 $105,166,336 2024 Q2 13F Filing 2026-03-31 2026-05-07
SPMD
SPDR SERIES TRU...
ETF 9.04% 9.04% #4
Prev: #4
4.6
-25,421 -1.6%
P
S
1,561,969 $92,499,804 2024 Q2 13F Filing 2026-03-31 2026-05-07
IEFA
ISHARES TR
ETF 6.29% 0.04% #5 10
Prev: #15
6.0
705,297 12373.6%
P
S
710,997 $64,366,558 2019 Q4 13F Filing 2026-03-31 2026-05-07
SPSM
SPDR SERIES TRU...
ETF 6.26% 5.97% #6 1
Prev: #5
3.0
32,543 2.5%
P
S
1,326,423 $64,092,759 2024 Q1 13F Filing 2026-03-31 2026-05-07
RSP
INVESCO EXCHANG...
Unknown 5.02% 4.89% #7
Prev: #7
2.5
8,390 3.2%
P
S
267,820 $51,400,014 2025 Q1 13F Filing 2026-03-31 2026-05-07
VLUE
ISHARES TR
ETF 4.01% #8
Prev: #—
5.1
288,200
NEW
288,200 $40,979,158 2025 Q3 13F Filing 2026-03-31 2026-05-07
IQLT
ISHARES TR
Bond/Debt 3.47% 3.35% #9 2
Prev: #11
1.9
20,690 2.8%
P
S
768,930 $35,547,634 2025 Q2 13F Filing 2026-03-31 2026-05-07
SCHH
SCHWAB STRATEGI...
ETF 3.46% 3.52% #10
Prev: #10
1.9
-66,960 -3.9%
P
S
1,646,125 $35,375,226 2024 Q2 13F Filing 2026-03-31 2026-05-07
RWR
SPDR SERIES TRU...
Unknown 3.44% 3.54% #11 2
Prev: #9
1.9
-17,880 -4.9%
P
S
348,675 $35,205,715 2024 Q2 13F Filing 2026-03-31 2026-05-07
JPST
J P MORGAN EXCH...
ETF 2.41% 2.39% #12
Prev: #12
1.5
5,601 1.2%
P
S
486,336 $24,613,465 2020 Q4 13F Filing 2026-03-31 2026-05-07
DFIV
DIMENSIONAL ETF...
Bond/Debt 2.08% 1.93% #13
Prev: #13
1.3
9,950 2.5%
P
S
403,315 $21,286,966 2025 Q2 13F Filing 2026-03-31 2026-05-07
BCI
ABRDN ETFS
ETF 0.85% 0.65% #14
Prev: #14
2.3
18,620 5.5%
P
S
356,335 $8,655,377 2024 Q2 13F Filing 2026-03-31 2026-05-07
IEMG
ISHARES INC
ETF 0.30% #15
Prev: #—
3.6
43,520
NEW
43,520 $3,035,520 2016 Q3 13F Filing 2026-03-31 2026-05-07
IJH
ISHARES TR
ETF 0.00% 3.90%
Sold All 😨
(Was: #8)
0.0
-289,860 -100.0%
CLOSED
$— 2013 Q3 13F Filing 2026-03-31 2026-05-07
IJR
ISHARES TR
ETF 0.00% 5.62%
Sold All 😨
(Was: #6)
0.0
-639,005 -100.0%
CLOSED
$— 2007 Q2 13F Filing 2026-03-31 2026-05-07
Showing 1-17 of 17 holdings

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