13F-HR filed by MASON STREET ADVISORS, LLC

MASON STREET ADVISORS, LLC filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-07, with 15 holding rows worth $1,023,197,016.

Accession: 0001167711-26-000004
Filer: CIK 1167711
Filed: 2026-05-07
Accepted by EDGAR: acceptance time not in the bulk data set
Ingested: 2026-10-06 09:58:43 UTC
Source: SEC quarterly data set

Original filing

13F report for Q1 2026

A combination report, 15 entries on the cover page, a total value of $1,023,197,016 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,023,197,016 with VALUE read as dollars as filed, 13F file number 028-10206. The quarter's positions are built on this report. The resolved quarter.

Other managers

reports for this filerabrdn Investments Ltd028-14936
reports for this filerALLSPRING GLOBAL INVESTMENTS, LLC028-04413
reports for this filerAMERICAN CENTURY INVESTMENT MANAGEMENT INC028-01091
reports for this filerBLACKROCK ADVISORS LLC028-04295
reports for this filerBoston Partners028-12484
reports for this filerDODGE & COX028-00400
reports for this filerDRIEHAUS CAPITAL MANAGEMENT LLC028-04207
reports for this filerEARNEST PARTNERS LLC028-05269
reports for this filerFEDERATED INVESTMENT MANAGEMENT CO028-04377
reports for this filerFIAM LLC028-12282
reports for this filerFRANKLIN MUTUAL ADVISERS LLC028-06154
reports for this filerFRANKLIN RESOURCES INC028-00734
reports for this filerInvesco Advisers, Inc.028-00255
reports for this filerJ.P. Morgan Investment Management Inc.028-11937
reports for this filerKAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC028-05792
reports for this filerLOOMIS SAYLES & CO L P028-00398
reports for this filerMASSACHUSETTS FINANCIAL SERVICES CO /MA/028-04968
reports for this filerNeuberger Berman Investment Advisers LLC028-17085
reports for this filerNorthern Trust Investments, Inc028-10487
reports for this filerPACIFIC INVESTMENT MANAGEMENT CO LLC028-10952
reports for this filerT. Rowe Price Investment Management, Inc.028-22690
reports for this filerVaughan Nelson Investment Management, L.P.028-05840
reports for this filerWELLINGTON MANAGEMENT GROUP LLP028-04557
reports for this filerPRICE T ROWE ASSOCIATES INC /MD/028-00115

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filed	CUSIP	Class	Amount	Value	Value read as
iShares Core US Aggregate Bond ETF	464287226	SHS	3,049,263	$302,700,338	dollars as filed
ISHARES TR CORE S&P 500 ETF	464287200	SHS	211,681	$138,272,146	dollars as filed
SPDR Portfolio Long Term Treasury ETF	78464A664	SHS	3,998,720	$105,166,336	dollars as filed
SPDR Portfolio S&P 400 Mid Cap ETF	78464A847	SHS	1,561,969	$92,499,804	dollars as filed
iShares Core MSCI EAFE ETF	46432F842	SHS	710,997	$64,366,558	dollars as filed
SPDR Portfolio S&P 600 Small Cap ETF	78468R853	SHS	1,326,423	$64,092,759	dollars as filed
INVESCO EXCHANGE-TRADED FD TR S&P 500 EQUAL WEIGHT ETF	46137V357	COM	267,820	$51,400,014	dollars as filed
ISHARES TR	46432F388	MSCI USA VALUE	288,200	$40,979,158	dollars as filed
ISHARES TR	46434V456	MSCI INTL QUALTY	768,930	$35,547,634	dollars as filed
Schwab US REIT ETF	808524847	SHS	1,646,125	$35,375,226	dollars as filed
SPDR SERIES TRUST	78464A607	ST STR DOW REIT	348,675	$35,205,715	dollars as filed
J P MORGAN EXCHANGE TRADED F	46641Q837	ULTRA SHRT ETF	486,336	$24,613,465	dollars as filed
Dimensional International Value ETF	25434V807	SHS	403,315	$21,286,966	dollars as filed
ABRDN ETFS	003261104	BBRG ALL COMD K1	356,335	$8,655,377	dollars as filed
iShares Core MSCI Emerging Markets ETF	46434G103	SHS	43,520	$3,035,520	dollars as filed

Amendment chain

Filing	Role	Filed	Accepted	Ingested
13F-HR 0001167711-26-000004	this filing	2026-05-07	acceptance time not in the bulk data set	2026-10-06 09:58:43 UTC