Citadel Advisors’s FlexShares Disciplined Duration MBS Index Fund MBSD Stock Holding History

Citadel Advisors’s Portfolio MBSD Stock Details MBSD Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$486K	Sell	23,451 -23,723	-50%	-$494K	﹤0.01%	9386
2025 Q4	$980K	Buy	47,174 +33,776	+252%	+$705K	﹤0.01%	7434
2025 Q3	$279K	Sell	13,398 -9,318	-41%	-$193K	﹤0.01%	10541
2025 Q2	$470K	Sell	22,716 -1,718	-7%	-$35.2K	﹤0.01%	8773
2025 Q1	$504K	Sell	24,434 -13,585	-36%	-$277K	﹤0.01%	8458
2024 Q4	$769K	Sell	38,019 -4,091	-10%	-$83.9K	﹤0.01%	7590
2024 Q3	$883K	Buy	42,110 +19,358	+85%	+$402K	﹤0.01%	7115
2024 Q2	$462K	Buy	+22,752	New	+$459K	﹤0.01%	8214
2024 Q1	–	Sell	-12,571	Closed	-$258K	–	15128
2023 Q4	$258K	Sell	12,571 -50,177	-80%	-$1M	﹤0.01%	9457
2023 Q3	$1.24M	Sell	62,748 -23,277	-27%	-$468K	﹤0.01%	6134
2023 Q2	$1.75M	Buy	+86,025	New	+$1.76M	﹤0.01%	5387
2023 Q1	–	Sell	-143,796	Closed	-$2.93M	–	15172
2022 Q4	$2.93M	Buy	143,796 +103,626	+258%	+$2.1M	﹤0.01%	4782
2022 Q3	$812K	Buy	+40,170	New	+$846K	﹤0.01%	7444
2022 Q2	–	Sell	-167,895	Closed	-$3.7M	–	13612
2022 Q1	$3.7M	Buy	167,895 +44,501	+36%	+$1.01M	﹤0.01%	4765
2021 Q4	$2.86M	Buy	123,394 +93,995	+320%	+$2.19M	﹤0.01%	5435
2021 Q3	$691K	Buy	+29,399	New	+$694K	﹤0.01%	9106
2020 Q3	–	Sell	-8,979	Closed	-$217K	–	10465
2020 Q2	$217K	Sell	8,979 -20,944	-70%	-$505K	﹤0.01%	8408
2020 Q1	$710K	Buy	29,923 +13,618	+84%	+$323K	﹤0.01%	5913
2019 Q4	$383K	Sell	16,305 -93,578	-85%	-$2.2M	﹤0.01%	7222
2019 Q3	$2.59M	Buy	109,883 +11,822	+12%	+$278K	﹤0.01%	4082
2019 Q2	$2.3M	Buy	98,061 +18,103	+23%	+$421K	﹤0.01%	4281
2019 Q1	$1.86M	Buy	+79,958	New	+$1.85M	﹤0.01%	4582
2017 Q3	–	Sell	-17,676	Closed	-$423K	–	7815
2017 Q2	$423K	Buy	+17,676	New	+$425K	﹤0.01%	5358

Other funds holding MBSD

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

CNBT

Cornerstone National Bank & Trust Palatine, Illinois $296M AUM 12.13% 1-Year Est. Return

CCA

Cottonwood Capital Advisors Salt Lake City, Utah $166M AUM 29.33% 1-Year Est. Return

MOS

MGO One Seven Beachwood, Ohio $6.06B AUM 28.9% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

CreativeOne Wealth Overland Park, Kansas $4.31B AUM 19.42% 1-Year Est. Return

BCM

Boltwood Capital Management Walnut Creek, California $436M AUM 24% 1-Year Est. Return

TAM

Titleist Asset Management San Antonio, Texas $1.49B AUM 22.27% 1-Year Est. Return

Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return

Sanctuary Advisors Indianapolis, Indiana $18.5B AUM 23.32% 1-Year Est. Return

Citadel Advisors's MBSD Position: Q1 2026 in Review

Citadel Advisors reduced its FlexShares Disciplined Duration MBS Index Fund (MBSD) stake by 50% in Q1 2026, selling an estimated $494K and leaving 23,451 shares worth $486K. The position accounts for ﹤0.01% of the portfolio, ranked #9386.

Citadel Advisors first reported a position in MBSD in Q2 2017 and has held it in 23 quarters since. The position peaked at $3.7M in Q1 2022. 32 funds tracked by Wall St. Rank hold MBSD as of Q1 2026.

Citadel Advisors held 23,451 shares of FlexShares Disciplined Duration MBS Index Fund worth $486K as of Q1 2026.
Citadel Advisors sold 23,723 FlexShares Disciplined Duration MBS Index Fund shares in Q1 2026, an estimated $494K.
FlexShares Disciplined Duration MBS Index Fund made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #9386 holding.
Citadel Advisors first reported a position in FlexShares Disciplined Duration MBS Index Fund in Q2 2017 and has held it in 23 quarters since.
Citadel Advisors's FlexShares Disciplined Duration MBS Index Fund position peaked at $3.7M in Q1 2022.
32 funds tracked by Wall St. Rank held FlexShares Disciplined Duration MBS Index Fund as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.