FlexShares Trust - FlexShares iBoxx 3-Year Target Duration TIPS Index Fund
US ˙ ARCA ˙ US33939L5066

SecurityTDTT / FlexShares Trust - FlexShares iBoxx 3-Year Target Duration TIPS Index Fund
InstitutionUBS Group AG
Latest Disclosed Ownership18,451 shares
Latest Disclosed Value $ 447,252
UBS Group AG reports 31.05% decrease in ownership of TDTT / FlexShares Trust - FlexShares iBoxx 3-Year Target Duration TIPS Index Fund

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 18,451 shares of FlexShares Trust - FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (US:TDTT) valued at $447,252 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 26,759 shares of FlexShares Trust - FlexShares iBoxx 3-Year Target Duration TIPS Index Fund. This represents a change in shares of -31.05% during the quarter. The current value of the position is $443,193 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 18,451 -8,308 -31.05 447 -30.48 0.0000
2026-01-29 2025-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 26,759 7,233 37.04 644 35.37 0.0000
2025-11-13 2025-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 19,526 -3,074 -13.60 475 -13.16 0.0001
2025-08-14 2025-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 22,600 11,983 112.87 548 112.02 0.0001
2025-05-13 2025-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 10,617 -5,740 -35.09 259 -32.99 0.0000
2025-02-14 2024-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 16,357 6,103 59.52 386 56.50 0.0001
2024-11-14 2024-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 10,254 -2,774 -21.29 247 -19.87 0.0001
2024-08-14 2024-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 13,028 -14,641 -52.91 307 -53.27 0.0001
2024-05-13 2024-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 27,669 -8,665 -23.85 657 -23.43 0.0002
2024-02-09 2023-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 36,334 3,161 9.53 858 11.57 0.0003
2023-11-09 2023-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 33,173 -37,750 -53.23 769 -53.90 0.0003
2023-08-11 2023-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 70,923 -26,616 -27.29 1,669 -29.23 0.0006
2023-05-12 2023-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 97,539 -226 -0.23 2,358 2.52 0.0009
2023-02-08 2022-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 97,765 -266,980 -73.20 2,299 -73.04 0.0009
2022-11-10 2022-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 364,745 -334,417 -47.83 8,528 -50.84 0.0037
2022-08-10 2022-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 699,162 -19,536 -2.72 17,346 -6.85 0.0071
2022-05-16 2022-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 718,698 67,542 10.37 18,621 8.70 0.0062
2022-02-14 2021-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 651,156 168,316 34.86 17,131 34.85 0.0049
2021-11-15 2021-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 482,840 281,388 139.68 12,704 138.08 0.0040
2021-08-13 2021-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 201,452 -15,149 -6.99 5,336 -6.58 0.0017
2021-05-12 2021-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 216,601 -184,048 -45.94 5,712 -45.36 0.0019
2021-02-11 2020-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 400,649 167,958 72.18 10,453 73.78 0.0035
2020-11-12 2020-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 232,691 101,040 76.75 6,015 80.74 0.0023
2020-07-31 2020-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 131,651 13,640 11.56 3,328 14.68 0.0014
2020-05-01 2020-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 118,011 -24,443 -17.16 2,902 -17.56 0.0014
2020-02-14 2019-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 142,454 12,586 9.69 3,520 10.24 0.0012
2019-11-14 2019-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 129,868 71,209 121.39 3,193 120.51 0.0012
2019-08-14 2019-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 58,659 4,734 8.78 1,448 10.37 0.0006
2019-05-14 2019-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 53,925 6,543 13.81 1,312 16.31 0.0005
2019-02-14 2018-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 47,382 8,666 22.38 1,128 21.68 0.0005
2018-11-14 2018-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 38,716 24,743 177.08 927 172.65 0.0004
2018-08-14 2018-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 13,973 62 0.45 340 0.29 0.0001
2018-05-15 2018-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 13,911 -2,095 -13.09 339 -12.85 0.0001
2018-02-14 2017-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 16,006 1,490 10.26 389 8.96 0.0002
2017-11-14 2017-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 14,516 -1,886 -11.50 357 -11.41 0.0002
2017-11-14 2017-06-30 13F/A-1 FLEXSHARES TR IBOXX 3R TARGT 33939L506 16,402 3,793 30.08 403 27.94 0.0002
2017-08-14 2017-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 16,402 3,793 403
2017-11-14 2017-03-31 13F/A-1 FLEXSHARES TR IBOXX 3R TARGT 33939L506 12,609 -2,225 -15.00 315 -13.93 0.0002
2017-05-12 2017-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 12,609 -2,225 315
2017-02-14 2016-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 14,834 1,706 13.00 366 12.27 0.0002
2016-11-14 2016-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 13,128 -3,558 -21.32 326 -21.63 0.0002
2016-08-12 2016-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 16,686 -783 -4.48 416 -3.70 0.0003
2016-05-12 2016-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 17,469 1,583 9.96 432 12.50 0.0003
2016-02-16 2015-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 15,886 1,193 8.12 384 7.26 0.0002
2015-11-13 2015-09-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 14,693 2,632 21.82 358 20.95 0.0003
2015-08-14 2015-06-30 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 12,061 5,976 98.21 296 100.00 0.0002
2015-05-14 2015-03-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 6,085 -1,145 -15.84 148 -15.91 0.0001
2015-02-17 2014-12-31 13F FLEXSHARES TR IBOXX 3R TARGT 33939L506 7,230 7,230 176 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.