Northern Trust Corporation
MX ˙ BMV ˙ US6658591044
SecurityMX:NTRS / Northern Trust Corporation
InstitutionRobeco Institutional Asset Management B.V.
Latest Disclosed Ownership1,440,739 shares
Latest Disclosed Value $ 201,083,939
Robeco Institutional Asset Management B.V. reports 127.69% increase in ownership of NTRS / Northern Trust Corporation

On April 21, 2026 - Robeco Institutional Asset Management B.V. filed a 13F-HR form disclosing ownership of 1,440,739 shares of Northern Trust Corporation (MX:NTRS) valued at $201,083,939 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 632,753 shares of Northern Trust Corporation. This represents a change in shares of 127.69% during the quarter.

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)
2026-04-21 2026-03-31 13F NORTHERN TR COM 665859104 1,440,739 807,986 127.69 201,084 132.66 0.2866
2026-01-23 2025-12-31 13F NORTHERN TR COM 665859104 632,753 -28,515 -4.31 86,428 -2.90 0.1231
2025-10-22 2025-09-30 13F NORTHERN TR COM 665859104 661,268 39,132 6.29 89,007 12.84 0.1289
2025-07-18 2025-06-30 13F NORTHERN TR COM 665859104 622,136 -194,150 -23.78 78,881 -2.04 0.1275
2025-04-23 2025-03-31 13F NORTHERN TR COM 665859104 816,286 137,825 20.31 80,527 15.79 0.1564
2025-01-23 2024-12-31 13F NORTHERN TR COM 665859104 678,461 261,797 62.83 69,542 85.39 0.1318
2024-10-29 2024-09-30 13F NORTHERN TR COM 665859104 416,664 148,584 55.43 37,512 66.62 0.0745
2024-07-23 2024-06-30 13F NORTHERN TR COM 665859104 268,080 130,348 94.64 22,513 83.82 0.0484
2024-04-24 2024-03-31 13F NORTHERN TR COM 665859104 137,732 108,918 378.00 12,247 403.78 0.0266
2024-02-14 2023-12-31 13F/A-1 NORTHERN TR COM 665859104 28,814 12,617 77.90 2,431 116.09 0.0059
2024-02-08 2023-12-31 13F NORTHERN TR COM 665859104 1,493 -14,704 29 0.0054
2023-10-24 2023-09-30 13F NORTHERN TR COM 665859104 16,197 1,076 7.12 1,125 0.36 0.0030
2023-07-24 2023-06-30 13F NORTHERN TR COM 665859104 15,121 -1,878 -11.05 1,121 -25.17 0.0029
2023-05-04 2023-03-31 13F NORTHERN TR COM 665859104 16,999 510 3.09 1,498 2.67 0.0041
2023-02-07 2022-12-31 13F NORTHERN TR COM 665859104 16,489 -48,520 -74.64 1,459 -73.77 0.0042
2022-12-01 2022-09-30 13F/A-1 NORTHERN TR COM 665859104 65,009 8,703 15.46 5,562 2.39 0.0180
2022-10-27 2022-09-30 13F NORTHERN TR COM 665859104 65,009 8,703 5,562 0.0177
2022-12-01 2022-06-30 13F/A-1 NORTHERN TR COM 665859104 56,306 12,008 27.11 5,432 5.33 0.0169
2022-07-27 2022-06-30 13F NORTHERN TR COM 665859104 56,306 12,008 5,432 0.0166
2022-12-01 2022-03-31 13F/A-1 NORTHERN TR COM 665859104 44,298 8,776 24.71 5,157 21.37 0.0121
2022-04-26 2022-03-31 13F NORTHERN TR COM 665859104 44,298 8,776 5,157 0.0120
2022-12-01 2021-12-31 13F/A-1 NORTHERN TR COM 665859104 35,522 -755 -2.08 4,249 8.67 0.0090
2022-01-31 2021-12-31 13F NORTHERN TR COM 665859104 35,522 -755 4,249 0.0089
2022-12-01 2021-09-30 13F/A-1 NORTHERN TR COM 665859104 36,277 -6,896 -15.97 3,910 -21.67 0.0087
2021-10-20 2021-09-30 13F NORTHERN TR COM 665859104 36,277 -6,896 3,910 0.0086
2022-12-01 2021-06-30 13F/A-1 NORTHERN TR COM 665859104 43,173 -39,653 -47.88 4,992 -42.67 0.0111
2021-07-28 2021-06-30 13F NORTHERN TR COM 665859104 43,173 -39,653 4,992 0.0109
2022-12-01 2021-03-31 13F/A-1 NORTHERN TR COM 665859104 82,826 477 0.58 8,707 13.52 0.0215
2021-04-23 2021-03-31 13F NORTHERN TR COM 665859104 82,826 477 8,707 0.0212
2022-12-01 2020-12-31 13F/A-1 NORTHERN TR COM 665859104 82,349 13,731 20.01 7,670 43.39 0.0202
2021-01-28 2020-12-31 13F NORTHERN TR COM 665859104 82,349 13,731 7,670 0.0199
2021-01-19 2020-09-30 13F/A-1 NORTHERN TR COM 665859104 68,618 9,381 15.84 5,349 13.83 0.0165
2020-10-29 2020-09-30 13F NORTHERN TR COM 665859104 68,618 9,381 5,349 16,519.4529
2021-01-19 2020-06-30 13F/A-1 NORTHERN TR COM 665859104 59,237 29,304 97.90 4,699 107.92 0.0160
2020-07-20 2020-06-30 13F NORTHERN TR COM 665859104 59,237 29,304 4,699 15,944.5452
2021-01-19 2020-03-31 13F/A-1 NORTHERN TR COM 665859104 29,933 3,931 15.12 2,260 -18.18 0.0091
2020-04-30 2020-03-31 13F NORTHERN TR COM 665859104 29,933 3,931 2,260 9,058.5897
2021-01-19 2019-12-31 13F/A-1 NORTHERN TR COM 665859104 26,002 9,497 57.54 2,762 79.35 0.0088
2020-02-06 2019-12-31 13F NORTHERN TR COM 665859104 26,002 9,497 2,762 8,834.0446
2021-01-19 2019-09-30 13F/A-1 NORTHERN TR COM 665859104 16,505 2,673 19.32 1,540 23.79 0.0054
2019-10-17 2019-09-30 13F NORTHERN TR COM 665859104 16,505 2,673 1,540 5,429.1333
2021-01-19 2019-06-30 13F/A-1 NORTHERN TR COM 665859104 13,832 -6,392 -31.61 1,244 -31.95 0.0044
2019-07-19 2019-06-30 13F NORTHERN TR COM 665859104 13,832 -6,392 1,244 4,386.6694
2021-01-19 2019-03-31 13F/A-1 NORTHERN TR COM 665859104 20,224 0 0.00 1,828 8.23 0.0067
2019-05-02 2019-03-31 13F NORTHERN TR COM 665859104 20,224 0 1,828 6,711.7657
2021-01-19 2018-12-31 13F/A-1 NORTHERN TR COM 665859104 20,224 -146,972 -87.90 1,689 -90.12 0.0076
2019-02-08 2018-12-31 13F NORTHERN TR COM 665859104 20,224 -146,972 1,689 7,570.8588
2021-01-19 2018-09-30 13F/A-1 NORTHERN TR COM 665859104 167,196 143,918 618.26 17,096 613.22 0.0677
2018-10-25 2018-09-30 13F NORTHERN TR COM 665859104 167,196 143,918 17,096
2021-01-19 2018-06-30 13F/A-1 NORTHERN TR COM 665859104 23,278 8,485 57.36 2,397 57.08 0.0109
2018-08-03 2018-06-30 13F NORTHERN TR COM 665859104 23,278 8,485 2,397
2021-01-19 2018-03-31 13F/A-1 NORTHERN TR COM 665859104 14,793 8,066 119.90 1,526 127.08 0.0072
2018-05-07 2018-03-31 13F NORTHERN TR COM 665859104 14,793 8,066 1,526 7,136.3882
2021-01-19 2017-12-31 13F/A-1 NORTHERN TR COM 665859104 6,727 3,550 111.74 672 130.14 0.0035
2018-01-25 2017-12-31 13F NORTHERN TR COM 665859104 6,727 3,550 672
2021-01-19 2017-09-30 13F/A-1 NORTHERN TR COM 665859104 3,177 0 0.00 292 -5.19 0.0018
2017-10-17 2017-09-30 13F NORTHERN TR COM 665859104 3,177 0 292 1,809.0424
2021-01-19 2017-06-30 13F/A-1 NORTHERN TR COM 665859104 3,177 -1,831 -36.56 308 -29.03 0.0020
2017-08-07 2017-06-30 13F NORTHERN TR COM 665859104 3,177 -1,831 308 2,005.3281
2021-01-19 2017-03-31 13F/A-1 NORTHERN TR COM 665859104 5,008 1,593 46.65 434 42.76 0.0029
2017-05-15 2017-03-31 13F NORTHERN TR COM 665859104 5,008 1,593 434 2,882.6018
2017-02-09 2016-12-31 13F NORTHERN TR COM 665859104 3,415 -5,733 -62.67 304 -51.13 0.0024
2016-11-07 2016-09-30 13F NORTHERN TR COM 665859104 9,148 -2,122 -18.83 622 -16.73 0.0046
2016-07-22 2016-06-30 13F NORTHERN TR COM 665859104 11,270 2,655 30.82 747 33.16 0.0057
2016-05-16 2016-03-31 13F NORTHERN TR COM 665859104 8,615 -932 -9.76 561 -18.46 0.0045
2016-02-08 2015-12-31 13F NORTHERN TR COM 665859104 9,547 -65,732 -87.32 688 -86.59 0.0059
2015-11-12 2015-09-30 13F NORTHERN TR COM 665859104 75,279 34,196 83.24 5,131 63.36 0.0391
2015-08-17 2015-06-30 13F NORTHERN TR COM 665859104 41,083 1,386 3.49 3,141 13.60 0.0238
2015-04-24 2015-03-31 13F NORTHERN TR COM 665859104 39,697 30,198 317.91 2,765 332.03 0.0208
2015-02-12 2014-12-31 13F NORTHERN TR COM 665859104 9,499 -4,341 -31.37 640 -32.06 0.0046
2014-11-10 2014-09-30 13F NORTHERN TR COM 665859104 13,840 856 6.59 942 12.95 0.0067
2014-08-13 2014-06-30 13F NORTHERN TR COM 665859104 12,984 1,604 14.09 834 11.80 0.0060
2014-05-07 2014-03-31 13F NORTHERN TR COM 665859104 11,380 137 1.22 746 7.18 0.0057
2014-02-04 2013-12-31 13F NORTHERN TR COM 665859104 11,243 1,813 19.23 696 35.67 0.0058
2013-11-12 2013-09-30 13F NORTHERN TR COM 665859104 9,430 0 0.00 513 -6.04 0.0050
2013-08-27 2013-06-30 13F Northern Trust COM 665859104 9,430 9,430 546 0.0055
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.