Northern Trust Corporation
MX ˙ BMV ˙ US6658591044
SecurityMX:NTRS / Northern Trust Corporation
InstitutionKorea Investment CORP
Latest Disclosed Ownership168,691 shares
Latest Disclosed Value $ 23,544,203
Korea Investment CORP reports 45.39% increase in ownership of NTRS / Northern Trust Corporation

On May 13, 2026 - Korea Investment CORP filed a 13F-HR form disclosing ownership of 168,691 shares of Northern Trust Corporation (MX:NTRS) valued at $23,544,203 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 116,030 shares of Northern Trust Corporation. This represents a change in shares of 45.39% 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)
2026-05-13 2026-03-31 13F NORTHERN TR COM 665859104 168,691 52,661 45.39 23,544 48.56 0.0488
2026-02-13 2025-12-31 13F NORTHERN TR COM 665859104 116,030 -1,244 -1.06 15,849 0.40 0.0312
2025-11-13 2025-09-30 13F NORTHERN TR COM 665859104 117,274 -31,060 -20.94 15,785 -16.07 0.0325
2025-08-13 2025-06-30 13F NORTHERN TR COM 665859104 148,334 -43,461 -22.66 18,807 -0.60 0.0418
2025-05-14 2025-03-31 13F NORTHERN TR COM 665859104 191,795 25,678 15.46 18,921 11.12 0.0459
2025-02-12 2024-12-31 13F NORTHERN TR COM 665859104 166,117 -4,055 -2.38 17,027 11.14 0.0404
2024-11-13 2024-09-30 13F NORTHERN TR COM 665859104 170,172 70,584 70.88 15,321 83.19 0.0364
2024-08-13 2024-06-30 13F NORTHERN TR COM 665859104 99,588 -12,240 -10.95 8,363 -15.89 0.0211
2024-05-14 2024-03-31 13F NORTHERN TR COM 665859104 111,828 -5,320 -4.54 9,944 0.60 0.0252
2024-02-13 2023-12-31 13F NORTHERN TR COM 665859104 117,148 51,623 78.78 9,885 117.14 0.0260
2023-11-13 2023-09-30 13F NORTHERN TR COM 665859104 65,525 -27,547 -29.60 4,553 -34.03 0.0134
2023-08-11 2023-06-30 13F NORTHERN TR COM 665859104 93,072 13,331 16.72 6,900 -1.81 0.0194
2023-05-12 2023-03-31 13F NORTHERN TR COM 665859104 79,741 1,655 2.12 7,028 1.71 0.0205
2023-02-13 2022-12-31 13F NORTHERN TR COM 665859104 78,086 -263 -0.34 6,910 3.06 0.0217
2022-11-10 2022-09-30 13F NORTHERN TR COM 665859104 78,349 4,263 5.75 6,704 -6.21 0.0206
2022-08-12 2022-06-30 13F NORTHERN TR COM 665859104 74,086 -25,014 -25.24 7,148 -38.06 0.0218
2022-05-13 2022-03-31 13F NORTHERN TR COM 665859104 99,100 19,600 24.65 11,540 21.36 0.0285
2022-02-09 2021-12-31 13F NORTHERN TR COM 665859104 79,500 32,400 68.79 9,509 87.26 0.0247
2021-11-12 2021-09-30 13F NORTHERN TR COM 665859104 47,100 -9,400 -16.64 5,078 -22.27 0.0151
2021-08-12 2021-06-30 13F NORTHERN TR COM 665859104 56,500 -3,200 -5.36 6,533 4.11 0.0187
2021-05-13 2021-03-31 13F NORTHERN TR COM 665859104 59,700 -15,300 -20.40 6,275 -10.18 0.0198
2021-02-10 2020-12-31 13F NORTHERN TR COM 665859104 75,000 24,000 47.06 6,986 75.70 0.0210
2020-11-12 2020-09-30 13F NORTHERN TR COM 665859104 51,000 -100 -0.20 3,976 -1.92 0.0140
2020-08-12 2020-06-30 13F NORTHERN TR COM 665859104 51,100 900 1.79 4,054 7.02 0.0149
2020-05-14 2020-03-31 13F NORTHERN TR COM 665859104 50,200 -7,100 -12.39 3,788 -37.78 0.0166
2020-02-11 2019-12-31 13F NORTHERN TR COM 665859104 57,300 40,800 247.27 6,088 295.32 0.0222
2019-11-12 2019-09-30 13F NORTHERN TR COM 665859104 16,500 16,500 1,540 0.0065
2019-08-12 2019-06-30 13F NORTHERN TR COM 665859104 0 -30,400 -100.00 0 -100.00
2019-05-15 2019-03-31 13F NORTHERN TR COM 665859104 30,400 22,289 274.80 2,748 305.31 0.0124
2019-02-13 2018-12-31 13F NORTHERN TR COM 665859104 8,111 -28,286 -77.72 678 -81.76 0.0037
2018-11-13 2018-09-30 13F NORTHERN TR COM 665859104 36,397 -74,286 -67.12 3,717 -67.36 0.0171
2018-08-13 2018-06-30 13F NORTHERN TR COM 665859104 110,683 33,000 42.48 11,388 42.15 0.0519
2018-05-09 2018-03-31 13F NORTHERN TR COM 665859104 77,683 9,786 14.41 8,011 18.12 0.0373
2018-02-12 2017-12-31 13F NORTHERN TR COM 665859104 67,897 26,800 65.21 6,782 79.51 0.0309
2017-10-25 2017-09-30 13F NORTHERN TR COM 665859104 41,097 -10,000 -19.57 3,778 -23.94 0.0175
2017-07-31 2017-06-30 13F NORTHERN TR COM 665859104 51,097 -1,929 -3.64 4,967 8.19 0.0231
2017-04-25 2017-03-31 13F NORTHERN TR COM 665859104 53,026 -72,328 -57.70 4,591 -58.87 0.0228
2017-02-13 2016-12-31 13F NORTHERN TR COM 665859104 125,354 -45,646 -26.69 11,163 -3.98 0.0536
2016-11-09 2016-09-30 13F NORTHERN TR COM 665859104 171,000 -9,100 -5.05 11,626 -2.57 0.0620
2016-08-12 2016-06-30 13F NORTHERN TR COM 665859104 180,100 109,800 156.19 11,933 160.49 0.0710
2016-05-12 2016-03-31 13F NORTHERN TR COM 665859104 70,300 70,000 23,333.33 4,581 21,714.29 0.0335
2016-02-01 2015-12-31 13F NORTHERN TR COM 665859104 300 -1,400 -82.35 21 -81.74 0.0001
2015-11-12 2015-09-30 13F NORTHERN TR COM 665859104 1,700 1,700 0.00 115 0.0009
2015-02-12 2014-12-31 13F NORTHERN TR COM 665859104 0 -13,800 -100.00 0 -100.00
2014-11-14 2014-09-30 13F NORTHERN TR COM 665859104 13,800 -14,900 -51.92 939 -50.11 0.0077
2014-05-14 2014-03-31 13F NORTHERN TR COM 665859104 28,700 24,800 635.90 1,882 680.91 0.0167
2014-02-06 2013-12-31 13F NORTHERN TR COM 665859104 3,900 -3,100 -44.29 241 -36.75 0.0023
2013-11-07 2013-09-30 13F/A-1 NORTHERN TR COM 665859104 7,000 7,000 381 0.0040
2013-11-05 2013-09-30 13F NORTHERN TR COM 665859104 17,300 941 0.0108
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.