Northern Trust Corporation
MX ˙ BMV ˙ US6658591044
SecurityMX:NTRS / Northern Trust Corporation
InstitutionHeartland Advisors Inc
Latest Disclosed Ownership67,779 shares
Latest Disclosed Value $ 9,459,915
Heartland Advisors Inc reports 36.79% decrease in ownership of NTRS / Northern Trust Corporation

On May 6, 2026 - Heartland Advisors Inc filed a 13F-HR form disclosing ownership of 67,779 shares of Northern Trust Corporation (MX:NTRS) valued at $9,459,915 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 107,235 shares of Northern Trust Corporation. This represents a change in shares of -36.79% 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)
2026-05-06 2026-03-31 13F NORTHERN TR COM 665859104 67,779 -39,456 -36.79 9,460 -35.42 0.4825
2026-02-11 2025-12-31 13F NORTHERN TR COM 665859104 107,235 -26,493 -19.81 14,647 -18.62 0.7889
2025-11-07 2025-09-30 13F NORTHERN TR COM 665859104 133,728 -14,656 -9.88 18,000 -4.33 0.9509
2025-08-12 2025-06-30 13F NORTHERN TR COM 665859104 148,384 10,480 7.60 18,814 38.29 1.0490
2025-05-07 2025-03-31 13F NORTHERN TR COM 665859104 137,904 -36,189 -20.79 13,604 -23.76 0.7812
2025-02-12 2024-12-31 13F NORTHERN TR COM 665859104 174,093 -9,998 -5.43 17,845 7.67 0.9698
2024-11-12 2024-09-30 13F NORTHERN TR COM 665859104 184,091 -98,525 -34.86 16,574 -30.17 0.8690
2024-08-08 2024-06-30 13F NORTHERN TR COM 665859104 282,616 -77,458 -21.51 23,734 -25.87 1.3284
2024-05-07 2024-03-31 13F NORTHERN TR COM 665859104 360,074 41,053 12.87 32,018 18.94 1.6779
2024-02-08 2023-12-31 13F NORTHERN TR COM 665859104 319,021 224,554 237.71 26,919 310.15 1.4067
2023-11-08 2023-09-30 13F NORTHERN TR COM 665859104 94,467 -78,028 -45.23 6,564 -48.68 0.3688
2023-08-10 2023-06-30 13F NORTHERN TR COM 665859104 172,495 47,923 38.47 12,789 16.49 0.7317
2023-05-11 2023-03-31 13F NORTHERN TR COM 665859104 124,572 124,572 10,979 0.6784
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.