Canadian National Railway Company
US ˙ NYSE ˙ CA1363751027

SecurityCNI / Canadian National Railway Company
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,382,499 shares
Latest Disclosed Value $ 142,065,697
Dimensional Fund Advisors Lp reports 7.95% increase in ownership of CNI / Canadian National Railway Company

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,382,499 shares of Canadian National Railway Company (US:CNI) valued at $142,079,422 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,280,638 shares of Canadian National Railway Company. This represents a change in shares of 7.95% during the quarter. The current value of the position is $165,139,506 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)
2026-05-07 2026-03-31 13F CANADIAN NATL RY COM 136375102 1,382,499 101,861 7.95 142,066 12.22 0.0064
2026-02-12 2025-12-31 13F CANADIAN NATL RY COM 136375102 1,280,638 22,234 1.77 126,595 6.68 0.0266
2025-11-12 2025-09-30 13F CANADIAN NATL RY COM 136375102 1,258,404 10,500 0.84 118,664 -8.60 0.0255
2025-08-12 2025-06-30 13F CANADIAN NATL RY COM 136375102 1,247,904 37,548 3.10 129,826 10.06 0.0301
2025-05-13 2025-03-31 13F CANADIAN NATL RY COM 136375102 1,210,356 -866 -0.07 117,961 -4.06 0.0293
2025-02-13 2024-12-31 13F CANADIAN NATL RY COM 136375102 1,211,222 31,752 2.69 122,948 -11.02 0.0295
2024-11-07 2024-09-30 13F CANADIAN NATL RY COM 136375102 1,179,470 76,473 6.93 138,172 6.04 0.0335
2024-08-09 2024-06-30 13F CANADIAN NATL RY COM 136375102 1,102,997 48,984 4.65 130,297 -6.14 0.0340
2024-05-10 2024-03-31 13F CANADIAN NATL RY COM 136375102 1,054,013 50,777 5.06 138,824 10.15 0.0376
2024-02-07 2023-12-31 13F CANADIAN NATL RY COM 136375102 1,003,236 42,545 4.43 126,035 21.10 0.0368
2023-11-09 2023-09-30 13F CANADIAN NATL RY COM 136375102 960,691 39,426 4.28 104,072 -6.69 0.0341
2023-08-09 2023-06-30 13F CANADIAN NATL RY COM 136375102 921,265 49,359 5.66 111,538 8.44 0.0355
2023-05-12 2023-03-31 13F CANADIAN NATL RY COM 136375102 871,906 15,953 1.86 102,859 101,739.60 0.0346
2023-02-09 2022-12-31 13F CANADIAN NATL RY COM 136375102 855,953 37,521 4.58 102 -99.89 0.0301
2022-11-10 2022-09-30 13F CANADIAN NATL RY COM 136375102 818,432 28,663 3.63 88,383 -0.50 0.0339
2022-08-12 2022-06-30 13F CANADIAN NATL RY COM 136375102 789,769 27,428 3.60 88,825 -13.14 0.0319
2022-05-13 2022-03-31 13F CANADIAN NATL RY COM 136375102 762,341 22,984 3.11 102,260 12.58 0.0315
2022-02-09 2021-12-31 13F CANADIAN NATL RY COM 136375102 739,357 21,194 2.95 90,837 9.37 0.0275
2021-11-12 2021-09-30 13F CANADIAN NATL RY COM 136375102 718,163 20,083 2.88 83,056 12.75 0.0268
2021-08-12 2021-06-30 13F CANADIAN NATL RY COM 136375102 698,080 -24,991 -3.46 73,661 -12.16 0.0233
2021-05-14 2021-03-31 13F CANADIAN NATL RY COM 136375102 723,071 6,562 0.92 83,862 6.55 0.0277
2021-03-08 2020-12-31 13F/A-2 CANADIAN NATL RY COM 136375102 716,509 7,384 1.04 78,709 4.26 0.0284
2021-02-11 2020-12-31 13F CANADIAN NATL RY COM 136375102 716,509 7,384 78,709 28,425.5072
2020-11-12 2020-09-30 13F CANADIAN NATL RY COM 136375102 709,125 0 0.00 75,493 20.20 0.0320
2020-08-13 2020-06-30 13F CANADIAN NATL RY COM 136375102 709,125 4,000 0.57 62,807 14.74 0.0276
2020-05-14 2020-03-31 13F CANADIAN NATL RY COM 136375102 705,125 3,200 0.46 54,739 -13.78 0.0285
2020-02-14 2019-12-31 13F CANADIAN NATL RY COM 136375102 701,925 -7,746 -1.09 63,489 -0.44 0.0231
2019-11-12 2019-09-30 13F CANADIAN NATL RY COM 136375102 709,671 51,962 7.90 63,771 4.84 0.0248
2019-08-13 2019-06-30 13F CANADIAN NATL RY COM 136375102 657,709 220,180 50.32 60,825 55.36 0.0236
2019-08-12 2019-03-31 13F/A-2 CANADIAN NATL RY COM 136375102 437,529 76,171 21.08 39,150 46.19 0.0156
2019-05-10 2019-03-31 13F CANADIAN NATL RY COM 136375102 437,529 76,171 39,150
2019-02-26 2018-12-31 13F/A-1 CANADIAN NATL RY COM 136375102 361,358 13,759 3.96 26,780 -14.21 0.0121
2019-02-13 2018-12-31 13F CANADIAN NATL RY COM 136375102 361,358 13,759 26,780
2018-11-13 2018-09-30 13F CANADIAN NATL RY COM 136375102 347,599 3,488 1.01 31,214 10.96 0.0119
2018-08-10 2018-06-30 13F CANADIAN NATL RY COM 136375102 344,111 11,218 3.37 28,131 15.56 0.0112
2018-05-11 2018-03-31 13F CANADIAN NATL RY COM 136375102 332,893 56,995 20.66 24,344 6.95 0.0101
2018-02-12 2017-12-31 13F CANADIAN NATL RY COM 136375102 275,898 7,373 2.75 22,762 2.31 0.0094
2017-11-13 2017-09-30 13F CANADIAN NATL RY COM 136375102 268,525 7,946 3.05 22,247 5.34 0.0097
2017-08-11 2017-06-30 13F CANADIAN NATL RY COM 136375102 260,579 7,516 2.97 21,120 12.89 0.0098
2017-05-12 2017-03-31 13F CANADIAN NATL RY COM 136375102 253,063 21,155 9.12 18,709 19.69 0.0089
2017-02-09 2016-12-31 13F CANADIAN NATL RY COM 136375102 231,908 11,991 5.45 15,631 8.68 0.0078
2016-11-10 2016-09-30 13F CANADIAN NATL RY COM 136375102 219,917 -822 -0.37 14,383 10.32 0.0078
2016-08-09 2016-06-30 13F CANADIAN NATL RY COM 136375102 220,739 9,711 4.60 13,037 -1.09 0.0075
2016-05-13 2016-03-31 13F CANADIAN NATL RY COM 136375102 211,028 2,231 1.07 13,181 12.97 0.0079
2016-02-10 2015-12-31 13F CANADIAN NATL RY COM 136375102 208,797 20,826 11.08 11,668 9.36 0.0073
2015-11-13 2015-09-30 13F CANADIAN NATL RY COM 136375102 187,971 6,958 3.84 10,669 2.06 0.0070
2015-08-14 2015-06-30 13F CANADIAN NATL RY COM 136375102 181,013 556 0.31 10,454 -13.37 0.0064
2015-05-14 2015-03-31 13F CANADIAN NATL RY COM 136375102 180,457 9,500 5.56 12,067 2.43 0.0076
2015-02-06 2014-12-31 13F CANADIAN NATL RY COM 136375102 170,957 17,941 11.72 11,781 8.50 0.0077
2014-11-13 2014-09-30 13F CANADIAN NATL RY COM 136375102 153,016 52,056 51.56 10,858 65.42 0.0077
2014-08-08 2014-06-30 13F CANADIAN NATL RY COM 136375102 100,960 20,349 25.24 6,564 44.84 0.0046
2014-05-14 2014-03-31 13F CANADIAN NATL RY COM 136375102 80,611 47,883 146.31 4,532 142.87 0.0034
2014-02-12 2013-12-31 13F CANADIAN NATL RY COM 136375102 32,728 16,964 107.61 1,866 16.77 0.0015
2013-11-13 2013-09-30 13F CANADIAN NATL RY COM 136375102 15,764 2,240 16.56 1,598 21.52 0.0014
2013-08-15 2013-06-30 13F CANADIAN NATL RY COM 136375102 13,524 13,524 1,315 0.0012
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.