Bank of Montreal
US ˙ NYSE ˙ CA0636711016

SecurityBMO / Bank of Montreal
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership61,427 shares
Latest Disclosed Value $ 8,270,943
Janus Henderson Group Plc reports 1.29% decrease in ownership of BMO / Bank of Montreal

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 61,427 shares of Bank of Montreal (US:BMO) valued at $8,313,530 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 62,227 shares of Bank of Montreal. This represents a change in shares of -1.29% during the quarter. The current value of the position is $9,971,445 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)
2026-05-18 2026-03-31 13F/A-1 BANK MONTREAL MEDIUM COM 063671101 61,427 -800 -1.29 8,271 2.14 0.0039
2026-05-15 2026-03-31 13F BANK MONTREAL MEDIUM COM 063671101 61,427 -800 8,271 0.0015
2026-02-17 2025-12-31 13F BANK MONTREAL QUE COM 063671101 62,227 6,100 10.87 8,097 11.02 0.0036
2025-11-14 2025-09-30 13F BANK MONTREAL QUE COM 063671101 56,127 -6,419 -10.26 7,294 5.50 0.0033
2025-08-14 2025-06-30 13F BANK MONTREAL QUE COM 063671101 62,546 -11,817 -15.89 6,913 -2.70 0.0034
2025-05-15 2025-03-31 13F BANK MONTREAL QUE COM 063671101 74,363 -2,400 -3.13 7,106 -4.57 0.0039
2025-02-14 2024-12-31 13F BANK MONTREAL QUE COM 063671101 76,763 5,600 7.87 7,445 15.84 0.0038
2024-11-14 2024-09-30 13F BANK MONTREAL QUE COM 063671101 71,163 0 0.00 6,428 7.75 0.0033
2024-08-14 2024-06-30 13F BANK MONTREAL QUE COM 063671101 71,163 -5,790 -7.52 5,966 -20.68 0.0032
2024-05-15 2024-03-31 13F BANK MONTREAL QUE COM 063671101 76,953 -28,634 -27.12 7,521 -28.29 0.0041
2024-02-14 2023-12-31 13F BANK MONTREAL QUE COM 063671101 105,587 25,934 32.56 10,487 55.21 0.0063
2023-11-14 2023-09-30 13F BANK MONTREAL QUE COM 063671101 79,653 -45,585 -36.40 6,756 -40.32 0.0044
2023-08-14 2023-06-30 13F BANK MONTREAL QUE COM 063671101 125,238 42,344 51.08 11,321 53.55 0.0070
2023-05-15 2023-03-31 13F BANK MONTREAL QUE COM 063671101 82,894 -132,085 -61.44 7,374 -62.11 0.0049
2023-02-14 2022-12-31 13F BANK MONTREAL QUE COM 063671101 214,979 134,140 165.93 19,458 173.02 0.0139
2023-01-13 2022-09-30 13F/A-1 BANK MONTREAL QUE COM 063671101 80,839 -25,869 -24.24 7,127 -30.45 0.0053
2022-11-14 2022-09-30 13F BANK MONTREAL QUE COM 063671101 80,839 -25,869 7,127 0.0018
2022-08-15 2022-06-30 13F BANK MONTREAL QUE COM 063671101 106,708 -330,517 -75.59 10,248 -80.12 0.0071
2022-05-16 2022-03-31 13F BANK MONTREAL QUE COM 063671101 437,225 104,202 31.29 51,548 43.58 0.0249
2022-02-14 2021-12-31 13F BANK MONTREAL QUE COM 063671101 333,023 136,677 69.61 35,903 83.11 0.0150
2021-11-16 2021-09-30 13F BANK MONTREAL QUE COM 063671101 196,346 -7,340 -3.60 19,607 -6.17 0.0086
2021-08-16 2021-06-30 13F BANK MONTREAL QUE COM 063671101 203,686 13,154 6.90 20,897 23.07 0.0089
2021-05-17 2021-03-31 13F BANK MONTREAL QUE COM 063671101 190,532 41,487 27.84 16,980 49.92 0.0078
2021-02-16 2020-12-31 13F BANK MONTREAL QUE COM 063671101 149,045 3,853 2.65 11,326 33.89 0.0053
2020-11-16 2020-09-30 13F BANK MONTREAL QUE COM 063671101 145,192 -148,860 -50.62 8,459 -45.73 0.0044
2020-08-14 2020-06-30 13F BANK MONTREAL QUE COM 063671101 294,052 99,633 51.25 15,586 60.73 0.0087
2020-05-14 2020-03-31 13F BANK MONTREAL COM 063671101 194,419 -101,532 -34.31 9,697 -57.78 0.0067
2020-02-18 2019-12-31 13F BANK MONTREAL QUE COM 063671101 295,951 110,500 59.58 22,966 67.83 0.0118
2019-11-14 2019-09-30 13F BANK MONTREAL QUE COM 063671101 185,451 -29,279 -13.64 13,684 -15.78 0.0074
2019-07-31 2019-06-30 13F BANK MONTREAL QUE COM 063671101 214,730 1,237 0.58 16,248 1.71 0.0088
2019-04-30 2019-03-31 13F BANK MONTREAL QUE COM 063671101 213,493 -8,448 -3.81 15,975 10.26 0.0089
2019-02-06 2018-12-31 13F BANK MONTREAL QUE COM 063671101 221,941 22,280 11.16 14,489 -12.08 0.0092
2018-11-09 2018-09-30 13F BANK MONTREAL QUE COM 063671101 199,661 4,629 2.37 16,480 9.39 0.0088
2018-08-10 2018-06-30 13F BANK MONTREAL QUE COM 063671101 195,032 4,870 2.56 15,065 4.95 0.0086
2018-05-14 2018-03-31 13F BANK MONTREAL QUE COM 063671101 190,162 181,162 2,012.91 14,354 2,292.33 0.0085
2014-01-14 2013-12-31 13F BANK MONTREAL QUE COM 063671101 9,000 9,000 600 0.0061
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.