Bank of Montreal
US ˙ NYSE ˙ CA0636711016

SecurityBMO / Bank of Montreal
InstitutionOssiam
Latest Disclosed Ownership5,558 shares
Latest Disclosed Value $ 750,413
Ossiam reports 14.18% decrease in ownership of BMO / Bank of Montreal

On May 14, 2026 - Ossiam filed a 13F-HR form disclosing ownership of 5,558 shares of Bank of Montreal (US:BMO) valued at $752,220 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,476 shares of Bank of Montreal. This represents a change in shares of -14.18% during the quarter. The current value of the position is $902,230 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)
2026-05-14 2026-03-31 13F BANK MONTREAL MEDIUM COM 063671101 5,558 -918 -14.18 750 -10.93 0.0132
2026-02-13 2025-12-31 13F BANK MONTREAL QUE COM 063671101 6,476 -7,370 -53.23 842 -53.33 0.0168
2025-11-14 2025-09-30 13F BANK MONTREAL QUE COM 063671101 13,846 -12,547 -47.54 1,805 -38.18 0.0232
2025-08-13 2025-06-30 13F BANK MONTREAL QUE COM 063671101 26,393 -26,075 -49.70 2,919 -41.74 0.0328
2025-05-14 2025-03-31 13F BANK MONTREAL QUE COM 063671101 52,468 -1,147 -2.14 5,010 -3.71 0.0700
2025-02-13 2024-12-31 13F BANK MONTREAL QUE COM 063671101 53,615 -23,583 -30.55 5,202 -25.40 0.0898
2024-11-13 2024-09-30 13F BANK MONTREAL QUE COM 063671101 77,198 26,230 51.46 6,974 63.03 0.1348
2024-08-13 2024-06-30 13F BANK MONTREAL QUE COM 063671101 50,968 -1,180 -2.26 4,277 -16.07 0.0811
2024-05-13 2024-03-31 13F BANK MONTREAL QUE COM 063671101 52,148 -8,830 -14.48 5,096 -15.95 0.0893
2024-02-13 2023-12-31 13F BANK MONTREAL QUE COM 063671101 60,978 14,550 31.34 6,063 54.12 0.0976
2023-11-14 2023-09-30 13F BANK MONTREAL QUE COM 063671101 46,428 10,452 29.05 3,935 20.97 0.0695
2023-08-11 2023-06-30 13F BANK MONTREAL QUE COM 063671101 35,976 -4,862 -11.91 3,253 -10.46 0.0584
2023-05-12 2023-03-31 13F BANK MONTREAL QUE COM 063671101 40,838 -6,573 -13.86 3,633 -15.38 0.0755
2023-02-13 2022-12-31 13F BANK MONTREAL QUE COM 063671101 47,411 10,480 28.38 4,292 31.90 0.1113
2022-11-14 2022-09-30 13F BANK MONTREAL QUE COM 063671101 36,931 36,931 3,254 0.0942
2020-11-12 2020-09-30 13F BANK MONTREAL QUE COM 063671101 0 -2,800 -100.00 0 -100.00
2020-08-13 2020-06-30 13F BANK MONTREAL QUE COM 063671101 2,800 -5,800 -67.44 149 -65.27 0.0095
2020-05-14 2020-03-31 13F BANK MONTREAL COM 063671101 8,600 600 7.50 429 -30.92 0.0292
2020-02-14 2019-12-31 13F BANK MONTREAL QUE COM 063671101 8,000 6,700 515.38 621 546.88 0.0473
2019-11-13 2019-09-30 13F BANK MONTREAL QUE COM 063671101 1,300 -400 -23.53 96 -25.58 0.0067
2019-08-13 2019-06-30 13F BANK MONTREAL QUE COM 063671101 1,700 0 0.00 129 1.57 0.0100
2019-05-15 2019-03-31 13F BANK MONTREAL QUE COM 063671101 1,700 1,700 127 0.0105
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.