Cerus Corporation
US ˙ NasdaqGM ˙ US1570851014

SecurityCERS / Cerus Corporation
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership40,736 shares
Latest Disclosed Value $ 74,140
Mackenzie Financial Corp reports 21.81% decrease in ownership of CERS / Cerus Corporation

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 40,736 shares of Cerus Corporation (US:CERS) valued at $74,140 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 52,097 shares of Cerus Corporation. This represents a change in shares of -21.81% during the quarter. The current value of the position is $113,653 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)
2026-05-13 2026-03-31 13F CERUS COM 157085101 40,736 -11,361 -21.81 74 -31.48 0.0001
2026-02-18 2025-12-31 13F CERUS COM 157085101 52,097 0 0.00 109 31.71 0.0001
2025-11-13 2025-09-30 13F CERUS COM 157085101 52,097 0 0.00 83 12.33 0.0001
2025-08-13 2025-06-30 13F CERUS COM 157085101 52,097 0 0.00 73 1.39 0.0001
2025-05-07 2025-03-31 13F CERUS COM 157085101 52,097 40,736 358.56 72 323.53 0.0001
2025-05-02 2024-12-31 13F/A-2 CERUS COM 157085101 11,361 0 0.00 17 -10.53 0.0000
2025-02-20 2024-12-31 13F/A-1 CERUS COM 157085101 11,361 0 17 0.0000
2025-02-14 2024-12-31 13F Cerus Common Stock 157085101 11,361 0 17 0.0000
2024-11-13 2024-09-30 13F CERUS COM 157085101 11,361 0 0.00 20 0.00 0.0000
2024-08-14 2024-06-30 13F CERUS COM 157085101 11,361 0 0.00 20 -9.52 0.0000
2024-05-10 2024-03-31 13F CERUS COM 157085101 11,361 0 0.00 21 -12.50 0.0000
2024-01-30 2023-12-31 13F CERUS COM 157085101 11,361 0 0.00 25 50.00 0.0000
2023-10-25 2023-09-30 13F CERUS COM 157085101 11,361 0 0.00 17 -40.74 0.0000
2023-08-03 2023-06-30 13F CERUS COM 157085101 11,361 0 0.00 28 -18.18 0.0000
2023-04-24 2023-03-31 13F CERUS COM 157085101 11,361 0 0.00 34 -19.51 0.0001
2023-02-14 2022-12-31 13F CERUS COM 157085101 11,361 -66,879 -85.48 41 -85.46 0.0001
2022-10-07 2022-09-30 13F Cerus Common Stock 157085101 78,240 -384 -0.49 282 -32.21 0.0005
2022-08-10 2022-06-30 13F CERUS COM 157085101 78,624 2,264 2.96 416 -0.72 0.0007
2022-05-13 2022-03-31 13F CERUS COM 157085101 76,360 -9,121 -10.67 419 -28.01 0.0006
2022-02-14 2021-12-31 13F CERUS COM 157085101 85,481 -711 -0.82 582 10.86 0.0008
2021-11-08 2021-09-30 13F CERUS COM 157085101 86,192 4,128 5.03 525 8.25 0.0007
2021-08-11 2021-06-30 13F CERUS COM 157085101 82,064 13,826 20.26 485 18.29 0.0007
2021-05-14 2021-03-31 13F CERUS COM 157085101 68,238 1,760 2.65 410 -10.87 0.0006
2021-02-10 2020-12-31 13F CERUS COM 157085101 66,478 -58,340 -46.74 460 -41.10 0.0010
2020-11-13 2020-09-30 13F CERUS COM 157085101 124,818 40,001 47.16 781 39.46 0.0019
2020-08-13 2020-06-30 13F CERUS COM 157085101 84,817 7,619 9.87 560 55.99 0.0015
2020-05-14 2020-03-31 13F CERUS COM 157085101 77,198 77,198 359 0.0012
2019-05-15 2019-03-31 13F CERUS COM 157085101 0 -17,000 -100.00 0 -100.00
2019-02-06 2018-12-31 13F CERUS COM 157085101 17,000 500 3.03 86 -27.73 0.0002
2018-11-15 2018-09-30 13F CERUS COM 157085101 16,500 16,500 119 0.0003
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.