Constellium SE
DE ˙ DB ˙ FR0013467479
30,20 € ↓ -0,20 (-0,66%)
2026-06-04
DEL PRIS
SecurityDE:3OK / Constellium SE
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership181,470 shares
Latest Disclosed Value $ 4,460,533
Mackenzie Financial Corp reports 36.81% increase in ownership of 3OK / Constellium SE

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 181,470 shares of Constellium SE (DE:3OK) valued at $3,810,870 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 132,642 shares of Constellium SE. This represents a change in shares of 36.81% during the quarter. The current value of the position is $5,480,394 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 CONSTELLIUM SE CL A SHS F21107101 181,470 48,828 36.81 4,461 77.62 0.0054
2026-02-18 2025-12-31 13F CONSTELLIUM SE CL A SHS F21107101 132,642 512 0.39 2,511 27.72 0.0030
2025-11-13 2025-09-30 13F CONSTELLIUM SE CL A SHS F21107101 132,130 116,359 737.80 1,966 840.67 0.0024
2025-08-13 2025-06-30 13F CONSTELLIUM SE CL A SHS F21107101 15,771 0 0.00 210 31.45 0.0003
2025-05-07 2025-03-31 13F CONSTELLIUM SE CL A SHS F21107101 15,771 0 0.00 159 -1.24 0.0002
2025-05-02 2024-12-31 13F/A-2 CONSTELLIUM SE CL A SHS F21107101 15,771 0 0.00 162 -37.11 0.0002
2025-02-20 2024-12-31 13F/A-1 CONSTELLIUM SE CL A SHS F21107101 15,771 0 162 0.0002
2025-02-14 2024-12-31 13F Constellium SE Common Stock F21107101 15,771 0 155 0.0002
2024-11-13 2024-09-30 13F CONSTELLIUM SE CL A SHS F21107101 15,771 -1,876 -10.63 256 -22.89 0.0004
2024-08-14 2024-06-30 13F CONSTELLIUM SE CL A SHS F21107101 17,647 17,647 333 0.0005
2024-01-30 2023-12-31 13F CONSTELLIUM SE CL A SHS F21107101 0 -15,617 -100.00 0 -100.00
2023-10-25 2023-09-30 13F CONSTELLIUM SE CL A SHS F21107101 15,617 15,617 268 0.0005
2023-08-03 2023-06-30 13F CONSTELLIUM SE CL A SHS F21107101 0 -13,968 -100.00 0 -100.00
2023-04-24 2023-03-31 13F CONSTELLIUM SE CL A SHS F21107101 13,968 13,968 213 0.0003
2023-02-14 2022-12-31 13F Constellium SE Common Stock F21107101 0 -14,606 -100.00 0 -100.00
2022-10-07 2022-09-30 13F Constellium SE Common Stock F21107101 14,606 -4,351 -22.95 148 -40.80 0.0003
2022-08-10 2022-06-30 13F CONSTELLIUM SE CL A SHS F21107101 18,957 -1,255 -6.21 250 -31.32 0.0004
2022-05-13 2022-03-31 13F CONSTELLIUM SE CL A SHS F21107101 20,212 20,212 364 0.0005
2022-02-14 2021-12-31 13F CONSTELLIUM SE CL A SHS F21107101 0 -60,268 -100.00 0 -100.00
2021-11-08 2021-09-30 13F CONSTELLIUM SE CL A SHS F21107101 60,268 60,268 1,132 0.0016
2021-05-14 2021-03-31 13F CONSTELLIUM SE CL A SHS F21107101 0 -1,010,100 -100.00 0 -100.00
2021-02-10 2020-12-31 13F CONSTELLIUM SE CL A SHS F21107101 1,010,100 644,500 176.29 14,131 392.37 0.0305
2020-11-13 2020-09-30 13F CONSTELLIUM SE CL A SHS F21107101 365,600 115,800 46.36 2,870 49.64 0.0071
2020-08-13 2020-06-30 13F CONSTELLIUM SE CL A SHS F21107101 249,800 123,400 97.63 1,918 191.05 0.0051
2020-05-14 2020-03-31 13F CONSTELLIUM SE CL A SHS F21107101 126,400 0 0.00 659 -61.10 0.0021
2020-02-13 2019-12-31 13F CONSTELLIUM SE CL A SHS F21107101 126,400 126,400 1,694 0.0042
2015-05-13 2015-03-31 13F CONSTELLIUM CL A N22035104 0 -28,200 -100.00 0 -100.00
2015-02-11 2014-12-31 13F CONSTELLIUM CL A N22035104 28,200 700 2.55 463 -31.61 0.0024
2014-11-12 2014-09-30 13F CONSTELLIUM CL A N22035104 27,500 -299,500 -91.59 677 -89.33 0.0034
2013-11-12 2013-09-30 13F CONSTELLIUM HOLDCO B V CL A N22035104 327,000 327,000 6,344 0.0321
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.