Constellium SE
US ˙ NYSE ˙ FR0013467479

SecurityCSTM / Constellium SE
InstitutionDynamic Technology Lab Private Ltd
Latest Disclosed Ownership44,413 shares
Latest Disclosed Value $ 1,091,672
Dynamic Technology Lab Private Ltd reports 136.28% increase in ownership of CSTM / Constellium SE

On May 15, 2026 - Dynamic Technology Lab Private Ltd filed a 13F-HR form disclosing ownership of 44,413 shares of Constellium SE (US:CSTM) valued at $1,091,672 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 18,797 shares of Constellium SE. This represents a change in shares of 136.28% during the quarter. The current value of the position is $1,592,650 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)
2026-05-15 2026-03-31 13F CONSTELLIUM SE CL A SHS F21107101 44,413 25,616 136.28 1,092 208.19 0.1774
2026-02-13 2025-12-31 13F CONSTELLIUM SE CL A SHS F21107101 18,797 -17,610 -48.37 354 -34.69 0.0802
2025-11-13 2025-09-30 13F CONSTELLIUM SE CL A SHS F21107101 36,407 11,636 46.97 542 64.74 0.0918
2025-08-12 2025-06-30 13F CONSTELLIUM SE CL A SHS F21107101 24,771 -22,097 -47.15 329 -30.44 0.0447
2025-05-16 2025-03-31 13F CONSTELLIUM SE CL A SHS F21107101 46,868 26,817 133.74 473 129.61 0.0685
2025-02-13 2024-12-31 13F CONSTELLIUM SE CL A SHS F21107101 20,051 -99,742 -83.26 206 -89.43 0.0331
2024-11-13 2024-09-30 13F CONSTELLIUM SE CL A SHS F21107101 119,793 83,112 226.58 1,948 0.2062
2024-08-15 2024-06-30 13F CONSTELLIUM SE CL A SHS F21107101 36,681 36,681 1 0.0780
2024-05-14 2024-03-31 13F CONSTELLIUM SE CL A SHS F21107101 0 -16,442 -100.00 0 0.0000
2024-02-09 2023-12-31 13F CONSTELLIUM SE CL A SHS F21107101 16,442 -603 -3.54 0 0.0347
2023-11-14 2023-09-30 13F CONSTELLIUM SE CL A SHS F21107101 17,045 17,045 0 0.0310
2023-08-14 2023-06-30 13F CONSTELLIUM SE CL A SHS F21107101 0 -24,303 -100.00 0 0.0000
2023-05-12 2023-03-31 13F CONSTELLIUM SE CL A SHS F21107101 24,303 24,303 0 0.0342
2022-11-14 2022-09-30 13F CONSTELLIUM SE CL A SHS F21107101 0 -122,070 -100.00 0 -100.00
2022-08-12 2022-06-30 13F CONSTELLIUM SE CL A SHS F21107101 122,070 111,147 1,017.55 1,613 718.78 0.1823
2022-05-16 2022-03-31 13F CONSTELLIUM SE CL A SHS F21107101 10,923 10,923 197 0.0232
2021-11-15 2021-09-30 13F CONSTELLIUM SE CL A SHS F21107101 0 -19,429 -100.00 0 -100.00
2021-08-13 2021-06-30 13F CONSTELLIUM SE CL A SHS F21107101 19,429 -17,911 -47.97 368 -32.97 0.0370
2021-05-14 2021-03-31 13F CONSTELLIUM SE CL A SHS F21107101 37,340 17,770 90.80 549 100.36 0.0620
2021-02-11 2020-12-31 13F CONSTELLIUM SE CL A SHS F21107101 19,570 19,570 274 0.0443
2020-05-13 2020-03-31 13F CONSTELLIUM SE CL A SHS F21107101 0 -23,318 -100.00 0 -100.00
2020-02-14 2019-12-31 13F CONSTELLIUM SE CL A SHS F21107101 23,318 -7,266 -23.76 312 -19.79 0.0500
2019-11-14 2019-09-30 13F CONSTELLIUM SE CL A N22035104 30,584 10,847 54.96 389 96.46 0.0683
2019-08-14 2019-06-30 13F CONSTELLIUM CL A N22035104 19,737 7,424 60.29 198 102.04 0.0333
2019-05-13 2019-03-31 13F CONSTELLIUM CL A N22035104 12,313 -20,067 -61.97 98 -56.64 0.0161
2019-02-13 2018-12-31 13F CONSTELLIUM CL A N22035104 32,380 32,380 226 0.0391
2018-11-14 2018-09-30 13F CONSTELLIUM CL A N22035104 0 -16,308 -100.00 0 -100.00
2018-08-14 2018-06-30 13F CONSTELLIUM CL A N22035104 16,308 -8,782 -35.00 168 -38.24 0.0253
2018-06-14 2018-03-31 13F/A-1 CONSTELLIUM CL A N22035104 25,090 25,090 272 0.0405
2018-02-09 2017-12-31 13F CONSTELLIUM CL A N22035104 0 -52,087 -100.00 0 -100.00
2017-11-08 2017-09-30 13F CONSTELLIUM CL A N22035104 52,087 40,023 331.76 534 543.37 0.0867
2017-08-17 2017-06-30 13F CONSTELLIUM CL A N22035104 12,064 12,064 83 0.0157
2017-05-11 2017-03-31 13F CONSTELLIUM CL A N22035104 0 -17,822 -100.00 0 -100.00
2017-02-13 2016-12-31 13F CONSTELLIUM CL A N22035104 17,822 -27,834 -60.96 105 -68.09 0.0282
2016-11-14 2016-09-30 13F CONSTELLIUM CL A N22035104 45,656 13,895 43.75 329 120.81 0.0882
2016-08-10 2016-06-30 13F CONSTELLIUM CL A N22035104 31,761 31,761 0.00 149 0.0403
2016-05-18 2016-03-31 13F CONSTELLIUM CL A N22035104 0 -69,216 -100.00 0 -100.00
2016-02-11 2015-12-31 13F CONSTELLIUM CL A N22035104 69,216 43,120 165.24 533 226.99 0.2283
2015-11-16 2015-09-30 13F CONSTELLIUM CL A N22035104 26,096 18,223 231.46 163 -29.13 0.0888
2016-02-24 2014-03-31 13F/A-1 CONSTELLIUM CL A N22035104 7,873 7,873 230 0.2634
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.