Janus Henderson Group Plc ownership in 3OK / Constellium SE

Constellium SE

DE ˙ DB ˙ FR0013467479

30,20 € ↓ −0,20 (−0,66%)

2026-06-04
DELAT PRIS

Security	DE:3OK / Constellium SE
Institution	Janus Henderson Group Plc
Latest Disclosed Ownership	6,152,955 shares
Ownership	146,819,884.00%

2024-11-14 - Janus Henderson Group Plc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 6,152,955 shares of Constellium SE (DE:3OK). This represents 1.46819884E8 percent ownership of the company. In their previous filing dated 2024-02-13 , Janus Henderson Group Plc had reported owning 10,353,296 shares, indicating a decrease of -40.57 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2024-11-14	2024-11-14	13G/A	10,353,296	6,152,955	-40.57	146,819,884.00	2,067,885,590.14
2024-02-13	2024-02-13	13G/A		10,353,296		7.10
2023-02-10	2023-02-10	13G/A		10,407,176		7.30
2022-02-10	2022-02-10	13G/A		9,943,448		7.10
2021-02-12	2021-02-12	13G		7,579,444		5.50

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-18	2026-03-31	13F/A-1	CONSTELLIUM SE	CL A SHS	F21107101	439,301	389,147	775.90	10,797	1,041.33	0.0018
2026-05-15	2026-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	439,301	389,147	775.90	10,797	1,041.33	0.0020
2026-02-17	2025-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	50,154	-1,760,278	-97.23	946	-96.49	0.0004
2025-11-14	2025-09-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	1,810,432	-480,795	-20.98	26,939	-11.60	0.0123
2025-08-14	2025-06-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	2,291,227	46,800	2.09	30,473	31.82	0.0149
2025-05-15	2025-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	2,244,427	-4,200,863	-65.18	23,118	-65.08	0.0127
2025-02-14	2024-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	6,445,290	292,335	4.75	66,193	-33.84	0.0336
2024-11-14	2024-09-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	6,152,955	971	0.02	100,047	-13.73	0.0512
2024-08-14	2024-06-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	6,151,984	-4,171,380	-40.41	115,965	-49.19	0.0621
2024-05-15	2024-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,323,364	-29,932	-0.29	228,250	10.45	0.1245
2024-02-14	2023-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,353,296	11,527	0.11	206,652	9.79	0.1233
2023-11-14	2023-09-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,341,769	-307,293	-2.89	188,220	2.76	0.1233
2023-08-14	2023-06-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,649,062	-682	-0.01	183,164	12.56	0.1139
2023-05-15	2023-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,649,744	242,568	2.33	162,728	32.17	0.1073
2023-02-14	2022-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,407,176	637,233	6.52	123,117	24.28	0.0879
2023-01-13	2022-09-30	13F/A-1	CONSTELLIUM SE	CL A SHS	F21107101	9,769,943	420,993	4.50	99,067	-19.78	0.0742
2022-11-14	2022-09-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	9,769,943	420,993		99,067		0.0252
2022-08-15	2022-06-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	9,348,950	154,842	1.68	123,500	-25.37	0.0852
2022-05-16	2022-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	9,194,108	-749,340	-7.54	165,494	-7.07	0.0799
2022-02-14	2021-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	9,943,448	-153,524	-1.52	178,087	-6.08	0.0743
2021-11-16	2021-09-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	10,096,972	546,542	5.72	189,621	4.77	0.0829
2021-08-16	2021-06-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	9,550,430	-298,702	-3.03	180,981	25.00	0.0775
2021-05-17	2021-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	9,849,132	2,269,688	29.95	144,782	36.54	0.0661
2021-02-16	2020-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	7,579,444	-888,147	-10.49	106,036	59.52	0.0493
2020-11-16	2020-09-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	8,467,591	286,350	3.50	66,471	5.79	0.0347
2020-08-14	2020-06-30	13F	CONSTELLIUM SE	CL A SHS	F21107101	8,181,241	-313,296	-3.69	62,832	41.97	0.0353
2020-05-14	2020-03-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	8,494,537	1,912,594	29.06	44,257	-49.82	0.0305
2020-02-18	2019-12-31	13F	CONSTELLIUM SE	CL A SHS	F21107101	6,581,943	1,332,867	25.39	88,198	32.20	0.0452
2019-11-14	2019-09-30	13F	CONSTELLIUM SE	CL A	N22035104	5,249,076	-3,111	-0.06	66,716	26.52	0.0361
2019-07-31	2019-06-30	13F	CONSTELLIUM	CL A	N22035104	5,252,187	521,574	11.03	52,732	39.69	0.0287
2019-04-30	2019-03-31	13F	CONSTELLIUM	CL A	N22035104	4,730,613	594	0.01	37,750	14.18	0.0209
2019-02-06	2018-12-31	13F	CONSTELLIUM	CL A	N22035104	4,730,019	825,726	21.15	33,063	-31.43	0.0211
2018-11-09	2018-09-30	13F	CONSTELLIUM	CL A	N22035104	3,904,293	523,458	15.48	48,218	38.47	0.0258
2018-08-10	2018-06-30	13F	CONSTELLIUM	CL A	N22035104	3,380,835	-2,517	-0.07	34,823	-5.14	0.0198
2018-05-14	2018-03-31	13F	CONSTELLIUM	CL A	N22035104	3,383,352	-755,747	-18.26	36,709	-20.46	0.0216
2018-03-12	2017-12-31	13F/A-1	CONSTELLIUM	CL A	N22035104	4,139,099	4,139,099		46,151		0.0284
2018-02-09	2017-12-31	13F	CONSTELLIUM	CL A	N22035104	4,139,099			46,151		0.0284

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.