How many institutional investors hold CSTM?

2 tracked institutional investors disclosed a position in CSTM (CONSTELLIUM SE) in their most recent 13F filing.

Who is the largest institutional holder of CSTM?

Ray Dalio, Bridgewater Associates, holds the largest disclosed position in CSTM, valued at $12M.

Where does this CSTM ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

CSTM — CONSTELLIUM SE

Name: CONSTELLIUM SE (CSTM) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About CONSTELLIUM SE (CSTM)

CONSTELLIUM SE (CSTM) appears in the most recent 13F filings of 2 tracked institutional investors. The largest disclosed position is held by Ray Dalio (Bridgewater Associates), valued at $12M. Across recent filings, tracked investors recorded 1 new positions, 0 increased, 0 reduced, and 0 exited. All data sourced from SEC 13F filings.

Tracked investors reporting CSTM

Investor	Firm	Shares	Market value	% of portfolio	As of
Ray Dalio	Bridgewater Associates	503K	$12.4M	0.06%	Mar 31, 2026
Ken Griffin	Citadel Advisors	294.6K	$5.6M	0.00%	Dec 31, 2025

Ray DalioMar 31, 2026
Bridgewater Associates
Shares
503K
Value
$12.4M
% Portfolio
0.06%
Ken GriffinDec 31, 2025
Citadel Advisors
Shares
294.6K
Value
$5.6M
% Portfolio
0.00%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Ray Dalio	New	—	$12.4M	May 15, 2026

Ray Dalio
New
$12.4MMay 15, 2026

Frequently asked questions

How many institutional investors hold CSTM?: 2 tracked institutional investors disclosed a position in CSTM (CONSTELLIUM SE) in their most recent 13F filing.
Who is the largest institutional holder of CSTM?: Ray Dalio, Bridgewater Associates, holds the largest disclosed position in CSTM, valued at $12M.
Did institutional ownership of CSTM increase or decrease?: Across recent 13F filings, tracked investors recorded 1 new positions, 0 increased, 0 reduced, and 0 fully exited CSTM.
Where does this CSTM ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.