How many insider trades does FilingIQ track for CSTM?

FilingIQ tracks 46 Form 4 insider transactions for CSTM (CONSTELLIUM SE), covering filings from Feb 20, 2026 onwards. 46 of those were filed in the last 90 days.

Are CSTM insiders net buyers or net sellers?

Across the full Form 4 history for CSTM, 5 transactions (11%) were open-market purchases and 23 (50%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does CSTM insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is CSTM in?

CONSTELLIUM SE (CSTM) is classified in the Basic Materials sector, specifically Aluminum, with a current market capitalisation of $3.54B.

CSTM insider trading

NYSE Basic Materials

CONSTELLIUM SE — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

Last 90 days

Buys / sells

11% / 50%

Market cap

$3.54B

About CONSTELLIUM SE

Constellium SE, together with its subsidiaries, engages in the design, manufacture, and sale of rolled and extruded aluminum products for the aerospace, packaging, automotive, commercial transportation, general industrial, and defense end-markets. The company operates through three segments: Packaging & Automotive Rolled Products, Aerospace & Transportation, and Automotive Structures & Industry. The Packaging & Automotive Rolled Products segment produces and develops rolled aluminum products, including canstock and closure stock for the beverage and food industry, as well as foil stock for the flexible packaging market. This segment also supplies automotive body sheets, heat exchangers, and battery foil products for the automotive market. The Aerospace & Transportation segment provides aluminum products including plate, sheet, and extrusions to aerospace, space, commercial transportation, general industrial, and defense sectors. The Automotive Structures & Industry segment offers structural solutions for the automotive industry including crash management systems, body structures, side impact beams, and battery enclosure components; soft and hard alloy extrusions for automotive, transportation, and general industrial applications; and profiles for rail and general industrial applications. This segment also provides downstream technology and services, which include pre-machining, surface treatment, research and development, and technical support services. It sells its products directly or through distributors in France, Germany, the Czech Republic, the United Kingdom, Switzerland, and the United States, as well as South Korea and China. The company was incorporated in 2010 and is headquartered in Paris, France.

Company website: www.constellium.com

CSTM insider activity at a glance

FilingIQ has scored 46 insider transactions for CSTM since Feb 20, 2026. The most recent filing in our index is dated May 12, 2026.

Across the full history, 5 open-market purchases and 23 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on CSTM insider trades is 60.3/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live CSTM trades on FilingIQ Raw filings on SEC EDGAR

Other Basic Materials tickers with recent insider activity

Axalta Coating Systems Ltd.

INTERNATIONAL FLAVORS & FRAGRANCES INC

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MATERION Corp

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LyondellBasell Industries N.V.

13F funds holding CSTM

Rubric Capital Management LP

$35.57M · 1.3% of AUM

Frequently asked

How many insider trades does FilingIQ track for CSTM?: FilingIQ tracks 46 Form 4 insider transactions for CSTM (CONSTELLIUM SE), covering filings from Feb 20, 2026 onwards. 46 of those were filed in the last 90 days.
Are CSTM insiders net buyers or net sellers?: Across the full Form 4 history for CSTM, 5 transactions (11%) were open-market purchases and 23 (50%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does CSTM insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is CSTM in?: CONSTELLIUM SE (CSTM) is classified in the Basic Materials sector, specifically Aluminum, with a current market capitalisation of $3.54B.

Methodology & sources

Every CSTM insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.