13FPulse
CS

CSTM Constellium SE

2026Q2 · CUSIP F21107101 · Sector: Materials

Piling in

Net holder growth ranks near the top of the market

Funds that own it
377
Institutions that reported holding it to the SEC
Net increase in holders
+68
Last quarter 309 → now 377
How unusual is that
Top 5%
Stronger buying than 97% of US stocks
What the filings say, in one paragraph

377 funds held CSTM at the end of 2026Q2, up 68 from the quarter before. That is stronger buying than 96.7% of US stocks — among the most piled-into names this quarter. On the business itself, revenue over the last 12 months was $8.9B(YoY +20.1%), return on equity is 38.9%. CSTM has had 6 buying rushes in its history. It sits in the Materials sector.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2014Q3: holders=1 2015Q1: holders=1 2019Q4: holders=153 2020Q1: holders=131 2020Q2: holders=129 2020Q3: holders=123 2020Q4: holders=133 2021Q1: holders=128 2021Q2: holders=142 2021Q3: holders=153 2021Q4: holders=154 2022Q1: holders=176 2022Q2: holders=180 2022Q3: holders=175 2022Q4: holders=183 2023Q1: holders=178 2023Q2: holders=185 2023Q3: holders=190 2023Q4: holders=191 2024Q1: holders=203 2024Q2: holders=221 2024Q3: holders=219 2024Q4: holders=219 2025Q1: holders=218 2025Q2: holders=221 2025Q3: holders=236 2025Q4: holders=250 2026Q1: holders=309 2026Q2: holders=377 -152 -76 +0 +76 +152 0198396 14Q320Q120Q421Q322Q223Q123Q424Q325Q226Q126Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 6 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2026Q2 Top 5%
2026Q1 Top 5%
2024Q2 Top 20%
2022Q1 Top 10%
2021Q3 Top 20%
2019Q4 Top 5%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
185
Change in large funds
+34
Total value they hold
$3.8B
Funds buying for the first time
109
Funds that sold out entirely
41
Price change that quarter
Funds holding puts (bearish)
5
Funds holding calls (bullish)
6

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
EPS (TTM)
$3.08
EPS YoY
+516.0%
Revenue (TTM)
$8.9B
Revenue YoY
+20.1%
Net margin
4.9%
ROE
38.9%
Debt ratio
80.6%
FCF (TTM)
$171M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2024-03-31: EPS 0.14 2024-06-30: EPS 0.51 2024-09-30: EPS 0.05 2024-12-31: EPS -0.32 2025-03-31: EPS 0.26 2025-06-30: EPS 0.25 2025-09-30: EPS 0.62 2025-12-31: EPS 0.79 2026-03-31: EPS 1.42 0B 1.2B 2.5B $B -0.35 0.61 1.56 202420252026 Revenue EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

Quarterly free cash flow
-90M10M109M 202420252026
Latest quarter $1M (2026-03-31)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-03-31 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.