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Ken Fisher's Constellium SE (CSTM) position

Yes: as of Q1 2026, Ken Fisher holds 539K shares of CSTM worth $13M (0.0% of the disclosed portfolio). Last quarter the position was increased by over 1,000%. First disclosed Q4 2025.
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Current value
$13M
Shares held
539K
% of portfolio
0.0%
Est. average buy price (i)
$23.66
Quarter-end price
$24.58

Estimated trade prices

Average price in quarters with purchases
$23.66

CSTM price vs Fisher's position

1Y 3Y 5Y MAX
Dates
$7$20$4020222023202420252026New position of 10K shares · Q4 2025. Average closing price $16.60 · Price range $14.41–$19.1710KsharespurchasedAdded 529K shares (over 1,000%) · Q1 2026. Average closing price $23.79 · Price range $19.54–$26.63529Ksharespurchased
Average closing price · filing quarter
$23.79
Price range · filing quarter
$19.54 – $26.63
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +529K +$13M +5,202.8% 539K May 5, 2026
Q4 2025 New +10K +$169K – 10K Feb 9, 2026
Data through Q1 2026 · filed May 5, 2026
2 grouped rows from 2 quarters

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Common questions

Does Ken Fisher own CSTM?

Yes. As of Q1 2026, Ken Fisher disclosed 539K shares of CSTM, worth $13M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Fisher buy CSTM?

Ken Fisher first disclosed a CSTM position in Q4 2025; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Fisher sell CSTM?

The quarter-by-quarter table above shows each sale and reduction Ken Fisher disclosed in CSTM. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of CSTM does Ken Fisher own?

Ken Fisher disclosed 539K shares of CSTM as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Fisher pay for CSTM?

Ken Fisher's estimated average buy price for CSTM is $23.66, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.