CONSTELLIUM SE

$CSTM
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Smart money positioned

7 of the Top-200 alpha managers hold $CSTM as of the latest 13F snapshot.

13F holders
11
Insider buys · 90d
1code P
Congress · 90d
0

Smart Money · top-200 alpha cohort

7 holders · Q1 2026

$CSTM is held by 7 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.11%, with an average of 0.03% of portfolio. Largest holder: Merrion Investment Management Co, LLC at 0.11%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

01
Merrion Investment Management Co, LLC
0.11% NEW
α +16.0pts
02
Quarry Hill Advisors, LLC
0.06% held
α +11.4pts
03
Burgundy Asset Management Ltd.
0.04% held
α +10.8pts
04
Hamel Associates, Inc.
0.01% held
α +12.3pts
05
PCJ Investment Counsel Ltd.
0.00% held
α +18.9pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 11 · Source: 13F-HR
01
Vanguard Group Inc.
—
4,054,982 sh
02
State Street
—
2,954,799 sh
03
Brightline Capital Management, LLC
13.73% of portfolio
1,923,000 sh
04
Citadel
0.01% of portfolio
474,311 sh
05
Two Sigma
0.01% of portfolio
365,357 sh
06
Bridgewater Associates
0.04% of portfolio
311,558 sh
07
Tudor Investment Corp. Et Al
0.02% of portfolio
116,725 sh
08
Citigroup Inc.
—
113,360 sh
09
Ionic Capital Management LLC
3.76% of portfolio
109,822 sh
10
WINTON GROUP Ltd
0.02% of portfolio
15,000 sh
See all 11 13F holders · Pro →

Insider activity · last 90 days

50 transactions · 19 filers
03 Aug 2026
Unknown —
▲ BOUGHT
—
—
P
13 Jul 2026
Unknown —
· F
—
—
F
04 Jun 2026
Ormerod John —
▼ SOLD
8,000
$35.01
S
28 May 2026
Becker Marcus —
▼ SOLD
10,391
$34.93
S
14 May 2026
Soultz Bradley Lee —
▲ BOUGHT
2,500
$33.84
P
14 May 2026
Jarrett Martin —
▼ SOLD
4,716
$33.46
S
12 May 2026
Piquier Ludovic —
▼ SOLD
1,000
$33.57
S
11 May 2026
Brun Nicolas —
▼ SOLD
26,661
$33.85
S
08 May 2026
Corre Stephane —
▼ SOLD
5,000
$33.52
S
05 May 2026
Guo Jack Q. —
▼ SOLD
25,201
$32.61
S
05 May 2026
Brandjes Michiel —
▼ SOLD
10,400
$31.25
S
01 May 2026
Hoffmann Philippe —
▼ SOLD
50,000
$31.92
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $CSTM in the recent window.

Convergence · $CSTM

Pattern cards reflect public SEC EDGAR and Congressional filing data only. Detection uses filing dates; trade execution dates may differ. Past convergence patterns do not predict future returns. Nothing here is investment advice.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 16:45 UTC.