Constellium Se (CSTM) Hedge Fund Ownership (Q1 2026)

Q: Is it too late to buy Constellium Se (CSTM) following the 2026 Q2 hedge fund 13F filings?

As of today, CSTM has moved +0.0% since the 2026 Q2 13F filing date (August 14, 2026), compared to +0.0% for the SPY sector ETF — an outperformance of +0.0%. Since the quarter end (June 30, 2026), CSTM gained -7.1% vs +4.0% for SPY. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Constellium Se (CSTM)

305 + Investors. Track Smart Money conviction in CSTM. See who's accumulating, reducing, or initiating positions.

Smart Money Signals — CSTM

Based on 307 hedge funds · latest filing: 2026 Q1 · updated quarterly

📈

Buying streak — 4 quarters in a row

last 6Q

For 4 consecutive quarters, more hedge funds added CSTM than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

🏔️

At the ownership peak (100% of max)

100% of all-time peak

307 hedge funds hold CSTM right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.

🚀

Fast accumulation — +39% more funds vs a year ago

fund count last 6Q

+86 new funds entered over the past year (+39% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.

🟢

More buyers than sellers — 64% buying

198 buying113 selling

Last quarter: 198 funds were net buyers (83 opened a brand new position + 115 added to an existing one). Only 113 were sellers (85 trimmed + 28 sold completely). A clear majority buying is a strong confirmation signal.

📈

More new buyers each quarter (+41 vs last Q)

new funds entering per quarter

Funds opening a new CSTM position: 44 → 39 → 42 → 83. A growing influx of new institutional buyers means the asset is still gathering momentum — the consensus hasn't fully saturated yet.

🔒

46% of holders stayed for 2+ years

■ 46% conviction (2yr+) ■ 23% medium ■ 31% new

140 out of 307 hedge funds have held CSTM for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

💰

Value +24% but shares only +3% — price-driven

Value

+24%

+3%

Last quarter: the total dollar value of institutional holdings rose +24%, but actual share count only changed +3%. The gap is explained by the stock's price rising — not new buying. Strong value growth with weak share growth means the rally is price momentum, not fresh institutional demand.

🚀

Acceleration phase — new buyers rushing in

35 → 44 → 39 → 42 → 83 new funds/Q

New funds entering each quarter: 44 → 39 → 42 → 83. The pace of institutional discovery is accelerating sharply. This is the 'hot idea' phase — the thesis is being passed from fund to fund. You are not late — the accumulation wave is still building.

🏛️

Veteran-anchored — 54% veterans vs 35% newcomers

■ 54% veterans ■ 11% 1-2yr ■ 35% new

Entry-cohort mix of 315 holders: 171 (54%) are 2+ year veterans, 35 entered 1–2 years ago, and 109 (35%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.

🏆

Elite ownership — 49% AUM from top-100 funds

49% from top-100 AUM funds

52 of 306 holders are among the 100 largest funds by AUM, controlling 49% of total institutional value in CSTM. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

4.3

out of 10

Moderate Exit Risk

Exit risk score 4.3/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Metric	All 13F Filers (2026 Q1)	Prior (2025 Q4)	Change
Funds Holding	305	251	21.51%
13F Shares	124M	120M	3.12%
Total Value	$2.80B	$2.26B	24.12%
New Positions	81	41	+40
Increased Positions	115	83	+32
Closed Positions	27	25	+2
Reduced Positions	82	96	-14
Total Calls	5	6	-16.67%
Total Puts	4	3	33.33%
PUT/CALL Ratio	0.8	0.5	Neutral

Metric

All 13F Filers (2026 Q1)

Prior (2025 Q4)

Change

Funds Holding

305

251

21.51%

13F Shares

124M

120M

3.12%

Total Value

$2.80B

$2.26B

24.12%

New Positions

+40

Increased Positions

115

+32

Closed Positions

Reduced Positions

-14

Total Calls

-16.67%

Total Puts

33.33%

PUT/CALL Ratio

0.8

0.5

Neutral

Institutional Holders (2026 Q2)

305 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in CSTM. Verified SEC 13F-HR filings.

QUARTER:

2026 Q2 filings are still coming in. Only funds that have filed so far are shown — top holders may not have reported yet. Full 13F data typically settles by ~50 days after quarter-end.

FILTER:All New Added To Reduced No Change | Overweight >5%

Top 25 CSTM holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
#	Investor	% of Portfolio	Shares	Mkt Value
1	Bpifrance SA	19.67%	8,403,903	$267.8M
2	Brightline Capital Management, LLC	13.28%	1,923,000	$61.3M
3	Mountaineer Partners Management, LLC	11.64%	482,130	$15.4M
4	Beaconlight Capital, LLC	8.78%	779,899	$24.9M
5	Kailix Advisors LLC	8.56%	278,200	$8.9M
6	Bayberry Capital Partners LP	7.19%	655,000	$20.9M
7	Soapstone Management L.P.	4.64%	200,000	$6.4M
8	Beacon Investment Advisors LLC	3.27%	326,719	$10.4M
9	Encompass Capital Advisors LLC	2.75%	2,421,349	$77.2M
10	Rockingstone Advisors LLC	2.20%	171,808	$5.5M
11	Kinetic Partners Management, LP	1.93%	2,542,400	$81.0M
12	Penn Capital Management Company, LLC	1.52%	749,645	$23.9M
13	Senator Investment Group LP	1.26%	1,083,489	$34.5M
14	Semanteon Capital Management, LP	1.05%	7,299	$233K
15	Eddie Patel Inc	1.03%	53,958	$1.7M
16	Cvfg LLC	0.89%	266,220	$8.5M
17	Bellars Harris Wealth Management, LLC	0.73%	112,168	$3.6M
18	Occudo Quantitative Strategies LP	0.71%	416,403	$13.3M
19	Ionic Capital Management LLC	0.51%	109,822	$3.5M
20	ArrowMark Colorado Holdings LLC	0.37%	277,217	$8.8M
21	Islay Capital Management, LLC	0.36%	24,269	$773K
22	Navellier & Associates Inc	0.35%	138,449	$4.4M
23	Precision Wealth Strategies, LLC	0.33%	34,195	$1.1M
24	Virtus Advisers, LLC	0.33%	26,653	$849K
25	Hennessy Advisors Inc	0.30%	294,500	$9.4M

Investor	Ownership History	% of Portfolio	Prev %	Rank	Conviction	Avg Buy Price	13F Score™ 3Y / 7Y	Sell Timing	Shares	Mkt Value	Change	Change %	Source	Quarter	Filed

Frequently Asked Questions — Constellium Se (CSTM)

What does the Smart Money Trend signal show for CSTM?

Buying streak — 4 quarters in a row: For 4 consecutive quarters, more hedge funds added CSTM than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for CSTM?

More buyers than sellers — 64% buying: Last quarter: 198 funds were net buyers (83 opened a brand new position + 115 added to an existing one). Only 113 were sellers (85 trimmed + 28 sold completely). A clear majority buying is a strong confirmation signal.

What is the fund quality score for CSTM holders?

Elite ownership — 49% AUM from top-100 funds: 52 of 306 holders are among the 100 largest funds by AUM, controlling 49% of total institutional value in CSTM. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

How long have hedge funds held CSTM?

46% of holders stayed for 2+ years: 140 out of 307 hedge funds have held CSTM for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

Is it too late to buy Constellium Se (CSTM) following the 2026 Q2 hedge fund 13F filings?

As of today, CSTM has moved +0.0% since the 2026 Q2 13F filing date (August 14, 2026), compared to +0.0% for the SPY sector ETF — an outperformance of +0.0%. Since the quarter end (June 30, 2026), CSTM has gained -7.1% vs +4.0% for SPY. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

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Constellium Se (CSTM)

Smart Money Signals — CSTM

Buying streak — 4 quarters in a row

At the ownership peak (100% of max)

Fast accumulation — +39% more funds vs a year ago

More buyers than sellers — 64% buying

More new buyers each quarter (+41 vs last Q)

46% of holders stayed for 2+ years

Value +24% but shares only +3% — price-driven

Acceleration phase — new buyers rushing in

Veteran-anchored — 54% veterans vs 35% newcomers

Elite ownership — 49% AUM from top-100 funds

Institutional Sentiment Summary — CSTM

Hedge Fund Ownership: CSTM

Market Analysis: CSTM

Analyst Price Targets

Analyst Recommendations

Stock Performance

Company Profile: CSTM

Is It Too Late to Buy Constellium Se (CSTM) Based on Hedge Fund 13F Filings?

Hedge Fund Positioning: CSTM

Statistics: CSTM

Valuation Measures Data as of: --

Financial Highlights

Institutional Holders (2026 Q2)

Frequently Asked Questions — Constellium Se (CSTM)

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