ECARX Holdings, Inc.
ECARX Holdings, Inc. (ECX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ECX · as of Mar 31, 2025
Ownership Breakdown
46
Institutional Holders
▲ 21 vs Q4
$38.75M
Total Inst. Value
▲ $19.03M vs Q4
335.10M
Shares Outstanding
freeFloat 34.13%
31.34M
13F Shares Held
▲ 21.40M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ECX largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer integrated systems design | 5.07M | 1.52% | 1.52% | $6.39B | May 14, 2025 | — held |
BARCLAYS PLC services-computer integrated systems design | 3.17M | 95.16% | 95.16% | $3.99B | Mar 17, 2026 | ▲ 3.00M |
DEUTSCHE BANK AG\ services-computer integrated systems design | 2.95M | 88.82% | 88.82% | $3.72B | May 9, 2025 | NEW |
CITADEL ADVISORS LLC services-computer integrated systems design | 2.22M | 66.61% | 66.61% | $2.79B | May 15, 2025 | ▲ 2.18M |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP services-computer integrated systems design | 2.09M | 62.74% | 62.74% | $2.63B | May 14, 2025 | NEW |
VALLIANCE ASSET MANAGEMENT LTD services-computer integrated systems design | 1.79M | 53.73% | 53.73% | $2.25B | May 8, 2025 | NEW |
INFINI CAPITAL MANAGEMENT LTD services-computer integrated systems design | 1.59M | 47.84% | 47.84% | $2.00B | Apr 30, 2025 | NEW |
CENTIVA CAPITAL, LP services-computer integrated systems design | 1.50M | 45.10% | 45.10% | $1.89B | May 15, 2025 | NEW |
LIGHTHOUSE INVESTMENT PARTNERS, LLC services-computer integrated systems design | 1.50M | 45.10% | 45.10% | $1.89B | May 15, 2025 | NEW |
DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD. services-computer integrated systems design | 906.2K | 27.25% | 27.25% | $1.14B | May 15, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
13
Increased
+8.46M shares25
New Positions
first time holders4
Decreased
−204.9K shares4
Sold Out
fully exitedNet shares change (top 50)
+8.26M
+8.46M / −204.9K
Net new holders
+30
25 new / 4 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ECX insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Heng Jun Hong director | Sep 26, 2023 | Sale | 47,257 | $3.32 | $157.1K | 2.7K | Form 4 ↗ |
Heng Jun Hong director | Sep 27, 2023 | Sale | 2,743 | $3.24 | $8.9K | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
ECARX Holdings, Inc. (ECX) is primarily owned by institutional investors, who hold approximately 9.3% of total shares outstanding. Company insiders own approximately 65.87%, while retail and public investors account for the remaining 24.77%.
The largest institutional shareholder of ECARX Holdings, Inc. is SUSQUEHANNA INTERNATIONAL GROUP, LLP, holding approximately 5.07 million shares — equal to 1.52% of outstanding shares — as of March 31, 2025.
A total of 46 institutional investors currently hold ECX stock, with a combined institutional value of approximately $38,753,681 as of the most recent 13F filing period.
Frequently asked questions
ECX ownershipECARX Holdings, Inc. (ECX) is primarily owned by institutional investors, who hold approximately 9.3% of shares. The largest shareholder is SUSQUEHANNA INTERNATIONAL GROUP, LLP with a 1.52% stake. Company insiders hold 65.87%. Data sourced from SEC Form 13F as of March 31, 2025.