ECX
ECARX Holdings Inc.Company with tickers: ECX, ECXWW
CIK
1861974
CUSIP
G29201103
Shares Outstanding
335,099,068
13F Activity (30d)
35 filings
34 filers
Holders: 39
Total Value: $16,627,648
Total Shares: 17,001,702
Institutional Ownership Trend
Holder Concentration
Across 39 13F filers · Δ vs Dec 31, 2025Top Holder
29.8%
+6.7 pts
Top 5
68.3%
+5.2 pts
Top 10
87.4%
+3.0 pts
HHI
1,377
Broadly held
+322
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
13
Decreased
14
Sold Out
8
Unchanged
6
Holder count:
-2
Institutional value:
-55.9%
Shares held:
-22.4%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Large MARSHALL WACE, LLP | +510,285 | 758,117 | |
| Mid XTX Topco Ltd | +180,209 | 214,568 | |
| Large RENAISSANCE TECHNOLOGIES LLC | +173,500 | 2,015,600 | |
| Large TUDOR INVESTMENT CORP ET AL | +61,062 | 2,195,151 | |
| Mega BlackRock, Inc. | +45,234 | 193,681 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | −2,440,670 | 22,937 | |
| Mega JANE STREET GROUP, LLC | −1,681,375 | 628,494 | |
| Large ACADIAN ASSET MANAGEMENT LLC | −933,525 | 71,722 | |
| Mega GOLDMAN SACHS GROUP INC | −248,830 | 15,224 | |
| Mega MORGAN STANLEY | −53,938 | 5,916 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large Centiva Capital, LP | 114,108 | $111,597 | |
| Mid Concentric Capital Strategies, LP | 77,668 | $75,959 | |
| Mega TWO SIGMA INVESTMENTS, LP | 14,400 | $14,083 | |
| Small AXQ CAPITAL, LP | 10,219 | $9,994 | |
| Mid Tower Research Capital LLC (TRC) | 2,933 | $2,867 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large HRT FINANCIAL LP | 291,158 | $500,791 | |
| Small Alpine Global Management, LLC | 116,128 | $199,740 | |
| Mid Virtu Financial LLC | 89,598 | $154,108 | |
| Large Verition Fund Management LLC | 62,521 | $107,536 | |
| Large Marex Group plc | 59,804 | $102,862 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $4,958,299 | 29.82% | 5,069,836 | Shares | Other | 2026-05-15 | ||||
| Large TUDOR INVESTMENT CORP ET AL | $2,146,857 | 12.91% | 2,195,151 | Shares | Defined | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $1,971,256 | 11.86% | 2,015,600 | Shares | Sole | 2026-05-14 | ||||
| Mega STATE STREET CORP | $1,210,406 | 7.28% | 1,237,634 | Shares | Defined | 2026-05-15 | ||||
| Mega Legal & General Group Plc | $1,064,019 | 6.40% | 1,087,954 | Shares | Defined | 2026-05-08 | ||||
| Large MARSHALL WACE, LLP | $741,438 | 4.46% | 758,117 | Shares | Other | 2026-05-15 | ||||
| Mega UBS Group AG | $667,123 | 4.01% | 682,130 | Shares | Defined | 2026-05-05 | ||||
| Mega JANE STREET GROUP, LLC | $614,667 | 3.70% | 628,494 | Shares | Defined | 2026-05-12 | ||||
| Mid Altshuler Shaham Ltd | $586,792 | 3.53% | 599,992 | Shares | Defined | 2026-05-18 | ||||
| Mega Mitsubishi UFJ Asset Management Co., Ltd. | $577,998 | 3.48% | 591,000 | Shares | Defined | 2026-05-12 | ||||
| Mega BARCLAYS PLC | $330,860 | 1.99% | 338,303 | Shares | Defined | 2026-05-15 | ||||
| Mega Invesco Ltd. | $217,486 | 1.31% | 222,379 | Shares | Defined | 2026-05-12 | ||||
| Mid XTX Topco Ltd | $209,847 | 1.26% | 214,568 | Shares | Defined | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $203,910 | 1.23% | 208,497 | Shares | Defined | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $189,419 | 1.14% | 193,681 | Shares | Sole | 2026-05-13 | ||||
| Mid Susquehanna Portfolio Strategies, LLC | $138,596 | 0.83% | 141,714 | Shares | Sole | 2026-05-15 | ||||
| Large Centiva Capital, LP | $111,597 | 0.67% | 114,108 | Shares | Sole | 2026-05-14 | ||||
| Small Themes Management Co LLC | $100,367 | 0.60% | 102,625 | Shares | Sole | 2026-05-15 | ||||
| Mid Concentric Capital Strategies, LP | $75,959 | 0.46% | 77,668 | Shares | Sole | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $70,773 | 0.43% | 72,366 | Shares | Sole | 2026-05-15 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $70,144 | 0.42% | 71,722 | Shares | Defined | 2026-05-13 | ||||
| Mega HSBC HOLDINGS PLC | $61,998 | 0.37% | 63,393 | Shares | Defined | 2026-04-30 | ||||
| Mega NORTHERN TRUST CORP Bank | $55,136 | 0.33% | 56,377 | Shares | Defined | 2026-05-14 | ||||
| Small State of Wyoming | $50,755 | 0.31% | 51,897 | Shares | Sole | 2026-05-13 | ||||
| Mid Quantbot Technologies LP | $49,390 | 0.30% | 50,502 | Shares | Sole | 2026-05-13 | ||||
| Small Green Alpha Advisors, LLC | $48,274 | 0.29% | 49,360 | Shares | Sole | 2026-04-07 | ||||
| Mega CITADEL ADVISORS LLC | $22,432 | 0.13% | 22,937 | Shares | Defined | 2026-05-15 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $15,018 | 0.09% | 15,356 | Shares | Defined | 2026-05-18 | ||||
| Mega GOLDMAN SACHS GROUP INC | $14,889 | 0.09% | 15,224 | Shares | Defined | 2026-05-15 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $14,083 | 0.08% | 14,400 | Shares | Sole | 2026-05-15 | ||||
| Small Bangor Savings Bank Bank | $10,168 | 0.06% | 10,397 | Shares | Sole | 2026-04-01 | ||||
| Small AXQ CAPITAL, LP | $9,994 | 0.06% | 10,219 | Shares | Sole | 2026-05-13 | ||||
| Mega ROYAL BANK OF CANADA Bank | $8,072 | 0.05% | 8,254 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $5,785 | 0.03% | 5,916 | Shares | Defined | 2026-05-15 | ||||
| Mid Tower Research Capital LLC (TRC) | $2,867 | 0.02% | 2,933 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $378 | 0.00% | 387 | Shares | Defined | 2026-04-28 | ||||
| Micro Bell Investment Advisors, Inc | $271 | 0.00% | 278 | Shares | Sole | 2026-04-17 | ||||
| Mid HARBOUR INVESTMENTS, INC. | $257 | 0.00% | 263 | Shares | Sole | 2026-05-15 | ||||
| Small Caitong International Asset Management Co., Ltd | $68 | 0.00% | 70 | Shares | Sole | 2026-05-11 | ||||
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