Amber International HoldingAMBR
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 17 institutions reported holding Amber International Holding (AMBR) in their 13F filings, down 2 from Q3 2025. 4 opened new positions and 7 sold out. The largest holders were Pantera Capital Partners LP ($166K), Clear Street Group Inc. ($157K) and Millennium Management ($106K). 2 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Amber International Holding
- CUSIP
- 45113Y203
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $262K |
| Exits | 7 | $535K |
All 13F filers, Q3 2025 → Q4 2025: 185,917 shares bought and 313,567 shares sold, net −127,650 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 17 holders
| Pantera Capital Partners LP | 0.10% | No change | 95,694 | $166K |
| Clear Street Group Inc. | 0.00% | New | 90,905 | $157K |
| Millennium Management | 0.00% | Add +109.5% | 61,098 | $106K |
| Citadel Advisors | 0.00% | Reduce -19.9% | 50,995 | $88K |
| XTX Topco Ltd | 0.00% | New | 41,135 | $71K |
| Susquehanna International Group, LLP | 0.00% | Reduce -51.4% | 27,656 | $48K |
| Morgan Stanley | 0.00% | Reduce -0.5% | 26,080 | $45K |
| Marshall Wace, LLP | 0.00% | Reduce -78.9% | 22,856 | $40K |
| SmartHarvest Portfolios, LLC | 0.01% | — | 20,134 | $35K |
| Simplex Trading, LLC | 0.00% | New | 19,412 | $34K |
| Two Sigma Investments, LP | 0.00% | Reduce -8.8% | 11,502 | $20K |
| UBS Group AG | 0.00% | Add +61.4% | 5,398 | $9K |
| BlackRock, Inc. | 0.00% | Reduce -89.0% | 3,126 | $5K |
| Rhumbline Advisers | 0.00% | Add +54.9% | 1,027 | $2K |
| SBI Securities Co., Ltd. | 0.00% | Add +26.6% | 100 | $173 |
| Tower Research Capital LLC (TRC) | 0.00% | New | 95 | $164 |
| Bessemer Group Inc. | 0.00% | No change | 7 | $0 |
"% of holder's portfolio" is AMBR's weight in each manager's 13F, not the share of Amber International Holding the manager owns.