APM — Aptorum Group Limited Institutional Holders · Q2 2026
Who owns Aptorum Group Limited (APM)? 10 institutions reported holding $74,186 in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Jane Street Group, LLC ($45,728), Citadel Advisors LLC ($19,158), Citigroup Inc ($5,005).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLC | $45,728 | 58,461 | New |
| 2 | CITADEL ADVISORS LLC | $19,158 | 24,492 | Trimmed |
| 3 | CITIGROUP INC | $5,005 | 6,398 | New |
| 4 | OSAIC HOLDINGS, INC. | $4,290 | 5,500 | Hold |
| 5 | SBI Securities Co., Ltd. | $5 | 7 | Hold |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $0 | 0 | Exited |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 8 | UBS Group AG | $0 | 0 | Exited |
| 9 | XTX Topco Ltd | $0 | 0 | Exited |
| 10 | MORGAN STANLEY | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30