Bluejay DiagnosticsBJDX
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 8 institutions reported holding Bluejay Diagnostics Inc. (BJDX) in their 13F filings, up 4 from Q3 2025. 5 opened new positions and 2 sold out. The largest holders were Armistice Capital, LLC ($43K), Citadel Advisors ($28K) and Renaissance Technologies ($21K). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Bluejay Diagnostics Inc.
- CUSIP
- 095633509
- Latest filing quarter
- Q4 2025
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $109K |
| Exits | 2 | $136K |
All 13F filers, Q3 2025 → Q4 2025: 163,504 shares bought and 89,410 shares sold, net +74,094 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 8 holders
| Armistice Capital, LLC | 0.00% | New | 65,000 | $43K |
| Citadel Advisors | 0.00% | New | 41,794 | $28K |
| Renaissance Technologies | 0.00% | New | 32,100 | $21K |
| Two Sigma Securities, LLC | 0.00% | New | 14,351 | $10K |
| Geode Capital Management, LLC | 0.00% | New | 10,256 | $7K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -0.3% | 4,433 | $3K |
| L1 Global Manager Pty Ltd | 0.00% | — | 483 | $226 |
| Bank of America Corp. | 0.00% | Add +25.0% | 15 | $10 |
"% of holder's portfolio" is BJDX's weight in each manager's 13F, not the share of Bluejay Diagnostics Inc. the manager owns.