New Positions
6 managers initiated
Top five by reported value
Bluejay Diagnostics Inc NASDAQ NMS - GLOBAL MARKET:BJDX
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
6 new1 added1 reduced2 exited
Total Institutional Holders
8
as of 2025-12-31
Top Holder
ARMISTICE CAPITAL, LLC
$43.4K
Largest QoQ Increase
ARMISTICE CAPITAL, LLC
+65,000 sh
Largest QoQ Decrease
DRW Securities, LLC
-59,767 sh
New Positions(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 65,000 | +65,000 | $43.4K | +$43.4K | — |
| CITADEL ADVISORS LLC | 41,794 | +41,794 | $27.9K | +$27.9K | — |
| RENAISSANCE TECHNOLOGIES LLC | 32,100 | +32,100 | $21.4K | +$21.4K | — |
| TWO SIGMA SECURITIES, LLC | 14,351 | +14,351 | $9.6K | +$9.6K | — |
| GEODE CAPITAL MANAGEMENT, LLC | 10,256 | +10,256 | $6.8K | +$6.8K | — |
| L1 Global Manager Pty Ltd | 483 | +483 | $226 | +$226 | — |
Added To(1)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BANK OF AMERICA CORP /DE/ | 15 | +3 | $10 | -$8 | 25.0% |
Reduced(1)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Tower Research Capital LLC (TRC) | 4,433 | -15 | $3.0K | -$3.8K | -0.3% |
Sold Out(2)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| DRW Securities, LLC | 0 | -59,767 | $0 | -$90.8K | — |
| SABBY MANAGEMENT, LLC | 0 | -29,628 | $0 | -$45.0K | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 65,000 | $43.4K | +65,000 | — |
| CITADEL ADVISORS LLC | 41,794 | $27.9K | +41,794 | — |
| RENAISSANCE TECHNOLOGIES LLC | 32,100 | $21.4K | +32,100 | — |
| TWO SIGMA SECURITIES, LLC | 14,351 | $9.6K | +14,351 | — |
| GEODE CAPITAL MANAGEMENT, LLC | 10,256 | $6.8K | +10,256 | — |
| Tower Research Capital LLC (TRC) | 4,433 | $3.0K | -15 | -0.3% |
| L1 Global Manager Pty Ltd | 483 | $226 | +483 | — |
| BANK OF AMERICA CORP /DE/ | 15 | $10 | +3 | 25.0% |
New & Closed Positions this quarter
Closed Positions
2 managers exited
Top five by prior-quarter value
- DRW Securities, LLC$90.8K
- SABBY MANAGEMENT, LLC$45.0K
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for BJDX against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.