BJDX — Bluejay Diagnostics, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2021-11-11.
Performance
Technicals
Others in Healthcare
Measured signals that fired on BJDX
| date | signal | measured base rate |
|---|---|---|
| 2026-08-05 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-06 | Volume shock without a price move price | -1.33% over 21 days · t = -4.53 · n = 16,432 statistically distinguishable from its control group |
| 2026-07-02 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-17 | Dey Indranil President and CEO | Grant or award | 28.0K | 0.00 | 0 |
| 2026-07-10 | HRT FINANCIAL LP 10% owner | Open-market sale | 34.9K | 1.40 | 48.9K |
| 2026-07-09 | HRT FINANCIAL LP 10% owner | Open-market purchase | 64.0K | 1.51 | 96.7K |
| 2026-03-14 | Dey Indranil President and CEO | Open-market purchase | 12.5K | 2.00 | 25.0K |
| 2026-03-14 | Wurth Douglas Clark Director | Open-market purchase | 12.5K | 2.00 | 25.0K |
| 2026-03-14 | CHASE DONALD R Director | Open-market purchase | 12.5K | 2.00 | 25.0K |
| 2026-03-14 | Dey Svetlana Director | Open-market purchase | 12.5K | 2.00 | 25.0K |
| 2026-03-14 | ZEIDMAN FRED S Director | Open-market purchase | 12.5K | 2.00 | 25.0K |
| 2023-12-13 | Dey Indranil President and CEO | Open-market purchase | 500 | 3.27 | 1.6K |
| 2023-12-13 | Dey Svetlana Director | Open-market purchase | 500 | 3.07 | 1.5K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| SABBY MANAGEMENT, LLC | 52.9K | 28.7K |
| GEODE CAPITAL MANAGEMENT, LLC | 51.8K | 28.1K |
| Tower Research Capital LLC (TRC) | 3.2K | 1.7K |
| UBS Group AG | 228 | 124 |
| L1 Global Manager Pty Ltd | 220 | 120 |
| Caitong International Asset Management Co., Ltd | 6 | 3 |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Bluejay Diagnostics, Inc. (BJDX) filed form 8-K · 2026-08-13 · SEC EDGAR
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