Bluejay Diagnostics, Inc.
BJDX- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001704287
In the last 90 days, Bluejay Diagnostics, Inc. insiders filed 1 open-market purchase and 1 sale; 8 institutions reported holding it in 13F filings for Q2 2026, worth $259.3K in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Bluejay Diagnostics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 1 filing
- 1 insider, $96.7K in total
- Open-market sells
- 1 filing
- 1 insider, $48.9K in total
- Insiders trading
- 1
- Net value
- +$47.8K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Bluejay Diagnostics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Zeidman Fred S | Director | 12,500 | Aug 18, 2026 | 2 |
| Wurth Douglas Clark | Director | 12,608 | Aug 18, 2026 | 2 |
| Dey Svetlana | Director | 12,501 | Aug 18, 2026 | 2 |
| Dey Indranil | President and CEO | 40,522 | Aug 18, 2026 | 2 |
| Chase Donald R | Director | 12,525 | Aug 18, 2026 | 2 |
| Bank Of America Corp | 10% Owner | – | Jul 22, 2026 | 2 |
| Bank Of America NA | 10% Owner | – | Jul 22, 2026 | 2 |
| Bofa Securities, Inc. | 10% Owner | – | Jul 22, 2026 | 2 |
| HRT Financial LP | 10% Owner | 92,055 | Jul 13, 2026 | 1 |
| Gemignani Gary G | Director | 27,500 | Feb 16, 2023 | 0 |
| Fisher Kenneth R | Chief Financial Officer | 113,184 | Feb 13, 2023 | 0 |
| Kinder Gordon Winston | Chief Financial Officer | 18,500 | Mar 21, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 13, 2026 (view filing)3:14 PM ET | Jul 9 | 4 days | HRT Financial LP10% Owner | PPurchase | +64.0K | $1.51 | +$96.7K | +101.7%127.0K after | |
| Jul 13, 2026 (view filing)3:14 PM ET | Jul 10 | 3 days | HRT Financial LP10% Owner | SSale | −34.9K | $1.40 | −$48.9K | −27.5%92.1K after | |
| May 18, 2026 (view filing) | Mar 14 | 65 daysLate | Wurth Douglas ClarkDirector | PPurchase | +12.5K | $2.00 | +$25.0K | +11,574.1%12.6K after | |
| May 18, 2026 (view filing) | Mar 14 | 65 daysLate | Dey IndranilPresident and CEO | PPurchase | +12.5K | $2.00 | +$25.0K | +56,818.2%12.5K after | |
| May 18, 2026 (view filing) | Mar 14 | 65 daysLate | Chase Donald RDirector | PPurchase | +12.5K | $2.00 | +$25.0K | +50,000.0%12.5K after | |
| May 18, 2026 (view filing) | Mar 14 | 65 daysLate | Zeidman Fred SDirector | PPurchase | +12.5K | $2.00 | +$25.0K | New position12.5K after | |
| May 18, 2026 (view filing) | Mar 14 | 65 daysLate | Dey SvetlanaDirector | PPurchase | +12.5K | $2.00 | +$25.0K | +1,250,000.0%12.5K after | |
| Dec 14, 2023 (view filing) | Dec 13 | 1 day | Dey SvetlanaDirector | PPurchase | +500 | $3.07 | +$1.53K | +50.0%1.50K after | |
| Dec 14, 2023 (view filing) | Dec 13 | 1 day | Dey IndranilPresident and CEO | PPurchase | +500 | $3.27 | +$1.64K | +1.8%28.5K after | |
| Mar 31, 2023 (view filing)1:46 PM ET | Mar 24 | 7 days | Dey SvetlanaDirector | PPurchase | +10.0K | $0.44 | +$4.40K | +26.7%47.5K after | Amended |
| Mar 31, 2023 (view filing)1:45 PM ET | Mar 27-28 | 4 days | Dey IndranilPresident and CEO | PPurchase | +10.0K | $0.44 | +$4.40K | +1.5%660.5K after | Amended2 lots |
| Sep 7, 2022 (view filing) | Aug 26 | 12 daysLate | Fisher Kenneth RChief Financial Officer | PPurchase | +20.0K | $1.03 | +$20.6K | +100.0%40.0K after | |
| Apr 27, 2022 (view filing) | Apr 25 | 2 days | Fisher Kenneth RChief Financial Officer | PPurchase | +20.0K | $0.99 | +$19.8K | New position20.0K after | |
| Mar 21, 2022 (view filing) | Mar 17 | 4 days | Kinder Gordon WinstonChief Financial Officer | PPurchase | +2.50K | $1.16 | +$2.90K | +15.6%18.5K after | |
| Mar 21, 2022 (view filing) | Mar 17 | 4 days | Dey SvetlanaDirector, 10% Owner | PPurchase | +10.0K | $1.18 | +$11.8K | New position10.0K after | |
| Mar 18, 2022 (view filing) | Mar 17 | 1 day | Wurth Douglas ClarkDirector, 10% Owner | PPurchase | +40.0K | $1.18 | +$47.2K | +1.8%2.29M after | |
| Mar 17, 2022 (view filing) | Mar 16 | 1 day | Wurth Douglas ClarkDirector, 10% Owner | PPurchase | +60.0K | $1.09 | +$65.4K | +2.7%2.25M after | |
| Mar 16, 2022 (view filing) | Mar 14-16 | 2 days | Kinder Gordon WinstonChief Financial Officer | PPurchase | +16.0K | $0.9706 | +$15.5K | New position16.0K after | 3 lots |