Comparable stake leader
INTRACOASTAL CAPITAL, LLC
SEC ownership of Bluejay Diagnostics, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001704287.
Disclosed value leader
Kenneth R. Fisher
Comparable rows
15/19
Latest evidence
03 Jun 2026
- Public ticker
- BJDX on Nasdaq
- Parsed ownership sources
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- INTRACOASTAL CAPITAL, LLC
- Latest 13D/G holder
- INTRACOASTAL CAPITAL, LLC
- Latest parsed ownership date
- 03 Jun 2026
- Issuer CIK
- 0001704287
- Issuer location
- Acton, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Bluejay Diagnostics, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
INTRACOASTAL CAPITAL, LLC
Disclosed value leader
Kenneth R. Fisher
Comparable rows
15/19
Latest evidence
03 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 10%
4 rows are not safely comparable across share classes.
13D/G row: INTRACOASTAL CAPITAL, LLC
Showing 1-8 of 19 holder rows.
Quick read
INTRACOASTAL CAPITAL, LLC leads the comparable SEC ownership view at 10%.
15 of 19 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens INTRACOASTAL CAPITAL, LLC's linked filing trail.
Comparable ownership
Top 5
INTRACOASTAL CAPITAL, LLC
10%
ARMISTICE CAPITAL, LLC
5%
SABBY MANAGEMENT, LLC
4.9%
Anson Funds Management LP
1.4%
L1 Capital Global Opportunities M...
0.82%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 19 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| INTRACOASTAL CAPITAL, LLC |
13D/G
Mitchell P. Kopin
|
10%
|
—
|
$0 | 03 Jun 2026 |
| ARMISTICE CAPITAL, LLC |
13D/G
|
5%
|
—
51,061 shares
|
$0 | 31 Mar 2026 |
| SABBY MANAGEMENT, LLC |
13F
13D/G
Company
|
4.9%
from 13D/G
|
$52,856
28,726 shares
|
— | 31 Mar 2026 |
| Anson Funds Management LP |
13D/G
|
1.4%
|
$25,756
367,950 shares
|
$0 | 31 Dec 2024 |
| L1 Capital Global Opportunities Master Fund, Ltd. |
13D/G
|
0.82%
|
$15,488
221,251 shares
|
$0 | 31 Dec 2024 |
| Indranil Dey |
3/4/5
President and CEO, Director
|
1.3%
|
$25,286
12,649 shares
|
+$25,000 | 14 Mar 2026 |
| Svetlana Dey |
3/4/5
Director
|
1.3%
|
$25,244
12,628 shares
|
+$25,000 | 14 Mar 2026 |
| Douglas Clark Wurth |
3/4/5
Director
|
1.3%
|
$25,216
12,608 shares
|
+$25,000 | 14 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$125,000.
Buys
$125,000
Insiders: 5
Sells
$0
Insiders: 0
Net
+$125,000
Shares: +62,500
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 62,500
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 62,500 | 0 | $125,000 | $0 | +$125,000 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-10 of 10 reporting-owner rows connected to Bluejay Diagnostics, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
10
Largest Forms 3/4/5 holder
Kenneth R. Fisher
Net 12M change
+$125,000
Latest report
14 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Kenneth R. Fisher | Chief Financial Officer | $347,475 | Mixed | 01 Feb 2023 | ||
| Jason Cook | Chief Technology Officer | $137,843 | Mixed | 07 Mar 2023 | ||
| Gary G. Gemignani | Director | $84,425 | Mixed | 01 Feb 2023 | ||
| Gordon Winston Kinder | Chief Financial Officer | $56,795 | Mixed | 17 Mar 2022 | ||
| Indranil Dey | President and CEO, Director | $25,286 | +$25,000 | +8741% | Mixed | 14 Mar 2026 |
| Svetlana Dey | Director | $25,244 | +$25,000 | +10246% | Mixed | 14 Mar 2026 |
| Douglas Clark Wurth | Director | $25,216 | +$25,000 | +11574% | Filing P/S | 14 Mar 2026 |
| Donald R. Chase | Director | $25,050 | +$25,000 | +50000% | Filing P/S | 14 Mar 2026 |
| Fred S. Zeidman | Director | $25,000 | +$25,000 | +100% | Filing P/S | 14 Mar 2026 |
| Frances P. Scally | Cfo | Mixed | 26 Sep 2023 |
Recent insider transactions for Bluejay Diagnostics, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Douglas Clark Wurth | BJDX | Common Stock | Purchase | 11574.1% | $25,000 | $2.00 | 12,500 | 12,608 | 14 Mar 2026 | Direct |
| Indranil Dey | BJDX | Common Stock | Purchase | 56818.2% | $25,000 | $2.00 | 12,500 | 12,522 | 14 Mar 2026 | Direct |
| Donald R. Chase | BJDX | Common Stock | Purchase | 50000% | $25,000 | $2.00 | 12,500 | 12,525 | 14 Mar 2026 | Direct |
| Fred S. Zeidman | BJDX | Common Stock | Purchase | $25,000 | $2.00 | 12,500 | 12,500 | 14 Mar 2026 | Direct | |
| Svetlana Dey | BJDX | Common Stock | Purchase | 1250000% | $25,000 | $2.00 | 12,500 | 12,501 | 14 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.