Figures computed from official regulatory filings — .
Ownershipinsiders 2.03% · institutions 9.79% · short 13.5% of float
In USD · as of Oct 5, 2026
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Bluejay Diagnostics, Inc. operates as a medical diagnostics company. It offers Symphony technology platform which consists of an analyzer and single-use protein detection cartridges that are designed to provide measurements of key diagnostic biomarkers found in blood; and Symphony analyzer used to orchestrate sample processing of whole blood, plasma, serum, etc., biomarker isolation, and immunoassay preparation using non-contact centrifugal force. The company also develops Symphony IL-6 tests for the monitoring of disease progression in critical care settings. In addition, it develops additional tests for Symphony, such as tests for myocardial infraction and congestive heart failure, as well as other tests using the Symphony platform. Bluejay Diagnostics, Inc. was incorporated in 2015 and is headquartered in Acton, Massachusetts.
Market information source · Oct 5, 2026
SEC company identity · Oct 5, 2026
Open-market timeline · full history
20 buys1 sell— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| CHASE DONALD R | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Dey Svetlana | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Dey Indranil | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| ZEIDMAN FRED S | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Wurth Douglas Clark | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| HRT FINANCIAL LPtrack record | Buy | $96.7K | conv 66 | SEC |
| HRT FINANCIAL LPtrack record | Sell | $48.9K | SEC |
| CHASE DONALD R | Buy | $25K | conv 91ClusterFirst in 12mo | SEC |
| Wurth Douglas Clark | Buy | $25K | conv 87ClusterFirst in 12mo | SEC |
| ZEIDMAN FRED S | Buy | $25K | conv 87ClusterFirst in 12mo | SEC |
| Dey Indranil | Buy | $25K | conv 99ClusterUnusual size+1 | SEC |
| Dey Svetlana | Buy | $25K | conv 90ClusterUnusual size+1 | SEC |
| Dey Svetlana | Buy | $1.5K | conv 63 | SEC |
| Dey Indranil | Buy | $1.6K | conv 60 | SEC |
| Dey Indranil | Buy | $880 | conv 36 | SEC |
| Dey Svetlana | Buy | $4.4K | conv 43First in 12mo | SEC |
| Dey Indranil | Buy | $3.5K | conv 47First in 12mo | SEC |
| Dey Indranil | Award | $3.5K | SEC |
| Dey Indranil | Award | $880 | SEC |
| Dey Svetlana | Award | $4.4K | SEC |
| Gemignani Gary G | Award | $12.1K | SEC |
| Dey Indranil | Other | $24.5K | SEC |
| Fisher Kenneth R | Award | $49.5K | SEC |
| ZEIDMAN FRED S | Award | $12.1K | SEC |
| CHASE DONALD R | Award | $12.1K | SEC |