Bluejay Diagnostics BJDX Insider Ownership

NASDAQ BJDX

$0.68 -0.01 (-1.97%)

As of: Oct 20, 2026 · 3:57 PM EDT

Insider Holdings by Owner

182.72K Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

8.79%

▲+5.77% pp QoQ

Shares Held by Insiders

182.71K

filed for Sep 2026

▲+191.61% QoQ

Shares Outstanding

2.08Mn

2,079,263 shares

Direct Holdings

182.71K

Indirect: 0

Net Shares Traded (QoQ)

+120.06K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

Over the past year, BJDX insiders bought $121,711 of stock and sold $48,913 on the open market.

Counted by insider, open-market buying of BJDX stock in the past 12 months came from 2 insiders and selling from one insider.
Among Bluejay Diagnostics' insiders, HRT Financial LP (10% owner) was the largest open-market buyer over the past 12 months, purchasing $96,711 of stock, most recently on July 9, 2026.
On the selling side, HRT Financial LP (10% owner) sold the most Bluejay Diagnostics stock on the open market over the past 12 months, $48,913, most recently on July 10, 2026.
Per Business Quant data, Bluejay Diagnostics insiders hold 182.71K shares in total based on their latest Form 4 filings, or 8.79% of the 2.08Mn shares outstanding.
None of the 182.71K shares held by Bluejay Diagnostics insiders is held through trusts, partnerships or family members; all are direct holdings.
Per Business Quant, 6 insiders of BJDX hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
BJDX's three largest insider shareholders, per their latest Form 4 filings, are HRT Financial LP (10% owner, 92.06K shares), Indranil Dey (President and CEO, 40.52K shares) and Douglas Clark Wurth (Director, 12.61K shares).
Of the shares held by BJDX insiders, 50.38% belong to HRT Financial LP.
In the last 12 months, 11 Form 4 filings with transactions in BJDX stock came from 6 insiders.
This summary of Bluejay Diagnostics insider activity covers Form 4 filings through August 18, 2026.

Form 4 Holdings

Insiders Holding BJDX

Insiders 9

Shares held 182.72K

Of outstanding 8.79%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Financial Lp Hrt	TenPercentOwner	92,055	92,055	50.4%	13 Jul, 2026
2	Indranil Dey	President And Ceo	40,522	40,522	22.2%	18 Aug, 2026
3	Douglas Clark Wurth	Director	12,608	12,608	6.9%	18 May, 2026
4	Donald R Chase	Director	12,525	12,525	6.9%	18 May, 2026
5	Svetlana Dey	Director	12,501	12,501	6.8%	18 May, 2026
6	Fred S Zeidman	Director	12,500	12,500	6.8%	18 May, 2026
7	Kenneth R Fisher	Chief Financial Officer	4	4	0.0%	13 Feb, 2023
8	Gary G Gemignani	Director	1	1	0.0%	16 Feb, 2023
9	Gordon Winston Kinder	Chief Financial Officer	1	1	0.0%	21 Mar, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

51 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
17 Aug, 2026	Svetlana Dey	Director	Acquired A	100,000	$0.00	$0	100,000	Direct
17 Aug, 2026	Indranil Dey	President And Ceo	Acquired A	28,000	$0.00	$0	40,522	Direct
17 Aug, 2026	Donald R Chase	Director	Acquired A	100,000	$0.00	$0	100,000	Direct
17 Aug, 2026	Douglas Clark Wurth	Director	Acquired A	100,000	$0.00	$0	100,000	Direct
17 Aug, 2026	Fred S Zeidman	Director	Acquired A	100,000	$0.00	$0	100,000	Direct
09 Jul, 2026	Financial Lp Hrt	TenPercentOwner	Acquired P	64,047	$1.51	$96.71K	126,993	Direct
10 Jul, 2026	Financial Lp Hrt	TenPercentOwner	Disposed S	34,938	$1.40	$48.91K	92,055	Direct
14 Mar, 2026	Svetlana Dey	Director	Acquired P	12,500	$2.00	$25.00K	12,501	Direct
14 Mar, 2026	Fred S Zeidman	Director	Acquired P	12,500	$2.00	$25.00K	12,500	Direct
14 Mar, 2026	Donald R Chase	Director	Acquired P	12,500	$2.00	$25.00K	12,525	Direct
14 Mar, 2026	Douglas Clark Wurth	Director	Acquired P	12,500	$2.00	$25.00K	12,608	Direct
14 Mar, 2026	Indranil Dey	President And Ceo	Acquired P	12,500	$2.00	$25.00K	12,522	Direct
13 Dec, 2023	Svetlana Dey	Director	Acquired P	500	$4,912.00	$2.46Mn	1	Direct
13 Dec, 2023	Indranil Dey	President And Ceo	Acquired P	500	$5,232.00	$2.62Mn	18	Direct
24 Mar, 2023	Svetlana Dey	Director	Acquired P	10,000	$14,080.00	$140.80Mn	1	Direct
27 Mar, 2023	Indranil Dey	President And Ceo	Acquired P	8,000	$14,080.00	$112.64Mn	17	Direct
28 Mar, 2023	Indranil Dey	President And Ceo	Acquired P	2,000	$14,080.00	$28.16Mn	21	Direct
27 Mar, 2023	Indranil Dey	President And Ceo	Acquired A	8,000	$14,080.00	$112.64Mn	17	Direct
28 Mar, 2023	Indranil Dey	President And Ceo	Acquired A	2,000	$14,080.00	$28.16Mn	21	Direct
24 Mar, 2023	Svetlana Dey	Director	Acquired A	10,000	$14,080.00	$140.80Mn	1	Direct

Showing 1 to 20 of 51 transactions