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Bluejay Diagnostics, Inc.

BJDX
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001704287

No open-market purchases or sales by Bluejay Diagnostics, Inc. insiders were filed in the last 90 days; 8 institutions reported holding it in 13F filings for Q2 2026, worth $259.3K in total; no superinvestor holds it.

Holders of 5% or more of BJDX

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Bluejay Diagnostics, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of BJDX
HolderLatest formStakeChangeFirst filedLatest filingFiling
Armistice Capital, LLC13G9.99%142.7K shares+5.00 ppfrom 4.99%Feb 14, 20246 filingsAug 14, 2026SEC
Ayrton Capital LLC13G9.99%107.7K sharesNewAug 13, 20261 filingAug 13, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

28 Schedule 13D and 13G filings on Bluejay Diagnostics, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on BJDX
Filed (ET)FilerFormStakeChangeEvent dateFiling
Nov 10, 20265:47 PM ETIntracoastal Capital, LLCand 2 others13G/A4.99%234.7K shares−5.00 ppfrom 9.99%Below 5%Sep 30, 2026SEC
Aug 14, 202610:03 AM ETArmistice Capital, LLCand 1 other13G9.99%142.7K shares+5.00 ppfrom 4.99%Jun 30, 2026SEC
Aug 13, 202612:27 PM ETAyrton Capital LLCand 2 others13G9.99%107.7K sharesNewJun 30, 2026SEC
Jun 5, 20265:28 PM ETIntracoastal Capital, LLCand 2 others13G9.99%0 sharesNewJun 3, 2026SEC
Jun 2, 20269:00 PM ETNorthstrive Fund II LPand 1 other13D/A0.00%0 shares−3.65 ppfrom 3.65%Below 5%Jun 2, 2026SEC
Jun 2, 20268:10 PM ETBraeden Lichtiand 1 other13D/A0.00%0 shares−3.65 ppfrom 3.65%Below 5%Jun 2, 2026SEC
May 15, 202611:09 AM ETArmistice Capital, LLCand 1 other13G/A4.99%51.1K shares−5.00 ppfrom 9.99%Below 5%Mar 31, 2026SEC
Mar 11, 20268:54 AM ETBraeden Lichtiand 1 other13D3.65%35.5K shares−1.36 ppfrom 5.01%Below 5%Mar 11, 2026SEC
Mar 11, 20268:12 AM ETNorthstrive Fund II LPand 1 other13D3.65%35.5K shares0.00 ppfrom 3.65%Below 5%Mar 11, 2026SEC
Mar 11, 20266:40 AM ETNorthstrive Fund II LPand 1 other13D3.65%35.5K shares−1.36 ppfrom 5.01%Below 5%Mar 11, 2026SEC
Feb 18, 20264:48 PM ETArmistice Capital, LLCand 1 other13G9.99%194.1K shares0.00 ppfrom 9.99%Dec 31, 2025SEC
Feb 17, 20269:55 PM ETArmistice Capital, LLCand 1 other13G9.99%194.1K shares–Dec 31, 2025SEC
Feb 13, 20264:38 PM ETIntracoastal Capital, LLCand 2 others13G/A4.99%91.5K shares−5.00 ppfrom 9.99%Below 5%Dec 31, 2025SEC
Feb 5, 20269:43 PM ETNorthstrive Fund II LPand 1 other13G5.01%35.5K sharesNewFeb 5, 2026SEC
Feb 5, 20269:42 PM ETBraeden Lichtiand 1 other13G5.01%35.5K sharesNewFeb 5, 2026SEC
Oct 16, 20254:50 PM ETIntracoastal Capital, LLCand 2 others13G9.99%177.6K sharesNewOct 10, 2025SEC
Feb 14, 20254:59 PM ETL1 Capital Global Opportunities Master Fund, Ltd.13G/A0.82%221.3K shares–Below 5%Dec 31, 2024SEC
Feb 14, 202511:48 AM ETAnson Funds Management LPand 5 others13G/A1.40%367.9K shares–Below 5%Dec 31, 2024SEC
Jan 3, 20253:31 PM ETSabby Management, LLCand 2 others13G/A4.90%27.6K shares–Below 5%Dec 31, 2024SEC
Nov 14, 2024Anson Funds Management LP13GOld format–New–SEC
Nov 14, 2024Armistice Capital, LLC13G/AOld format–––SEC
Jul 3, 2024L1 Capital Global Opportunities Master Fund, Ltd.13GOld format–New–SEC
Feb 14, 2024Armistice Capital, LLC13GOld format–New–SEC
Jan 3, 2024Sabby Management, LLC13GOld format–––SEC
Jan 4, 2022Sabby Management, LLC13G/AOld format–––SEC
Dec 22, 2021Wurth Douglas Clark13DOld format–New–SEC
Dec 22, 2021Dey Indranil13DOld format–New–SEC
Nov 17, 2021Sabby Management, LLC13GOld format–New–SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Bluejay Diagnostics, Inc. shares.

No Form 144 notices for Bluejay Diagnostics, Inc. are on file.