The company may no longer be operating, as it has been acquired. Find out why through their latest events.

Chembio Diagnostics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:CEMI Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
25 Apr 23	BuyUS$109,411	Perceptive Advisors LLC	Company		243,448	US$0.45

Insider Buying: CEMI insiders have bought more shares than they have sold in the past 3 months.

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 21.5%.

Top 25 shareholders own 23.43% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
13.4%	Perceptive Advisors LLC	4,919,334	US$2.2m	0%	0.06%
4.25%	The Vanguard Group, Inc.	1,561,470	US$710.5k	-0.03%	no data
1.03%	Richard Eberly	377,145	US$171.6k	634%	no data
0.76%	Geode Capital Management, LLC	279,456	US$127.2k	-0.23%	no data
0.56%	BlackRock, Inc.	206,244	US$93.8k	-0.09%	no data
0.5%	Javan Esfandiari	185,108	US$84.2k	66.4%	no data
0.37%	Renaissance Technologies LLC	136,400	US$62.1k	20.1%	no data
0.34%	BNY Mellon Asset Management	123,045	US$56.0k	-0.73%	no data
0.31%	Katherine Davis	114,229	US$52.0k	7.3%	no data
0.22%	Northern Trust Global Investments	82,143	US$37.4k	0%	no data
0.22%	Virtu Financial LLC, Asset Management Arm	80,619	US$36.7k	0%	no data
0.16%	SignatureFD, LLC	60,000	US$27.3k	-13.4%	no data
0.15%	Susquehanna International Group, LLP, Asset Management Arm	56,869	US$25.9k	0%	no data
0.15%	John Potthoff	54,086	US$24.6k	0%	no data
0.15%	Lawrence Steenvoorden	53,571	US$24.4k	0%	no data
0.15%	State Street Global Advisors, Inc.	53,409	US$24.3k	0%	no data
0.14%	ValMark Advisers, Inc.	51,413	US$23.4k	0%	no data
0.12%	Neil Goldman	45,903	US$20.9k	0%	no data
0.1%	Two Sigma Securities, LLC, Asset Management Arm	37,438	US$17.0k	62.2%	no data
0.08%	Group One Trading LP, Asset Management Arm	29,315	US$13.3k	35.2%	no data
0.059%	Jane Street Group, LLC, Asset Management Arm	21,688	US$9.9k	0%	no data
0.057%	HighTower Advisors, LLC	21,012	US$9.6k	0%	no data
0.057%	Citadel Advisors LLC	20,895	US$9.5k	-78.2%	no data
0.049%	Simplex Trading, LLC, Asset Management Arm	17,836	US$8.1k	113%	no data
0.04%	David William Acheson	14,678	US$6.7k	200%	no data