How many institutions own CTSO stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own CTSO shares is 52, representing 26.47% of the company's common stock.

Who are the major shareholders selling Cytosorbents Corporation stock?

SEELAUS ASSET MANAGEMENT LLC, in the last quarter, reduced its stake in CTSO by -5.46% restricting it's holding to 17.3 thousand shares of worth nearly $16.16K. SEI INVESTMENTS CO also lessened -1.09% of the CTSO shares from its portfolio, reducing its holding to 17.73 thousand shares of worth $16.57K. KESTRA ADVISORY SERVICES, LLC also shunned CTSO shares holding by -8.96% last quarter which brought its holding to 64.53 thousand shares worth $60.28K.

Investors who are buying CTSO stock?

As per its latest 13F filing, JONES FINANCIAL COMPANIES LLLP increased its stake in CTSO by 100% in the last quarter. The institutional holder raised its holding to 593 shares having worth more than $553.00. CENTIVA CAPITAL, LP also added 100% more shares of CTSO to its portfolio, raising its holding to 10.74 thousand shares of worth $10.03K. CHICAGO PARTNERS INVESTMENT GROUP LLC also increased its CTSO shares holding by 15.7% which brought its holding to 14.21 thousand shares worth $11.88K.

CTSO's major insiders: who are they?

The insider with the most stakes in CTSO is NJTC INVESTMENT FUND, LP , 10 percent owner at the company. Additionally, CTSO stock is highly held by Chief Financial Officer MARIANI PETER J and Kraus Al among others.

Did an insider recently sell CTSO stock?

Company executives, directors, and other insiders own 15.46% percent of Cytosorbents Corporation's stock. Within the last six months, there have been 0 transaction(s) in which CTSO insiders have sold stock, totaling 0 shares. Insiders that have sold shares include KRAUS AL, CAPPONI VINCENT, and CHAN PHILLIP P..

Which insider recently purchased CTSO stock?

There have been 0 transaction(s) during the past 6-months in which Cytosorbents Corporation insiders have bought stock, totalling 0 shares

How much of CTSO does insiders own?

Around 0 Cytosorbents Corporation shares are held by insiders, which represents about 15.46% of CTSO stock.

Who is the insider with the largest stake?

CTSO 10 percent owner, NJTC INVESTMENT FUND, LP holds the largest portfolio of the company's shares. CTSO shares owned by NJTC total nearly 4.87 million.

Which institution holds the most shares in CTSO?

NWF ADVISORY SERVICES INC. is the largest institutional owner in CTSO which holds 104.14 thousand shares worth $97.27K or 0.17% of the total CTSO shares outstanding followed by CIBC PRIVATE WEALTH GROUP, LLC with ownership of 172.65 thousand shares representing 0.28% of the CTSO ownership. MAI CAPITAL MANAGEMENT is the third largest stakeholder with 233 shares or 0% of the ownership worth more than $218.00.

Is Cytosorbents Corporation stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the CTSO is concerned, it is a stock which is optionable.

Is there a short position on CTSO's shares?

Number of CTSO shares short is 1.39M. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding CTSO shares are there?

As of today, 62.76M shares of CTSO are outstanding.

Is there many float in CTSO stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, CTSO has 54.98M shares in float.

CTSO short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for CTSO is 4.19.

Cytosorbents (CTSO) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares2.21

Short Percent Of Float2.4

Shares Outstanding62.76M

Shares Float54.98M

Shares Short1.39M

Short Ratio4.19

2.4%

Short % of Float

2.21%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

15.46% Percentage of Shares held by All Insiders

26.47% Percentage of Shares held by All Institutions

31.3% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 26.47% of CTSO shares are held by financial institutions. NWF ADVISORY SERVICES INC. is the top corporate investor, holding 104.14K shares valued at $97.27K. A 0.17% stake in Cytosorbents Corporation is owned by the company. CIBC PRIVATE WEALTH GROUP, LLC owns 172.65K shares valued at $161.27K, which translates its holding of 0.28% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Sep 30, 2025	NWF ADVISORY SERVICES INC.	0.17%	104.14K	97.27K	0	0
Sep 30, 2025	CIBC PRIVATE WEALTH GROUP, LLC	0.28%	172.65K	161.27K	0	0
Sep 30, 2025	MAI CAPITAL MANAGEMENT	0%	233	218	0	0
Sep 30, 2025	YOUR ADVOCATES LTD., LLP	0%	250	233	0	0
Sep 30, 2025	JONES FINANCIAL COMPANIES LLLP	0%	593	553	593	+100.00%
Sep 30, 2025	WELLS FARGO & COMPANY/MN	0%	730	682	0	0
Sep 30, 2025	CENTIVA CAPITAL, LP	0.02%	10.74K	10.03K	10.74K	+100.00%
Sep 30, 2025	CHICAGO PARTNERS INVESTMENT GROUP LLC	0.02%	14.21K	11.88K	1.93K	+15.70%
Sep 30, 2025	LPL FINANCIAL LLC	0.02%	14.91K	13.92K	14.91K	+100.00%
Sep 30, 2025	COUNTRY CLUB BANK /GFN	0.02%	15.23K	14.09K	0	0
Sep 30, 2025	SEELAUS ASSET MANAGEMENT LLC	0.03%	17.3K	16.16K	-1K	-5.46%
Sep 30, 2025	SEI INVESTMENTS CO	0.03%	17.73K	16.57K	-196	-1.09%
Sep 30, 2025	STIFEL FINANCIAL CORP	0.08%	48K	44.84K	0	0
Sep 30, 2025	WAVERLY ADVISORS, LLC	0.09%	55.56K	51.9K	55.56K	+100.00%
Sep 30, 2025	GOLDMAN SACHS GROUP INC	0.1%	60.55K	56.56K	13.76K	+29.40%
Sep 30, 2025	KESTRA ADVISORY SERVICES, LLC	0.1%	64.53K	60.28K	-6.35K	-8.96%
Sep 30, 2025	KEY CLIENT FIDUCIARY ADVISORS, LLC	0.13%	78.46K	73.29K	0	0
Sep 30, 2025	NORTHERN TRUST CORP	0.15%	91.56K	85.53K	0	0
Sep 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.16%	98.22K	91.75K	-33.63K	-25.51%
Sep 30, 2025	RAYMOND JAMES FINANCIAL INC	0.17%	108.72K	101.56K	132	+0.12%
Sep 30, 2025	UBS GROUP AG	0.18%	115.2K	107.6K	-7.13K	-5.83%
Sep 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0.21%	130.42K	122.44K	0	0
Sep 30, 2025	RENAISSANCE TECHNOLOGIES LLC	0.22%	134.81K	125.92K	18.17K	+15.57%
Sep 30, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	20	19	0	0
Sep 30, 2025	PNC FINANCIAL SERVICES GROUP, INC.	0%	31	29	0	0
Sep 30, 2025	ROCKEFELLER CAPITAL MANAGEMENT L.P.	0%	1K	934	1K	+100.00%
Sep 30, 2025	COMERICA BANK	0.01%	3.56K	3.32K	557	+18.57%
Sep 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	5.61K	5.24K	4.07K	+264.56%
Sep 30, 2025	STATE STREET CORP	0.25%	159.29K	148.8K	0	0
Sep 30, 2025		0.28%	172.65K	161.27K	172.65K	+100.00%
Sep 30, 2025	SARGENT INVESTMENT GROUP, LLC	1.18%	738.7K	690.02K	-7.5K	-1.01%
Sep 30, 2025	BLACKROCK, INC.	1.22%	764.81K	714.41K	19.2K	+2.57%
Sep 30, 2025	CM MANAGEMENT, LLC	2.06%	1.29M	1.2M	38.13K	+3.05%
Sep 30, 2025	SKYLANDS CAPITAL, LLC	3.4%	2.13M	1.99M	-489.45K	-18.70%
Sep 30, 2025	SQUAREPOINT OPS LLC	0%	0	-	-11.71K	-100.00%
Sep 30, 2025	JPMORGAN CHASE & CO	0%	372	347	0	0
Sep 30, 2025	CREATIVE PLANNING	0.03%	21.46K	20.04K	-660	-2.98%
Sep 30, 2025	GSA CAPITAL PARTNERS LLP	0.18%	112.22K	105K	112.22K	+100.00%
Sep 30, 2025	NEUBERGER BERMAN GROUP LLC	2.55%	1.6M	1.49M	6.31K	+0.40%
Sep 30, 2025	CITADEL ADVISORS LLC	0%	0	-	-28.9K	-100.00%
Sep 30, 2025	SBI SECURITIES CO., LTD.	0%	1	1	-99	-99.00%
Sep 30, 2025	ROYAL BANK OF CANADA	0%	1.1K	1K	300	+37.50%
Sep 30, 2025	TWO SIGMA SECURITIES, LLC	0.03%	15.74K	14.7K	15.74K	+100.00%
Sep 30, 2025	ATOMI FINANCIAL GROUP, INC.	0.04%	27.44K	25.64K	0	0
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0.06%	38.7K	36.15K	-371	-0.95%
Sep 30, 2025	VANGUARD GROUP INC	3.52%	2.2M	2.06M	79.54K	+3.74%
Sep 30, 2025	MERIT FINANCIAL GROUP, LLC	0.02%	15.3K	14.29K	0	0
Sep 30, 2025	MORGAN STANLEY	0.17%	107.26K	100.19K	1.85K	+1.75%
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.96%	601.45K	561.98K	0	0
Sep 30, 2025	N.E.W. ADVISORY SERVICES LLC	0%	0	-	-2.72K	-100.00%
Sep 30, 2025	AVENIR CORP	8.12%	5.08M	4.75M	24.3K	+0.48%
Jun 30, 2025	BLACKROCK, INC.	1.19%	745.61K	954.39K	118.31K	+18.86%
Jun 30, 2025	SARGENT INVESTMENT GROUP, LLC	1.19%	746.2K	673.07K	-77.3K	-9.39%
Jun 30, 2025	NEUBERGER BERMAN GROUP LLC	2.54%	1.59M	2.03M	-87.94K	-5.24%
Jun 30, 2025	VANGUARD GROUP INC	3.39%	2.12M	2.72M	175.21K	+8.99%
Jun 30, 2025	AVENIR CORP	8.08%	5.06M	6.47M	13.62K	+0.27%
Jun 30, 2025	N.E.W. ADVISORY SERVICES LLC	0%	2.72K	3.48K	0	0
Jun 30, 2025	MERIT FINANCIAL GROUP, LLC	0.02%	15.3K	19.58K	214	+1.42%
Jun 30, 2025	SEELAUS ASSET MANAGEMENT LLC	0.03%	18.3K	23.42K	0	0
Jun 30, 2025	NWF ADVISORY SERVICES INC.	0.17%	104.14K	133.3K	0	0
Jun 30, 2025	GRANAHAN INVESTMENT MANAGEMENT, LLC	0%	0	-	-358.42K	-100.00%
Jun 30, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	20	26	17	+566.67%
Jun 30, 2025	PNC FINANCIAL SERVICES GROUP, INC.	0%	31	40	0	0
Jun 30, 2025		0%	100	128	0	0
Jun 30, 2025	SQUAREPOINT OPS LLC	0.02%	11.71K	14.99K	-28.84K	-71.12%
Jun 30, 2025	CHICAGO PARTNERS INVESTMENT GROUP LLC	0.02%	12.28K	12.53K	-1.16K	-8.64%
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0.06%	39.07K	50.02K	-4.91K	-11.15%
Jun 30, 2025	GOLDMAN SACHS GROUP INC	0.07%	46.8K	59.9K	-15.87K	-25.32%
Jun 30, 2025	STIFEL FINANCIAL CORP	0.08%	48K	61.44K	0	0
Jun 30, 2025	HEXAGON CAPITAL PARTNERS LLC	0%	0	-	-3.33K	-100.00%
Jun 30, 2025	XTX TOPCO LTD	0%	0	-	-30.11K	-100.00%
Jun 30, 2025	CITADEL ADVISORS LLC	0%	0	-	-8.18K	-100.00%
Jun 30, 2025	GSA CAPITAL PARTNERS LLP	0%	0	-	-53.03K	-100.00%
Jun 30, 2025	COMERICA BANK	0%	3K	3.84K	-307	-9.28%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.96%	601.45K	770.06K	-12.4K	-2.02%
Jun 30, 2025	SBI SECURITIES CO., LTD.	0%	100	128	0	0
Jun 30, 2025	ATOMI FINANCIAL GROUP, INC.	0.04%	27.44K	35.13K	-200	-0.72%
Jun 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0.21%	130.42K	166.94K	-33.33K	-20.35%
Jun 30, 2025	SKYLANDS CAPITAL, LLC	4.18%	2.62M	3.35M	-385.99K	-12.85%
Jun 30, 2025	TWO SIGMA SECURITIES, LLC	0%	0	-	-15.29K	-100.00%
Jun 30, 2025	CM MANAGEMENT, LLC	2%	1.25M	1.6M	295.92K	+31.02%
Jun 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.21%	131.85K	168.77K	131.85K	+100.00%
Jun 30, 2025	KESTRA ADVISORY SERVICES, LLC	0.11%	70.88K	90.73K	0	0
Jun 30, 2025	MORGAN STANLEY	0.17%	105.41K	134.93K	-297	-0.28%
Jun 30, 2025	EP WEALTH ADVISORS, LLC	0.04%	28K	35.84K	0	0
Jun 30, 2025	KEY CLIENT FIDUCIARY ADVISORS, LLC	0.13%	78.46K	100.43K	0	0
Jun 30, 2025	NORTHERN TRUST CORP	0.15%	91.56K	117.2K	0	0
Jun 30, 2025	RAYMOND JAMES FINANCIAL INC	0.17%	108.59K	138.99K	-1.75K	-1.59%
Jun 30, 2025	RENAISSANCE TECHNOLOGIES LLC	0.19%	116.64K	149.3K	-108.62K	-48.22%
Jun 30, 2025	UBS GROUP AG	0.2%	122.33K	156.59K	7.13K	+6.19%
Jun 30, 2025	COUNTRY CLUB BANK /GFN	0.02%	15.23K	18.73K	0	0
Jun 30, 2025	SEI INVESTMENTS CO	0.03%	17.93K	22.94K	-8.61K	-32.45%
Jun 30, 2025	CREATIVE PLANNING	0.04%	22.12K	28.31K	-1K	-4.33%
Jun 30, 2025	STATE STREET CORP	0.25%	159.29K	203.9K	0	0
Jun 30, 2025	CIBC PRIVATE WEALTH GROUP, LLC	0.28%	172.65K	220.99K	0	0
Jun 30, 2025	MAI CAPITAL MANAGEMENT	0%	233	299	0	0
Jun 30, 2025	YOUR ADVOCATES LTD., LLP	0%	250	320	0	0
Jun 30, 2025	JPMORGAN CHASE & CO	0%	372	476	-113	-23.30%
Jun 30, 2025	WELLS FARGO & COMPANY/MN	0%	730	934	480	+192.00%
Jun 30, 2025	ROYAL BANK OF CANADA	0%	800	1K	800	+100.00%
Jun 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0%	1.54K	1.97K	-3.97K	-72.05%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0.07%	43.98K	43.98K	9.53K	+27.66%
Mar 31, 2025	GRANAHAN INVESTMENT MANAGEMENT, LLC	0.66%	358.42K	358.42K	-846.16K	-70.25%
Mar 31, 2025	RAYMOND JAMES FINANCIAL INC	0.18%	110.34K	110.34K	1.72K	+1.58%
Mar 31, 2025	MERIT FINANCIAL GROUP, LLC	0.02%	15.08K	15.08K	83	+0.55%
Mar 31, 2025	HEXAGON CAPITAL PARTNERS LLC	0.01%	3.33K	3.33K	0	0
Mar 31, 2025	N.E.W. ADVISORY SERVICES LLC	0%	2.72K	2.72K	2.72K	+100.00%
Mar 31, 2025	PNC FINANCIAL SERVICES GROUP, INC.	0%	31	31	0	0
Mar 31, 2025	XTX TOPCO LTD	0.05%	30.11K	30.11K	7.32K	+32.12%
Mar 31, 2025	VANGUARD GROUP INC	3.21%	1.95M	1.95M	0	0
Mar 31, 2025	NEUBERGER BERMAN GROUP LLC	2.77%	1.68M	1.7M	-2.26K	-0.13%
Mar 31, 2025	RENAISSANCE TECHNOLOGIES LLC	0.37%	225.25K	225.25K	137.23K	+155.91%
Mar 31, 2025	CIBC PRIVATE WEALTH GROUP, LLC	0.28%	172.65K	165.74K	0	0
Mar 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0.27%	163.75K	163.75K	36.53K	+28.71%
Mar 31, 2025	STATE STREET CORP	0.26%	159.29K	159.29K	0	0
Mar 31, 2025	UBS GROUP AG	0.19%	115.2K	115.2K	-29.73K	-20.51%
Mar 31, 2025	GOLDMAN SACHS GROUP INC	0.1%	62.66K	62.66K	37.52K	+149.22%
Mar 31, 2025	GSA CAPITAL PARTNERS LLP	0.09%	53.03K	53K	53.03K	+100.00%
Mar 31, 2025	AVENIR CORP	8.31%	5.04M	5.04M	1.95M	+63.06%
Mar 31, 2025	SKYLANDS CAPITAL, LLC	4.94%	3M	3M	221.08K	+7.95%
Mar 31, 2025	MORGAN STANLEY	0.17%	105.71K	105.71K	-918	-0.86%
Mar 31, 2025	NORTHERN TRUST CORP	0.15%	91.56K	91.56K	0	0
Mar 31, 2025	KEY CLIENT FIDUCIARY ADVISORS, LLC	0.13%	78.46K	78.46K	43.9K	+127.04%
Mar 31, 2025	KESTRA ADVISORY SERVICES, LLC	0.12%	70.88K	70.88K	15.88K	+28.87%
Mar 31, 2025	STIFEL FINANCIAL CORP	0.08%	48K	48K	0	0
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	5.5K	5.5K	3.41K	+162.67%
Mar 31, 2025	JPMORGAN CHASE & CO	0%	485	485	-9	-1.82%
Mar 31, 2025	WELLS FARGO & COMPANY/MN	0%	250	250	0	0
Mar 31, 2025		0%	100	100	0	0
Mar 31, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	3	3	0	0
Mar 31, 2025	JOHNSON INVESTMENT COUNSEL INC	0%	0	-	-11.53K	-100.00%
Mar 31, 2025	MILLENNIUM MANAGEMENT LLC	0%	0	-	-33.28K	-100.00%
Mar 31, 2025	TWO SIGMA SECURITIES, LLC	0.03%	15.29K	15.29K	15.29K	+100.00%
Mar 31, 2025	CHICAGO PARTNERS INVESTMENT GROUP LLC	0.02%	13.44K	11.87K	-171	-1.26%
Mar 31, 2025	COUNTRY CLUB BANK /GFN	0.03%	15.23K	15.23K	0	0
Mar 31, 2025	SEELAUS ASSET MANAGEMENT LLC	0.03%	18.3K	18.3K	-500	-2.66%
Mar 31, 2025	SQUAREPOINT OPS LLC	0.07%	40.55K	40.55K	40.55K	+100.00%
Mar 31, 2025	EP WEALTH ADVISORS, LLC	0.05%	28K	28K	0	0
Mar 31, 2025	ATOMI FINANCIAL GROUP, INC.	0.05%	27.64K	27.64K	200	+0.73%
Mar 31, 2025	SEI INVESTMENTS CO	0.04%	26.54K	26.62K	10.98K	+70.58%
Mar 31, 2025	CREATIVE PLANNING	0.04%	23.12K	23.12K	1.82K	+8.55%
Mar 31, 2025	CM MANAGEMENT, LLC	1.57%	954.08K	954.08K	254.08K	+36.30%
Mar 31, 2025	SARGENT INVESTMENT GROUP, LLC	1.36%	823.5K	823.5K	-425.36K	-34.06%
Mar 31, 2025	BLACKROCK, INC.	1.03%	627.31K	627.31K	0	0
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.01%	613.86K	614.05K	139.7K	+29.46%
Mar 31, 2025	YOUR ADVOCATES LTD., LLP	0%	250	250	0	0
Mar 31, 2025	MAI CAPITAL MANAGEMENT	0%	233	233	130	+126.21%
Mar 31, 2025	CITADEL ADVISORS LLC	0.01%	6.9K	6.9K	6.9K	+100.00%
Mar 31, 2025	COMERICA BANK	0.01%	3.31K	3.31K	-380	-10.31%
Mar 31, 2024	QUBE RESEARCH & TECHNOLOGIES LTD	0%	1	1	0	0
Mar 31, 2024	REGAL INVESTMENT ADVISORS LLC	0.03%	11.51K	10.93K	-34.32K	-74.88%
Mar 31, 2024	SEI INVESTMENTS CO	0.03%	14.47K	13.85K	4.07K	+39.13%
Mar 31, 2024	RESOURCES INVESTMENT ADVISORS, LLC.	0.03%	15K	14.25K	0	0
Mar 31, 2024	COUNTRY CLUB BANK /GFN	0.03%	15.23K	14.46K	0	0
Mar 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.04%	16.2K	15.39K	16.2K	+100.00%
Mar 31, 2024	SEELAUS ASSET MANAGEMENT LLC	0.04%	18.95K	18K	0	0
Mar 31, 2024	JOHNSON INVESTMENT COUNSEL INC	0.04%	19.39K	18.42K	-584	-2.92%
Mar 31, 2024	CREATIVE PLANNING	0.05%	21.3K	20.23K	0	0
Mar 31, 2024	TEXAS CAPITAL BANK WEALTH MANAGEMENT SERVICES INC	0.05%	23.17K	22.01K	-7.5K	-24.46%
Mar 31, 2024	CHICAGO PARTNERS INVESTMENT GROUP LLC	0.07%	30.67K	26.96K	-169	-0.55%
Mar 31, 2024	KEY CLIENT FIDUCIARY ADVISORS, LLC	0.08%	34.56K	32.83K	22.56K	+187.98%
Mar 31, 2024	MILLENNIUM MANAGEMENT LLC	0.08%	35.84K	34.05K	-9.29K	-20.57%
Mar 31, 2024	BANK OF AMERICA CORP /DE/	0.08%	36.9K	35.05K	-29.88K	-44.75%
Mar 31, 2024	NEUBERGER BERMAN GROUP LLC	4.28%	1.91M	1.81M	110.77K	+6.15%
Mar 31, 2024	VANGUARD GROUP INC	4.37%	1.95M	1.85M	0	0
Mar 31, 2024	SKYLANDS CAPITAL, LLC	6.44%	2.88M	2.73M	-378.66K	-11.64%
Mar 31, 2024	GRANAHAN INVESTMENT MANAGEMENT, LLC	6.82%	3.04M	2.89M	-573.31K	-15.85%
Mar 31, 2024	AVENIR CORP	7.1%	3.17M	3.01M	121.29K	+3.98%
Mar 31, 2024	STIFEL FINANCIAL CORP	0.1%	45K	42.75K	0	0
Mar 31, 2024	CM MANAGEMENT, LLC	1.85%	825K	783.75K	410K	+98.80%
Mar 31, 2024	SARGENT INVESTMENT GROUP, LLC	3.06%	1.37M	1.3M	57.57K	+4.40%
Mar 31, 2024	DIMENSIONAL FUND ADVISORS LP	0%	0	-	-56.57K	-100.00%
Mar 31, 2024	US BANCORP \DE\	0%	0	-	-10K	-100.00%
Mar 31, 2024	BNP PARIBAS ARBITRAGE, SNC	0%	3	3	0	0
Mar 31, 2024	JANE STREET GROUP, LLC	0.1%	46.66K	44.32K	46.66K	+100.00%
Mar 31, 2024	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0%	0	-	-15.99K	-100.00%
Mar 31, 2024	PNC FINANCIAL SERVICES GROUP, INC.	0%	31	29	-5	-13.89%
Mar 31, 2024	ALLWORTH FINANCIAL LP	0%	37	36	0	0
Mar 31, 2024	UBS GROUP AG	0%	57	54	-2.9K	-98.08%
Mar 31, 2024	YOUR ADVOCATES LTD., LLP	0%	250	238	0	0
Mar 31, 2024	JPMORGAN CHASE & CO	0%	372	353	0	0
Mar 31, 2024	WELLS FARGO & COMPANY/MN	0%	796	757	255	+47.13%
Mar 31, 2024	COMERICA BANK	0%	837	795	318	+61.27%
Mar 31, 2024	LAZARD ASSET MANAGEMENT LLC	0%	1.09K	1K	152	+16.20%
Mar 31, 2024	SOA WEALTH ADVISORS, LLC.	0.01%	2.22K	2.11K	0	0
Mar 31, 2024	HEXAGON CAPITAL PARTNERS LLC	0.01%	3.33K	3.17K	0	0
Mar 31, 2024	BANK OF NEW YORK MELLON CORP	0.01%	3.64K	3.46K	-18.79K	-83.77%
Mar 31, 2024	TOWER RESEARCH CAPITAL LLC (TRC)	0.02%	8.02K	7.62K	1.87K	+30.37%
Mar 31, 2024	BRADLEY FOSTER & SARGENT INC/CT	0.02%	10K	9.5K	0	0
Mar 31, 2024	RAYMOND JAMES & ASSOCIATES	0.11%	50K	47.5K	0	0
Mar 31, 2024	RAYMOND JAMES FINANCIAL SERVICES ADVISORS, INC.	0.14%	60.59K	57.56K	0	0
Mar 31, 2024	NORTHERN TRUST CORP	0.17%	75.01K	71.26K	0	0
Mar 31, 2024	RENAISSANCE TECHNOLOGIES LLC	0.18%	79.62K	76K	-95.7K	-54.59%
Mar 31, 2024	ADVISOR GROUP HOLDINGS, INC.	0.25%	113.81K	108.12K	1.1K	+0.98%
Mar 31, 2024	MORGAN STANLEY	0.26%	116.39K	110.57K	-3.59K	-2.99%
Mar 31, 2024	STATE STREET CORP	0.31%	140.29K	133.28K	-10.8K	-7.15%
Mar 31, 2024	CIBC PRIVATE WEALTH GROUP, LLC	0.39%	172.65K	156.94K	0	0
Mar 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	0.98%	438.3K	416.47K	73.38K	+20.11%
Mar 31, 2024	BLACKROCK INC.	1.62%	722.44K	686.31K	-3.89K	-0.53%
Mar 31, 2024	ADVISORY SERVICES NETWORK, LLC	0%	0	-	-2.2K	-100.00%
Mar 31, 2024	SIMPLEX TRADING, LLC	0%	0	-	-1.46K	-100.00%
Dec 31, 2023	SKYLANDS CAPITAL, LLC	7.33%	3.25M	3.61M	309.54K	+10.51%
Dec 31, 2023	BNP PARIBAS ARBITRAGE, SNC	0%	3	3	0	0
Dec 31, 2023	PNC FINANCIAL SERVICES GROUP, INC.	0%	36	40	36	+100.00%
Dec 31, 2023	ALLWORTH FINANCIAL LP	0%	37	42	0	0
Dec 31, 2023	YOUR ADVOCATES LTD., LLP	0%	250	278	0	0
Dec 31, 2023	COMERICA BANK	0%	519	576	261	+101.16%
Dec 31, 2023	WELLS FARGO & COMPANY/MN	0%	541	601	16	+3.05%
Dec 31, 2023	LAZARD ASSET MANAGEMENT LLC	0%	938	1K	938	+100.00%
Dec 31, 2023	SIMPLEX TRADING, LLC	0%	1.46K	1K	291	+24.91%
Dec 31, 2023	ADVISORY SERVICES NETWORK, LLC	0.01%	2.2K	2.44K	2.2K	+100.00%
Dec 31, 2023	SOA WEALTH ADVISORS, LLC.	0.01%	2.22K	2.47K	0	0
Dec 31, 2023	UBS GROUP AG	0.01%	2.96K	3.29K	2.76K	+1,403.05%
Dec 31, 2023	HEXAGON CAPITAL PARTNERS LLC	0.01%	3.33K	3.7K	0	0
Dec 31, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	6.16K	6.83K	5.35K	+666.50%
Dec 31, 2023	BRADLEY FOSTER & SARGENT INC/CT	0.02%	10K	11.1K	0	0
Dec 31, 2023	US BANCORP \DE\	0.02%	10K	11.1K	0	0
Dec 31, 2023	SEI INVESTMENTS CO	0.02%	10.4K	11.54K	-3.43K	-24.82%
Dec 31, 2023	KEY CLIENT FIDUCIARY ADVISORS, LLC	0.03%	12K	13.32K	-1K	-7.69%
Dec 31, 2023	RESOURCES INVESTMENT ADVISORS, LLC.	0.03%	15K	16.65K	0	0
Dec 31, 2023	COUNTRY CLUB BANK /GFN	0.03%	15.23K	16.52K	0	0
Dec 31, 2023	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.04%	15.99K	17.75K	0	0
Dec 31, 2023	SEELAUS ASSET MANAGEMENT LLC	0.04%	18.95K	21.04K	-1.5K	-7.34%
Dec 31, 2023	GRANAHAN INVESTMENT MANAGEMENT, LLC	8.15%	3.62M	4.02M	2.07M	+133.07%
Dec 31, 2023	JOHNSON INVESTMENT COUNSEL INC	0.05%	19.97K	22.17K	19.97K	+100.00%
Dec 31, 2023	VIRTU FINANCIAL LLC	0.05%	20.22K	22K	20.22K	+100.00%
Dec 31, 2023	CREATIVE PLANNING	0.05%	21.3K	23.64K	0	0
Dec 31, 2023	BANK OF NEW YORK MELLON CORP	0.05%	22.43K	24.89K	-29.19K	-56.55%
Dec 31, 2023	JPMORGAN CHASE & CO	0%	372	413	0	0
Dec 31, 2023	TEXAS CAPITAL BANK WEALTH MANAGEMENT SERVICES INC	0.07%	30.67K	34.04K	0	0
Dec 31, 2023	CHICAGO PARTNERS INVESTMENT GROUP LLC	0.07%	30.84K	27.44K	-5.52K	-15.19%
Dec 31, 2023	STIFEL FINANCIAL CORP	0.1%	45K	49.95K	45K	+100.00%
Dec 31, 2023	MILLENNIUM MANAGEMENT LLC	0.1%	45.13K	50.09K	-119.93K	-72.66%
Dec 31, 2023	REGAL INVESTMENT ADVISORS LLC	0.1%	45.82K	50.87K	23.01K	+100.89%
Dec 31, 2023	RAYMOND JAMES & ASSOCIATES	0.11%	50K	55.5K	50K	+100.00%
Dec 31, 2023	DIMENSIONAL FUND ADVISORS LP	0.13%	56.57K	62.72K	-22.89K	-28.81%
Dec 31, 2023	RAYMOND JAMES FINANCIAL SERVICES ADVISORS, INC.	0.14%	60.59K	67.26K	-1.34K	-2.16%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0.15%	66.78K	74.13K	-1.13K	-1.67%
Dec 31, 2023	NORTHERN TRUST CORP	0.17%	75.01K	83.26K	-2	0.00%
Dec 31, 2023	ADVISOR GROUP HOLDINGS, INC.	0.25%	112.71K	125.11K	-72.57K	-39.17%
Dec 31, 2023	MORGAN STANLEY	0.27%	119.98K	133.18K	-3.33K	-2.70%
Dec 31, 2023	STATE STREET CORP	0.34%	151.09K	167.71K	0	0
Dec 31, 2023	CIBC PRIVATE WEALTH GROUP, LLC	0.39%	172.65K	191.64K	50K	+40.77%
Dec 31, 2023	RENAISSANCE TECHNOLOGIES LLC	0.4%	175.32K	195K	56.22K	+47.20%
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.82%	364.92K	405.16K	0	0
Dec 31, 2023	CM MANAGEMENT, LLC	0.94%	415K	460.65K	-35K	-7.78%
Dec 31, 2023	BLACKROCK INC.	1.64%	726.32K	806.22K	-444	-0.06%
Dec 31, 2023	SARGENT INVESTMENT GROUP, LLC	2.95%	1.31M	1.45M	51.7K	+4.11%
Dec 31, 2023	NEUBERGER BERMAN GROUP LLC	4.06%	1.8M	2M	299.1K	+19.90%
Dec 31, 2023	VANGUARD GROUP INC	4.39%	1.95M	2.16M	0	0
Dec 31, 2023	AVENIR CORP	6.88%	3.05M	3.39M	334.01K	+12.29%

Insiders

Among the CTSO insiders holding of 15.46% of the stake in company, NJTC INVESTMENT FUND, LP, 10 percent owner, holds the largest shares of 4.87M. MARIANI PETER J, Chief Financial Officer, is the second largest CTSO insider with ownership of 401.36K shares. KRAUS AL, , stands third with possession of 130.05K shares of that stake.

Insiders	Designation	Shares Held
NJTC INVESTMENT FUND, LP	10 percent owner	4.87M
MARIANI PETER J	Chief Financial Officer	401.36K
KRAUS AL		130.05K
CHAN PHILLIP P.	Chief Executive Officer	26.32K
BATOR MICHAEL G.	director	13.16K
BLOCH KATHLEEN P.	Chief Financial Officer	13.16K
DELIARGYRIS EFTHYMIOS	Chief Medical Officer	7.89K
SOBEL ALAN D.	director	7.89K
CAPPONI VINCENT	President & COO	6.58K
KIM JINY	director	2.63K
JONES EDWARD RAYMOND	director	2.63K
MORTENSEN ERIC R.	Chief Medical Officer	2.5K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Dec 13, 2024	MARIANI PETER J	PURCHASE	0.96	20K	19.29K	401.36K
Dec 13, 2023	CAPPONI VINCENT	PURCHASE	2.00	6.58K	13.16K	6.58K
Dec 13, 2023	CHAN PHILLIP P.	PURCHASE	2.00	26.32K	52.63K	26.32K
Dec 13, 2023	DELIARGYRIS EFTHYMIOS	PURCHASE	2.00	7.89K	15.79K	7.89K
Dec 13, 2023	BLOCH KATHLEEN P.	PURCHASE	2.00	13.16K	26.31K	13.16K
Dec 13, 2023	JONES EDWARD RAYMOND	PURCHASE	2.00	2.63K	5.26K	2.63K
Dec 13, 2023	BATOR MICHAEL G.	PURCHASE	2.00	13.16K	26.31K	13.16K
Dec 13, 2023	KIM JINY	PURCHASE	2.00	2.63K	5.26K	2.63K
Dec 13, 2023	SOBEL ALAN D.	PURCHASE	2.00	7.89K	15.79K	7.89K
Aug 07, 2023	BATOR MICHAEL G.	PURCHASE	3.20	1K	3.2K	86.8K
Aug 04, 2023	BATOR MICHAEL G.	PURCHASE	3.23	1K	3.23K	85.8K
May 25, 2023	BLOCH KATHLEEN P.	PURCHASE	2.85	1.1K	3.13K	44.8K
May 10, 2023	BLOCH KATHLEEN P.	PURCHASE	3.06	5K	15.3K	38.7K
Dec 08, 2022	CHAN PHILLIP P.	PURCHASE	1.26	5.86K	7.38K	897.28K
Dec 07, 2022	CHAN PHILLIP P.	PURCHASE	1.26	9.85K	12.41K	891.42K
Dec 06, 2022	CHAN PHILLIP P.	PURCHASE	1.26	14.29K	18.06K	881.57K
Sep 08, 2022	CHAN PHILLIP P.	PURCHASE	1.70	35K	59.5K	867.28K
Aug 25, 2022	KIM JINY	PURCHASE	1.91	1K	1.91K	70.3K
Jun 21, 2022	CAPPONI VINCENT	PURCHASE	1.80	2K	3.6K	443.55K
Jun 16, 2022	CAPPONI VINCENT	PURCHASE	2.00	3K	6K	441.55K
Jun 16, 2022	CHAN PHILLIP P.	PURCHASE	1.85	2.22K	4.11K	768.35K
Jun 09, 2022	CHAN PHILLIP P.	PURCHASE	2.17	16K	34.78K	766.13K
Jun 06, 2022	BLOCH KATHLEEN P.	PURCHASE	1.90	8.7K	16.53K	33.7K
May 23, 2022	CAPPONI VINCENT	PURCHASE	2.04	1.57K	3.21K	435.12K
May 18, 2022	BATOR MICHAEL G.	PURCHASE	2.18	2K	4.36K	75.8K
May 16, 2022	JONES EDWARD RAYMOND	PURCHASE	2.24	1.68K	3.75K	81.32K
May 11, 2022	SOBEL ALAN D.	PURCHASE	2.00	1.2K	2.4K	70.5K
May 06, 2022	KRAUS AL	PURCHASE	1.96	5K	9.8K	130.05K
Dec 30, 2021	CHAN PHILLIP P.	PURCHASE	4.05	5.46K	22.12K	768.44K
Dec 29, 2021	CHAN PHILLIP P.	PURCHASE	4.04	100	404	753.54K
Dec 10, 2021	CHAN PHILLIP P.	PURCHASE	5.25	5K	26.25K	753.44K
Nov 23, 2021	BLOCH KATHLEEN P.	PURCHASE	4.98	4K	19.92K	25K
Aug 31, 2021	KRAUS AL	SALE	9.40	4K	37.59K	125.05K
Nov 10, 2020	KRAUS AL	SALE	8.00	8K	64K	125.05K
Apr 27, 2020	CAPPONI VINCENT	SALE	10.00	10K	100K	417.65K
Mar 10, 2020	CAPPONI VINCENT	SALE	6.00	4.68K	28.06K	417.65K
Dec 10, 2019	BLOCH KATHLEEN P.	PURCHASE	3.68	3K	11.03K	291.9K
Dec 06, 2019	CHAN PHILLIP P.	PURCHASE	3.60	16.5K	59.4K	657.69K
Nov 26, 2019	BLOCH KATHLEEN P.	PURCHASE	4.27	1K	4.27K	21K
Aug 16, 2019	BLOCH KATHLEEN P.	PURCHASE	4.83	6.5K	31.4K	20K
Aug 09, 2019	BLOCH KATHLEEN P.	PURCHASE	5.52	1.5K	8.27K	13.5K
May 10, 2019	BLOCH KATHLEEN P.	PURCHASE	6.49	3K	19.48K	3K
Dec 07, 2018	CHAN PHILLIP P.	SALE	9.37	24.34K	228.03K	503.28K
Sep 07, 2018	CHAN PHILLIP P.	SALE	14.11	2.73K	38.53K	438.28K
Sep 06, 2018	CHAN PHILLIP P.	SALE	14.75	2.9K	42.78K	441.01K
Sep 05, 2018	CHAN PHILLIP P.	SALE	14.85	5.19K	77.03K	443.91K
Aug 30, 2018	KRAUS AL	SALE	14.47	26K	376.28K	125.05K
Aug 29, 2018	CAPPONI VINCENT	SALE	14.00	20K	280K	332.77K
Aug 28, 2018	CAPPONI VINCENT	SALE	13.00	9.57K	124.35K	332.77K
Aug 28, 2018	BLOCH KATHLEEN P.	SALE	13.50	10K	135K	250K
Aug 03, 2018	CAPPONI VINCENT	SALE	13.08	7.6K	99.41K	332.77K
Aug 03, 2018	BLOCH KATHLEEN P.	SALE	12.15	3.6K	43.74K	250K
Aug 02, 2018	CAPPONI VINCENT	SALE	13.00	2.84K	36.86K	332.77K
Jun 15, 2018	CAPPONI VINCENT	SALE	12.00	8.63K	103.6K	347.98K
Jun 14, 2018	CAPPONI VINCENT	SALE	12.00	11.37K	136.4K	356.62K
May 17, 2018	CAPPONI VINCENT	SALE	10.00	20K	200K	317.55K
May 16, 2018	CAPPONI VINCENT	SALE	9.00	4.85K	43.61K	317.55K
May 16, 2018	BLOCH KATHLEEN P.	SALE	9.00	12.4K	111.6K	253.3K
May 15, 2018	BLOCH KATHLEEN P.	SALE	8.75	12.4K	108.5K	253.3K
May 15, 2018	CAPPONI VINCENT	SALE	9.00	3.15K	28.39K	317.55K
May 14, 2018	BLOCH KATHLEEN P.	SALE	8.50	10K	85K	253.3K
Apr 17, 2018	BLOCH KATHLEEN P.	SALE	8.25	120	990	253.3K
Mar 15, 2018	BLOCH KATHLEEN P.	SALE	8.25	11.18K	92.2K	250.07K
Mar 13, 2018	BLOCH KATHLEEN P.	SALE	8.25	1.1K	9.11K	250.07K
Feb 21, 2018	BLOCH KATHLEEN P.	SALE	8.00	10K	80K	258.87K
Jan 12, 2018	BLOCH KATHLEEN P.	SALE	7.75	12.4K	96.1K	228.64K
Jan 08, 2018	BLOCH KATHLEEN P.	SALE	7.50	10K	75K	228.64K
Nov 27, 2017	CAPPONI VINCENT	SALE	7.00	4K	28K	271.06K
Jun 09, 2017	MORTENSEN ERIC R.	PURCHASE	4.04	2.5K	10.1K	2.5K
Jun 09, 2017	BATOR MICHAEL G.	PURCHASE	4.12	1.5K	6.18K	70.5K
Jun 08, 2017	CAPPONI VINCENT	PURCHASE	4.00	2.5K	10K	275.06K
Jun 08, 2017	CHAN PHILLIP P.	PURCHASE	4.00	3.7K	14.8K	399.91K
Jun 08, 2017	JONES EDWARD RAYMOND	PURCHASE	4.00	2K	8K	68.5K
Jun 05, 2017	CHAN PHILLIP P.	PURCHASE	4.00	6.3K	25.2K	396.21K
May 15, 2017	BLOCH KATHLEEN P.	PURCHASE	4.34	1K	4.34K	9K
Dec 09, 2016	CHAN PHILLIP P.	PURCHASE	5.40	4.6K	24.84K	448.1K
Dec 06, 2016	BLOCH KATHLEEN P.	PURCHASE	4.83	1K	4.83K	8K
Aug 24, 2016	CHAN PHILLIP P.	PURCHASE	4.89	5K	24.45K	121.65K
Jun 07, 2016	BATOR MICHAEL G.	PURCHASE	4.88	3K	14.64K	3K
Dec 09, 2015	BLOCH KATHLEEN P.	PURCHASE	7.05	2.13K	14.98K	2.13K
Oct 29, 2015	CAPPONI VINCENT	SALE	7.50	4K	30K	16.72K
Oct 15, 2015	KRAUS AL	SALE	6.22	6.77K	42.12K	55.75K
Oct 08, 2015	KRAUS AL	SALE	6.39	10K	63.91K	55.75K
Oct 01, 2015	KRAUS AL	SALE	6.26	10K	62.59K	55.75K
Sep 24, 2015	KRAUS AL	SALE	6.44	10K	64.36K	55.75K
Sep 17, 2015	KRAUS AL	SALE	6.64	10K	66.37K	55.75K
Oct 14, 2014	NJTC INVESTMENT FUND, LP	SALE	0.24	5.75K	1.38K	4.87M
Oct 10, 2014	NJTC INVESTMENT FUND, LP	SALE	0.24	8.3K	1.99K	4.88M
Oct 09, 2014	NJTC INVESTMENT FUND, LP	SALE	0.24	41.33K	9.92K	4.88M
Sep 15, 2014	NJTC INVESTMENT FUND, LP	SALE	6.00	704	4.22K	55.38K
Sep 12, 2014	NJTC INVESTMENT FUND, LP	SALE	6.00	218	1.31K	56.09K
Sep 11, 2014	NJTC INVESTMENT FUND, LP	SALE	6.00	1K	6K	56.3K
Sep 05, 2014	NJTC INVESTMENT FUND, LP	SALE	6.00	4K	24K	57.3K
Aug 28, 2014	NJTC INVESTMENT FUND, LP	SALE	5.90	8.58K	50.6K	61.3K
Aug 27, 2014	NJTC INVESTMENT FUND, LP	SALE	6.10	14.4K	87.84K	69.88K
Aug 26, 2014	NJTC INVESTMENT FUND, LP	SALE	6.01	40K	240.4K	84.28K

CTSO Stock Ownership Breakdown

Cytosorbents

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions