Cytosorbents Ownership | Who Owns Cytosorbents?

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Cytosorbents Ownership Summary

Cytosorbents is owned by 28.15% institutional investors, 9.37% insiders, and 62.49% retail investors. Avenir is the largest institutional shareholder, holding 5.68% of CTSO shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.09% of its assets in Cytosorbents shares.

CTSO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Cytosorbents	28.15%	9.37%	62.49%
Sector	Healthcare Stocks	57.39%	9.93%	32.68%
Industry	Medical Device Stocks	40.18%	9.93%	49.89%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Avenir	3.09M	5.68%	$2.82M
Skylands capital	2.78M	5.11%	$2.53M
Granahan investment management	2.66M	4.91%	$1.87M
Vanguard group	1.95M	3.58%	$1.77M
Neuberger berman group	1.68M	3.09%	$1.53M
Sargent investment group	1.25M	2.29%	$1.31M
Cm management	700.00K	1.29%	$637.00K
Blackrock	655.80K	1.21%	$461.03K
Blackrock funding, inc. /de	627.30K	1.15%	$570.85K
Geode capital management	474.15K	0.87%	$431.59K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Cm management	700.00K	0.57%	$637.00K
Skylands capital	2.78M	0.35%	$2.53M
Avenir	3.09M	0.29%	$2.82M
Sargent investment group	1.25M	0.21%	$1.31M
Granahan investment management	2.66M	0.07%	$1.87M
Seelaus asset management	18.80K	0.02%	$17.11K
Key client fiduciary advisors	34.56K	0.01%	$31.45K
Cable car capital	50.00K	0.00%	$45.50K
Xtx topco	22.79K	0.00%	$20.74K
Atomi financial group	27.44K	0.00%	$24.97K

Top Buyers

Holder	Shares	% Assets	Change
Ubs group	144.93K	-	142.35K
Avenir	3.09M	0.29%	118.39K
Raymond james financial	108.62K	-	108.62K
Engineers gate manager lp	52.75K	0.00%	52.75K
Cable car capital	50.00K	0.00%	50.00K

Top Sellers

Holder	Shares	% Assets	Change
Granahan investment management	2.66M	0.07%	-381.02K
Sargent investment group	1.25M	0.21%	-377.38K
Cm management	700.00K	0.57%	-100.00K
Neuberger berman group	1.68M	0.00%	-99.48K
Amh equity	-	-	-82.80K

New Positions

Holder	Shares	% Assets	Change	Value
Raymond james financial	108.62K	-	108.62K	$98.84K
Engineers gate manager lp	52.75K	0.00%	52.75K	$48.00K
Cable car capital	50.00K	0.00%	50.00K	$45.50K
Goldman sachs group	25.14K	-	25.14K	$22.88K
Hrt financial lp	11.51K	0.00%	11.51K	$10.00K

Sold Out

Holder	Change
Qube research	-1.00
Allworth financial lp	-37.00
Fmr	-285.00
Lazard asset management	-1.09K
Royal bank of canada	-2.00K

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2024	50	-5.66%	15,327,094	-6.70%	28	3.09%	23	35.29%	11	-15.38%
Sep 30, 2024	53	8.16%	16,427,732	-1.05%	30	3.22%	17	54.55%	13	-23.53%
Jun 30, 2024	49	4.26%	16,601,658	-5.30%	30	1.99%	11	-21.43%	17	13.33%
Mar 31, 2024	47	-7.84%	17,531,124	-2.28%	39	2.40%	14	-30.00%	15	7.14%
Dec 31, 2023	51	-5.56%	17,940,758	18.13%	40	3.40%	20	11.11%	14	-12.50%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	1.30M	2.09%	-
Vanguard US Total Market Shares ETF	1.30M	2.08%	-
M&G (ACS) Granahan US Sm Cp Gr GBPZ1AAcc	763.50K	1.40%	-101.78K
Neuberger Berman Intrinsic Value I	726.14K	1.16%	-
Vanguard Institutional Extnd Mkt Idx Tr	568.23K	0.91%	-
JNL Multi-Manager Small Cap Growth A	435.56K	0.71%	-103.92K
Fidelity Extended Market Index	409.30K	0.65%	-2.61K
Victory Small Cap Stock	188.18K	0.34%	-150.71K
Granahan Inv Mgt Sm-Cap Core Gr	188.18K	0.31%	-150.19K
Granahan Small Cap Select	132.41K	0.22%	-22.59K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 13, 2024	MARIANI PETER J	Chief Financial Officer	Buy	$19.29K
Dec 12, 2024	MARIANI PETER J	Chief Financial Officer	Buy	$17.87K
Dec 11, 2024	MARIANI PETER J	Chief Financial Officer	Buy	$10.10K
Dec 13, 2023	Sobel Alan D.	-	Buy	$30.00K
Dec 13, 2023	Sobel Alan D.	-	Buy	$15.79K

Insider Transactions Trends

Date	Buy	Sell
2025 Q1	-	-
2024 Q4	3	-
2024 Q3	-	-
2024 Q2	-	-
2024 Q1	-	-

CTSO Ownership FAQ

Who Owns Cytosorbents?

Cytosorbents shareholders are primarily institutional investors at 28.15%, followed by 9.37% insiders and 62.48% retail investors. The average institutional ownership in Cytosorbents's industry, Medical Device Stocks, is 40.18%, which Cytosorbents falls below.

Who owns the most shares of Cytosorbents?

Cytosorbents’s largest shareholders are Avenir (3.09M shares, 5.68%), Skylands capital (2.78M shares, 5.11%), and Granahan investment management (2.66M shares, 4.91%). Together, they hold 15.70% of Cytosorbents’s total shares outstanding.

Does Blackrock own Cytosorbents?

Yes, BlackRock owns 1.21% of Cytosorbents, totaling 655.8K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 461.03K$. In the last quarter, BlackRock decreased its holdings by -66.63K shares, a -9.22% change.

Who is Cytosorbents’s biggest shareholder by percentage of total assets invested?

Cm management is Cytosorbents’s biggest shareholder by percentage of total assets invested, with 0.57% of its assets in 700K Cytosorbents shares, valued at 637K$.

Who is the top mutual fund holder of Cytosorbents shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Cytosorbents shares, with 2.09% of its total shares outstanding invested in 1.3M Cytosorbents shares.

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