AVENIR CORP

Position in CTSO — Cytosorbents Corp

CIK 1033475 ALEXANDRIA, VA

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Position in CTSO

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$2,952,129

-$389,904 QoQ

Shares Held

5,215,776

-0.3% QoQ

Ownership

8.31%

of shares outstanding

% of Portfolio

0.36%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CTSO Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

AVENIR CORP holds $3,189,248 across 2 Medical Devices names. CTSO ranks #1 (92.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	CTSO	Cytosorbents Corp This page	5,215,776	$2,952,129
2	PODD	Insulet Corp	1,130	$237,119

All Filings in CTSO

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27 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,952,129	5,215,776	-0.3%	Shares	Sole	2026-05-14
2025-12-31	$3,342,033	5,230,099	0.0%	Shares	Sole	2026-02-13
2025-12-31	$3,342,033	5,230,099	+2.9%	Shares	Sole	2026-02-13
2025-09-30	$4,747,370	5,082,838	+0.5%	Shares	Sole	2025-11-14
2025-06-30	$6,474,927	5,058,537	+0.3%	Shares	Sole	2025-08-14
2025-03-31	$5,044,918	5,044,918	+63.1%	Shares	Sole	2025-05-14
2024-12-31	$2,815,490	3,093,946	0.0%	Shares	Sole	2025-02-13
2024-12-31	$2,815,490	3,093,946	+4.0%	Shares	Sole	2025-02-14
2024-09-30	$4,463,338	2,975,559	+0.2%	Shares	Sole	2024-11-14
2024-06-30	$2,088,094	2,970,262	-6.4%	Shares	Sole	2024-08-14
2024-03-31	$3,014,061	3,172,696	+4.0%	Shares	Sole	2024-05-16
2023-12-31	$3,387,056	3,051,402	+12.3%	Shares	Sole	2024-02-14
2023-09-30	$5,108,706	2,717,397	-0.1%	Shares	Sole	2023-11-14
2023-06-30	$9,763,837	2,719,732	+6.4%	Shares	Sole	2023-08-11
2023-03-31	$8,612,213	2,555,553	+4.4%	Shares	Sole	2023-05-15
2022-12-31	$3,792,987	2,447,089	+5.7%	Shares	Sole	2023-02-14
2022-09-30	$3,148,201	2,314,854	+6.9%	Shares	Sole	2022-11-15
2022-06-30	$4,741,347	2,164,999	-0.5%	Shares	Sole	2022-08-11
2022-03-31	$6,943,063	2,176,509	+21.8%	Shares	Sole	2022-05-16
2021-12-31	$7,488,682	1,787,275	+28.1%	Shares	Sole	2022-02-16
2021-09-30	$11,330,526	1,395,385	+2.1%	Shares	Sole	2021-11-12
2021-06-30	$10,317,444	1,366,549	+280.8%	Shares	Sole	2021-08-13
2021-03-31	$3,114,991	358,870	+73.6%	Shares	Sole	2021-05-14
2020-12-31	$1,647,717	206,740	+8.7%	Shares	Sole	2021-02-12
2020-09-30	$1,517,164	190,240	+13.4%	Shares	Sole	2020-11-13
2020-06-30	$1,660,428	167,720	+11.4%	Shares	Sole	2020-08-14
2020-03-31	$1,164,138	150,600	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.