SIMPLEX TRADING, LLC

Position in CCJ — Cameco Corp

CIK 1488542 CHICAGO, IL

Position in CCJ

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

Position Value

$6,065,977

+$1,666,040 QoQ

Shares Held

55,851

+16.1% QoQ

Ownership

0.013%

of shares outstanding

% of Portfolio

0.22%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

18 quarters on record

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

Energy · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $11,709,661 across 3 Uranium names. CCJ ranks #1 (51.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CCJ	Cameco Corp This page	55,851	$6,065,977
2	UUUU	Energy Fuels Inc	307,525	$5,612,331
3	DNN	Denison Mines Corp.	8,882	$31,353

18 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,065,977	55,851	+16.1%	Shares	Sole	2026-05-14
2025-12-31	$4,399,937	48,092	+353.6%	Shares	Sole	2026-02-11
2025-09-30	$889,083	10,602	-94.4%	Shares	Sole	2025-11-12
2025-03-31	$7,746,723	188,210	+231.4%	Shares	Sole	2025-05-12
2024-12-31	$2,918,746	56,796	+26.9%	Shares	Sole	2025-02-11
2024-06-30	$2,202,388	44,764	-67.6%	Shares	Sole	2024-07-25
2023-09-30	$5,478,802	138,214	-76.1%	Shares	Sole	2023-11-01
2022-09-30	$15,361,537	579,462	+73.5%	Shares	Sole	2022-11-04
2022-06-30	$7,019,565	333,947	-28.6%	Shares	Sole	2022-08-03
2022-03-31	$13,609,138	467,668	+404.5%	Shares	Sole	2022-05-02
2021-12-31	$2,021,699	92,696	+24.1%	Shares	Sole	2022-02-23
2021-09-30	$1,623,144	74,696	+30.1%	Shares	Sole	2021-10-28
2021-06-30	$1,101,181	57,413	-23.5%	Shares	Sole	2021-08-12
2021-03-31	$1,247,244	75,090	+96.6%	Shares	Sole	2021-04-26
2020-12-31	$511,853	38,198	-47.1%	Shares	Sole	2021-02-02
2020-09-30	$729,007	72,179	-5.6%	Shares	Sole	2020-10-14
2020-06-30	$784,114	76,499	-71.2%	Shares	Sole	2020-07-13
2020-03-31	$2,026,823	265,291	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.