Simplex Trading, LLC Mereo Biopharma Group PLC Transaction History

Simplex Trading, LLC

$195 Billion
Q3 2025

A detailed history of Simplex Trading, LLC transactions in Mereo Biopharma Group PLC stock. As of the latest transaction made, Simplex Trading, LLC holds 196,269 shares of MREO stock, worth $357,209. This represents 0.0% of its overall portfolio holdings.

Number of Shares

196,269

Previous 201,141 2.42%

Holding current value

$357,209

Previous $545,000 25.87%

% of portfolio

0.0%

Previous 0.0%

15 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	SELL	$1.52 - $2.94 $7,405 - $14,323	-4,872 Reduced 2.42%	196,269 $404,000
Q2 2025 Aug 05, 2025	BUY	$1.76 - $2.87 $346,762 - $565,458	197,024 Added 4785.62%	201,141 $545,000
Q1 2025 May 12, 2025	SELL	$2.25 - $3.76 $114,709 - $191,692	-50,982 Reduced 92.53%	4,117 $9,000
Q4 2024 Feb 11, 2025	BUY	$3.29 - $4.62 $69,892 - $98,147	21,244 Added 62.75%	55,099 $192,000
Q3 2024 Nov 08, 2024	SELL	$3.45 - $4.87 $26,006 - $36,710	-7,538 Reduced 18.21%	33,855 $139,000
Q2 2024 Jul 25, 2024	BUY	$2.58 - $4.25 $31,349 - $51,641	12,151 Added 41.55%	41,393 $149,000
Q1 2024 Apr 25, 2024	BUY	$2.3 - $4.05 $67,256 - $118,430	29,242 New	29,242 $96,000
Q4 2022 Feb 02, 2023	BUY	$0.5 - $1.01 $2,164 - $4,371	4,328 Added 232.44%	6,190 $4,000
Q3 2022 Nov 04, 2022	SELL	$0.82 - $1.73 $56,681 - $119,584	-69,124 Reduced 97.38%	1,862 $1,000
Q2 2022 Aug 03, 2022	BUY	$0.33 - $1.69 $23,092 - $118,261	69,977 Added 6935.28%	70,986 $79,000
Q1 2022 May 02, 2022	SELL	$1.04 - $1.7 $114,476 - $187,125	-110,074 Reduced 99.09%	1,009 $1,000
Q4 2021 Feb 23, 2022	BUY	$1.51 - $2.59 $150,501 - $258,145	99,670 Added 873.3%	111,083 $177,000
Q3 2021 Oct 28, 2021	SELL	$2.2 - $3.17 $11,268 - $16,236	-5,122 Reduced 30.98%	11,413 $35,000
Q2 2021 Aug 12, 2021	BUY	$2.94 - $4.08 $26,918 - $37,356	9,156 Added 124.08%	16,535 $52,000
Q1 2021 Apr 26, 2021	BUY	$2.6 - $4.43 $19,185 - $32,688	7,379 New	7,379 $24,000

Others Institutions Holding MREO

# of Institutions

Shares Held

99.9M

Call Options Held

2.23M

Put Options Held

179K

View Full List

About Mereo Biopharma Group plc

Ticker MREO
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 124,986,000
Market Cap $227M
Description
Mereo BioPharma Group plc, a biopharmaceutical company, develops and commercializes therapeutics for the treatment of oncology and rare diseases in the United Kingdom and internationally. Its lead product candidate, etigilimab (OMP-313M32), an antibody T-cell immunoreceptor with Ig and ITIM domains, which is in Phase 1b clinical trial for the tr...

More about MREO

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Simplex Trading, LLC Mereo Biopharma Group PLC Transaction History