Back to GROUP ONE TRADING LLC GROUP ONE TRADING LLC

MREOMREO
15 quarters

Position history for GROUP ONE TRADING LLCGROUP ONE TRADING LLC's holdings in MEREO BIOPHARMA GROUP PLC

Yes. Group One Trading holds 167,515 shares of MREO (Mereo Biopharma Group), worth $53,220, as of its Q2 2026 13F filing. It reduced the position by 168,312 shares (-50.1%) from Q1 2026. Group One Trading has held MREO since Q1 2025, across 6 quarterly 13F filings.

Current Value

$53,220

Current Shares

167,515

Total Value Change

+$17,220

Total Shares Change

+156,089

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
167,515
-50.1%
$53,2200.0%$0.32
0
2026-Q1
Decreased
335,827
-24.0%
$110,8230.0%$0.41
0
2025-Q4
Increased
441,636
+223.3%
$184,0300.0%$0.37
37
2025-Q3
Decreased
136,588
-2.1%
$281,3710.0%$1.96
0
2025-Q2
Increased
139,559
+307.1%
$378,2050.0%$2.66
38
2025-Q1
New
34,281
-
$77,1320.0%$2.30
29
2023-Q2
Exited
0
-100.0%
$00.0%$1.27
0
2023-Q1
Decreased
8,130
-82.0%
$5,7470.0%$0.71
0
2022-Q4
Decreased
45,074
-27.2%
$33,8060.0%$0.75
0
2022-Q3
Increased
61,888
+28.1%
$53,0000.0%$0.88
26
2022-Q2
Increased
48,301
+158.4%
$54,0000.0%$1.35
33
2022-Q1
Increased
18,694
+2.2%
$21,0000.0%$1.04
13
2021-Q4
Increased
18,294
+378.1%
$29,0000.0%$1.61
21
2021-Q3
Decreased
3,826
-66.5%
$9,0000.0%$2.40
0
2021-Q2
New
11,426
-
$36,0000.0%$3.07
30

Other major holders of MREO: Janus Henderson Group Ltd., ADAGE CAPITAL PARTNERS GP, L.L.C.

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