GROUP ONE TRADING, L.P. - ARCA BIOPHARMA INC ownership

ARCA BIOPHARMA INC's ticker is ABIO and the CUSIP is 00211Y506. A total of 25 filers reported holding ARCA BIOPHARMA INC in Q2 2022. The put-call ratio across all filers is 8.52 and the average weighting 0.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of ARCA BIOPHARMA INC
ValueSharesWeighting
Q1 2023$45,770
-84.6%
23,000
-84.1%
0.00%
-100.0%
Q3 2022$297,000
-9.2%
144,284
+9.7%
0.00%0.0%
Q2 2022$327,000
+3987.5%
131,501
+5965.5%
0.00%
Q1 2021$8,0002,1680.00%
Other shareholders
ARCA BIOPHARMA INC shareholders Q2 2022
NameSharesValueWeighting ↓
SG3 Management, LLC 100,000$249,0000.03%
Murchinson Ltd. 50,593$126,0000.02%
Marquette Asset Management, LLC 17,318$43,0000.01%
SG3 Management, LLC 22,706$57,0000.01%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 46,948$117,0000.00%
Tekla Capital Management LLC 32,461$81,0000.00%
BAILARD, INC. 35,000$87,0000.00%
GROUP ONE TRADING, L.P. 131,501$327,0000.00%
TWO SIGMA SECURITIES, LLC 10,238$25,0000.00%
SUSQUEHANNA INTERNATIONAL GROUP, LLP 882,900$2,198,0000.00%
View complete list of ARCA BIOPHARMA INC shareholders