ARCA biopharma, Inc.
Hedge Funds Holdings

Last updated:

ARCA biopharma, Inc.‘s stocks are currently a part of 15 hedge funds’ portfolios, which represents 8.06% of the total amount of its stocks outstanding. This makes up a total of 1.16M shares of ARCA biopharma, Inc.. Compared to the previous quarter, the number fell by -55.56% or -1.45M shares fewer. As for the holding position changes, 33.33% (5) of current hedge fund investors increased the number of shares held, 13.33% (2) of current holders sold a part of the shares held. 4 hedge funds are new holders of ARCA biopharma, Inc. stock in Q1 2023, it is 26.67% of total holders.

Hedge funds holding ARCA biopharma (Q2 2018 – Q1 2023)

Number of hedge funds
Q2 2018 13
Q3 2018 10
Q4 2018 10
Q1 2019 11
Q2 2019 8
Q3 2019 7
Q4 2019 7
Q1 2020 5
Q2 2020 3
Q3 2020 9
Q4 2020 15
Q1 2021 14
Q2 2021 12
Q3 2021 15
Q4 2021 15
Q1 2022 18
Q2 2022 20
Q3 2022 21
Q4 2022 20
Q1 2023 15

Hedge funds changes in ARCA biopharma positions (Q2 2018 – Q1 2023)

Changes in positions
Q2 2018 41242
Q3 2018 04132
Q4 2018 12214
Q1 2019 32123
Q2 2019 80011-11
Q3 2019 21130
Q4 2019 31030
Q1 2020 1213-2
Q2 2020 0032-2
Q3 2020 70110
Q4 2020 10304-2
Q1 2021 4625-3
Q2 2021 4426-4
Q3 2021 6523-1
Q4 2021 34332
Q1 2022 54423
Q2 2022 75350
Q3 2022 45534
Q4 2022 56360
Q1 2023 45204

Hedge funds changes in ARCA biopharma stock options (Q2 2018 – Q1 2023)

Changes in stock options
Q2 2018 0 0
Q3 2018 0 0
Q4 2018 0 0
Q1 2019 0 0
Q2 2019 0 0
Q3 2019 0 0
Q4 2019 0 0
Q1 2020 0 0
Q2 2020 0 0
Q3 2020 0 0
Q4 2020 23,000 50,000
Q1 2021 271,000 140,000
Q2 2021 27,000 331,000
Q3 2021 18,000 419,000
Q4 2021 169,000 147,000
Q1 2022 223,000 141,000
Q2 2022 328,000 3,957,000
Q3 2022 196,000 3,124,000
Q4 2022 165,200 130,788
Q1 2023 30,000 45,784,000

Top 50 hedge fund holders of ARCA biopharma, Inc. (NASDAQ:ABIO)

Hedge fund Value Shares owned Portfolio share
SUSQUEHANNA INTERNATIONAL GROUP, LLP 1.76M 856.3K 0.001%
GROUP ONE TRADING, L.P. 1.10M 536.3K 0.002%
NEWTYN MANAGEMENT, LLC 1.03M 500K 0.226%
VANGUARD GROUP INC 946K 459.17K 0.000%
SUSQUEHANNA INTERNATIONAL GROUP, LLP 647K 314.21K 0.000%
BLACKROCK INC. Larry Fink 542K 263.42K 0.000%
GEODE CAPITAL MANAGEMENT, LLC 321K 155.87K 0.000%
GROUP ONE TRADING, L.P. 297K 144.28K 0.001%
SG3 MANAGEMENT, LLC 206K 100K 0.028%
SUSQUEHANNA INTERNATIONAL GROUP, LLP 177K 85.9K 0.000%
STATE STREET CORP 148K 71.63K 0.000%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 97K 46.94K 0.003%
DIMENSIONAL FUND ADVISORS LP 88K 42.49K 0.000%
SG3 MANAGEMENT, LLC 78K 37.70K 0.011%
MILLENNIUM MANAGEMENT LLC Israel Englander 77K 37.25K 0.000%
RENAISSANCE TECHNOLOGIES LLC Jim Simons 69K 33.5K 0.000%
TEKLA CAPITAL MANAGEMENT LLC 67K 32.46K 0.003%
CITADEL ADVISORS LLC Ken Griffin 62K 29.91K 0.000%
MARQUETTE ASSET MANAGEMENT, LLC 36K 17.31K 0.011%
NORTHERN TRUST CORP 36K 17.51K 0.000%
CITADEL ADVISORS LLC Ken Griffin 35K 16.9K 0.000%
VIRTU FINANCIAL LLC 29K 14.22K 0.003%
SIMPLEX TRADING, LLC 14K 7.1K 0.000%
GROUP ONE TRADING, L.P. 14K 6.8K 0.000%
UBS GROUP AG 5K 2.61K 0.000%
SIMPLEX TRADING, LLC 5K 2.8K 0.000%
PARALLEL ADVISORS, LLC 1K 244 0.000%
TOWER RESEARCH CAPITAL LLC (TRC) 1K 522 0.000%
SIMPLEX TRADING, LLC 1K 517 0.000%
BAILARD, INC. 0 0 0.000%
MURCHINSON LTD. 0 0 0.000%
TWO SIGMA SECURITIES, LLC 0 0 0.000%