ARCA biopharma, Inc.

NasdaqCM:ABIO Stock Report

Market Cap: US$50.6m

This company is no longer active

The company may no longer be operating, as it may be out of business. Find out why through their latest events.

ARCA biopharma Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:ABIO Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
11 Sep 24BuyUS$6,325,000Fairmount Funds Management LLCCompany275,000US$23.00
16 Aug 24BuyUS$17,067Janus Henderson Group plcCompany484.83US$35.72
25 Jul 24BuyUS$699,165Janus Henderson Group plcCompany18,340.24US$38.40
11 Jul 24BuyUS$1,427,345Janus Henderson Group plcCompany34,064.74US$42.61
03 Apr 24BuyUS$4,047,578Adage Capital Management, L.P.Company99,999.96US$46.80

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of ABIO?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders187,1191.26%
VC/PE Firms866,3755.81%
Institutions5,187,74234.8%
Hedge Funds8,665,46858.1%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 102.52% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
27.6%
Cable Car Capital LLC
4,000,452US$14.0m0%17.15%
14.6%
Janus Henderson Group plc
2,117,213US$7.4m53.1%no data
9.65%
RTW Investments, LP
1,400,000US$4.9m0%0.08%
8.27%
Adage Capital Management, L.P.
1,200,000US$4.2m0%0.01%
7.34%
Allostery Investments LP
1,065,016US$3.7m0%no data
6.89%
Avidity Partners Management, L.P.
1,000,000US$3.5m0%0.15%
5.97%
VR Adviser, LLC
866,375US$3.0m0%0.15%
4.83%
Cowen Inc,Private Banking and Investment Banking Investments
700,000US$2.4m0%0.07%
4.48%
Morgan Stanley, Investment Banking and Brokerage Investments
650,000US$2.3m0%no data
3.13%
The Vanguard Group, Inc.
453,598US$1.6m0%no data
2.86%
Commodore Capital LP
414,325US$1.4m0%0.1%
1.71%
BlackRock, Inc.
247,909US$865.2k7.21%no data
1.11%
Geode Capital Management, LLC
161,735US$564.5k13.6%no data
0.58%
ADAR1 Capital Management, LLC
84,676US$295.5k0%0.06%
0.5%
Renaissance Technologies LLC
73,099US$255.1k11.3%no data
0.5%
Affinity Asset Advisors, LLC
72,484US$253.0k0%0.04%
0.41%
State Street Global Advisors, Inc.
59,707US$208.4k0%no data
0.35%
Christopher Ozeroff
50,970US$177.9k0%no data
0.34%
Robert Conway
50,000US$174.5k0%no data
0.29%
Dimensional Fund Advisors LP
42,502US$148.3k0%no data
0.28%
Thomas Keuer
40,730US$142.1k0%no data
0.28%
C. Dekker
40,000US$139.6k0%no data
0.22%
abrdn plc
32,461US$113.3k0%no data
0.19%
Point72 Asset Management, L.P.
27,779US$96.9k0%no data
0.14%
Northern Trust Global Investments
20,982US$73.2k0%no data