What does CUSIP 00211Y407 represent in this 13F holders report?

CUSIP 00211Y407 is the security identifier for ABIO - ARCA BIOPHARMA INC - COM PAR$.001 used to aggregate holder disclosures.

How many institutions held ABIO - ARCA BIOPHARMA INC - COM PAR$.001 in Q1 2019?

10 institutional investors reported ABIO - ARCA BIOPHARMA INC - COM PAR$.001 for Q1 2019. Use the holders table for investor-level position and value details.

ARCA BIOPHARMA INC - COM PAR$.001 (ABIO)

CUSIP: 00211Y407

Q1 2019 13F Holders as of 31 Mar 2019

Security type / class: Equity / COM PAR$.001
Total 13F shares: 2,305,719
Total 13F value: $862,000
Share change: +232,608
SEC-reported price per share: $0.37
Number of holders: 10
Value change: +$90,610
Number of buys: 5
Number of sells: 2

Security key

00211Y407

Report period

Q1 2019

Institutions

Top holders

ABIO full security history Ownership snapshot Full 13F holder table Oruka Therapeutics, Inc. SEC filings Oruka Therapeutics, Inc. company facts

Broader feeds

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Ownership snapshot

Top reported holders of ABIO - ARCA BIOPHARMA INC - COM PAR$.001 (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

RENAISSANCE TECHNOLOGIES LLC

Disclosed value leader

RENAISSANCE TECHNOLOGIES LLC

Comparable rows

0/10

Latest evidence

31 Dec 2018

13F Highest disclosed value: $273,000 10 rows are not safely comparable across share classes. Showing 1-6 of 10 holder rows.

Quick read

RENAISSANCE TECHNOLOGIES LLC has the largest disclosed position value at $273K.

0 of 10 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens RENAISSANCE TECHNOLOGIES LLC's linked filing trail.

Disclosed position value Top 5

RENAISSANCE TECHNOLOGIES LLC $273K

Tekla Capital Management LLC $271K

ACADIAN ASSET MANAGEMENT LLC $51K

Aveo Capital Partners, LLC $31K

PANAGORA ASSET MANAGEMENT INC $28K

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 10 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	— denominator unverified	$273,000 818,533 shares	—	31 Dec 2018
Tekla Capital Management LLC	13F Company 13F	— denominator unverified	$271,000 811,227 shares	—	31 Dec 2018
ACADIAN ASSET MANAGEMENT LLC	13F Company 13F	— denominator unverified	$51,000 153,498 shares	—	31 Dec 2018
Aveo Capital Partners, LLC	13F Company 13F	— denominator unverified	$31,000 93,258 shares	—	31 Dec 2018
PANAGORA ASSET MANAGEMENT INC	13F Company 13F	— denominator unverified	$28,000 83,376 shares	—	31 Dec 2018
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$17,000 50,481 shares	—	31 Dec 2018

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

2,305,719

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2019 vs Q1 2019 Across Filers

Q1 2019 holders

Holder diff

Investor	Q1 2019 Shares	Q1 2019 Shares	Share Diff	Share Chg %	Q1 2019 value	Q1 2019 value	Value change	Value Chg %