Amarin Corporation PLC/UK - Ordinary Shares, par value 50 pence per share (AMRN)

Q: What does CUSIP 023111206 represent in this 13F holders report?

CUSIP 023111206 is the security identifier for AMRN - Amarin Corporation PLC/UK - Ordinary Shares, par value 50 pence per share used to aggregate holder disclosures.

Q: How many institutions held AMRN - Amarin Corporation PLC/UK - Ordinary Shares, par value 50 pence per share in Q1 2023?

195 institutional investors reported AMRN - Amarin Corporation PLC/UK - Ordinary Shares, par value 50 pence per share for Q1 2023. Use the holders table for investor-level position and value details.

CUSIP: 023111206

Q1 2023 13F Holders as of 31 Mar 2023

Security type / class: Equity / Ordinary Shares, par value 50 pence per share
Total 13F shares: 99,079,623
Total 13F value: $148,584,261
Share change: -13,158,607
Put/Call ratio: 54%
SEC-reported price per share: $1.50
Number of holders: 195
Value change: -$17,751,654
Number of buys: 72
Number of sells: 69
Shares outstanding: 422,724,138

Security key

023111206

Report period

Q1 2023

Institutions

195

Top holders

AMRN full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2026 AMARIN CORP PLC\UK SEC filings AMARIN CORP PLC\UK company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 023111206

Newer quarter: Q1 2026

Recent filing periods:

Q2 2026 Q1 2026

Ownership snapshot

Top reported holders of AMRN - Amarin Corporation PLC/UK - Ordinary Shares, par value 50 pence per share (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

MORGAN STANLEY

Disclosed value leader

MORGAN STANLEY

Comparable rows

0/15

Latest evidence

31 Dec 2022

13F 3/4/5 Highest disclosed value: $26,653,753 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

MORGAN STANLEY has the largest disclosed position value at $26.65M.

0 of 15 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 MORGAN STANLEY's linked filing trail.

Disclosed position value Top 5

MORGAN STANLEY $26.65M

Woodline Partners LP $15.48M

Kynam Capital Management, LP $11.67M

MILLENNIUM MANAGEMENT LLC $8.38M

SCP Investment, LP $7.86M

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

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
MORGAN STANLEY	13F Company 13F	— denominator unverified	$26,653,753 22,027,895 shares	—	31 Dec 2022
Woodline Partners LP	13F Company 13F	— denominator unverified	$15,476,576 12,790,559 shares	—	31 Dec 2022
Kynam Capital Management, LP	13F Company 13F	— denominator unverified	$11,667,110 9,642,240 shares	—	31 Dec 2022
MILLENNIUM MANAGEMENT LLC	13F Company 13F	— denominator unverified	$8,378,000 6,923,801 shares	—	31 Dec 2022
SCP Investment, LP	13F Company 13F	— denominator unverified	$7,865,000 6,500,000 shares	—	31 Dec 2022
DG Capital Management, LLC	13F Company 13F	— denominator unverified	$7,029,437 5,809,452 shares	—	31 Dec 2022

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 2023

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

Institutions

195

99,079,623

Rows available

195

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 2023 vs Q1 2026 Across Filers

Q1 2026 holders

Q1 2023 holders

195

Holder diff

193

Investor	Q1 2026 Shares	Q1 2023 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend