AMARIN CORP PLCUK - 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 CORP PLCUK - Ordinary Shares, par value 50 pence per share used to aggregate holder disclosures.

Q: How many institutions held AMRN - AMARIN CORP PLCUK - Ordinary Shares, par value 50 pence per share in Q1 2020?

274 institutional investors reported AMRN - AMARIN CORP PLCUK - Ordinary Shares, par value 50 pence per share for Q1 2020. Use the holders table for investor-level position and value details.

CUSIP: 023111206

Q1 2020 13F Holders as of 31 Mar 2020

Security type / class: Equity / Ordinary Shares, par value 50 pence per share
Total 13F shares: 167,452,478
Total 13F value: $669,816,111
Share change: +5,235,566
Put/Call ratio: 62%
SEC-reported price per share: $4.00
Number of holders: 274
Value change: -$323,465,907
Number of buys: 153
Number of sells: 138
Shares outstanding: 414,232,673

Security key

023111206

Report period

Q1 2020

Institutions

274

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:

Q1 2026

Ownership snapshot

Top reported holders of AMRN - AMARIN CORP PLCUK - 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

BAKER BROS. ADVISORS LP

Disclosed value leader

BAKER BROS. ADVISORS LP

Comparable rows

15/15

Latest evidence

31 Dec 2019

13F Lead comparable stake: 8.3% Showing 1-6 of 15 holder rows.

Quick read

BAKER BROS. ADVISORS LP leads the comparable SEC ownership view at 8.3%.

15 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 BAKER BROS. ADVISORS LP's linked filing trail.

Comparable ownership Top 5

BAKER BROS. ADVISORS LP 8.3%

Artisan Partners Limited Partnership 3.9%

PRICE T ROWE ASSOCIATES INC /MD/ 1.7%

PERCEPTIVE ADVISORS LLC 1.7%

MORGAN STANLEY 1.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

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

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BAKER BROS. ADVISORS LP	13F Company 13F	8.3%	$739,609,000 34,496,685 shares	—	31 Dec 2019
Artisan Partners Limited Partnership	13F Company 13F	3.9%	$344,228,000 16,055,421 shares	—	31 Dec 2019
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	1.7%	$155,077,000 7,233,061 shares	—	31 Dec 2019
PERCEPTIVE ADVISORS LLC	13F Company 13F	1.7%	$152,355,000 7,106,079 shares	—	31 Dec 2019
MORGAN STANLEY	13F Company 13F	1.3%	$117,644,000 5,487,099 shares	—	31 Dec 2019
ORACLE INVESTMENT MANAGEMENT INC	13F Company 13F	1.3%	$112,046,000 5,226,005 shares	—	31 Dec 2019

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 2020

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

Institutions

274

167,452,478

Rows available

274

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 2020 vs Q1 2020 Across Filers

Q1 2020 holders

274

Q1 2020 holders

274

Holder diff

Investor	Q1 2020 Shares	Q1 2020 Shares	Share Diff	Share Chg %	Q1 2020 value	Q1 2020 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend