Amarin Corporation plc - Depositary Receipt (Common Stock)
US ˙ NasdaqCM ˙ US0231112063

SecurityAMRN / Amarin Corporation plc - Depositary Receipt (Common Stock)
InstitutionEversept Partners, LP
Latest Disclosed Ownership147,715 shares
Latest Disclosed Value $ 2,135,959
Eversept Partners, LP ownership in AMRN / Amarin Corporation plc - Depositary Receipt (Common Stock)

On May 15, 2026 - Eversept Partners, LP filed a 13F-HR form disclosing ownership of 147,715 shares of Amarin Corporation plc - Depositary Receipt (Common Stock) (US:AMRN) valued at $2,135,959 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 172,188 shares of Amarin Corporation plc - Depositary Receipt (Common Stock). This represents a change in shares of -14.21% during the quarter. The current value of the position is $2,038,467 USD.

Eversept Partners, LP has a history of taking positions in derivatives of the underlying security (AMRN) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

AMRN / Amarin Corporation plc - Depositary Receipt (Common Stock) Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AMARIN CORP SPONSORED ADR 023111404 147,715 -24,473 -14.21 2,136 -11.12 0.1126
2026-02-17 2025-12-31 13F AMARIN CORP SPONSORED ADR 023111404 172,188 4,912 2.94 2,403 -12.30 0.1211
2025-11-14 2025-09-30 13F AMARIN CORP SPONSORED ADR 023111404 167,276 0 0.00 2,740 0.96 0.1888
2025-08-14 2025-06-30 13F AMARIN CORP SPONSORED ADR 023111404 167,276 -14,445,481 -98.86 2,713 -87.62 0.2496
2023-11-08 2023-03-31 13F/A-1 AMARIN CORP SPONS ADR NEW 023111906 14,612,757 11,328,643 344.95 21,919 451.70 1.5283
2023-05-15 2023-03-31 13F AMARIN CORP SPONS ADR NEW 023111906 14,612,757 11,328,643 21,919 1.9124
2023-11-08 2022-12-31 13F/A-1 AMARIN CORP SPONS ADR NEW 023111906 3,284,114 3,284,114 74,403.49 3,974 809.15 0.3481
2023-02-14 2022-12-31 13F AMARIN CORP SPONS ADR NEW 023111906 3,284,114 -8,678,630 3,974 0.3673
2023-11-08 2021-06-30 13F/A-1 AMARIN CORP CALL 023111906 0 -4,408 -100.00 0 -100.00
2021-05-13 2021-03-31 13F AMARIN CORP CALL 023111906 4,408 -8,446 -65.71 437 -7.22 0.0346
2021-02-16 2020-12-31 13F AMARIN CORP CALL 023111906 12,854 0 0.00 471 -6.55 0.0560
2020-11-13 2020-09-30 13F/A-1 AMARIN CORP CALL 023111906 12,854 2,051 18.99 504 -82.20 0.1134
2020-11-12 2020-09-30 13F AMARIN CORP CALL 023111906 10,803 0 2,831 457,055.9526
2023-11-08 2020-06-30 13F/A-1 AMARIN CORP PUT 023111956 0 -1,500 -100.00 0 -100.00
2020-08-13 2020-06-30 13F AMARIN CORP CALL 023111906 10,803 567 5.54 2,831 656.95 0.4571
2020-05-13 2020-03-31 13F AMARIN CORP PUT 023111956 1,500 1,500 537 0.1359
2020-05-13 2020-03-31 13F AMARIN CORP CALL 023111906 10,236 294 2.96 374 -97.30 0.0947
2020-02-13 2019-12-31 13F AMARIN CORP CALL 023111906 9,942 8,331 517.13 13,828 1,161.68 2.6786
2019-11-13 2019-09-30 13F AMARIN CORP CALL 023111906 1,611 1,611 1,096 0.3422
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-11-08 2021-06-30 13F/A AMARIN CORP CALL 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-13 2021-03-31 13F AMARIN CORP CALL 4,408 -65.71 437 -7.22 n/a n/a n/a
2021-02-16 2020-12-31 13F AMARIN CORP CALL 12,854 0.00 471 -6.55 n/a n/a n/a
2020-11-13 2020-09-30 13F/A AMARIN CORP CALL 12,854 18.99 504 -82.20 n/a n/a n/a
2020-11-12 2020-09-30 13F AMARIN CORP CALL 10,803 2,831 n/a n/a n/a
2020-08-13 2020-06-30 13F AMARIN CORP CALL 10,803 5.54 2,831 656.95 n/a n/a n/a
2020-05-13 2020-03-31 13F AMARIN CORP CALL 10,236 2.96 374 -97.30 n/a n/a n/a
2020-02-13 2019-12-31 13F AMARIN CORP CALL 9,942 517.13 13,828 1,161.68 n/a n/a n/a
2019-11-13 2019-09-30 13F AMARIN CORP CALL 1,611 1,096 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-11-08 2020-06-30 13F/A AMARIN CORP PUT 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-13 2020-03-31 13F AMARIN CORP PUT 1,500 537 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.