Amicus Therapeutics, Inc.
US ˙ NasdaqGM ˙ US03152W1099
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityFOLD / Amicus Therapeutics, Inc.
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership28,472 shares
Latest Disclosed Value $ 411,705
Boothbay Fund Management, Llc ownership in FOLD / Amicus Therapeutics, Inc.

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 28,472 shares of Amicus Therapeutics, Inc. (US:FOLD) valued at $411,705 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 233,657 shares of Amicus Therapeutics, Inc.. This represents a change in shares of -87.81% during the quarter. The current value of the position is $412,559 USD.

Boothbay Fund Management, Llc has a history of taking positions in derivatives of the underlying security (FOLD) 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.

FOLD / Amicus Therapeutics, Inc. 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 AMICUS THERAPEUTIC COM 03152W109 28,472 -205,185 -87.81 412 -87.65 0.0053
2026-02-17 2025-12-31 13F AMICUS THERAPEUTICS COM 03152W109 233,657 233,657 3,327 0.0496
2025-02-14 2024-12-31 13F AMICUS THERAPEUTICS COM 03152W109 0 -24,857 -100.00 0 -100.00
2024-11-14 2024-09-30 13F AMICUS THERAPEUTICS COM 03152W109 24,857 24,857 265 0.0060
2023-02-14 2022-12-31 13F AMICUS THERAPEUTICS COM 03152W109 0 -13,553 -100.00 0 -100.00
2022-11-14 2022-09-30 13F AMICUS THERAPEUTICS COM 03152W109 13,553 13,553 141 0.0035
2022-05-16 2022-03-31 13F AMICUS THERAPEUTICS COM 03152W109 0 -16,530 -100.00 0 -100.00
2022-02-14 2021-12-31 13F AMICUS THERAPEUTICS COM 03152W109 16,530 -42,562 -72.03 191 -66.13 0.0045
2021-11-15 2021-09-30 13F AMICUS THERAPEUTICS COM 03152W109 59,092 304 0.52 564 -0.53 0.0156
2021-08-17 2021-06-30 13F/A-1 AMICUS THERAPEUTICS COM 03152W109 58,788 14,767 33.55 567 30.34 0.0182
2021-08-16 2021-06-30 13F AMICUS THERAPEUTICS COM 03152W109 58,788 14,767 567 0.0178
2021-05-17 2021-03-31 13F AMICUS THERAPEUTICS COM 03152W109 44,021 44,021 435 0.0163
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
(%)
2022-02-14 2021-12-31 13F AMICUS THERAPEUTICS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F AMICUS THERAPEUTICS COM Call 204,500 1,953 n/a n/a n/a
2018-02-14 2017-12-31 13F AMICUS THERAPEUTICS CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F AMICUS THERAPEUTICS CALL Call 653 985 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
(%)
2022-02-14 2021-12-31 13F AMICUS THERAPEUTICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F AMICUS THERAPEUTICS COM Put 214,500 2,048 n/a n/a n/a
2017-07-18 2016-06-30 13F/A AMICUS THERAPEUTICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-16 2016-03-31 13F AMICUS THERAPEUTICS COM Put 14,400 122 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.