BioCryst Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US09058V1035

SecurityBCRX / BioCryst Pharmaceuticals, Inc.
InstitutionCaption Management, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Caption Management, LLC ownership in BCRX / BioCryst Pharmaceuticals, Inc.

On May 15, 2025 - Caption Management, LLC filed a 13F-HR form disclosing ownership of 0 shares of BioCryst Pharmaceuticals, Inc. (US:BCRX) valued at $0 USD as of March 31, 2025. The entity filed a previous 13F-HR on February 14, 2025 disclosing 62,789 shares of BioCryst Pharmaceuticals, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Caption Management, LLC has a history of taking positions in derivatives of the underlying security (BCRX) 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.

BCRX / BioCryst Pharmaceuticals, 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)
2025-05-15 2025-03-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 0 -62,789 -100.00 0 -100.00
2025-02-14 2024-12-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 62,789 42,789 213.94 472 210.53 0.0045
2024-11-14 2024-09-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 20,000 20,000 152 0.0024
2024-08-14 2024-06-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 0 -60,000 -100.00 0 -100.00
2024-05-15 2024-03-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 60,000 60,000 305 0.0046
2023-08-14 2023-06-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 0 -16,300 -100.00 0 -100.00
2023-05-15 2023-03-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 16,300 -39,500 -70.79 136 -78.91 0.0026
2023-02-14 2022-12-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 55,800 -94,700 -62.92 641 -66.24 0.0100
2022-11-14 2022-09-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 150,500 30,500 25.42 1,896 49.29 0.0262
2022-08-15 2022-06-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 120,000 -120,000 -50.00 1,270 -67.47 0.0175
2022-05-13 2022-03-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 240,000 110,500 85.33 3,904 117.74 0.0470
2022-02-11 2021-12-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 129,500 -34,100 -20.84 1,793 -23.73 0.0201
2021-11-12 2021-09-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 163,600 -341,400 -67.60 2,351 -70.55 0.0269
2021-08-16 2021-06-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 505,000 505,000 7,984 0.1042
2019-11-14 2019-09-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 0 -4,400 -100.00 0 -100.00
2019-08-13 2019-06-30 13F BIOCRYST PHARMACEUTICALS COM 09058V103 4,400 -20,600 -82.40 16 -92.12 0.0008
2019-05-14 2019-03-31 13F BIOCRYST PHARMACEUTICALS COM 09058V103 25,000 25,000 203 0.0112
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
(%)
2026-05-15 2026-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 0 -100.00 0 n/a n/a n/a
2026-02-17 2025-12-31 13F BIOCRYST PHARMACEUTICALS COM Call 50,000 3.73 390 6.85 n/a n/a n/a
2025-11-14 2025-09-30 13F BIOCRYST PHARMACEUTICALS COM Call 48,200 141.00 366 103.91 n/a n/a n/a
2025-08-14 2025-06-30 13F BIOCRYST PHARMACEUTICALS COM Call 20,000 179 n/a n/a n/a
2025-05-15 2025-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F BIOCRYST PHARMACEUTICALS COM Call 296,500 2,230 n/a n/a n/a
2024-11-14 2024-09-30 13F BIOCRYST PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F BIOCRYST PHARMACEUTICALS COM Call 72,100 44.20 446 75.20 n/a n/a n/a
2024-05-15 2024-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 50,000 0.00 254 -15.05 n/a n/a n/a
2024-02-14 2023-12-31 13F BIOCRYST PHARMACEUTICALS COM Call 50,000 -20.00 300 -32.35 n/a n/a n/a
2023-11-14 2023-09-30 13F BIOCRYST PHARMACEUTICALS COM Call 62,500 442 n/a n/a n/a
2023-08-14 2023-06-30 13F BIOCRYST PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 40,000 -50.00 334 -63.73 n/a n/a n/a
2023-02-14 2022-12-31 13F BIOCRYST PHARMACEUTICALS COM Call 80,000 14.29 918 4.20 n/a n/a n/a
2022-11-14 2022-09-30 13F BIOCRYST PHARMACEUTICALS COM Call 70,000 0.00 881 18.89 n/a n/a n/a
2022-08-15 2022-06-30 13F BIOCRYST PHARMACEUTICALS COM Call 70,000 -20.00 741 -47.89 n/a n/a n/a
2022-05-13 2022-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 87,500 59.09 1,422 86.13 n/a n/a n/a
2022-02-11 2021-12-31 13F BIOCRYST PHARMACEUTICALS COM Call 55,000 -83.33 764 -83.89 n/a n/a n/a
2021-11-12 2021-09-30 13F BIOCRYST PHARMACEUTICALS COM Call 330,000 -21.58 4,742 -28.76 n/a n/a n/a
2021-08-16 2021-06-30 13F BIOCRYST PHARMACEUTICALS COM Call 420,800 68.32 6,656 161.84 n/a n/a n/a
2021-05-17 2021-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 250,000 -40.59 2,542 -61.81 n/a n/a n/a
2020-05-14 2020-03-31 13F BIOCRYST PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F BIOCRYST PHARMACEUTICALS COM Call 368,700 1,273 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
(%)
2026-05-15 2026-03-31 13F BIOCRYST PHARMACEUTICALS COM Put 0 -100.00 0 n/a n/a n/a
2026-02-17 2025-12-31 13F BIOCRYST PHARMACEUTICALS COM Put 50,000 390 n/a n/a n/a
2025-11-14 2025-09-30 13F BIOCRYST PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F BIOCRYST PHARMACEUTICALS COM Put 20,000 179 n/a n/a n/a
2025-05-15 2025-03-31 13F BIOCRYST PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F BIOCRYST PHARMACEUTICALS COM Put 296,500 2,230 n/a n/a n/a
2024-11-14 2024-09-30 13F BIOCRYST PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F BIOCRYST PHARMACEUTICALS COM Put 72,100 44.20 446 75.20 n/a n/a n/a
2024-05-15 2024-03-31 13F BIOCRYST PHARMACEUTICALS COM Put 50,000 0.00 254 -15.05 n/a n/a n/a
2024-02-14 2023-12-31 13F BIOCRYST PHARMACEUTICALS COM Put 50,000 300 n/a n/a n/a
2023-08-14 2023-06-30 13F BIOCRYST PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F BIOCRYST PHARMACEUTICALS COM Put 40,000 -74.33 334 -81.38 n/a n/a n/a
2023-02-14 2022-12-31 13F BIOCRYST PHARMACEUTICALS COM Put 155,800 119.13 1,789 99.78 n/a n/a n/a
2022-11-14 2022-09-30 13F BIOCRYST PHARMACEUTICALS COM Put 71,100 -88.26 895 -86.03 n/a n/a n/a
2022-08-15 2022-06-30 13F BIOCRYST PHARMACEUTICALS COM Put 605,700 24.25 6,408 -19.14 n/a n/a n/a
2022-05-13 2022-03-31 13F BIOCRYST PHARMACEUTICALS COM Put 487,500 80.56 7,925 111.84 n/a n/a n/a
2022-02-11 2021-12-31 13F BIOCRYST PHARMACEUTICALS COM Put 270,000 -31.65 3,741 -34.09 n/a n/a n/a
2021-11-12 2021-09-30 13F BIOCRYST PHARMACEUTICALS COM Put 395,000 -55.37 5,676 -59.44 n/a n/a n/a
2021-08-16 2021-06-30 13F BIOCRYST PHARMACEUTICALS COM Put 885,000 831.58 13,994 1,348.65 n/a n/a n/a
2021-05-17 2021-03-31 13F BIOCRYST PHARMACEUTICALS COM Put 95,000 -89.27 966 -93.10 n/a n/a n/a
2019-11-14 2019-09-30 13F BIOCRYST PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-13 2019-06-30 13F BIOCRYST PHARMACEUTICALS COM Put 20,000 76 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.