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13-F holdings, Q2 2026

Armistice Capital, LLC

A 13-F is the report large US investment managers file with the SEC each quarter, listing the stocks they held at quarter end.

Reported value
$8.2B
Positions
323
Filed
Data as of

These holdings are as of , 136 days ago.

13-Fs for Q3 2026 are due by .

See this manager's Holder IQ and how the book overlaps yours

Free to start, with no card. Holder IQ scores a manager's past record. It describes the past and is not a recommendation to buy or sell anything. Sign up and you can follow this manager: one notice for each new 13-F, naming what changed and which of those positions you hold or watch.

Top holdings

  1. MDGL$154.6M
    288,000 shares1.9% of the book
  2. SUPN$123.1M
    2,646,201 shares1.5% of the book
  3. CYTK$102.3M
    1,201,342 shares1.3% of the book
  4. INCY$102M
    900,005 shares1.2% of the book
  5. NBIX$90.3M
    535,838 shares1.1% of the book
  6. TVTX$89.3M
    1,572,539 shares1.1% of the book
  7. AGIO$89.1M
    2,400,000 shares1.1% of the book
  8. PTCT$87.4M
    1,071,395 shares1.1% of the book
  9. UNH$76.1M
    183,000 shares0.93% of the book
  10. FRPT$74.5M
    1,260,702 shares0.91% of the book

What changed this quarter

167 new positions and 95 sold out, against Q1 2026. Added and trimmed positions use the change in split-adjusted shares at the Q2 2026 implied price; full exits use their Q1 2026 reported value, not sale proceeds.

Largest buys

  • CYTK

    CYTOKINETICS INC

    +$37.2M

    +57.1% shares

    Your stake and evidence for CYTK

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares increased between Q1 2026 and Q2 2026.

    Displayed change: +$37.2M. The current book reports 1,201,342 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    1,201,342 current shares − 764,538 prior shares on the same basis = +436,804 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: 37211332.76727193 USD. Current reported shares: 1201342. Prior shares on current basis: 764538.

  • SUPN

    SUPERNUS PHARMACEUTICALS

    +$34.9M

    +39.6% shares

    Your stake and evidence for SUPN

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares increased between Q1 2026 and Q2 2026.

    Displayed change: +$34.9M. The current book reports 2,646,201 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    2,646,201 current shares − 1,895,347 prior shares on the same basis = +750,854 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: 34922219.679036476 USD. Current reported shares: 2646201. Prior shares on current basis: 1895347.

  • REGN

    REGENERON PHARMACEUTICALS

    +$33.5M

    +148.6% shares

    Your stake and evidence for REGN

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares increased between Q1 2026 and Q2 2026.

    Displayed change: +$33.5M. The current book reports 89,809 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    89,809 current shares − 36,126 prior shares on the same basis = +53,683 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: 33473497.903684482 USD. Current reported shares: 89809. Prior shares on current basis: 36126.

  • SNY

    SANOFI SA

    +$32.6M

    +254.7% shares

    Your stake and evidence for SNY

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares increased between Q1 2026 and Q2 2026.

    Displayed change: +$32.6M. The current book reports 1,064,000 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    1,064,000 current shares − 300,000 prior shares on the same basis = +764,000 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: 32592239.999999996 USD. Current reported shares: 1064000. Prior shares on current basis: 300000.

  • WAT

    WATERS CORP

    +$28.1M

    New

    Your stake and evidence for WAT

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    A position newly appears in the Q2 2026 book.

    Displayed change: +$28.1M. The current book reports 75,004 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: 28129500 USD. Current reported shares: 75004. Prior shares on current basis: not recorded.

Largest sells

  • TVTX

    TRAVERE THERAPEUTICS INC

    −$188.9M

    -67.9% shares

    Your stake and evidence for TVTX

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares decreased between Q1 2026 and Q2 2026.

    Displayed change: −$188.9M. The current book reports 1,572,539 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    1,572,539 current shares − 4,897,417 prior shares on the same basis = -3,324,878 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: -188886320.04687834 USD. Current reported shares: 1572539. Prior shares on current basis: 4897417.

  • PTCT

    PTC THERAPEUTICS INC

    −$81.8M

    -48.4% shares

    Your stake and evidence for PTCT

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares decreased between Q1 2026 and Q2 2026.

    Displayed change: −$81.8M. The current book reports 1,071,395 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    1,071,395 current shares − 2,074,449 prior shares on the same basis = -1,003,054 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: -81819114.63956805 USD. Current reported shares: 1071395. Prior shares on current basis: 2074449.

  • IMVT

    IMMUNOVANT INC

    −$70.5M

    -51.3% shares

    Your stake and evidence for IMVT

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares decreased between Q1 2026 and Q2 2026.

    Displayed change: −$70.5M. The current book reports 1,736,000 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    1,736,000 current shares − 3,564,916 prior shares on the same basis = -1,828,916 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: -70468133.48 USD. Current reported shares: 1736000. Prior shares on current basis: 3564916.

  • DDOG

    DATADOG INC

    −$44.5M

    -81.9% shares

    Your stake and evidence for DDOG

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares decreased between Q1 2026 and Q2 2026.

    Displayed change: −$44.5M. The current book reports 37,679 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    37,679 current shares − 208,564 prior shares on the same basis = -170,885 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: -44491616.60447464 USD. Current reported shares: 37679. Prior shares on current basis: 208564.

  • NBIX

    NEUROCRINE BIOSCIENCES INC

    −$31.7M

    -26% shares

    Your stake and evidence for NBIX

    What it means for you

    This public view does not read your holdings or watchlist; open the member view to check your stake.

    Use this to decide what to research, rather than as an instruction to copy a trade.

    What happened

    Reported shares decreased between Q1 2026 and Q2 2026.

    Displayed change: −$31.7M. The current book reports 535,838 shares.

    Why it can matter

    A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.

    How we got this

    For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.

    535,838 current shares − 724,000 prior shares on the same basis = -188,162 shares.

    Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.

    Where the data comes from

    SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.

    Current source filed .

    Read source filing

    Source filing on SEC.gov

    Technical details

    Reported dollar change: -31711882.55411897 USD. Current reported shares: 535838. Prior shares on current basis: 724000.

What was sold out, by size

  • 10 real positions, 0.25% of the book or more
  • 31 small, between 0.015% and 0.25%
  • 54 slivers under 0.015%, often rounding or client flows

Not counted as trades: XOP (new CUSIP), BIODEXA PHARMACEUTICALS PLC (new CUSIP).

All of this comes from the filer's public SEC filings. A 13-F shows long positions in US-listed securities at quarter end and can leave out short positions, cash and non-US holdings, so it is not the whole portfolio. This is filing data, not investment advice.