13-F holdings, Q2 2026
Decagon Asset Management LLP
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
- $524.7M
- Positions
- 101
- Filed
- Data as of
These holdings are as of , 136 days ago.
13-Fs for Q3 2026 are due by .
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Top holdings
- NSC$58M184,363 shares11.1% of the book
- ROKU$54.4M393,636 shares10.4% of the book
- PEN$44.8M142,001 shares8.5% of the book
- SEM$44.8M2,715,536 shares8.5% of the book
- TECH$39.9M564,664 shares7.6% of the book
- CUB$16.2M1,500,000 shares3.1% of the book
- VACI$13.6M1,330,620 shares2.6% of the book
- OACC$11.7M1,091,327 shares2.2% of the book
- HLXC$11.1M1,044,766 shares2.1% of the book
- ATII$10.1M937,829 shares1.9% of the book
What changed this quarter
27 new positions and 18 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
- ROKU
ROKU INC
+$54.4M
New
Your stake and evidence for ROKU
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: +$54.4M. The current book reports 393,636 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 .
Technical details
Reported dollar change: 54376878 USD. Current reported shares: 393636. Prior shares on current basis: not recorded.
- SEM
SELECT MED HLDGS CORP
+$44.8M
New
Your stake and evidence for SEM
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: +$44.8M. The current book reports 2,715,536 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 .
Technical details
Reported dollar change: 44833499 USD. Current reported shares: 2715536. Prior shares on current basis: not recorded.
- TECH
BIO-TECHNE CORP
+$39.9M
New
Your stake and evidence for TECH
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: +$39.9M. The current book reports 564,664 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 .
Technical details
Reported dollar change: 39893512 USD. Current reported shares: 564664. Prior shares on current basis: not recorded.
- CUB
LIONHEART HOLDINGS
+$16.2M
New
Your stake and evidence for CUB
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: +$16.2M. The current book reports 1,500,000 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
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 .
Technical details
Reported dollar change: 16155000 USD. Current reported shares: 1500000. Prior shares on current basis: not recorded.
- VACI
VIKING ACQUISITION CORP I
+$13.6M
New
Your stake and evidence for VACI
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: +$13.6M. The current book reports 1,330,620 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 .
Technical details
Reported dollar change: 13598937 USD. Current reported shares: 1330620. Prior shares on current basis: not recorded.
Largest sells
- EA
ELECTRONIC ARTS INC
−$27.2M
Sold out, was 7.1% of the book
Your stake and evidence for EA
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
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$27.2M. This was 7.1% of the prior book.
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 full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
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 .
Technical details
Reported dollar change: -27229000 USD. Current reported shares: not recorded. Prior shares on current basis: 133559.
- CWAN
CLEARWATER ANALYTICS HLDGS I
−$26.9M
Sold out, was 7% of the book
Your stake and evidence for CWAN
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
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$26.9M. This was 7% of the prior book.
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 full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
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 .
Technical details
Reported dollar change: -26941000 USD. Current reported shares: not recorded. Prior shares on current basis: 1139167.
- HOLX
HOLOGIC INC
−$20.8M
Sold out, was 5.4% of the book
Your stake and evidence for HOLX
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
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$20.8M. This was 5.4% of the prior book.
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 full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
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 .
Technical details
Reported dollar change: -20787000 USD. Current reported shares: not recorded. Prior shares on current basis: 275000.
- MCW
MISTER CAR WASH INC
−$20.4M
Sold out, was 5.3% of the book
Your stake and evidence for MCW
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
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$20.4M. This was 5.3% of the prior book.
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 full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
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 .
Technical details
Reported dollar change: -20385000 USD. Current reported shares: not recorded. Prior shares on current basis: 2924720.
- MBC
MASTERBRAND INC
−$12.9M
Sold out, was 3.3% of the book
Your stake and evidence for MBC
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
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$12.9M. This was 3.3% of the prior book.
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 full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
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 .
Technical details
Reported dollar change: -12856000 USD. Current reported shares: not recorded. Prior shares on current basis: 1546997.
What was sold out, by size
- 16 real positions, 0.25% of the book or more
- 2 slivers under 0.015%, often rounding or client flows
Not counted as trades: QUANTUM LEAP ACQUISITION COR (newly listed or spun off), GLED (newly listed or spun off), BHAV (newly listed or spun off), QRED (newly listed or spun off), JAB ACQUISITION CORP I (newly listed or spun off).
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.