13-F holdings, Q2 2026
Sirios Capital Management L P
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
- $822.3M
- Positions
- 86
- 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
- GEV$97.8M83,279 shares11.9% of the book
- TSM$50.3M105,244 shares6.1% of the book
- AMZN$41.3M173,360 shares5% of the book
- GOOGL$37.2M103,975 shares4.5% of the book
- DXCM$28.3M420,418 shares3.4% of the book
- GMED$28.1M355,019 shares3.4% of the book
- WFC$26.5M321,253 shares3.2% of the book
- AMD$26.1M44,860 shares3.2% of the book
- HEI-A$20.8M80,503 shares2.5% of the book
- ONTO$19.9M52,585 shares2.4% of the book
What changed this quarter
14 new positions and 9 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
- SARO
STANDARDAERO INC
+$15.3M
New
Your stake and evidence for SARO
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: +$15.3M. The current book reports 512,390 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: 15325585 USD. Current reported shares: 512390. Prior shares on current basis: not recorded.
- NYT
NEW YORK TIMES CO MTN BE
+$10.3M
+454.3% shares
Your stake and evidence for NYT
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: +$10.3M. The current book reports 180,208 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.
180,208 current shares − 32,508 prior shares on the same basis = +147,700 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 .
Technical details
Reported dollar change: 10336046.131137352 USD. Current reported shares: 180208. Prior shares on current basis: 32508.
- NVDA
NVIDIA CORPORATION
+$9M
+108.7% shares
Your stake and evidence for NVDA
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: +$9M. The current book reports 86,282 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.
86,282 current shares − 41,336 prior shares on the same basis = +44,946 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 .
Technical details
Reported dollar change: 8993244.942050485 USD. Current reported shares: 86282. Prior shares on current basis: 41336.
- NFLX
NETFLIX INC.
+$8.6M
New
Your stake and evidence for NFLX
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: +$8.6M. The current book reports 121,116 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: 8647682 USD. Current reported shares: 121116. Prior shares on current basis: not recorded.
- EPAM
EPAM SYS INC
+$5.4M
+287.5% shares
Your stake and evidence for EPAM
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: +$5.4M. The current book reports 92,230 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.
92,230 current shares − 23,804 prior shares on the same basis = +68,426 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 .
Technical details
Reported dollar change: 5429603.470953053 USD. Current reported shares: 92230. Prior shares on current basis: 23804.
Largest sells
- GEV
GE VERNOVA INC
−$46.6M
-32.3% shares
Your stake and evidence for GEV
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: −$46.6M. The current book reports 83,279 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.
83,279 current shares − 122,929 prior shares on the same basis = -39,650 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 .
Technical details
Reported dollar change: -46583199.02856663 USD. Current reported shares: 83279. Prior shares on current basis: 122929.
- ONTO
ONTO INNOVATION INC
−$38.4M
-65.8% shares
Your stake and evidence for ONTO
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: −$38.4M. The current book reports 52,585 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.
52,585 current shares − 153,935 prior shares on the same basis = -101,350 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 .
Technical details
Reported dollar change: -38355907.01816107 USD. Current reported shares: 52585. Prior shares on current basis: 153935.
- AMD
ADVANCED MICRO DEVICES INC
−$22M
-45.8% shares
Your stake and evidence for AMD
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: −$22M. The current book reports 44,860 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.
44,860 current shares − 82,735 prior shares on the same basis = -37,875 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 .
Technical details
Reported dollar change: -22001966.587717343 USD. Current reported shares: 44860. Prior shares on current basis: 82735.
- CG
CARLYLE GROUP INC
−$21.3M
-93.2% shares
Your stake and evidence for CG
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: −$21.3M. The current book reports 37,123 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.
37,123 current shares − 542,251 prior shares on the same basis = -505,128 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 .
Technical details
Reported dollar change: -21270946.475230988 USD. Current reported shares: 37123. Prior shares on current basis: 542251.
- ALGM
ALLEGRO MICROSYSTEMS INC
−$19.1M
-92.1% shares
Your stake and evidence for ALGM
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: −$19.1M. The current book reports 23,438 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.
23,438 current shares − 298,421 prior shares on the same basis = -274,983 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 .
Technical details
Reported dollar change: -19144321.62223739 USD. Current reported shares: 23438. Prior shares on current basis: 298421.
What was sold out, by size
- 2 real positions, 0.25% of the book or more
- 7 small, between 0.015% and 0.25%
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.