Sirios Capital Management L P holds a focused book of 86 reported positions worth $822.3M as of Q2 2026 (disclosed Aug 14, 2026, a ~45-day 13F lag). This quarter they opened Standardaero Inc and trimmed Ge Vernova Inc. Their largest long position is Ge Vernova Inc at 12% of the reported non-option book. Cloning the disclosed picks since 2025 would be +31% (+28.7%/yr). That is a simulation of the disclosed long book, not audited returns.
Following at the filing date actually beat the quarter-end book by 2.9 points over this window.
Growth of $10,000 cloning Sirios Capital Management L P's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~45 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
+3 sectors below the cut, 3% together
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Sirios Capital Management L P
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Ketron Financial | 13 / 80 | $270.6M |
| Integrated Financial Solutions, Inc. | 11 / 80 | $139.5M |
| Howard Hughes Medical Institute | 12 / 80 | $329.7M |
| Hoey Investments, Inc | 32 / 80 | $546.3M |
| Summa Corp. | 11 / 80 | $210.9M |
| Independent Investors Inc | 13 / 80 | $344.2M |
| Private Capital Advisors, Inc. | 11 / 80 | $749.1M |
| Skandinaviska Enskilda Banken AB (publ) | 17 / 80 | $1.7B |
Ranked by the share of each fund's own book sitting in the names it shares with Sirios Capital Management L P: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Ge Vernova Inc COM | $97.8M | 83.3K | 11.9% | ▼−32% Reduced · −40K sh | |
| 2 | Taiwan Semiconductor Manufac SPONSORED ADS | $50.3M | 105.2K | 6.1% | ▼−6.3% Reduced · −7K sh | |
| 3 | Amazon Com Inc COM | $41.3M | 173.4K | 5.0% | ▲+2.8% Added · +5K sh | |
| 4 | Alphabet Inc CAP STK CL A | $37.2M | 104.0K | 4.5% | ▼−1.9% Reduced · −2K sh | |
| 5 | Dexcom Inc COM | $28.3M | 420.4K | 3.4% | ▼−1.8% Reduced · −8K sh | |
| 6 | Globus Med Inc CL A | $28.1M | 355.0K | 3.4% | ▲+0.2% Added · +851 sh | |
| 7 | Wells Fargo & Co COM | $26.5M | 321.3K | 3.2% | ▼−1.2% Reduced · −4K sh | |
| 8 | Advanced Micro Devices Inc COM | $26.1M | 44.9K | 3.2% | ▼−46% Reduced · −38K sh | |
| 9 | Heico Corp New CL A | $20.8M | 80.5K | 2.5% | ▼−3.0% Reduced · −3K sh | |
| 10 | Onto Innovation Inc COM | $19.9M | 52.6K | 2.4% | ▼−66% Reduced · −101K sh | |
| 11 | Union Pac Corp COM | $17.6M | 64.5K | 2.1% | ▼−4.0% Reduced · −3K sh | |
| 12 | Clean Harbors Inc COM | $17.5M | 58.5K | 2.1% | ▲+2.3% Added · +1K sh | |
| 13 | Nvidia Corporation COM | $17.3M | 86.3K | 2.1% | ▲+109% Added · +45K sh | |
| 14 | Carrier Global Corporation COM | $15.9M | 217.1K | 1.9% | ▼−6.0% Reduced · −14K sh | |
| 15 | Standardaero Inc COM | $15.3M | 512.4K | 1.9% | ▲New New position | |
| 16 | Vistra Corp COM | $15.2M | 95.6K | 1.8% | ▼−1.3% Reduced · −1K sh | |
| 17 | Alcon AG (Nys) COM | $14.8M | 220.6K | 1.8% | ▲+0.8% Added · +2K sh | |
| 18 | Global PMTS Inc COM | $14.4M | 198.7K | 1.8% | ▼−1.2% Reduced · −2K sh | |
| 19 | Parker-Hannifin Corp COM | $14.4M | 14.7K | 1.7% | ▲+53% Added · +5K sh | |
| 20 | Old Dominion Freight Line In COM | $13.8M | 63.9K | 1.7% | ▼−22% Reduced · −18K sh | |
| 21 | Waste Connections Inc COM | $13.5M | 80.9K | 1.6% | ▼−1.7% Reduced · −1K sh | |
| 22 | PNC Finl Svcs Group Inc COM | $12.9M | 52.5K | 1.6% | ▼−1.1% Reduced · −581 sh | |
| 23 | New York Times Co MTN Be CL A | $12.6M | 180.2K | 1.5% | ▲+454% Added · +148K sh | |
| 24 | Boston Scientific Corp COM | $11.6M | 272.5K | 1.4% | ▲+5.7% Added · +15K sh | |
| 25 | Martin Marietta Matls Inc COM | $11.0M | 19.1K | 1.3% | ▲+28% Added · +4K sh | |
| 26 | Nike Inc CL B | $9.4M | 228.1K | 1.1% | ▲+23% Added · +42K sh | |
| 27 | Eli Lilly & Co COM | $9.2M | 7.6K | 1.1% | ▼−5.5% Reduced · −443 sh | |
| 28 | Rayonier Inc COM | $9.1M | 426.6K | 1.1% | ▼−1.3% Reduced · −6K sh | |
| 29 | Unifirst Corp Mass COM | $8.7M | 32.8K | 1.1% | ▼−67% Reduced · −66K sh | |
| 30 | Netflix Inc. COM | $8.6M | 121.1K | 1.1% | ▲New New position | |
| 31 | Eaton Corp PLC SHS | $8.6M | 20.3K | 1.1% | ▼−35% Reduced · −11K sh | |
| 32 | Analog Devices Inc COM | $8.5M | 21.3K | 1.0% | ▼−48% Reduced · −19K sh | |
| 33 | Texas Instrs Inc COM | $8.0M | 27.0K | 1.0% | ▼−40% Reduced · −18K sh | |
| 34 | Epam Sys Inc COM | $7.3M | 92.2K | 0.9% | ▲+287% Added · +68K sh | |
| 35 | Concentra Group Holdings Par COMMON STOCK | $7.2M | 243.5K | 0.9% | ▼−10% Reduced · −29K sh | |
| 36 | Accenture PLC Ireland SHS CLASS A | $7.0M | 55.9K | 0.8% | ▲+290% Added · +42K sh | |
| 37 | Microsoft Corp COM | $6.7M | 17.9K | 0.8% | ▼−20% Reduced · −5K sh | |
| 38 | Doordash Inc CL A | $6.4M | 34.7K | 0.8% | ▼−1.2% Reduced · −438 sh | |
| 39 | Tapestry Inc COM | $6.3M | 43.2K | 0.8% | ▼−1.1% Reduced · −507 sh | |
| 40 | Medtronic PLC SHS | $5.7M | 73.1K | 0.7% | ▲+5.2% Added · +4K sh | |
| 41 | Natera Inc COM | $5.7M | 20.9K | 0.7% | ▲+213% Added · +14K sh | |
| 42 | Broadcom Inc COM | $5.6M | 14.8K | 0.7% | ▼−45% Reduced · −12K sh | |
| 43 | Range Res Corp COM | $5.3M | 143.6K | 0.6% | ▼−0.6% Reduced · −912 sh | |
| 44 | Hca Healthcare Inc COM | $4.6M | 11.9K | 0.6% | ▼−1.3% Reduced · −154 sh | |
| 45 | MKS Inc. COM | $4.2M | 9.4K | 0.5% | ▼−78% Reduced · −33K sh | |
| 46 | Irhythm Holdings Inc COM | $4.1M | 34.5K | 0.5% | ▼−0.8% Reduced · −289 sh | |
| 47 | Tenet Healthcare Corp COM NEW | $4.1M | 21.7K | 0.5% | ▼−42% Reduced · −16K sh | |
| 48 | Bank Of Amer Corp COM | $3.9M | 67.6K | 0.5% | ▼−1.2% Reduced · −821 sh | |
| 49 | Newmark Group Inc CL A | $3.8M | 253.7K | 0.5% | ▲+16% Added · +36K sh | |
| 50 | Ringcentral Inc CL A | $3.6M | 93.3K | 0.4% | ▲+15% Added · +12K sh |
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Use Arkolith to show SIRIOS CAPITAL MANAGEMENT L P's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.