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SIRIOS CAPITAL MANAGEMENT L P

Registered adviser
Location
BOSTON, MA
Portfolio Value
Small $822,254,692
Diversification
Diversified
Filing Date
Global Rank
#2,852 / 8,827 ▼ 237
Top Industry
Specialty Industrial Machinery 14.7%
Period ended 4 months ago
Filed Aug 14, 2026 · 3mo
26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Registered adviser
Form ADV roster, Nov 1, 2026
Form ADV adviser
CRD 160580
Roster of Nov 1, 2026
Regulatory AUM
$937,452,708
Main clients
Pooled investment vehicles (100% of AUM)
Private funds
3 funds · Hedge funds
Focus by fund count, roster of Nov 1, 2026
$690,679,764 gross assets
LEI
F6G82SJSR676YWYS7W68
Private funds on Schedule D 7.B.(1)
As filed Mar 28, 2024; SEC's bulk Form ADV archive ends with 2024 filings.
$539,959,940 gross assets in 3 funds Hedge funds $539,959,940 (3)
Form ADV history
Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.
Rosters Regulatory AUM Main clients
Apr 2026 to Nov 2026 $937,452,708 Pooled investment vehicles (100%)
Apr 2025 to Mar 2026 $892,484,646 Pooled investment vehicles (100%)
Apr 2024 to Mar 2025 $765,269,630 Pooled investment vehicles (94%)
May 2023 to Mar 2024 $893,601,940 Pooled investment vehicles (93%)
Apr 2023 $893,601,940 Pooled investment vehicles (93%)
Apr 2022 to Mar 2023 $1,195,834,087 Pooled investment vehicles (90%)
3 earlier changes not shown.
Stated strategy
Fundamental active, Value, Growth, Long/short hedge, Private markets Form ADV Part 2A, Sep 16, 2026 · original
In the firm's words
  • Fundamental active: The Adviser generally utilizes a fundamental, research-intensive approach to identify investment opportunities as well as potential short-sale candidates.
  • Value: In the Hedge Fund Strategy, the Adviser seeks to buy attractively-valued, growth-oriented companies of mid to large capitalization, and short stocks with deteriorating fundamentals and/or valuations.
  • Growth: The Adviser generally focuses on investments in medium to large capitalization growth companies to take advantage of the Adviser’s special expertise in these areas.
  • Long/short hedge: The Hedge Fund Strategy combines the flexibility of a multisector, diversified long/short hedge fund with the focus of an individual sector fund.
  • Private markets: This strategy involves making direct investments in timber and timberland, as well as other timber-related investments, throughout the continental United States that the Adviser believes are undervalued.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Diversified active
Top 10 weight 45.8%, 28.8 effective positions, active share 78.8% against the S&P 500 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests
Turnover
Medium turnover
66.7% over the last four quarters (30% to under 100%)
Horizon
Horizon unknown
The value-weighted holding period is at least 9.4 quarters, but 4.7% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 78.8%; sector active share 29.3% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

86 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
11.9%
−1.1 pts
Top 5
31.0%
+1.6 pts
Top 10
45.8%
+0.1 pts
HHI
347
Sep 2023 → Jun 2026 · range 302 – 493
Diversified−11

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Industrials 31.4% $258,337,857
Technology 23.0% $189,113,869
Healthcare 15.8% $129,565,760
Consumer Cyclical 8.8% $72,338,684
Communication Services 7.2% $58,971,585
Financial Services 6.6% $54,431,547
Utilities 1.8% $15,168,676
Consumer Defensive 1.8% $15,085,451
Real Estate 1.6% $12,912,077
Basic Materials 1.3% $10,989,595
Energy 0.6% $5,339,591

Last Quarter's Activity

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Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
17 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
14 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
9 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
86 tracked positions · $822,254,692 total · filing declares 86 positions · $822,254,731 · as of Jun 30, 2026
Showing 1–50 of 86 positions by value · page 1 of 2
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 86 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.