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Latest SIRIOS CAPITAL MANAGEMENT L P Stock Portfolio

$824Million– No. of Holdings #81

SIRIOS CAPITAL MANAGEMENT L P Performance:
2026 Q1: 0.32%YTD: 0.32%2025: 21.61%
Performance for 2026 Q1 is 0.32%, and YTD is 0.32%, and 2025 is 21.61%.

About SIRIOS CAPITAL MANAGEMENT L P and 13F Hedge Fund Stock Holdings

SIRIOS CAPITAL MANAGEMENT L P is a hedge fund based in Boston, MA. On 2026-05-15, the fund reported it's updated stock portfolio. In the 13F Holdings report, SIRIOS CAPITAL MANAGEMENT L P reported an equity portfolio of $824.8 Millions as of 31 Mar, 2026.

The top stock holdings of SIRIOS CAPITAL MANAGEMENT L P are , TSM, AMZN. The fund has invested 13% of it's portfolio in GE VERNOVA INC and 4.6% of portfolio in TAIWAN SEMICONDUCTOR MANUFAC.

The fund managers got completely rid off EXACT SCIENCES CORP (EXAS), ABBOTT LABS (ABT) and POTLATCHDELTIC CORPORATION (PCH) stocks. They significantly reduced their stock positions in KKR & CO INC (KKR), GE AEROSPACE (GE) and WYNN RESORTS LTD (WYNN). SIRIOS CAPITAL MANAGEMENT L P opened new stock positions in UNIFIRST CORP MASS (UNF), MKS INC. (MKSI) and ALLEGRO MICROSYSTEMS INC (ALGM). The fund showed a lot of confidence in some stocks as they added substantially to NIKE INC (NKE), ACCENTURE PLC IRELAND (ACN) and EPAM SYS INC (EPAM).
SIRIOS CAPITAL MANAGEMENT L P Equity Portfolio Value
Last Reported on: 15 May, 2026

SIRIOS CAPITAL MANAGEMENT L P Annual Return Estimates Vs S&P 500

Our best estimate is that SIRIOS CAPITAL MANAGEMENT L P made a return of 0.32% in the last quarter. In trailing 12 months, it's portfolio return was 27.06%.
  • Performance
  • S&P 500

New Buys

Ticker$ Bought
unifirst corp mass24,792,700
mks inc.9,731,760
allegro microsystems inc9,409,210
rayonier inc8,912,770
martin marietta matls inc8,773,690
range res corp6,527,970
concentra group holdings par5,835,920
irhythm holdings inc4,100,490
New stocks bought by SIRIOS CAPITAL MANAGEMENT L P

Additions

Ticker% Inc.
nike inc1,341
accenture plc ireland907
epam sys inc309
surgery partners inc288
boston scientific corp199
apple inc154
parker-hannifin corp102
vistra corp101
Additions to existing portfolio by SIRIOS CAPITAL MANAGEMENT L P

Reductions

Ticker% Reduced
kkr & co inc-81.88
ge aerospace-73.08
wynn resorts ltd-68.23
hyatt hotels corp-67.5
royal caribbean group-66.94
uber technologies inc-66.33
microsoft corp-63.84
roper technologies inc-61.72
SIRIOS CAPITAL MANAGEMENT L P reduced stake in above stock

Sold off

Ticker$ Sold
potlatchdeltic corporation-8,817,040
pagerduty inc-2,122,020
exact sciences corp-11,618,700
abbott labs-11,333,400
uipath inc-286,317
t-mobile us inc-2,746,120
coca-cola europacific partne-605,967
procter and gamble co-781,613
SIRIOS CAPITAL MANAGEMENT L P got rid off the above stocks

Sector Distribution

SIRIOS CAPITAL MANAGEMENT L P has about 20.4% of it's holdings in Others sector.

  • Others
  • Industrials
  • Technology
  • Healthcare
  • Financial Services
  • Consumer Cyclical
  • Communication Services
  • Consumer Defensive
  • Utilities
  • Real Estate
  • Basic Materials
Sector%
Others20.4
Industrials18.6
Technology18.5
Healthcare13.4
Financial Services8.6
Consumer Cyclical6.8
Communication Services6.3
Consumer Defensive2.1
Utilities1.8
Real Estate1.5
Basic Materials1.1

Market Cap. Distribution

SIRIOS CAPITAL MANAGEMENT L P has about 69.9% of it's portfolio invested in the large-cap and mega-cap stocks.

  • LARGE-CAP
  • MEGA-CAP
  • UNALLOCATED
  • MID-CAP
Category%
LARGE-CAP48
MEGA-CAP21.9
UNALLOCATED20.4
MID-CAP8.7

Stocks belong to which Index?

About 56.7% of the stocks held by SIRIOS CAPITAL MANAGEMENT L P either belong to S&P 500 or RUSSELL 2000 index.

  • S&P 500
  • Others
  • RUSSELL 2000
Index%
S&P 50047.7
Others43.3
RUSSELL 20009
Top 5 Winners (%)%
VIAV
viavi solutions inc
60.8 %
ge vernova inc
29.6 %
AMAT
applied matls inc
27.1 %
ONTO
onto innovation inc
25.2 %
RNG
ringcentral inc
24.4 %
Top 5 Winners ($)$
ge vernova inc
31.1 M
ONTO
onto innovation inc
6.4 M
TSM
taiwan semiconductor manufac
4.6 M
ODFL
old dominion freight line in
3.8 M
CLH
clean harbors inc
3.5 M
Top 5 Losers (%)%
DASH
doordash inc
-30.3 %
DOCU
docusign inc
-26.7 %
BSX
boston scientific corp
-25.7 %
EPAM
epam sys inc
-24.2 %
FROG
jfrog ltd
-19.9 %
Top 5 Losers ($)$
BSX
boston scientific corp
-5.6 M
CG
carlyle group inc
-5.2 M
MSFT
microsoft corp
-4.8 M
WFC
wells fargo & co
-4.4 M
ROP
roper technologies inc
-4.0 M

SIRIOS CAPITAL MANAGEMENT L P Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of SIRIOS CAPITAL MANAGEMENT L P

SIRIOS CAPITAL MANAGEMENT L P has 81 stocks in it's portfolio. About 45.7% of the portfolio is in top 10 stocks. BSX proved to be the most loss making stock for the portfolio. was the most profitable stock for SIRIOS CAPITAL MANAGEMENT L P last quarter.

Last Reported on: 15 May, 2026
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions