CIK: 0001104883
Total reported value
$824.8M
Reporting period: 2026-03-31 · Number of holdings: 81
SIRIOS CAPITAL MANAGEMENT L P disclosed 81 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $824.8M and a quarterly turnover rate of 42.5%.
Browse other institutions with $100M to $1B AUMBrowse other institutions starting with "S"
Sirios Capital Management L P's disclosed holdings carry a Herfindahl concentration index of 0.036 — mathematically equivalent to about 28 equally-sized positions, well below its 81 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.39), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim MSFT
-63.8% -$21.7M
Trim ROP
-61.7% -$19.4M
Add ONTO
+33.4% $13.4M
Add GOOGL
+91.6% $13.2M
Trim TSM
-29.9% -$10.7M
Trim META
-31.4% -$9.4M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GEV | GE Vernova INC | Stock-Industrials | 13.01% | -0.06% | -23.50% | |
| 2 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 4.60% | -1.46% | -29.87% | |
| 3 | AMZN | Amazon.com INC | Stock-Consumer Disc | 4.26% | +0.40% | +25.54% | |
| 4 | ONTO | Onto Innovation INC | Stock-Tech | 3.83% | +1.56% | +33.44% | |
| 5 | GMED | Globus Medical INC - A | Stock-Healthcare | 3.70% | — | +0.23% | |
| 6 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 3.70% | +1.54% | +91.56% | |
| 7 | DXCM | Dexcom INC | Stock-Healthcare | 3.26% | -0.30% | -0.60% | |
| 8 | CG | Carlyle Group Inc/the | Stock-Financials | 3.18% | — | +24.99% | |
| 9 | WFC | Wells Fargo & Co | Stock-Financials | 3.14% | -0.62% | +0.26% | |
| 10 | UNF | Unifirst Corp/ma | Stock-Other | 3.01% | +3.01% | NEW | |
| 11 | HEI-A | Heico Corp-class A | Stock-Other | 2.12% | -0.73% | -8.53% | |
| 12 | AMD | Advanced Micro Devices | Stock-Tech | 2.04% | +0.16% | +17.22% | |
| 13 | ALC | Alcon Inc. | Stock-Healthcare | 2.00% | — | +8.65% | |
| 14 | CLH | Clean Harbors INC | Stock-Industrials | 1.99% | -0.29% | -26.63% | |
| 15 | UNP | Union Pacific CORP | Stock-Industrials | 1.98% | — | -7.03% | |
| 16 | BSX | Boston Scientific CORP | Stock-Healthcare | 1.96% | +0.94% | +199.19% | |
| 17 | ODFL | Old Dominion Freight Line | Stock-Industrials | 1.93% | -0.34% | -29.97% | |
| 18 | VST | Vistra CORP | Stock-Utilities | 1.77% | +0.80% | +101.56% | |
| 19 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.68% | -1.22% | -31.40% | |
| 20 | GPN | Global Payments INC | Stock-Industrials | 1.64% | -0.29% | +0.62% | |
| 21 | WCN | Waste Connections INC | Stock-Industrials | 1.62% | — | +9.05% | |
| 22 | CARR | Carrier Global CORP | Stock-Industrials | 1.58% | — | +2.26% | |
| 23 | ADI | Analog Devices INC | Stock-Tech | 1.57% | — | -11.32% | |
| 24 | ETN | Eaton Corporation plc | Stock-Industrials | 1.34% | +0.23% | +10.62% | |
| 25 | PNC | Pnc Financial Services Group | Stock-Financials | 1.34% | -0.60% | -28.80% | |
| 26 | NKE | Nike INC -cl B | Stock-Consumer Disc | 1.19% | +1.09% | +1341.34% | |
| 27 | MKSI | Mks INC | Stock-Tech | 1.18% | +1.18% | NEW | |
| 28 | ALGM | Allegro Microsystems INC | Stock-Other | 1.14% | +1.14% | NEW | |
| 29 | RYN | Rayonier INC | Stock-Real Estate | 1.08% | +1.08% | NEW | |
| 30 | MLM | Martin Marietta Materials | Stock-Materials | 1.06% | +1.06% | NEW | |
| 31 | TXN | Texas Instruments INC | Stock-Tech | 1.05% | — | -23.94% | |
| 32 | PH | Parker Hannifin CORP | Stock-Industrials | 1.04% | +0.52% | +102.14% | |
| 33 | ROP | Roper Technologies INC | Stock-Tech | 1.03% | -2.45% | -61.72% | |
| 34 | AVGO | Broadcom INC | Stock-Tech | 1.01% | +0.30% | +63.31% | |
| 35 | MSFT | Microsoft CORP | Stock-Tech | 1.01% | -2.72% | -63.84% | |
| 36 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.90% | -0.47% | -21.15% | |
| 37 | NVDA | Nvidia CORP | Stock-Tech | 0.87% | — | +7.87% | |
| 38 | THC | Tenet Healthcare CORP | Stock-Healthcare | 0.86% | -0.35% | -23.26% | |
| 39 | RRC | Range Resources CORP | Stock-Energy | 0.79% | +0.79% | NEW | |
| 40 | TPR | Tapestry INC | Stock-Consumer Disc | 0.75% | — | -5.79% | |
| 41 | MDT | Medtronic plc | Stock-Healthcare | 0.73% | — | +14.95% | |
| 42 | CON | Concentra Group Holdings Par | Stock-Other | 0.71% | +0.71% | NEW | |
| 43 | HCA | Hca Healthcare INC | Stock-Healthcare | 0.69% | — | -0.26% | |
| 44 | DASH | Doordash INC - A | Stock-Consumer Disc | 0.64% | -0.60% | -20.31% | |
| 45 | IRTC | Irhythm Holdings INC | Stock-Healthcare | 0.50% | +0.50% | NEW | |
| 46 | FROG | JFrog Ltd. | Stock-Tech | 0.48% | — | +101.21% | |
| 47 | SPGI | S&p Global INC | Stock-Financials | 0.46% | +0.46% | NEW | |
| 48 | DDOG | Datadog INC - Class A | Stock-Tech | 0.43% | — | +51.77% | |
| 49 | BAC | Bank Of America CORP | Stock-Financials | 0.40% | — | +7.98% | |
| 50 | AMAT | Applied Materials INC | Stock-Tech | 0.40% | — | -35.97% |
Performance for Q3 2026
+1.3%
Performance Last 4 Quarters
+28.3%
Based on 76% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 81 | $824.8M | 43 | |
| 2025-12-31 | 74 | $803.3M | 35 | |
| 2025-09-30 | 68 | $768.2M | 49 | |
| 2025-06-30 | 59 | $689.8M | 0 | |
| 2025-03-31 | 62 | $560.2M | 100 | |
| 2024-12-31 | 62 | $557.1M | 0 | |
| 2024-09-30 | 64 | $565.0M | 0 | |
| 2024-06-30 | 61 | $574.3M | 0 | |
| 2024-03-31 | 61 | $530.7M | 0 | |
| 2023-12-31 | 52 | $490.2M | 0 | |
| 2023-09-30 | 54 | $528.1M | 0 | |
| 2023-06-30 | 55 | $579.0M | 0 | |
| 2023-03-31 | 58 | $567.4M | 0 | |
| 2022-12-31 | 54 | $542.9M | 0 | |
| 2022-09-30 | 56 | $539.8M | 0 | |
| 2022-06-30 | 56 | $553.8M | 0 | |
| 2022-03-31 | 57 | $751.4M | 0 | |
| 2021-12-31 | 78 | $873.3M | 0 | |
| 2021-09-30 | 81 | $955.9M | 0 | |
| 2021-06-30 | 86 | $1.1B | 100 | |
| 2021-03-31 | 87 | $1.2B | 64 | |
| 2020-12-31 | 97 | $1.3B | 55 | |
| 2020-09-30 | 93 | $1.2B | 55 | |
| 2020-06-30 | 85 | $1.2B | 70 | |
| 2020-03-31 | 70 | $1.1B | 100 | |
| 2019-12-31 | 53 | $1.6B | 0 | |
| 2019-09-30 | 50 | $1.5B | 0 | |
| 2019-06-30 | 53 | $1.6B | 0 | |
| 2019-03-31 | 49 | $1.6B | 52 | |
| 2018-12-31 | 49 | $1.7B | 64 | |
| 2018-09-30 | 55 | $1.9B | 47 | |
| 2018-06-30 | 54 | $1.9B | 55 | |
| 2018-03-31 | 53 | $2.0B | 48 | |
| 2017-12-31 | 51 | $2.0B | 50 | |
| 2017-09-30 | 45 | $1.9B | 44 | |
| 2017-06-30 | 52 | $2.0B | 53 | |
| 2017-03-31 | 42 | $2.2B | 41 | |
| 2016-12-31 | 36 | $2.0B | 55 | |
| 2016-09-30 | 39 | $1.8B | 37 | |
| 2016-06-30 | 47 | $2.1B | 56 | |
| 2016-03-31 | 53 | $2.7B | 47 | |
| 2015-12-31 | 51 | $2.8B | 46 | |
| 2015-09-30 | 54 | $3.1B | 36 | |
| 2015-06-30 | 53 | $3.0B | 46 | |
| 2015-03-31 | 50 | $2.7B | 55 | |
| 2014-12-31 | 46 | $2.8B | 47 | |
| 2014-09-30 | 44 | $2.9B | 52 | |
| 2014-06-30 | 46 | $2.9B | 44 | |
| 2014-03-31 | 41 | $3.1B | 90 | |
| 2013-12-31 | 39 | $1.3B | 49 | |
| 2013-09-30 | 41 | $921.6M | 79 | |
| 2013-06-30 | 44 | $654.9M | 0 |
Sirios Capital Management L P's most significant position changes for 2026-03-31: New buy: Unifirst Corp/ma (UNF); Sold out: Exact Sciences CORP (EXK); Sold out: Abbott Laboratories (ABT); New buy: Mks INC (MKSI); New buy: Allegro Microsystems INC (ALGM).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ONTO | Onto Innovation INC | +1.6% | +33.44% | Add |
| 2 | GOOGL | Alphabet Inc-cl A | +1.5% | +91.56% | Add |
| 3 | NKE | Nike INC -cl B | +1.1% | +1341.34% | Add |
| 4 | BSX | Boston Scientific CORP | +0.9% | +199.19% | Add |
| 5 | VST | Vistra CORP | +0.8% | +101.56% | Add |
| 6 | PH | Parker Hannifin CORP | +0.5% | +102.14% | Add |
| 7 | AMZN | Amazon.com INC | +0.4% | +25.54% | Add |
| 8 | AVGO | Broadcom INC | +0.3% | +63.31% | Add |
| 9 | ACN | Accenture plc | +0.3% | +907.39% | Add |
| 10 | EPAM | Epam Systems INC | +0.2% | +309.43% | Add |
| 11 | ETN | Eaton Corporation plc | +0.2% | +10.62% | Add |
| 12 | AAPL | Apple INC | +0.2% | +154.47% | Add |
| 13 | AMD | Advanced Micro Devices | +0.2% | +17.22% | Add |
| 14 | GEV | GE Vernova INC | -0.1% | -23.50% | Trim |
| 15 | GPN | Global Payments INC | -0.3% | +0.62% | Add |
| 16 | CLH | Clean Harbors INC | -0.3% | -26.63% | Trim |
| 17 | DXCM | Dexcom INC | -0.3% | -0.60% | Trim |
| 18 | ODFL | Old Dominion Freight Line | -0.3% | -29.97% | Trim |
| 19 | THC | Tenet Healthcare CORP | -0.4% | -23.26% | Trim |
| 20 | LLY | Eli Lilly & Co | -0.5% | -21.15% | Trim |
| 21 | DASH | Doordash INC - A | -0.6% | -20.31% | Trim |
| 22 | PNC | Pnc Financial Services Group | -0.6% | -28.80% | Trim |
| 23 | WFC | Wells Fargo & Co | -0.6% | +0.26% | Add |
| 24 | HEI-A | Heico Corp-class A | -0.7% | -8.53% | Trim |
| 25 | KKR | Kkr & Co INC | -0.8% | -81.88% | Trim |
| 26 | GE | General Electric | -1.2% | -73.08% | Trim |
| 27 | META | Meta Platforms Inc-class A | -1.2% | -31.40% | Trim |
| 28 | TSM | Taiwan Semiconductor-sp Adr | -1.5% | -29.87% | Trim |
| 29 | ROP | Roper Technologies INC | -2.5% | -61.72% | Trim |
| 30 | MSFT | Microsoft CORP | -2.7% | -63.84% | Trim |
| 31 | UNF | Unifirst Corp/ma | — | NEW | New buy |
| 32 | EXK | Exact Sciences CORP | — | EXIT | Sold out |
| 33 | ABT | Abbott Laboratories | — | EXIT | Sold out |
| 34 | MKSI | Mks INC | — | NEW | New buy |
| 35 | ALGM | Allegro Microsystems INC | — | NEW | New buy |
| 36 | RYN | Rayonier INC | — | NEW | New buy |
| 37 | PCH | Potlatchdeltic CORP | — | EXIT | Sold out |
| 38 | MLM | Martin Marietta Materials | — | NEW | New buy |
| 39 | RRC | Range Resources CORP | — | NEW | New buy |
| 40 | CON | Concentra Group Holdings Par | — | NEW | New buy |
| 41 | IRTC | Irhythm Holdings INC | — | NEW | New buy |
| 42 | SPGI | S&p Global INC | — | NEW | New buy |
| 43 | NMRK | Newmark Group Inc-class A | — | NEW | New buy |
| 44 | STZ | Constellation Brands Inc-a | — | NEW | New buy |
| 45 | KO | Coca-cola Co/the | — | NEW | New buy |
| 46 | EXTR | Extreme Networks INC | — | NEW | New buy |
| 47 | TMUS | T-mobile US INC | — | EXIT | Sold out |
| 48 | NYT | New York Times Co-a | — | NEW | New buy |
| 49 | CHD | Church & Dwight Co INC | — | NEW | New buy |
| 50 | PD | Pagerduty INC | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-15 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-12 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-14 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-15 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-05-10 | Amendment | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-15 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-13 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-15 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-16 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-14 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-16 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-13 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-14 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-15 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-05-21 | Amendment | View on EDGAR |
| 2019-12-31 | 2020-02-14 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2020-05-21 | Amendment | View on EDGAR |
| 2019-09-30 | 2019-11-13 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2020-05-21 | Amendment | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-15 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-13 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-14 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-12 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-13 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-07 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-10 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-14 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-10 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-16 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-11 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-16 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-14 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-05-15 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-02-17 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-11-14 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-14 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-06-09 | Amendment | View on EDGAR |
| 2014-03-31 | 2014-05-15 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-14 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-11-14 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-14 | 13F-HR | View on EDGAR |
Institutions with a similar AUM
CIK 0001700530
Total reported value
$824.8M
362 stks
2025-03-31
Stale — no recent filing
AUM within 0.0% of this institution
CIK 0001589282
Total reported value
$825.1M
225 stks
2026-03-31
AUM within 0.0% of this institution
CIK 0000763910
Total reported value
$823.7M
215 stks
2015-12-31
Stale — no recent filing
AUM within 0.1% of this institution
Institutions with overlapping top holdings
CIK 0001055966
Total reported value
$3.4B
65 stks
2026-03-31
3 of the top 5 holdings overlap, including GE Vernova INC
CIK 0001410833
Total reported value
$858.0M
30 stks
2026-03-31
3 of the top 5 holdings overlap, including GE Vernova INC
CIK 0000062039
Total reported value
$7.1B
616 stks
2026-03-31
2 of the top 5 holdings overlap, including Amazon.com INC