Institutional Manager · CIK 0001104883
SIRIOS CAPITAL MANAGEMENT L P
BOSTON, MA · File #028-05369
Latest AUM
$803.3M
Positions
74
Top-10 Concentration
49.4%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | -101,763 | -$30.9M | +$6.4M |
| REDUCE | APPLIED MATLS INC | 038222105 | -68,053 | -$17.5M | +$4.3M |
| NEW | UNION PAC CORP | UNP | +72,297 | +$16.7M | $0 |
| ADD | MICROSOFT CORP | MSFT | +33,689 | +$16.3M | -$970,028 |
| NEW | ADVANCED MICRO DEVICES INC | AMD | +70,578 | +$15.1M | $0 |
| ADD | ALPHABET INC | GOOG | +47,560 | +$14.9M | +$545,290 |
| REDUCE | ALCON AG (NYS) | ALC | -185,777 | -$14.6M | +$1.7M |
| REDUCE | GLOBUS MED INC | GMED | -161,405 | -$14.1M | +$15.5M |
| NEW | EXACT SCIENCES CORP | 30063P105 | +114,402 | +$11.6M | $0 |
| ADD | PNC FINL SVCS GROUP INC | 693475105 | +50,633 | +$10.6M | +$186,443 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202574 pos · $803.3M
- 13F HOLDINGS REPORTQ/E Sep 202568 pos · $768.2M
- 13F HOLDINGS REPORTQ/E Jun 202559 pos · $689.8M
- 13F HOLDINGS REPORTQ/E Mar 202562 pos · $560.2M
- 13F HOLDINGS REPORTQ/E Dec 202462 pos · $557.1M
- 13F HOLDINGS REPORTQ/E Sep 202464 pos · $565.0M
- 13F HOLDINGS REPORTQ/E Jun 202461 pos · $574.3M
- 13F HOLDINGS REPORTQ/E Mar 202461 pos · $530.7M
- 13F HOLDINGS REPORTQ/E Dec 202354 pos · $528.1M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | GE VERNOVA INC | GEV | 160,699 | $105.0M | 13.61% |
| 2 | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 160,075 | $48.6M | 6.30% |
| 3 | AMAZON COM INC | AMZN | 134,308 | $31.0M | 4.02% |
| 4 | GLOBUS MED INC | GMED | 353,373 | $30.9M | 4.00% |
| 5 | WELLS FARGO CO NEW | 949746101 | 324,412 | $30.2M | 3.92% |
| 6 | MICROSOFT CORP | MSFT | 61,945 | $30.0M | 3.88% |
| 7 | DEXCOM INC | DXCM | 430,948 | $28.6M | 3.71% |
| 8 | ROPER TECHNOLOGIES INC | ROP | 62,746 | $27.9M | 3.62% |
| 9 | CARLYLE GROUP INC | CGABL | 433,852 | $25.6M | 3.32% |
| 10 | META PLATFORMS INC | META | 35,234 | $23.3M | 3.01% |
| 11 | HEICO CORP NEW | HEI-A | 90,760 | $22.9M | 2.97% |
| 12 | CLEAN HARBORS INC | CLH | 77,980 | $18.3M | 2.37% |
| 13 | OLD DOMINION FREIGHT LINE IN | ODFL | 116,541 | $18.3M | 2.37% |
| 14 | ONTO INNOVATION INC | ONTO | 115,355 | $18.2M | 2.36% |
| 15 | ALPHABET INC | GOOG | 55,361 | $17.3M | 2.25% |
| 16 | UNION PAC CORP | UNP | 72,297 | $16.7M | 2.17% |
| 17 | ALCON AG (NYS) | ALC | 201,433 | $15.9M | 2.06% |
| 18 | PNC FINL SVCS GROUP INC | 693475105 | 74,536 | $15.6M | 2.02% |
| 19 | GLOBAL PMTS INC | 37940X102 | 199,886 | $15.5M | 2.00% |
| 20 | ADVANCED MICRO DEVICES INC | AMD | 70,578 | $15.1M | 1.96% |