Hedge Fund - Sirios Capital Management

John Brennan Bio, Returns, AUM, Net Worth

Sirios Capital Management is a privately held investment manager based in Boston. The firm offers investment management services to clients, including collective investment vehicles, separately managed accounts, and registered funds.

John Brennan is a Director at Sirios Capital Management. He has previously worked at Sirios Capital Management, MetLife, and Fidelity Investments. John holds an MBA from Stanford University Graduate School of Business (2015-2017).

Sirios Capital Management LP is a hedge fund with 7 clients and discretionary assets under management (AUM) of $765,269,630 (Form ADV from 2024-03-28). Their last reported 13F filing for Q1 2024 included $530,662,553 in managed 13F securities and a top 10 holdings concentration of 42.78%. Sirios Capital Management LP's largest holding is Alcon Inc with 382,329 shares.

John Brennan
Fund Profile
Filing Period:
Fund Name: Sirios Capital Management
Manager John Brennan
Portfolio Value $803,321,558
Change This QTR +1.05%
Filing Period:
Last update:
No. Security Ticker Shares Value Activity % Port History
1. GEV 160,699 $105,028,045 -9% 13.07%
2. TSM 160,075 $48,645,192 -39% 6.06%
3. AMZN 134,308 $31,000,973 +1% 3.86%
4. GMED 353,373 $30,852,997 -32% 3.84%
5. WFC 324,412 $30,235,198 -16% 3.76%
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