Austin M. Kairnes
Portfolio Manager at Longfellow Investment Management Co. LLC
About
Austin M. Kairnes is a Portfolio Manager at Longfellow Investment Management Co., LLC, based in East Greenwich, RI, where he is responsible for overseeing investment strategies and managing client portfolios. He specializes in fixed income and multi-asset class strategies, working with institutional clients to deliver tailored investment solutions across public and private markets.
Before joining Longfellow in December 2020, Austin was a Portfolio Manager at Cadence Capital Management, where he focused on equity strategies, and previously he held the position of Senior Portfolio Manager at QS Investors/Batterymarch, gaining extensive expertise in quantitative investment approaches and multi-asset portfolios. His experience spans both equity and fixed income sectors, with a particular emphasis on institutional mandates and customized client solutions.
Austin holds an MBA from Duke University’s Fuqua School of Business and a BA in Economics from Boston College, grounding his investment approach in rigorous economic analysis and advanced portfolio construction techniques. His career reflects a commitment to delivering performance through disciplined investment processes and a strong track record managing diverse asset classes for a range of client types.
Career History
| Organization | Role | Date Range | Details |
|---|---|---|---|
| Longfellow Investment Management Co., LLC | Portfolio Manager | Dec 2020 to Present | Co-manage equity portfolios in U.S., International, and Emerging Markets regions Lead equity research Assist with marketing and client service |
| Cadence Capital Management LLC | Portfolio Manager | Dec 2016 to Dec 2020 | • Co-managed equity portfolios in U.S., International, and Emerging Markets regions and across value and growth styles ($1+ billion in assets under management) • Conducted research to enhance existing... |
| QS Investors/Batterymarch | Senior Portfolio Manager | Apr 2008 to Dec 2016 | • Managed U.S. Large and Mid Cap portfolios; co-managed Global Market Neutral; managed products benchmarked to factor-premia-weighted indices ($2+ billion in assets under management) • Conducted quant... |
| Putnam Investments | Portfolio Manager | Mar 2006 to Mar 2008 | • Co-managed the Putnam Equity Income Fund ($3+ billion in assets under management) • Directed U.S. Large Cap Quantitative Equity Research o Managed and mentored a group of 7 quantitative equity analy... |
| Indepedence Investments | Portfolio Manager | Jul 2000 to Feb 2006 | • Co-developed and co-managed quantitative U.S. small cap core, small cap value, and large cap value pilot equity products • Collaborated with fundamental investment professionals on research projects... |
Education
Duke University - The Fuqua School of Business
Master of Business Administration - MBA
1998 — 2000
Boston College
Bachelor of Arts - BA, Economics
1988 — 1992
Others at Longfellow Investment Management Co. LLC (15)
| Name | Role | Location |
|---|---|---|
 | Portfolio Manager | Boston, MA , United States |
B Barbara McKenna | Managing Principal and Portfolio Manager | Boston, MA , United States |
 | ESG Strategist | Boston, MA , United States |
D David Stuehr | Principal, Portfolio Manager | Westwood, MA , United States |
 | Corporate Trader | Merrimack, NH , United States |
M Marcos Duque | Analyst and Trader | Boston, MA , United States |
R Ryan Nelson | Principal, Portfolio Manager | Boston, MA , United States |
 | Portfolio Manager and Trader | Whitman, MA , United States |
 | Securitized Trader | Philadelphia, PA , United States |
D Deena R. | Client Portfolio Manager | Nashville, TN , United States |