ADAGE CAPITAL PARTNERS GP, L.L.C.
BOSTON MA
Hedge Fund
Investment Advisor
Activist Investor
Adage Capital Partners GP is based out of Boston. Adage Capital Partners GP is a hedge fund with 1 clients and discretionary assets under management (AUM) of $59,994,025,140 (Form ADV from 2025-03-25). Their last reported 13F filing for Q1 2025 included $53,988,754,216 in managed 13F securities
and a top 10 holdings concentration of 28.71%. Adage Capital Partners GP's largest holding is Apple Inc with shares held of 13,609,179. Whalewisdom has at least 104 13F filings, 27 13D filings, 1092 13G filings, and 47 Form 4 filings
Business Description
Adage Capital Management, L.P. (“ACM”) was formed in 2001. Bob Atchinson and Phill Gross are the managing directors and principal owners of the firm. Bob and Phill have worked together since 1985.
ACM, collectively with its affiliates Adage Capital Services, LLC (the “Relying Adviser”) and Adage Capital Partners GP, L.L.C. (the “General Partner”), provides investment advisory services to its sole client, Adage Capital Partners, L.P. (“ACP”), a private investment fund. ACM does not manage any separate accounts.
Investment Strategy
ACP aims to outperform the S&P 500 Index through stock selection based on intra-industry fundamental analysis, with a focus on intra-industry valuation methodologies. Primary research is a key component of their investment process. Their staff of portfolio managers and equity analysts track specific sectors within the Index, using stock valuation methodologies tailored to each sector and modified to reflect changing industry factors.
ACP's investments include long and over-weighted positions in attractively valued companies, both within and outside the Index, that are expected to outperform their peers. The portfolio also includes under-weighted and, in some cases, short positions in overvalued companies that are expected to underperform. A primary strategy is investing in undervalued securities, which carries financial risk but offers potential for capital appreciation.
Owners
- ADAGE CAPITAL PARTNERS, L.L.C. - GENERAL PARTNER
- LEHAN, DANIEL, JOSEPH - CHIEF OPERATING OFFICER AND CHIEF COMPLIANCE OFFICER, LIMITED PARTNER
- BARDINELLI, JAMES, ANTHONY - CHIEF FINANCIAL OFFICER, LIMITED PARTNER
- GREALISH, MICHAEL, JOSEPH - EQUITY ANALYST, LIMITED PARTNER
- GROSS, PHILLIP, THOMAS - MANAGING DIRECTOR, LIMITED PARTNER
- ATCHINSON, ROBERT, GEORGE - MANAGING DIRECTOR, LIMITED PARTNER
- HILER, KURT, JAY - EQUITY ANALYST, LIMITED PARTNER Click on the Ownership/Private Fund Data tab for more details.
Known Email Addresses
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Other Contact Information
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2025-03-31
Top Buys (13F)
Name | % Change |
---|---|
SLNO Soleno Therapeutics | 0.36% |
HUBB Hubbell Inc. | 0.34% |
VRTX Vertex Pharmaceutica | 0.29% |
INSM Insmed Inc | 0.29% |
NSC Norfolk Southern Cor | 0.27% |

2025-03-31
Top Sells (13F)
Name | % Change |
---|---|
NVDA NVIDIA Corp | 0.9% |
TSLA Tesla Inc | 0.61% |
BMY Bristol-Myers Squibb | 0.55% |
MSFT Microsoft Corporatio | 0.51% |
AAPL Apple Inc | 0.5% |

2025-03-31
13F Holdings Summary
Name | $ Change |
---|---|
AAPL Apple Inc | 5.6% |
MSFT Microsoft Corporatio | 4.71% |
NVDA NVIDIA Corp | 4.51% |
HES Hess Corporation | 3.05% |
AMZN Amazon.com Inc | 3% |

2025-03-31
13F Activity
Market Value | $54.0b, Prior: $57.2b |
Inflows (Outflows) as % of Total MV | (-1.5381)% |
New Purchases | 117 stocks |
Added To | 314 stocks |
Sold out of | 149 stocks |
Reduced holdings in | 359 stocks |
Top 10 Holdings % | 28.71% |
Turnover %[1] | 26.98% |
Turnover Alt %[2] | 12.87% |
Time Held Top 20 | 23 quarters |
Time Held Top 10 | 21.2 quarters |
Time Held All | 22.07 quarters |
[1]: Turnover is calculated by taking the # of new holdings (initial purchases) + the # of positions sold out of (not just reduced) divided by the total # of holdings for the quarter.
[2]: Alt Turnover is calculated by taking either the total MV of new purchases or the MV of securities sold, whichever is less, divided by the total MV of the fund.

2025-03-31
13F Sector Allocation Over Time
limited to past 4 quarters. Subscribe to see all available data

2025-03-31
Analysis

Top 20 equal-weighted holdings. Performance numbers calculated through 2025-03-31