AltMountain

Adage Capital Partners, L.P.

Boston, MA · CIK 1163846 · Managed by Adage Capital Management, L.P.

Adage Capital Partners, L.P. is a hedge fund based in Boston, Massachusetts. According to its most recent Form D, filed Jan 28, 2026, the fund has sold $20,726,858,055 of interests to 417 investors since its first sale in Jul 2001. The filing does not set a minimum investment. It relies on the Section 3(c)(7) exclusion, so investors generally must be qualified purchasers. The offering uses Rule 506(b), which does not permit general solicitation. Related persons named in the filing include Adage Management, L.L.C; Adage Capital Partners GP, L.L.C; Robert Atchinson.

Performance

13F estimate · public data only

No verified returns have been reported for this fund. As a rough guide, Adage Capital Management, L.P., which manages it, disclosed U.S. stock holdings that returned an estimated +11.4% 2026 YTD through Jun 30 (S&P 500: +9.5%), based only on its public 13F filings. Over a longer period, Q3 2024 to Q2 2026, the estimate is +40.8% (S&P 500: +37.2%).

This estimate covers the firm's whole disclosed long U.S. stock portfolio. It is not this fund's return and excludes dividends, fees, shorts, derivatives, bonds, cash and trading within each quarter.

Is this your fund? Report your monthly returns · How performance works

Total raised
$20,726,858,055Cumulative sales reported on Form D
Investors
417
First sale
Jul 1, 2001
Minimum investment
None set
Who can invest
Qualified purchasersSection 3(c)(7): generally $5M+ in investments
Offering exemption
Rule 506(b)No general advertising
Key people and entities
Adage Management, L.L.C; Adage Capital Partners GP, L.L.C; Robert Atchinson
Latest Form D
Jan 28, 2026

From SEC filings, not verified. This page republishes the fund's Form D as filed. It is not an offer, solicitation or recommendation, and AltMountain has not reviewed the fund. “Raised” is cumulative sales, not current assets or performance. Private funds are speculative, illiquid and generally limited to accredited investors or qualified purchasers. Full disclosures · Request a correction

Questions about Adage Capital Partners, L.P.

What is the minimum investment for Adage Capital Partners, L.P.?

Adage Capital Partners, L.P.'s latest Form D, filed Jan 28, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in Adage Capital Partners, L.P.?

Adage Capital Partners, L.P. is generally open only to qualified purchasers (generally individuals with at least $5 million in investments), because it relies on Section 3(c)(7). It uses Rule 506(b), which does not allow general advertising.

How much has Adage Capital Partners, L.P. raised?

Adage Capital Partners, L.P. reports $20,726,858,055 sold from 417 investors on its Form D filed Jan 28, 2026. This is cumulative sales since the offering began, not current assets or performance.

Where is Adage Capital Partners, L.P. based?

Adage Capital Partners, L.P. is based in Boston, Massachusetts and is managed by Adage Capital Management, L.P..

When did Adage Capital Partners, L.P. launch?

Adage Capital Partners, L.P. reports its first sale in Jul 2001.

Size compared with every hedge fund

Raised more than 100% of the 474 hedge funds based in Massachusetts, and more than 100% of all 10,307 that report sales.

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