Magnetar Alpha Star Fund LLC is a hedge fund based in Evanston, Illinois. According to its most recent Form D, filed Dec 15, 2025, the fund has sold $707,000,000 of interests to 2 investors since its first sale in May 2022. The minimum investment it accepts from an outside investor is $450,000,000. 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 Hayley Stein; David Snyderman; Magnetar Alpha Star MM LLC.
Performance
No verified returns have been reported for this fund. Hedge fund returns are not part of SEC filings; managers report them to HedgeMountain directly.
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- Total raised
- $707,000,000Cumulative sales reported on Form D
- Investors
- 2
- First sale
- May 26, 2022
- Minimum investment
- $450,000,000
- Who can invest
- Qualified purchasersSection 3(c)(7): generally $5M+ in investments
- Offering exemption
- Rule 506(b)No general advertising
- Key people and entities
- Hayley Stein; David Snyderman; Magnetar Alpha Star MM LLC
- Latest Form D
- Dec 15, 2025
From SEC filings, not verified. This page republishes the fund's Form D as filed. It is not an offer, solicitation or recommendation, and HedgeMountain 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
Size compared with every hedge fund
Raised more than 92% of the 321 hedge funds based in Illinois, and more than 86% of all 10,157 that report sales.