Jane Street’s SEI Investments SEIC Stock Holding History

Jane Street's SEIC Position: Q1 2026 in Review

Jane Street reduced its SEI Investments (SEIC) stake by 95% in Q1 2026, selling an estimated $10.8M and leaving 6,300 shares worth $494K. The position accounts for ﹤0.01% of the portfolio, ranked #8056.

Jane Street first reported a position in SEIC in Q2 2013 and has held it in 41 quarters since. The position peaked at $34M in Q2 2025. 566 funds tracked by Wall St. Rank hold SEIC as of Q1 2026.

• Jane Street held 6,300 shares of SEI Investments worth $494K as of Q1 2026.
• Jane Street sold 130,937 SEI Investments shares in Q1 2026, an estimated $10.8M.
• SEI Investments made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8056 holding.
• Jane Street first reported a position in SEI Investments in Q2 2013 and has held it in 41 quarters since.
• Jane Street's SEI Investments position peaked at $34M in Q2 2025.
• 566 funds tracked by Wall St. Rank held SEI Investments as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.