American Century Companies’s Seres Therapeutics MCRB Stock Holding History

American Century Companies's MCRB Position: Q2 2026 in Review

American Century Companies reduced its Seres Therapeutics (MCRB) stake by 55% in Q2 2026, selling an estimated $259K and leaving 28,313 shares worth $223K. The position accounts for ﹤0.01% of the portfolio, ranked #2759.

American Century Companies first reported a position in MCRB in Q2 2016 and has held it in 9 quarters since. The position peaked at $3.16M in Q2 2016. 35 funds tracked by Wall St. Rank hold MCRB as of Q2 2026.

• American Century Companies held 28,313 shares of Seres Therapeutics worth $223K as of Q2 2026.
• American Century Companies sold 34,003 Seres Therapeutics shares in Q2 2026, an estimated $259K.
• Seres Therapeutics made up ﹤0.01% of American Century Companies's portfolio in Q2 2026, its #2759 holding.
• American Century Companies first reported a position in Seres Therapeutics in Q2 2016 and has held it in 9 quarters since.
• American Century Companies's Seres Therapeutics position peaked at $3.16M in Q2 2016.
• 35 funds tracked by Wall St. Rank held Seres Therapeutics as of Q2 2026.

Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.