American Century Companies’s Korro Bio KRRO Stock Holding History

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

American Century Companies opened a new position in Korro Bio (KRRO) in Q2 2026: 10,153 shares worth $134K. The stake represents ﹤0.01% of the portfolio and ranks #2815 among its holdings. This is a return to the name: American Century Companies previously reported a position in KRRO as recently as Q4 2025.

American Century Companies first reported a position in KRRO in Q3 2025 and has held it in 3 quarters since. The position peaked at $419K in Q3 2025. 106 funds tracked by Wall St. Rank hold KRRO as of Q2 2026.

• American Century Companies held 10,153 shares of Korro Bio worth $134K as of Q2 2026.
• Korro Bio was a new American Century Companies position in Q2 2026.
• Korro Bio made up ﹤0.01% of American Century Companies's portfolio in Q2 2026, its #2815 holding.
• American Century Companies first reported a position in Korro Bio in Q3 2025 and has held it in 3 quarters since.
• American Century Companies's Korro Bio position peaked at $419K in Q3 2025.
• 106 funds tracked by Wall St. Rank held Korro Bio as of Q2 2026.

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