SPERO THERAPEUTICS INC

Ticker: SPRO CUSIP: 84833T103 Class: COM

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025
Shares 40,219 Value ($000) $76 Avg Close $2.20 Range $1.80 - $3.22