William Blair & Company
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William Blair & Company’s Korro Bio KRRO Stock Holding History

William Blair & Company’s Portfolio KRRO Stock Details KRRO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change % 		Capital Flow Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-16,230
Closed -$283K – 1872
2025
Q1 		$283K Buy
16,230
+3,335
+26% +$58.1K ﹤0.01% 1282
2024
Q4 		$491K Buy
12,895
+695
+6% +$26.5K ﹤0.01% 1099
2024
Q3 		$408K Buy
+12,200
New +$408K ﹤0.01% 1182