American Century Companies
GBIO

American Century Companies’s Generation Bio GBIO Stock Holding History

American Century Companies’s Portfolio GBIO Stock Details GBIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q4 		– Sell
-3,132
Closed -$77.4K – 2911
2024
Q3 		$77.4K Sell
3,132
-47
-1% -$1.24K ﹤0.01% 2848
2024
Q2 		$89.6K Buy
3,179
+2,117
+199% +$68.8K ﹤0.01% 2833
2024
Q1 		$43.2K Buy
+1,062
New +$25K ﹤0.01% 2906
2023
Q4 		– Sell
-3,089
Closed -$117K – 2896
2023
Q3 		$117K Buy
3,089
+1,310
+74% +$62K ﹤0.01% 2702
2023
Q2 		$97.8K Buy
1,779
+734
+70% +$33.7K ﹤0.01% 2682
2023
Q1 		$48.8K Buy
+1,045
New +$50.5K ﹤0.01% 2628
2021
Q3 		– Sell
-24,638
Closed -$6.63M – 2308
2021
Q2 		$6.63M Buy
24,638
+10,389
+73% +$3.11M ﹤0.01% 922
2021
Q1 		$4.05M Buy
14,249
+2,257
+19% +$722K ﹤0.01% 990
2020
Q4 		$3.4M Sell
11,992
-379
-3% -$122K ﹤0.01% 964
2020
Q3 		$3.82M Buy
12,371
+154
+1% +$36.8K ﹤0.01% 841
2020
Q2 		$2.57M Buy
+12,217
New +$2.72M ﹤0.01% 859

Other funds holding GBIO

T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
JFG
Jefferies Financial Group New York $14.6B AUM 40.95% 1-Year Est. Return
EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

American Century Companies's GBIO Position: Q4 2024 in Review

American Century Companies sold out of Generation Bio (GBIO) in Q4 2024, closing a stake of 3,132 shares — an estimated $77.4K sold.

American Century Companies first reported a position in GBIO in Q2 2020 and held it in 11 quarters. The position peaked at $6.63M in Q2 2021. 78 funds tracked by Wall St. Rank hold GBIO as of Q4 2024.

  • American Century Companies reported no remaining Generation Bio position as of Q4 2024 after selling out during the quarter.
  • American Century Companies sold 3,132 Generation Bio shares in Q4 2024, an estimated $77.4K.
  • American Century Companies first reported a position in Generation Bio in Q2 2020 and held it in 11 quarters.
  • American Century Companies's Generation Bio position peaked at $6.63M in Q2 2021.
  • 78 funds tracked by Wall St. Rank held Generation Bio as of Q4 2024.

Based on American Century Companies's 13F filing for Q4 2024, filed 11 Feb 2025.