DS
GBIO

David Shaw’s Generation Bio GBIO Stock Holding History

David Shaw’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
2025
Q1 		– Sell
-34,492
Closed -$366K – 4421
2024
Q4 		$366K Sell
34,492
-14,323
-29% -$255K ﹤0.01% 3792
2024
Q3 		$1.21M Buy
48,815
+61
+0.1% +$1.61K ﹤0.01% 3129
2024
Q2 		$1.37M Buy
48,754
+4,383
+10% +$142K ﹤0.01% 2965
2024
Q1 		$1.81M Buy
44,371
+16,060
+57% +$378K ﹤0.01% 2712
2023
Q4 		$467K Buy
28,311
+25,812
+1,033% +$450K ﹤0.01% 3540
2023
Q3 		$94.7K Sell
2,499
-1,125
-31% -$53.3K ﹤0.01% 3856
2023
Q2 		$199K Sell
3,624
-4,628
-56% -$212K ﹤0.01% 3742
2023
Q1 		$355K Sell
8,252
-14,433
-64% -$698K ﹤0.01% 3695
2022
Q4 		$892K Buy
22,685
+943
+4% +$49.5K ﹤0.01% 3524
2022
Q3 		$1.15M Buy
21,742
+3,542
+19% +$222K ﹤0.01% 3488
2022
Q2 		$1.19M Sell
18,200
-4,460
-20% -$292K ﹤0.01% 3502
2022
Q1 		$1.66M Buy
22,660
+6,621
+41% +$384K ﹤0.01% 3488
2021
Q4 		$1.14M Buy
16,039
+15,203
+1,819% +$2.65M ﹤0.01% 3820
2021
Q3 		$210K Sell
836
-11,679
-93% -$2.8M ﹤0.01% 4546
2021
Q2 		$3.37M Sell
12,515
-891
-7% -$267K ﹤0.01% 2393
2021
Q1 		$3.81M Buy
13,406
+11,771
+720% +$3.77M ﹤0.01% 2063
2020
Q4 		$464K Buy
+1,635
New +$525K ﹤0.01% 3423

Other funds holding GBIO

T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

David Shaw's GBIO Position: Q1 2025 in Review

David Shaw sold out of Generation Bio (GBIO) in Q1 2025, closing a stake of 34,492 shares — an estimated $366K sold.

David Shaw first reported a position in GBIO in Q4 2020 and held it in 17 quarters. The position peaked at $3.81M in Q1 2021. 79 funds tracked by Wall St. Rank hold GBIO as of Q1 2025.

  • David Shaw reported no remaining Generation Bio position as of Q1 2025 after selling out during the quarter.
  • David Shaw sold 34,492 Generation Bio shares in Q1 2025, an estimated $366K.
  • David Shaw first reported a position in Generation Bio in Q4 2020 and held it in 17 quarters.
  • David Shaw's Generation Bio position peaked at $3.81M in Q1 2021.
  • 79 funds tracked by Wall St. Rank held Generation Bio as of Q1 2025.

Based on D.E. Shaw & Co's 13F filing for Q1 2025, filed 15 May 2025.