Morgan Stanley’s Generation Bio GBIO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-161,378
Closed -$917K 8368
2025
Q4
$917K Sell
161,378
-2,892
-2% -$16.3K ﹤0.01% 5229
2025
Q3
$1.01M Buy
164,270
+72,987
+80% +$378K ﹤0.01% 5177
2025
Q2
$292K Buy
91,283
+3,389
+4% +$13.1K ﹤0.01% 5697
2025
Q1
$356K Sell
87,894
-6,089
-6% -$42.8K ﹤0.01% 5487
2024
Q4
$996K Sell
93,983
-5,984
-6% -$107K ﹤0.01% 5093
2024
Q3
$2.47M Buy
99,967
+6,327
+7% +$167K ﹤0.01% 4497
2024
Q2
$2.64M Sell
93,640
-538
-0.6% -$17.5K ﹤0.01% 4373
2024
Q1
$3.83M Sell
94,178
-118,635
-56% -$2.79M ﹤0.01% 4125
2023
Q4
$3.51M Buy
212,813
+162,516
+323% +$2.83M ﹤0.01% 4601
2023
Q3
$1.91M Sell
50,297
-2,125
-4% -$101K ﹤0.01% 4419
2023
Q2
$2.88M Buy
52,422
+1,043
+2% +$47.9K ﹤0.01% 4180
2023
Q1
$2.21M Buy
51,379
+2,181
+4% +$105K ﹤0.01% 4398
2022
Q4
$1.93M Buy
49,198
+510
+1% +$26.8K ﹤0.01% 4494
2022
Q3
$2.58M Buy
48,688
+28,306
+139% +$1.77M ﹤0.01% 4254
2022
Q2
$1.34M Sell
20,382
-953
-4% -$62.3K ﹤0.01% 4823
2022
Q1
$1.57M Sell
21,335
-3,080
-13% -$178K ﹤0.01% 4689
2021
Q4
$1.73M Buy
24,415
+735
+3% +$128K ﹤0.01% 4683
2021
Q3
$5.94M Sell
23,680
-1,751
-7% -$419K ﹤0.01% 3491
2021
Q2
$6.84M Buy
25,431
+25,368
+40,267% +$7.59M ﹤0.01% 3435
2021
Q1
$18K Sell
63
-844
-93% -$270K ﹤0.01% 6752
2020
Q4
$257K Buy
907
+715
+372% +$229K ﹤0.01% 5462
2020
Q3
$59K Buy
+192
New +$45.9K ﹤0.01% 5663

Other funds holding GBIO

Morgan Stanley's GBIO Position: Q1 2026 in Review

Morgan Stanley sold out of Generation Bio (GBIO) in Q1 2026, closing a stake of 161,378 shares — an estimated $917K sold.

Morgan Stanley first reported a position in GBIO in Q3 2020 and held it in 22 quarters. The position peaked at $6.84M in Q2 2021. 2 funds tracked by Wall St. Rank hold GBIO as of Q1 2026.

  • Morgan Stanley reported no remaining Generation Bio position as of Q1 2026 after selling out during the quarter.
  • Morgan Stanley sold 161,378 Generation Bio shares in Q1 2026, an estimated $917K.
  • Morgan Stanley first reported a position in Generation Bio in Q3 2020 and held it in 22 quarters.
  • Morgan Stanley's Generation Bio position peaked at $6.84M in Q2 2021.
  • 2 funds tracked by Wall St. Rank held Generation Bio as of Q1 2026.

Based on Morgan Stanley's 13F filing for Q1 2026, filed 15 May 2026.