Millennium Management’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 |
-88,563
| Closed | -$503K | – | 5940 |
|
|
2025
Q4 | $503K | Sell |
88,563
-8,791
| -9% | -$49.7K | ﹤0.01% | 4937 |
|
|
2025
Q3 | $596K | Sell |
97,354
-8,807
| -8% | -$45.6K | ﹤0.01% | 4965 |
|
|
2025
Q2 | $340K | Buy |
+106,161
| New | +$409K | ﹤0.01% | 5131 |
|
|
2025
Q1 | – | Sell |
-9,158
| Closed | -$97.1K | – | 6041 |
|
|
2024
Q4 | $97.1K | Buy |
+9,158
| New | +$163K | ﹤0.01% | 5480 |
|
|
2024
Q3 | – | Sell |
-9,795
| Closed | -$276K | – | 6226 |
|
|
2024
Q2 | $276K | Sell |
9,795
-12,479
| -56% | -$406K | ﹤0.01% | 4960 |
|
|
2024
Q1 | $907K | Sell |
22,274
-53,001
| -70% | -$1.25M | ﹤0.01% | 4378 |
|
|
2023
Q4 | $1.24M | Buy |
75,275
+72,208
| +2,354% | +$1.26M | ﹤0.01% | 3982 |
|
|
2023
Q3 | $116K | Buy |
3,067
+148
| +5% | +$7.01K | ﹤0.01% | 5296 |
|
|
2023
Q2 | $161K | Sell |
2,919
-1,013
| -26% | -$46.5K | ﹤0.01% | 5203 |
|
|
2023
Q1 | $169K | Buy |
3,932
+1,340
| +52% | +$64.8K | ﹤0.01% | 5238 |
|
|
2022
Q4 | $102K | Buy |
2,592
+1,557
| +150% | +$81.8K | ﹤0.01% | 5576 |
|
|
2022
Q3 | $55K | Sell |
1,035
-6,021
| -85% | -$377K | ﹤0.01% | 6153 |
|
|
2022
Q2 | $463K | Buy |
+7,056
| New | +$461K | ﹤0.01% | 5015 |
|
|
2022
Q1 | – | Sell |
-53,839
| Closed | -$3.81M | – | 7093 |
|
|
2021
Q4 | $3.81M | Buy |
+53,839
| New | +$9.4M | ﹤0.01% | 3168 |
|
|
2021
Q3 | – | Sell |
-3,744
| Closed | -$1.01M | – | 6939 |
|
|
2021
Q2 | $1.01M | Buy |
+3,744
| New | +$1.12M | ﹤0.01% | 4660 |
|
|
2021
Q1 | – | Sell |
-3,426
| Closed | -$971K | – | 6125 |
|
|
2020
Q4 | $971K | Buy |
+3,426
| New | +$1.1M | ﹤0.01% | 3758 |
|
|
2020
Q3 | – | Sell |
-26,241
| Closed | -$5.51M | – | 4580 |
|
|
2020
Q2 | $5.51M | Buy |
+26,241
| New | +$5.85M | 0.01% | 1680 |
|
Other funds holding GBIO
Millennium Management's GBIO Position: Q1 2026 in Review
Millennium Management sold out of Generation Bio (GBIO) in Q1 2026, closing a stake of 88,563 shares — an estimated $503K sold.
Millennium Management first reported a position in GBIO in Q2 2020 and held it in 17 quarters. The position peaked at $5.51M in Q2 2020. 2 funds tracked by Wall St. Rank hold GBIO as of Q1 2026.
- Millennium Management reported no remaining Generation Bio position as of Q1 2026 after selling out during the quarter.
- Millennium Management sold 88,563 Generation Bio shares in Q1 2026, an estimated $503K.
- Millennium Management first reported a position in Generation Bio in Q2 2020 and held it in 17 quarters.
- Millennium Management's Generation Bio position peaked at $5.51M in Q2 2020.
- 2 funds tracked by Wall St. Rank held Generation Bio as of Q1 2026.
Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.