JFG
GBIO

Jefferies Financial Group’s Generation Bio GBIO Stock Holding History

Jefferies Financial Group’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
Q2 		– Sell
-17,366
Closed -$70.3K – 1502
2025
Q1 		$70.3K Sell
17,366
-208,816
-92% -$1.47M ﹤0.01% 1499
2024
Q4 		$2.4M Buy
+226,182
New +$4.03M 0.01% 609
2023
Q2 		– Sell
-5,500
Closed -$237K – 1811
2023
Q1 		$237K Buy
+5,500
New +$266K ﹤0.01% 1308

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
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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 $17.4B AUM 131.5% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Jefferies Financial Group's GBIO Position: Q2 2025 in Review

Jefferies Financial Group sold out of Generation Bio (GBIO) in Q2 2025, closing a stake of 17,366 shares — an estimated $70.3K sold.

Jefferies Financial Group first reported a position in GBIO in Q1 2023 and held it in 3 quarters. The position peaked at $2.4M in Q4 2024. 61 funds tracked by Wall St. Rank hold GBIO as of Q2 2025.

  • Jefferies Financial Group reported no remaining Generation Bio position as of Q2 2025 after selling out during the quarter.
  • Jefferies Financial Group sold 17,366 Generation Bio shares in Q2 2025, an estimated $70.3K.
  • Jefferies Financial Group first reported a position in Generation Bio in Q1 2023 and held it in 3 quarters.
  • Jefferies Financial Group's Generation Bio position peaked at $2.4M in Q4 2024.
  • 61 funds tracked by Wall St. Rank held Generation Bio as of Q2 2025.

Based on Jefferies Financial Group's 13F filing for Q2 2025, filed 12 Aug 2025.