PFM Health Sciences’s Generation Bio GBIO Stock Holding History

PFM Health Sciences’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	-78,791	Closed	-$835K	–	75
2024 Q4	$835K	Hold	78,791	–	–	0.05%	78
2024 Q3	$1.95M	Hold	78,791	–	–	0.11%	68
2024 Q2	$2.22M	Sell	78,791 -83,458	-51%	-$2.71M	0.11%	67
2024 Q1	$6.6M	Hold	162,249	–	–	0.31%	63
2023 Q4	$2.68M	Sell	162,249 -89,195	-35%	-$1.56M	0.16%	60
2023 Q3	$9.53M	Sell	251,444 -8,300	-3%	-$393K	0.45%	55
2023 Q2	$14.3M	Sell	259,744 -5,086	-2%	-$233K	0.55%	51
2023 Q1	$11.4M	Sell	264,830 -25,489	-9%	-$1.23M	0.5%	58
2022 Q4	$11.4M	Sell	290,319 -11,052	-4%	-$580K	0.41%	66
2022 Q3	$16M	Buy	301,371 +24,040	+9%	+$1.5M	0.58%	55
2022 Q2	$18.2M	Buy	277,331 +219,903	+383%	+$14.4M	0.69%	49
2022 Q1	$4.21M	Buy	+57,428	New	+$3.33M	0.16%	65

Other funds holding GBIO

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 Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

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

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

PFM Health Sciences's GBIO Position: Q1 2025 in Review

PFM Health Sciences sold out of Generation Bio (GBIO) in Q1 2025, closing a stake of 78,791 shares — an estimated $835K sold.

PFM Health Sciences first reported a position in GBIO in Q1 2022 and held it in 12 quarters. The position peaked at $18.2M in Q2 2022. 79 funds tracked by Wall St. Rank hold GBIO as of Q1 2025.

PFM Health Sciences reported no remaining Generation Bio position as of Q1 2025 after selling out during the quarter.
PFM Health Sciences sold 78,791 Generation Bio shares in Q1 2025, an estimated $835K.
PFM Health Sciences first reported a position in Generation Bio in Q1 2022 and held it in 12 quarters.
PFM Health Sciences's Generation Bio position peaked at $18.2M in Q2 2022.
79 funds tracked by Wall St. Rank held Generation Bio as of Q1 2025.

Based on PFM Health Sciences's 13F filing for Q1 2025, filed 15 May 2025.