Platinum Investment Management’s Gossamer Bio GOSS Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-561,951	Closed	-$1.74M	–	105
2025 Q4	$1.74M	Sell	561,951 -202,214	-26%	-$577K	0.4%	69
2025 Q3	$2.01M	Sell	764,165 -619,698	-45%	-$1.37M	0.13%	67
2025 Q2	$1.7M	Sell	1,383,863 -347,492	-20%	-$379K	0.11%	60
2025 Q1	$1.9M	Sell	1,731,355 -1,448,940	-46%	-$1.67M	0.11%	54
2024 Q4	$2.88M	Sell	3,180,295 -344,613	-10%	-$295K	0.17%	53
2024 Q3	$3.48M	Hold	3,524,908	–	–	0.16%	52
2024 Q2	$3.18M	Sell	3,524,908 -1,169,157	-25%	-$875K	0.13%	49
2024 Q1	$5.54M	Sell	4,694,065 -2,260,045	-32%	-$2.49M	0.22%	38
2023 Q4	$6.35M	Buy	6,954,110 +1,596,332	+30%	+$1.18M	0.26%	52
2023 Q3	$4.46M	Buy	5,357,778 +2,994,608	+127%	+$3.45M	0.17%	53
2023 Q2	$2.84M	Hold	2,363,170	–	–	0.1%	72
2023 Q1	$2.98M	Buy	+2,363,170	New	+$4.52M	0.1%	71