Octagon Capital Advisors’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	$2.55M	Sell	7,750,000 -6,165,371	-44%	-$9.69M	0.28%	29
2025 Q4	$43.1M	Sell	13,915,371 -3,134,629	-18%	-$8.94M	5.24%	5
2025 Q3	$44.8M	Sell	17,050,000 -1,300,000	-7%	-$2.87M	6.8%	3
2025 Q2	$22.6M	Hold	18,350,000	–	–	4.95%	6
2025 Q1	$20.2M	Hold	18,350,000	–	–	3.91%	7
2024 Q4	$16.6M	Buy	18,350,000 +9,162,117	+100%	+$7.85M	2.73%	15
2024 Q3	$9.06M	Hold	9,187,883	–	–	1.41%	20
2024 Q2	$8.28M	Hold	9,187,883	–	–	1.3%	20
2024 Q1	$10.8M	Hold	9,187,883	–	–	1.3%	24
2023 Q4	$8.38M	Buy	9,187,883 +1,000,000	+12%	+$739K	1.34%	19
2023 Q3	$6.82M	Buy	8,187,883 +4,229,814	+107%	+$4.87M	1.05%	20
2023 Q2	$4.75M	Buy	3,958,069 +2,000,000	+102%	+$2.49M	0.66%	28
2023 Q1	$2.47M	Hold	1,958,069	–	–	0.36%	30
2022 Q4	$4.25M	Sell	1,958,069 -87,373	-4%	-$719K	0.66%	24
2022 Q3	$24.5M	Sell	2,045,442 -712,627	-26%	-$8.85M	4.23%	5
2022 Q2	$23.1M	Buy	2,758,069 +194,931	+8%	+$1.51M	6.16%	5
2022 Q1	$22.2M	Buy	2,563,138 +1,050,000	+69%	+$10.1M	4.81%	6
2021 Q4	$17.1M	Hold	1,513,138	–	–	3.33%	11
2021 Q3	$19M	Buy	1,513,138 +100,000	+7%	+$921K	4.68%	7
2021 Q2	$11.5M	Hold	1,413,138	–	–	2.38%	14
2021 Q1	$13.1M	Sell	1,413,138 -150,000	-10%	-$1.51M	4.92%	6
2020 Q4	$15.1M	Buy	+1,563,138	New	+$15.4M	5.24%	8