Avidity Partners Management’s Regeneron Pharmaceuticals REGN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	–	Sell	-25,400	Closed	-$16.1M	–	79
2025 Q1	$16.1M	Buy	25,400 +17,000	+202%	+$11.7M	3.32%	8
2024 Q4	$5.98M	Buy	+8,400	New	+$7.05M	0.6%	49
2024 Q3	–	Sell	-48,000	Closed	-$50.4M	–	99
2024 Q2	$50.4M	Sell	48,000 -20,000	-29%	-$19.4M	2.14%	13
2024 Q1	$65.4M	Hold	68,000	–	–	2.33%	14
2023 Q4	$59.7M	Buy	68,000 +10,000	+17%	+$8.23M	2.28%	14
2023 Q3	$47.7M	Buy	58,000 +33,200	+134%	+$26.1M	1.92%	16
2023 Q2	$17.8M	Sell	24,800 -94,300	-79%	-$72.7M	0.62%	56
2023 Q1	$97.9M	Buy	+119,100	New	+$89.8M	3.25%	6
2021 Q4	–	Sell	-152,300	Closed	-$92.2M	–	109
2021 Q3	$92.2M	Buy	+152,300	New	+$94.6M	2.35%	11
2020 Q3	–	Sell	-132,100	Closed	-$82.4M	–	84
2020 Q2	$82.4M	Buy	132,100 +82,100	+164%	+$46.6M	5.28%	2
2020 Q1	$24.4M	Buy	+50,000	New	+$20.6M	3.5%	6