Perceptive Advisors’s Repligen RGEN Stock Holding History

Perceptive Advisors’s Portfolio RGEN Stock Details RGEN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$33.1M	Sell	280,541 -35,000	-11%	-$4.89M	0.65%	36
2025 Q4	$51.7M	Buy	315,541 +45,113	+17%	+$7.07M	0.92%	33
2025 Q3	$36.1M	Buy	270,428 +104,428	+63%	+$12.7M	1.04%	28
2025 Q2	$20.6M	Buy	166,000 +36,199	+28%	+$4.61M	0.77%	37
2025 Q1	$16.5M	Buy	+129,801	New	+$20M	0.58%	39
2021 Q3	–	Sell	-132,500	Closed	-$26.4M	–	154
2021 Q2	$26.4M	Buy	+132,500	New	+$25.7M	0.34%	71
2021 Q1	–	Sell	-97,500	Closed	-$18.7M	–	158
2020 Q4	$18.7M	Buy	+97,500	New	+$17.7M	0.2%	88
2017 Q4	–	Sell	-87,400	Closed	-$3.35M	–	149
2017 Q3	$3.35M	Buy	+87,400	New	+$3.66M	0.13%	81

Other funds holding RGEN

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

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

UCFA

United Capital Financial Advisors Irving, Texas $16.3B AUM 16.34% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Maverick Capital Dallas, Texas $8.67B AUM 48.76% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Perceptive Advisors's RGEN Position: Q1 2026 in Review

Perceptive Advisors reduced its Repligen (RGEN) stake by 11% in Q1 2026, selling an estimated $4.89M and leaving 280,541 shares worth $33.1M. The position accounts for 0.65% of the portfolio, ranked #36.

Perceptive Advisors first reported a position in RGEN in Q3 2017 and has held it in 8 quarters since. The position peaked at $51.7M in Q4 2025. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

Perceptive Advisors held 280,541 shares of Repligen worth $33.1M as of Q1 2026.
Perceptive Advisors sold 35,000 Repligen shares in Q1 2026, an estimated $4.89M.
Repligen made up 0.65% of Perceptive Advisors's portfolio in Q1 2026, its #36 holding.
Perceptive Advisors first reported a position in Repligen in Q3 2017 and has held it in 8 quarters since.
Perceptive Advisors's Repligen position peaked at $51.7M in Q4 2025.
441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on Perceptive Advisors's 13F filing for Q1 2026, filed 15 May 2026.