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
2015 Q4	–	Sell	-100,000	Closed	-$2.79M	–	170
2015 Q3	$2.79M	Buy	+100,000	New	+$3.61M	0.22%	69
2015 Q2	–	Sell	-100,000	Closed	-$3.04M	–	186
2015 Q1	$3.04M	Hold	100,000	–	–	0.24%	73
2014 Q4	$1.98M	Buy	+100,000	New	+$2.24M	0.17%	89
2014 Q2	–	Sell	-45,000	Closed	-$579K	–	136
2014 Q1	$579K	Sell	45,000 -120,000	-73%	-$1.72M	0.06%	93
2013 Q4	$2.25M	Buy	165,000 +96,700	+142%	+$1.15M	0.27%	48
2013 Q3	$757K	Buy	+68,300	New	+$680K	0.06%	77

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.