Holocene Advisors’s Repligen RGEN Stock Holding History

Holocene 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	$83.5M	Sell	708,889 -252,151	-26%	-$35.2M	0.2%	128
2025 Q4	$157M	Sell	961,040 -416,064	-30%	-$65.2M	0.33%	82
2025 Q3	$184M	Buy	1,377,104 +440,290	+47%	+$53.5M	0.42%	55
2025 Q2	$117M	Sell	936,814 -23,168	-2%	-$2.95M	0.28%	95
2025 Q1	$122M	Buy	959,982 +648,878	+209%	+$99.9M	0.36%	82
2024 Q4	$44.8M	Buy	+311,104	New	+$44.6M	0.14%	172
2024 Q2	–	Sell	-342,388	Closed	-$63M	–	827
2024 Q1	$63M	Buy	342,388 +37,474	+12%	+$7.14M	0.23%	137
2023 Q4	$54.8M	Buy	+304,914	New	+$47.5M	0.21%	143
2021 Q3	–	Sell	-256,780	Closed	-$51.3M	–	949
2021 Q2	$51.3M	Buy	256,780 +76,048	+42%	+$14.8M	0.29%	119
2021 Q1	$35.1M	Sell	180,732 -49,745	-22%	-$10.2M	0.22%	132
2020 Q4	$44.2M	Sell	230,477 -58,362	-20%	-$10.6M	0.28%	127
2020 Q3	$42.6M	Buy	+288,839	New	+$41.3M	0.32%	96
2018 Q2	–	Sell	-6,547	Closed	-$237K	–	704
2018 Q1	$237K	Buy	+6,547	New	+$230K	0.01%	477

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

Holocene Advisors's RGEN Position: Q1 2026 in Review

Holocene Advisors reduced its Repligen (RGEN) stake by 26% in Q1 2026, selling an estimated $35.2M and leaving 708,889 shares worth $83.5M. The position accounts for 0.2% of the portfolio, ranked #128.

Holocene Advisors first reported a position in RGEN in Q1 2018 and has held it in 13 quarters since. The position peaked at $184M in Q3 2025. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

Holocene Advisors held 708,889 shares of Repligen worth $83.5M as of Q1 2026.
Holocene Advisors sold 252,151 Repligen shares in Q1 2026, an estimated $35.2M.
Repligen made up 0.2% of Holocene Advisors's portfolio in Q1 2026, its #128 holding.
Holocene Advisors first reported a position in Repligen in Q1 2018 and has held it in 13 quarters since.
Holocene Advisors's Repligen position peaked at $184M in Q3 2025.
441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

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