Millennium Management’s Repligen RGEN Stock Holding History

Millennium Management’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	$1.65M	Buy	+14,000	New	+$1.96M	﹤0.01%	4042
2025 Q1	–	Sell	-26,900	Closed	-$3.87M	–	6313
2024 Q4	$3.87M	Buy	26,900 +14,100	+110%	+$2.02M	﹤0.01%	3056
2024 Q3	$1.9M	Buy	12,800 +1,500	+13%	+$215K	﹤0.01%	3744
2024 Q2	$1.42M	Buy	11,300 +2,700	+31%	+$423K	﹤0.01%	3818
2024 Q1	$1.58M	Sell	8,600 -21,700	-72%	-$4.13M	﹤0.01%	3929
2023 Q4	$5.45M	Buy	30,300 +20,100	+197%	+$3.13M	﹤0.01%	2715
2023 Q3	$1.62M	Buy	+10,200	New	+$1.67M	﹤0.01%	3757
2022 Q4	–	Sell	-3,000	Closed	-$561K	–	6962
2022 Q3	$561K	Sell	3,000 -2,000	-40%	-$422K	﹤0.01%	4864
2022 Q2	$812K	Buy	+5,000	New	+$791K	﹤0.01%	4563
2021 Q4	–	Sell	-15,000	Closed	-$4.33M	–	7295
2021 Q3	$4.33M	Buy	+15,000	New	+$3.85M	﹤0.01%	3023

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

Millennium Management's RGEN Position: Q1 2026 in Review

Millennium Management reduced its Repligen (RGEN) stake by 97% in Q1 2026, selling an estimated $87.7M and leaving 22,461 shares worth $2.65M. The position accounts for ﹤0.01% of the portfolio, ranked #3601.

Millennium Management first reported a position in RGEN in Q2 2013 and has held it in 43 quarters since. The position peaked at $109M in Q3 2025. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

Millennium Management held 22,461 shares of Repligen worth $2.65M as of Q1 2026.
Millennium Management sold 628,085 Repligen shares in Q1 2026, an estimated $87.7M.
Repligen made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #3601 holding.
Millennium Management first reported a position in Repligen in Q2 2013 and has held it in 43 quarters since.
Millennium Management's Repligen position peaked at $109M in Q3 2025.
441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.