Dark Forest Capital Management’s Repligen RGEN Stock Holding History

Dark Forest Capital 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	–	Sell	-8,425	Closed	-$1.38M	–	1082
2025 Q4	$1.38M	Buy	8,425 +5,431	+181%	+$851K	0.06%	535
2025 Q3	$400K	Sell	2,994 -4,407	-60%	-$535K	0.02%	975
2025 Q2	$921K	Buy	+7,401	New	+$942K	0.04%	765
2023 Q3	–	Sell	-4,248	Closed	-$601K	–	1279
2023 Q2	$601K	Buy	+4,248	New	+$681K	0.06%	558
2022 Q4	–	Sell	-2,663	Closed	-$498K	–	1435
2022 Q3	$498K	Buy	+2,663	New	+$562K	0.08%	247
2022 Q1	–	Sell	-23	Closed	-$6K	–	1684
2021 Q4	$6K	Buy	+23	New	+$6.2K	﹤0.01%	1106

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

Dark Forest Capital Management's RGEN Position: Q1 2026 in Review

Dark Forest Capital Management sold out of Repligen (RGEN) in Q1 2026, closing a stake of 8,425 shares — an estimated $1.38M sold.

Dark Forest Capital Management first reported a position in RGEN in Q4 2021 and held it in 6 quarters. The position peaked at $1.38M in Q4 2025. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

Dark Forest Capital Management reported no remaining Repligen position as of Q1 2026 after selling out during the quarter.
Dark Forest Capital Management sold 8,425 Repligen shares in Q1 2026, an estimated $1.38M.
Dark Forest Capital Management first reported a position in Repligen in Q4 2021 and held it in 6 quarters.
Dark Forest Capital Management's Repligen position peaked at $1.38M in Q4 2025.
441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

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