Mangrove Partners’s Repligen RGEN Stock Holding History

Mangrove Partners’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 Q2	–	Sell	-4,390	Closed	-$517K	–	560
2026 Q1	$517K	Buy	+4,390	New	+$613K	0.04%	190

Other funds holding RGEN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

UCFA

United Capital Financial Advisors Irving, Texas $18.2B AUM 22.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Mangrove Partners's RGEN Position: Q2 2026 in Review

Mangrove Partners sold out of Repligen (RGEN) in Q2 2026, closing a stake of 4,390 shares — an estimated $517K sold.

Mangrove Partners first reported a position in RGEN in Q1 2026 and held it in 1 quarter. The position peaked at $517K in Q1 2026. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

Mangrove Partners reported no remaining Repligen position as of Q2 2026 after selling out during the quarter.
Mangrove Partners sold 4,390 Repligen shares in Q2 2026, an estimated $517K.
Mangrove Partners first reported a position in Repligen in Q1 2026 and held it in 1 quarter.
Mangrove Partners's Repligen position peaked at $517K in Q1 2026.
482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Mangrove Partners's 13F filing for Q2 2026, filed 14 Aug 2026.