Marco Investment Management’s Repligen RGEN Stock Holding History

Marco Investment 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 Q2	$229K	Buy	+1,675	New	+$206K	0.02%	228
2026 Q1	–	Sell	-1,255	Closed	-$206K	–	238
2025 Q4	$206K	Buy	+1,255	New	+$197K	0.02%	222
2021 Q4	–	Sell	-970	Closed	-$280K	–	227
2021 Q3	$280K	Sell	970 -250	-20%	-$64.1K	0.03%	182
2021 Q2	$244K	Sell	1,220 -40	-3%	-$7.76K	0.03%	183
2021 Q1	$245K	Sell	1,260 -200	-14%	-$41K	0.03%	176
2020 Q4	$280K	Sell	1,460 -240	-14%	-$43.7K	0.04%	158
2020 Q3	$251K	Hold	1,700	–	–	0.04%	150
2020 Q2	$210K	Sell	1,700 -375	-18%	-$44.1K	0.04%	158
2020 Q1	$200K	Buy	+2,075	New	+$200K	0.04%	151
2019 Q3	–	Sell	-2,675	Closed	-$230K	–	178
2019 Q2	$230K	Buy	+2,675	New	+$182K	0.04%	162

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 $3.37T AUM 44.26% 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

Marco Investment Management's RGEN Position: Q2 2026 in Review

Marco Investment Management opened a new position in Repligen (RGEN) in Q2 2026: 1,675 shares worth $229K. The stake represents 0.02% of the portfolio and ranks #228 among its holdings. This is a return to the name: Marco Investment Management previously reported a position in RGEN as recently as Q4 2025.

Marco Investment Management first reported a position in RGEN in Q2 2019 and has held it in 10 quarters since. The position peaked at $280K in Q3 2021. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

Marco Investment Management held 1,675 shares of Repligen worth $229K as of Q2 2026.
Repligen was a new Marco Investment Management position in Q2 2026.
Repligen made up 0.02% of Marco Investment Management's portfolio in Q2 2026, its #228 holding.
Marco Investment Management first reported a position in Repligen in Q2 2019 and has held it in 10 quarters since.
Marco Investment Management's Repligen position peaked at $280K in Q3 2021.
482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Marco Investment Management's 13F filing for Q2 2026, filed 3 Aug 2026.