Aigen Investment Management’s Repligen RGEN Stock Holding History

Aigen 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
2024 Q4	–	Sell	-3,275	Closed	-$487K	–	954
2024 Q3	$487K	Sell	3,275 -4,106	-56%	-$589K	0.1%	330
2024 Q2	$930K	Buy	+7,381	New	+$1.16M	0.18%	154
2024 Q1	–	Sell	-1,547	Closed	-$278K	–	957
2023 Q4	$278K	Buy	+1,547	New	+$241K	0.05%	521
2022 Q3	–	Sell	-2,099	Closed	-$341K	–	727
2022 Q2	$341K	Buy	+2,099	New	+$332K	0.06%	375
2021 Q3	–	Sell	-1,439	Closed	-$287K	–	628
2021 Q2	$287K	Buy	+1,439	New	+$279K	0.05%	345
2021 Q1	–	Sell	-2,876	Closed	-$551K	–	841
2020 Q4	$551K	Buy	+2,876	New	+$523K	0.07%	359
2020 Q1	–	Sell	-2,451	Closed	-$227K	–	1509
2019 Q4	$227K	Buy	+2,451	New	+$206K	0.04%	515

Other funds holding RGEN

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

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

CIP

Champlain Investment Partners Burlington, Vermont $3.89B AUM 16.15% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $26.9B AUM 34.44% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Macquarie Group Sydney, NSW 2000, Australia $23.2B AUM 40.19% 1-Year Est. Return

Impax Asset Management Group London, United Kingdom $15.4B AUM 26.43% 1-Year Est. Return

Aigen Investment Management's RGEN Position: Q4 2024 in Review

Aigen Investment Management sold out of Repligen (RGEN) in Q4 2024, closing a stake of 3,275 shares — an estimated $487K sold.

Aigen Investment Management first reported a position in RGEN in Q4 2019 and held it in 7 quarters. The position peaked at $930K in Q2 2024. 431 funds tracked by Wall St. Rank hold RGEN as of Q4 2024.

Aigen Investment Management reported no remaining Repligen position as of Q4 2024 after selling out during the quarter.
Aigen Investment Management sold 3,275 Repligen shares in Q4 2024, an estimated $487K.
Aigen Investment Management first reported a position in Repligen in Q4 2019 and held it in 7 quarters.
Aigen Investment Management's Repligen position peaked at $930K in Q2 2024.
431 funds tracked by Wall St. Rank held Repligen as of Q4 2024.

Based on Aigen Investment Management's 13F filing for Q4 2024, filed 6 Feb 2025.