1832 Asset Management’s Repligen RGEN Stock Holding History

1832 Asset 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 Q3	$17.3M	Buy	+90,200	New	+$14.7M	0.01%	294
2022 Q4	–	Sell	-545,500	Closed	-$102M	–	957
2022 Q3	$102M	Buy	545,500 +476,200	+687%	+$100M	0.19%	106
2022 Q2	$11.3M	Sell	69,300 -373,200	-84%	-$59M	0.02%	351
2022 Q1	$82.2M	Sell	442,500 -228,700	-34%	-$43.4M	0.12%	152
2021 Q4	$174M	Sell	671,200 -58,800	-8%	-$15.8M	0.31%	84
2021 Q3	$206M	Hold	730,000	–	–	0.39%	75
2021 Q2	$146M	Hold	730,000	–	–	0.28%	97
2021 Q1	$136M	Hold	730,000	–	–	0.29%	90
2020 Q4	$136M	Buy	730,000 +3,400	+0.5%	+$619K	0.32%	82
2020 Q3	$108M	Hold	726,600	–	–	0.28%	94
2020 Q2	$85.1M	Sell	726,600 -1,800	-0.2%	-$212K	0.26%	105
2020 Q1	$68.4M	Hold	728,400	–	–	0.25%	94
2019 Q4	$65.9M	Sell	728,400 -91,200	-11%	-$7.66M	0.2%	104
2019 Q3	$61.4M	Buy	819,600 +139,100	+20%	+$12.2M	0.2%	107
2019 Q2	$55.8M	Buy	+680,500	New	+$46.4M	0.18%	116

Other funds holding RGEN

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $296B AUM 23.14% 1-Year Est. Return

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Stephens Investment Management Group Houston, Texas $9.29B AUM 41.16% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

1832 Asset Management's RGEN Position: Q3 2026 in Review

1832 Asset Management opened a new position in Repligen (RGEN) in Q3 2026: 90,200 shares worth $17.3M. The stake represents 0.01% of the portfolio and ranks #294 among its holdings. This is a return to the name: 1832 Asset Management previously reported a position in RGEN as recently as Q3 2022.

1832 Asset Management first reported a position in RGEN in Q2 2019 and has held it in 15 quarters since. The position peaked at $206M in Q3 2021. 315 funds tracked by Wall St. Rank hold RGEN as of Q3 2026.

1832 Asset Management held 90,200 shares of Repligen worth $17.3M as of Q3 2026.
Repligen was a new 1832 Asset Management position in Q3 2026.
Repligen made up 0.01% of 1832 Asset Management's portfolio in Q3 2026, its #294 holding.
1832 Asset Management first reported a position in Repligen in Q2 2019 and has held it in 15 quarters since.
1832 Asset Management's Repligen position peaked at $206M in Q3 2021.
315 funds tracked by Wall St. Rank held Repligen as of Q3 2026.

Based on 1832 Asset Management's 13F filing for Q3 2026, filed 10 Nov 2026.