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North Star Asset Management’s Repligen RGEN Stock Holding History

North Star 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
Q1 		$9.89M Sell
83,963
-940
-1% -$131K 0.43% 74
2025
Q4 		$13.9M Sell
84,903
-536
-0.6% -$84K 0.56% 56
2025
Q3 		$11.4M Sell
85,439
-2,163
-2% -$263K 0.46% 69
2025
Q2 		$10.9M Sell
87,602
-2,191
-2% -$279K 0.46% 73
2025
Q1 		$11.4M Sell
89,793
-334
-0.4% -$51.4K 0.52% 60
2024
Q4 		$13M Sell
90,127
-2,003
-2% -$287K 0.57% 60
2024
Q3 		$13.7M Sell
92,130
-1,594
-2% -$229K 0.62% 58
2024
Q2 		$11.8M Buy
93,724
+1,518
+2% +$238K 0.56% 61
2024
Q1 		$17M Buy
92,206
+550
+0.6% +$105K 0.8% 43
2023
Q4 		$16.5M Sell
91,656
-41
-0% -$6.38K 0.84% 41
2023
Q3 		$14.6M Buy
91,697
+375
+0.4% +$61.3K 0.84% 40
2023
Q2 		$12.9M Buy
91,322
+2,326
+3% +$373K 0.71% 48
2023
Q1 		$15M Buy
88,996
+1,916
+2% +$342K 0.88% 42
2022
Q4 		$14.7M Buy
87,080
+2,544
+3% +$461K 0.92% 39
2022
Q3 		$15.8M Buy
84,536
+1,413
+2% +$298K 1.08% 34
2022
Q2 		$13.5M Buy
83,123
+435
+0.5% +$68.8K 0.89% 43
2022
Q1 		$15.6M Buy
82,688
+1,145
+1% +$218K 0.86% 40
2021
Q4 		$21.6M Sell
81,543
-1,998
-2% -$538K 1.09% 32
2021
Q3 		$24.1M Sell
83,541
-6,082
-7% -$1.56M 1.33% 25
2021
Q2 		$17.9M Sell
89,623
-842
-0.9% -$163K 0.99% 34
2021
Q1 		$17.6M Sell
90,465
-5,640
-6% -$1.16M 1.05% 32
2020
Q4 		$18.4M Sell
96,105
-2,628
-3% -$478K 1.16% 28
2020
Q3 		$14.6M Sell
98,733
-8,272
-8% -$1.18M 1.07% 34
2020
Q2 		$13.2M Sell
107,005
-17,494
-14% -$2.06M 1.05% 35
2020
Q1 		$12M Sell
124,499
-5,870
-5% -$567K 1.16% 28
2019
Q4 		$12.1M Sell
130,369
-3,736
-3% -$314K 0.87% 41
2019
Q3 		$10.3M Sell
134,105
-9,849
-7% -$861K 0.81% 43
2019
Q2 		$12.4M Sell
143,954
-3,530
-2% -$241K 0.97% 37
2019
Q1 		$8.71M Buy
147,484
+2,140
+1% +$123K 0.71% 51
2018
Q4 		$7.67M Sell
145,344
-4,847
-3% -$284K 0.73% 50
2018
Q3 		$8.33M Sell
150,191
-20,794
-12% -$1.07M 0.67% 56
2018
Q2 		$8.04M Sell
170,985
-290
-0.2% -$11.9K 0.69% 54
2018
Q1 		$6.2M Buy
171,275
+61,630
+56% +$2.17M 0.56% 67
2017
Q4 		$3.98M Buy
109,645
+84,486
+336% +$3.06M 0.36% 83
2017
Q3 		$964K Buy
25,159
+4,610
+22% +$193K 0.1% 149
2017
Q2 		$852K Buy
20,549
+5,040
+32% +$192K 0.09% 156
2017
Q1 		$546K Buy
+15,509
New +$491K 0.06% 167

Other funds holding RGEN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $8.67B AUM 48.76% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

North Star Asset Management's RGEN Position: Q1 2026 in Review

North Star Asset Management reduced its Repligen (RGEN) stake by 1.1% in Q1 2026, selling an estimated $131K and leaving 83,963 shares worth $9.89M. The position accounts for 0.43% of the portfolio, ranked #74.

North Star Asset Management first reported a position in RGEN in Q1 2017 and has held it in 37 quarters since. The position peaked at $24.1M in Q3 2021. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • North Star Asset Management held 83,963 shares of Repligen worth $9.89M as of Q1 2026.
  • North Star Asset Management sold 940 Repligen shares in Q1 2026, an estimated $131K.
  • Repligen made up 0.43% of North Star Asset Management's portfolio in Q1 2026, its #74 holding.
  • North Star Asset Management first reported a position in Repligen in Q1 2017 and has held it in 37 quarters since.
  • North Star Asset Management's Repligen position peaked at $24.1M in Q3 2021.
  • 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on North Star Asset Management's 13F filing for Q1 2026, filed 6 May 2026.