Marshall Wace
RGEN icon

Marshall Wace’s Repligen RGEN Stock Holding History

Marshall Wace’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 		$38.5M Buy
+282,107
New +$34.7M 0.03% 472
2026
Q1 		– Sell
-516,336
Closed -$84.6M – 3612
2025
Q4 		$84.6M Buy
516,336
+335,273
+185% +$52.5M 0.08% 210
2025
Q3 		$24.2M Buy
181,063
+96,868
+115% +$11.8M 0.02% 572
2025
Q2 		$10.5M Sell
84,195
-573
-0.7% -$72.9K 0.01% 818
2025
Q1 		$10.8M Sell
84,768
-327,467
-79% -$50.4M 0.01% 745
2024
Q4 		$59.3M Buy
412,235
+175,013
+74% +$25.1M 0.07% 254
2024
Q3 		$35.3M Sell
237,222
-127,329
-35% -$18.3M 0.04% 357
2024
Q2 		$46M Buy
364,551
+3,864
+1% +$606K 0.06% 282
2024
Q1 		$66.3M Buy
360,687
+39,910
+12% +$7.6M 0.1% 196
2023
Q4 		$57.7M Sell
320,777
-13,502
-4% -$2.1M 0.1% 211
2023
Q3 		$53.2M Sell
334,279
-115,209
-26% -$18.8M 0.11% 195
2023
Q2 		$63.6M Buy
449,488
+263,259
+141% +$42.2M 0.12% 176
2023
Q1 		$31.4M Buy
186,229
+123,078
+195% +$22M 0.07% 314
2022
Q4 		$10.7M Sell
63,151
-131,164
-68% -$23.8M 0.02% 756
2022
Q3 		$36.4M Sell
194,315
-178,562
-48% -$37.7M 0.08% 283
2022
Q2 		$60.6M Buy
372,877
+8,630
+2% +$1.36M 0.12% 166
2022
Q1 		$68.5M Sell
364,247
-10,386
-3% -$1.97M 0.13% 163
2021
Q4 		$99.2M Sell
374,633
-145,497
-28% -$39.2M 0.18% 100
2021
Q3 		$150M Sell
520,130
-182,784
-26% -$46.9M 0.62% 15
2021
Q2 		$140M Sell
702,914
-240,810
-26% -$46.7M 0.63% 14
2021
Q1 		$183M Sell
943,724
-537,556
-36% -$110M 0.84% 12
2020
Q4 		$284M Buy
1,481,280
+573,604
+63% +$104M 1.54% 5
2020
Q3 		$134M Buy
907,676
+264,563
+41% +$37.8M 0.86% 17
2020
Q2 		$79.5M Buy
643,113
+78,601
+14% +$9.25M 0.56% 29
2020
Q1 		$54.5M Buy
+564,512
New +$54.5M 0.54% 32
2019
Q4 		– Sell
-6,385
Closed -$490K – 2003
2019
Q3 		$490K Sell
6,385
-103,501
-94% -$9.05M ﹤0.01% 1112
2019
Q2 		$9.45M Buy
+109,886
New +$7.49M 0.08% 295
2019
Q1 		– Sell
-4,165
Closed -$219K – 2009
2018
Q4 		$219K Buy
+4,165
New +$244K ﹤0.01% 1266
2017
Q1 		– Sell
-339,257
Closed -$10.5M – 667
2016
Q4 		$10.5M Sell
339,257
-16,641
-5% -$515K 0.07% 323
2016
Q3 		$10.7M Buy
355,898
+283,746
+393% +$8.56M 0.08% 270
2016
Q2 		$1.97M Buy
+72,152
New +$1.84M 0.02% 592
2015
Q2 		– Sell
-116,524
Closed -$3.54M – 1024
2015
Q1 		$3.54M Sell
116,524
-154,481
-57% -$4.01M 0.05% 380
2014
Q4 		$5.37M Buy
271,005
+64,764
+31% +$1.45M 0.07% 294
2014
Q3 		$4.11M Buy
206,241
+30,220
+17% +$636K 0.06% 322
2014
Q2 		$4.01M Buy
+176,021
New +$3.13M 0.06% 296

Other funds holding RGEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
MC
Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Marshall Wace's RGEN Position: Q2 2026 in Review

Marshall Wace opened a new position in Repligen (RGEN) in Q2 2026: 282,107 shares worth $38.5M. The stake represents 0.03% of the portfolio and ranks #472 among its holdings. This is a return to the name: Marshall Wace previously reported a position in RGEN as recently as Q4 2025.

Marshall Wace first reported a position in RGEN in Q2 2014 and has held it in 35 quarters since. The position peaked at $284M in Q4 2020. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Marshall Wace held 282,107 shares of Repligen worth $38.5M as of Q2 2026.
  • Repligen was a new Marshall Wace position in Q2 2026.
  • Repligen made up 0.03% of Marshall Wace's portfolio in Q2 2026, its #472 holding.
  • Marshall Wace first reported a position in Repligen in Q2 2014 and has held it in 35 quarters since.
  • Marshall Wace's Repligen position peaked at $284M in Q4 2020.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.