Tudor Investment Corp
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Tudor Investment Corp’s Repligen RGEN Stock Holding History

Tudor Investment Corp’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 		$3.5M Buy
+25,678
New +$3.15M ﹤0.01% 1532
2025
Q4 		– Sell
-129,522
Closed -$20.3M – 3963
2025
Q3 		$17.3M Buy
129,522
+76,767
+146% +$9.32M 0.03% 502
2025
Q2 		$6.56M Buy
+52,755
New +$6.71M 0.01% 920
2023
Q4 		– Sell
-5,123
Closed -$815K – 2810
2023
Q3 		$815K Buy
+5,123
New +$837K 0.01% 1412
2022
Q1 		– Sell
-1,606
Closed -$425K – 2563
2021
Q4 		$425K Buy
+1,606
New +$433K 0.01% 1590
2021
Q2 		– Sell
-4,759
Closed -$925K – 1884
2021
Q1 		$925K Sell
4,759
-2,063
-30% -$423K 0.02% 872
2020
Q4 		$1.31M Buy
+6,822
New +$1.24M 0.04% 588
2020
Q2 		– Sell
-7,051
Closed -$681K – 1379
2020
Q1 		$681K Buy
+7,051
New +$681K 0.06% 371
2019
Q2 		– Sell
-45,742
Closed -$2.7M – 1299
2019
Q1 		$2.7M Buy
45,742
+23,798
+108% +$1.37M 0.11% 197
2018
Q4 		$1.16M Buy
+21,944
New +$1.29M 0.02% 343
2017
Q3 		– Sell
-23,752
Closed -$984K – 1223
2017
Q2 		$984K Buy
+23,752
New +$903K 0.03% 342
2016
Q3 		– Sell
-13,444
Closed -$368K – 1676
2016
Q2 		$368K Buy
13,444
+3,954
+42% +$101K 0.01% 1041
2016
Q1 		$255K Sell
9,490
-3,320
-26% -$81.2K 0.01% 1382
2015
Q4 		$362K Buy
12,810
+3,279
+34% +$94.6K 0.01% 1118
2015
Q3 		$265K Buy
9,531
+2,035
+27% +$73.5K 0.01% 1183
2015
Q2 		$309K Sell
7,496
-2,600
-26% -$95.3K 0.01% 1082
2015
Q1 		$307K Buy
+10,096
New +$262K 0.01% 1040
2014
Q2 		– Sell
-24,627
Closed -$317K – 1291
2014
Q1 		$317K Buy
+24,627
New +$353K 0.01% 776

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 $3.38T AUM 44.17% 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

Tudor Investment Corp's RGEN Position: Q2 2026 in Review

Tudor Investment Corp opened a new position in Repligen (RGEN) in Q2 2026: 25,678 shares worth $3.5M. The stake represents ﹤0.01% of the portfolio and ranks #1532 among its holdings. This is a return to the name: Tudor Investment Corp previously reported a position in RGEN as recently as Q3 2025.

Tudor Investment Corp first reported a position in RGEN in Q1 2014 and has held it in 18 quarters since. The position peaked at $17.3M in Q3 2025. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Tudor Investment Corp held 25,678 shares of Repligen worth $3.5M as of Q2 2026.
  • Repligen was a new Tudor Investment Corp position in Q2 2026.
  • Repligen made up ﹤0.01% of Tudor Investment Corp's portfolio in Q2 2026, its #1532 holding.
  • Tudor Investment Corp first reported a position in Repligen in Q1 2014 and has held it in 18 quarters since.
  • Tudor Investment Corp's Repligen position peaked at $17.3M in Q3 2025.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Tudor Investment Corp's 13F filing for Q2 2026, filed 14 Aug 2026.