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Michael Gelband’s Repligen RGEN Stock Holding History

Michael Gelband’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 		$585K Sell
4,288
-35,940
-89% -$4.42M ﹤0.01% 1197
2026
Q1 		$4.74M Buy
+40,228
New +$5.62M 0.04% 454
2025
Q4 		– Sell
-64,531
Closed -$8.63M – 1977
2025
Q3 		$8.63M Sell
64,531
-427,226
-87% -$51.9M 0.09% 230
2025
Q2 		$61.2M Buy
491,757
+281,668
+134% +$35.8M 0.54% 25
2025
Q1 		$26.7M Sell
210,089
-3,629
-2% -$559K 0.26% 68
2024
Q4 		$30.8M Buy
213,718
+117,787
+123% +$16.9M 0.21% 77
2024
Q3 		$14.3M Buy
95,931
+65,138
+212% +$9.34M 0.09% 180
2024
Q2 		$3.88M Buy
+30,793
New +$4.83M 0.03% 502
2023
Q3 		– Sell
-12,287
Closed -$1.74M – 2064
2023
Q2 		$1.74M Sell
12,287
-26,635
-68% -$4.27M 0.01% 867
2023
Q1 		$6.55M Buy
38,922
+30,220
+347% +$5.39M 0.05% 419
2022
Q4 		$1.47M Sell
8,702
-39,300
-82% -$7.13M 0.02% 777
2022
Q3 		$8.98M Buy
48,002
+29,133
+154% +$6.14M 0.12% 233
2022
Q2 		$3.06M Buy
+18,869
New +$2.98M 0.04% 601
2022
Q1 		– Sell
-47,805
Closed -$12.7M – 2599
2021
Q4 		$12.7M Sell
47,805
-61,985
-56% -$16.7M 0.13% 150
2021
Q3 		$31.7M Buy
+109,790
New +$28.2M 0.43% 30
2021
Q2 		– Sell
-10,880
Closed -$2.12M – 2725
2021
Q1 		$2.12M Buy
10,880
+6,315
+138% +$1.29M 0.03% 553
2020
Q4 		$875K Buy
4,565
+1,809
+66% +$329K 0.01% 929
2020
Q3 		$407K Sell
2,756
-44,865
-94% -$6.41M 0.01% 1127
2020
Q2 		$5.89M Buy
+47,621
New +$5.6M 0.15% 122
2019
Q4 		– Sell
-7,390
Closed -$567K – 1828
2019
Q3 		$567K Buy
7,390
+3,528
+91% +$309K 0.02% 603
2019
Q2 		$332K Buy
+3,862
New +$263K 0.01% 643

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

Michael Gelband's RGEN Position: Q2 2026 in Review

Michael Gelband reduced its Repligen (RGEN) stake by 89% in Q2 2026, selling an estimated $4.42M and leaving 4,288 shares worth $585K. The position accounts for ﹤0.01% of the portfolio, ranked #1197.

Michael Gelband first reported a position in RGEN in Q2 2019 and has held it in 21 quarters since. The position peaked at $61.2M in Q2 2025. 476 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Michael Gelband held 4,288 shares of Repligen worth $585K as of Q2 2026.
  • Michael Gelband sold 35,940 Repligen shares in Q2 2026, an estimated $4.42M.
  • Repligen made up ﹤0.01% of Michael Gelband's portfolio in Q2 2026, its #1197 holding.
  • Michael Gelband first reported a position in Repligen in Q2 2019 and has held it in 21 quarters since.
  • Michael Gelband's Repligen position peaked at $61.2M in Q2 2025.
  • 476 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on ExodusPoint Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.