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Israel Englander’s Repligen RGEN Stock Holding History

Israel Englander’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 		– Sell
-10,100
Closed -$1.65M – 6274
2025
Q4 		$1.65M Sell
10,100
-65,000
-87% -$10.2M ﹤0.01% 4101
2025
Q3 		$10M Buy
+75,100
New +$9.12M ﹤0.01% 2379
2024
Q4 		– Sell
-53,600
Closed -$7.98M – 6387
2024
Q3 		$7.98M Buy
53,600
+3,100
+6% +$445K ﹤0.01% 2401
2024
Q2 		$6.37M Buy
+50,500
New +$7.92M ﹤0.01% 2492
2023
Q3 		– Sell
-5,200
Closed -$736K – 6488
2023
Q2 		$736K Sell
5,200
-14,800
-74% -$2.37M ﹤0.01% 4269
2023
Q1 		$3.37M Sell
20,000
-66,000
-77% -$11.8M ﹤0.01% 2958
2022
Q4 		$14.6M Buy
+86,000
New +$15.6M 0.01% 1741
2022
Q3 		– Sell
-32,000
Closed -$5.2M – 7420
2022
Q2 		$5.2M Buy
+32,000
New +$5.06M ﹤0.01% 2767

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

Israel Englander's RGEN Position: Q2 2026 in Review

Israel Englander sold out of Repligen (RGEN) in Q2 2026, closing a stake of 22,461 shares — an estimated $2.76M sold.

Israel Englander first reported a position in RGEN in Q2 2013 and held it in 43 quarters. The position peaked at $109M in Q3 2025. 476 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Israel Englander reported no remaining Repligen position as of Q2 2026 after selling out during the quarter.
  • Israel Englander sold 22,461 Repligen shares in Q2 2026, an estimated $2.76M.
  • Israel Englander first reported a position in Repligen in Q2 2013 and held it in 43 quarters.
  • Israel Englander's Repligen position peaked at $109M in Q3 2025.
  • 476 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

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