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Weiss Asset Management’s Repligen RGEN Stock Holding History

Weiss 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
Q2 		$900K Buy
+6,593
New +$810K 0.01% 439
2020
Q1 		– Sell
-24,000
Closed -$2.22M – 303
2019
Q4 		$2.22M Hold
24,000
– – 0.15% 85
2019
Q3 		$1.84M Buy
+24,000
New +$2.1M 0.15% 82

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

Weiss Asset Management's RGEN Position: Q2 2026 in Review

Weiss Asset Management opened a new position in Repligen (RGEN) in Q2 2026: 6,593 shares worth $900K. The stake represents 0.01% of the portfolio and ranks #439 among its holdings. This is a return to the name: Weiss Asset Management previously reported a position in RGEN as recently as Q4 2019.

Weiss Asset Management first reported a position in RGEN in Q3 2019 and has held it in 3 quarters since. The position peaked at $2.22M in Q4 2019. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Weiss Asset Management held 6,593 shares of Repligen worth $900K as of Q2 2026.
  • Repligen was a new Weiss Asset Management position in Q2 2026.
  • Repligen made up 0.01% of Weiss Asset Management's portfolio in Q2 2026, its #439 holding.
  • Weiss Asset Management first reported a position in Repligen in Q3 2019 and has held it in 3 quarters since.
  • Weiss Asset Management's Repligen position peaked at $2.22M in Q4 2019.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

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