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Osterweis Capital Management’s Repligen RGEN Stock Holding History

Osterweis Capital 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 		$15.1M Buy
110,995
+18,775
+20% +$2.31M 0.71% 46
2026
Q1 		$10.9M Buy
92,220
+37,585
+69% +$5.25M 0.56% 56
2025
Q4 		$8.95M Sell
54,635
-18,295
-25% -$2.87M 0.38% 68
2025
Q3 		$9.75M Buy
+72,930
New +$8.86M 0.44% 64
2025
Q2 		– Sell
-72,765
Closed -$9.26M – 399
2025
Q1 		$9.26M Buy
72,765
+11,080
+18% +$1.71M 0.46% 67
2024
Q4 		$8.88M Buy
61,685
+8,240
+15% +$1.18M 0.41% 73
2024
Q3 		$7.95M Buy
53,445
+17,410
+48% +$2.5M 0.4% 76
2024
Q2 		$4.54M Buy
+36,035
New +$5.65M 0.23% 84

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

Osterweis Capital Management's RGEN Position: Q2 2026 in Review

Osterweis Capital Management increased its Repligen (RGEN) stake by 20% in Q2 2026, buying an estimated $2.31M and bringing the position to 110,995 shares worth $15.1M. The position accounts for 0.71% of the portfolio, ranked #46.

Osterweis Capital Management first reported a position in RGEN in Q2 2024 and has held it in 8 quarters since. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Osterweis Capital Management held 110,995 shares of Repligen worth $15.1M as of Q2 2026.
  • Osterweis Capital Management bought 18,775 Repligen shares in Q2 2026, an estimated $2.31M.
  • Repligen made up 0.71% of Osterweis Capital Management's portfolio in Q2 2026, its #46 holding.
  • Osterweis Capital Management first reported a position in Repligen in Q2 2024 and has held it in 8 quarters since.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

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