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Osterweis Capital Management’s Twist Bioscience TWST Stock Holding History

Osterweis Capital Management’s Portfolio TWST Stock Details TWST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.5M Sell
111,458
-99,700
-47% -$6.49M 0.54% 65
2026
Q1 		$10M Sell
211,158
-45,720
-18% -$2.05M 0.52% 58
2025
Q4 		$8.15M Buy
+256,878
New +$8.01M 0.34% 74

Other funds holding TWST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

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

Osterweis Capital Management reduced its Twist Bioscience (TWST) stake by 47% in Q2 2026, selling an estimated $6.49M and leaving 111,458 shares worth $11.5M. The position accounts for 0.54% of the portfolio, ranked #65.

Osterweis Capital Management first reported a position in TWST in Q4 2025 and has held it in 3 quarters since. 336 funds tracked by Wall St. Rank hold TWST as of Q2 2026.

  • Osterweis Capital Management held 111,458 shares of Twist Bioscience worth $11.5M as of Q2 2026.
  • Osterweis Capital Management sold 99,700 Twist Bioscience shares in Q2 2026, an estimated $6.49M.
  • Twist Bioscience made up 0.54% of Osterweis Capital Management's portfolio in Q2 2026, its #65 holding.
  • Osterweis Capital Management first reported a position in Twist Bioscience in Q4 2025 and has held it in 3 quarters since.
  • 336 funds tracked by Wall St. Rank held Twist Bioscience as of Q2 2026.

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