Castleark Management’s ThredUp TDUP Stock Holding History

Castleark Management’s Portfolio TDUP Stock Details TDUP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-373,310	Closed	-$2.39M	–	341
2025 Q4	$2.39M	Buy	+373,310	New	+$3.02M	0.07%	195

Other funds holding TDUP

NIM

Needham Investment Management New York $1.96B AUM 101.23% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

Castleark Management's TDUP Position: Q1 2026 in Review

Castleark Management sold out of ThredUp (TDUP) in Q1 2026, closing a stake of 373,310 shares — an estimated $2.39M sold.

Castleark Management first reported a position in TDUP in Q4 2025 and held it in 1 quarter. The position peaked at $2.39M in Q4 2025. 174 funds tracked by Wall St. Rank hold TDUP as of Q1 2026.

Castleark Management reported no remaining ThredUp position as of Q1 2026 after selling out during the quarter.
Castleark Management sold 373,310 ThredUp shares in Q1 2026, an estimated $2.39M.
Castleark Management first reported a position in ThredUp in Q4 2025 and held it in 1 quarter.
Castleark Management's ThredUp position peaked at $2.39M in Q4 2025.
174 funds tracked by Wall St. Rank held ThredUp as of Q1 2026.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.