Castle Hook Partners’s Astera Labs ALAB Stock Holding History

Castle Hook Partners’s Portfolio ALAB Stock Details ALAB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-1,219	Closed	-$239K	–	87
2025 Q3	$239K	Buy	+1,219	New	+$200K	﹤0.01%	63

Other funds holding ALAB

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

FAM

Fred Alger Management New York $22.8B AUM 64.63% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Atreides Management Boston, Massachusetts $5B AUM 78.34% 1-Year Est. Return

Castle Hook Partners's ALAB Position: Q4 2025 in Review

Castle Hook Partners sold out of Astera Labs (ALAB) in Q4 2025, closing a stake of 1,219 shares — an estimated $239K sold.

Castle Hook Partners first reported a position in ALAB in Q3 2025 and held it in 1 quarter. The position peaked at $239K in Q3 2025. 700 funds tracked by Wall St. Rank hold ALAB as of Q4 2025.

Castle Hook Partners reported no remaining Astera Labs position as of Q4 2025 after selling out during the quarter.
Castle Hook Partners sold 1,219 Astera Labs shares in Q4 2025, an estimated $239K.
Castle Hook Partners first reported a position in Astera Labs in Q3 2025 and held it in 1 quarter.
Castle Hook Partners's Astera Labs position peaked at $239K in Q3 2025.
700 funds tracked by Wall St. Rank held Astera Labs as of Q4 2025.

Based on Castle Hook Partners's 13F filing for Q4 2025, filed 17 Feb 2026.