Jim Simons’s Astera Labs ALAB Stock Holding History

Jim Simons’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
2026 Q1	$14.2M	Sell	129,401 -277,000	-68%	-$39.5M	0.02%	792
2025 Q4	$67.6M	Sell	406,401 -436,900	-52%	-$73.1M	0.1%	221
2025 Q3	$165M	Buy	843,301 +93,801	+13%	+$15.4M	0.22%	86
2025 Q2	$67.8M	Sell	749,500 -677,200	-47%	-$53.5M	0.09%	248
2025 Q1	$85.1M	Buy	1,426,700 +253,000	+22%	+$23.4M	0.13%	191
2024 Q4	$155M	Buy	1,173,700 +756,800	+182%	+$71M	0.23%	79
2024 Q3	$21.8M	Buy	416,900 +394,800	+1,786%	+$18.5M	0.03%	628
2024 Q2	$1.34M	Buy	+22,100	New	+$1.53M	﹤0.01%	2148

Other funds holding ALAB

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

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

FAM

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

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

Amundi Paris, France $413B AUM 44.57% 1-Year Est. Return

Jim Simons's ALAB Position: Q1 2026 in Review

Jim Simons reduced its Astera Labs (ALAB) stake by 68% in Q1 2026, selling an estimated $39.5M and leaving 129,401 shares worth $14.2M. The position accounts for 0.02% of the portfolio, ranked #792.

Jim Simons first reported a position in ALAB in Q2 2024 and has held it in 8 quarters since. The position peaked at $165M in Q3 2025. 706 funds tracked by Wall St. Rank hold ALAB as of Q1 2026.

Jim Simons held 129,401 shares of Astera Labs worth $14.2M as of Q1 2026.
Jim Simons sold 277,000 Astera Labs shares in Q1 2026, an estimated $39.5M.
Astera Labs made up 0.02% of Jim Simons's portfolio in Q1 2026, its #792 holding.
Jim Simons first reported a position in Astera Labs in Q2 2024 and has held it in 8 quarters since.
Jim Simons's Astera Labs position peaked at $165M in Q3 2025.
706 funds tracked by Wall St. Rank held Astera Labs as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.