Jane Street’s Astera Labs ALAB Stock Holding History

Jane Street’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	$284M	Buy	2,589,700 +306,800	+13%	+$43.7M	0.04%	314
2025 Q4	$380M	Buy	2,282,900 +132,000	+6%	+$22.1M	0.06%	223
2025 Q3	$421M	Buy	2,150,900 +798,000	+59%	+$131M	0.06%	198
2025 Q2	$122M	Buy	1,352,900 +182,000	+16%	+$14.4M	0.02%	403
2025 Q1	$69.9M	Buy	1,170,900 +50,500	+5%	+$4.67M	0.02%	500
2024 Q4	$148M	Buy	1,120,400 +679,300	+154%	+$63.8M	0.03%	321
2024 Q3	$23.1M	Buy	441,100 +406,000	+1,157%	+$19.1M	0.01%	1139
2024 Q2	$2.12M	Sell	35,100 -1,400	-4%	-$97.1K	﹤0.01%	4371
2024 Q1	$2.71M	Buy	+36,500	New	+$2.7M	﹤0.01%	3577

Other funds holding ALAB

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

BlackRock New York $5.72T AUM 30.48% 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 $2.9T AUM 29.55% 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 $367B AUM 31.23% 1-Year Est. Return

Jane Street's ALAB Position: Q1 2026 in Review

Jane Street reduced its Astera Labs (ALAB) stake by 31% in Q1 2026, selling an estimated $278K and leaving 4,342 shares worth $476K. The position accounts for ﹤0.01% of the portfolio, ranked #8166.

Jane Street first reported a position in ALAB in Q1 2024 and has held it in 8 quarters since. The position peaked at $79.3M in Q3 2025. 703 funds tracked by Wall St. Rank hold ALAB as of Q1 2026.

Jane Street held 4,342 shares of Astera Labs worth $476K as of Q1 2026.
Jane Street sold 1,952 Astera Labs shares in Q1 2026, an estimated $278K.
Astera Labs made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8166 holding.
Jane Street first reported a position in Astera Labs in Q1 2024 and has held it in 8 quarters since.
Jane Street's Astera Labs position peaked at $79.3M in Q3 2025.
703 funds tracked by Wall St. Rank held Astera Labs as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.