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Rossby Financial’s Astera Labs ALAB Stock Holding History

Rossby Financial’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 		$19.6K Buy
184
+75
+69% +$10.7K ﹤0.01% 1017
2025
Q4 		$18.1K Buy
+109
New +$18.2K 0.01% 752

Other funds holding ALAB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
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
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
AM
Atreides Management Boston, Massachusetts $5B AUM 78.34% 1-Year Est. Return
State Street
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
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Amundi
Amundi Paris, France $367B AUM 31.23% 1-Year Est. Return

Rossby Financial's ALAB Position: Q1 2026 in Review

Rossby Financial increased its Astera Labs (ALAB) stake by 69% in Q1 2026, buying an estimated $10.7K and bringing the position to 184 shares worth $19.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1017.

Rossby Financial first reported a position in ALAB in Q4 2025 and has held it in 2 quarters since. 703 funds tracked by Wall St. Rank hold ALAB as of Q1 2026.

  • Rossby Financial held 184 shares of Astera Labs worth $19.6K as of Q1 2026.
  • Rossby Financial bought 75 Astera Labs shares in Q1 2026, an estimated $10.7K.
  • Astera Labs made up ﹤0.01% of Rossby Financial's portfolio in Q1 2026, its #1017 holding.
  • Rossby Financial first reported a position in Astera Labs in Q4 2025 and has held it in 2 quarters since.
  • 703 funds tracked by Wall St. Rank held Astera Labs as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.