Mariner
ALAB icon

Mariner’s Astera Labs ALAB Stock Holding History

Mariner’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
Q2 		$8.01M Buy
16,600
+9,452
+132% +$2.51M 0.01% 831
2026
Q1 		$784K Sell
7,148
-2,549
-26% -$363K ﹤0.01% 2148
2025
Q4 		$1.61M Sell
9,697
-10,481
-52% -$1.75M ﹤0.01% 1628
2025
Q3 		$3.95M Buy
20,178
+5,145
+34% +$846K 0.01% 1041
2025
Q2 		$1.36M Buy
15,033
+3,622
+32% +$286K ﹤0.01% 1590
2025
Q1 		$681K Buy
11,411
+5,518
+94% +$510K ﹤0.01% 1954
2024
Q4 		$781K Buy
+5,893
New +$553K ﹤0.01% 1830

Other funds holding ALAB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Mariner's ALAB Position: Q2 2026 in Review

Mariner increased its Astera Labs (ALAB) stake by 132% in Q2 2026, buying an estimated $2.51M and bringing the position to 16,600 shares worth $8.01M. The position accounts for 0.01% of the portfolio, ranked #831.

Mariner first reported a position in ALAB in Q4 2024 and has held it in 7 quarters since. 989 funds tracked by Wall St. Rank hold ALAB as of Q2 2026.

  • Mariner held 16,600 shares of Astera Labs worth $8.01M as of Q2 2026.
  • Mariner bought 9,452 Astera Labs shares in Q2 2026, an estimated $2.51M.
  • Astera Labs made up 0.01% of Mariner's portfolio in Q2 2026, its #831 holding.
  • Mariner first reported a position in Astera Labs in Q4 2024 and has held it in 7 quarters since.
  • 989 funds tracked by Wall St. Rank held Astera Labs as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.