Astera Labs, Inc. (ALAB) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

2,584,313Shares held by institutions

$259,154,908Value of institutional holdings

57.48%Institutional ownership %

7.35%Shares Changed QoQ

504No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Astera Labs, Inc. (NASDAQ:ALAB) showed up in the 13F filings of 676 institutional investors as of December 2025.

These investors held 63.7% of outstanding shares in December 2025, up from 63.4% in September 2025.
They increased total shares held in Astera Labs by 5.24% from the prior quarter, while the number of investors in ALAB increased 64.08% year over year.
Among the 676 funds, 430 bought more Astera Labs shares, 197 sold down, and 49 held their ground.
Combined, these investors held 115.04Mn shares in ALAB for December 2025, up by 5.73Mn shares quarter on quarter, and up 17.26Mn shares year over year.
As of December 31, 2025, FMR LLC held the largest stake in Astera Labs with 25.33Mn shares, accounting for 14.03% of total shares outstanding.
Leading buyers of Astera Labs shares for the quarter ending December 2025 were BlackRock, Inc. (1.74Mn), Atreides Management, LP (1.55Mn), FMR LLC (1.26Mn), Artisan Partners Limited Partnership (895.53K), FULLER & THALER ASSET MANAGEMENT, INC. (875.22K).
The largest sellers of Astera Labs for the quarter ending December 2025 were Bank Of America Corp /De/ (2.47Mn), Value Aligned Research Advisors, LLC (1.71Mn), Jpmorgan Chase & Co (903.56K), Barclays Plc (864.78K), DRIEHAUS CAPITAL MANAGEMENT LLC (822.56K).
Business Quant data shows the 10 biggest positions in Astera Labs as of December 2025 are held by FMR LLC (25.33Mn), VANGUARD GROUP INC (13.83Mn), BlackRock, Inc. (12.97Mn), State Street Corp (3.1Mn), D. E. Shaw & Co., Inc. (2.45Mn), GEODE CAPITAL MANAGEMENT, LLC (2.43Mn), ALLIANCEBERNSTEIN L.P. (2.18Mn), FRED ALGER MANAGEMENT, LLC (1.93Mn), Morgan Stanley (1.93Mn), FULLER & THALER ASSET MANAGEMENT, INC. (1.65Mn).

679 Institutional Holders

2,584,313 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	1,739,429	15.49%	$0.00
FMR LLC	31 Dec, 2025	1,255,455	5.21%	$0.00
Atreides Management, LP	31 Dec, 2025	1,549,144	2,496.61%	$0.00
Barclays Plc	31 Dec, 2025	-954,687	-45.36%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	84,365	0.61%	$0.00
UBS Group AG	31 Dec, 2025	727,180	87.95%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	130,802	356.99%	$0.00
State Street Corp	31 Dec, 2025	760,358	32.50%	$0.00
Polar Capital Holdings Plc	31 Dec, 2025	373,836	120.35%	$0.00
Spear Advisors LLC	31 Dec, 2025	94,895	0.00%	$0.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	-94,756	-3.72%	$0.00
Clear Street Group Inc.	31 Dec, 2025	266,975	86.06%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	20,519	99.92%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	104,935	4.51%	$0.00
Value Aligned Research Advisors, LLC	31 Dec, 2025	-1,712,845	-75.09%	$0.00
Osbon Capital Management LLC	31 Dec, 2025	43	0.00%	$0.00
ALLIANCEBERNSTEIN L.P.	31 Dec, 2025	-740,890	-25.38%	$0.00
Allspring Global Investments Holdings, LLC	31 Dec, 2025	111,502	25.17%	$0.00
Purpose Unlimited Inc.	31 Dec, 2025	17	0.00%	$0.00
FRED ALGER MANAGEMENT, LLC	31 Dec, 2025	393,250	25.51%	$0.00

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