Astera Labs, Inc. (ALAB) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

166,219,140Shares Outstanding

2,068,612Shares held by institutions

$307,912,896Value of institutional holdings

69.51%Institutional ownership %

6.24%Shares Changed QoQ

645No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of September 2025 show that 645 institutional investors hold a position in Astera Labs, Inc. (NASDAQ:ALAB).

Astera Labs saw its institutional ownership percentage rose to 69.5% in September 2025 from 64.4% in June 2025.
Quarterly data indicates a 6.24% shift in institutional share volume, and the annual owner count reflects an increase of 168.75%.
A review of institutional activity for Astera Labs shows 371 of 645 filers increasing their positions, while 234 reduced their stake, and 40 remained unchanged.
Collectively, institutional investors increased their stake in Astera Labs to 115.54Mn shares as of September 2025, a change that is up by 6.78Mn shares quarter on quarter and up 38.93Mn shares year over year.
As of September 30, 2025, FMR LLC held Astera Labs's largest shareholding position with over 24.08Mn shares, representing 14.49% of total outstanding shares.
Among the most significant buyers of Astera Labs during September 2025 were BlackRock, Inc. (4.11Mn), BARCLAYS PLC (1.96Mn), VANGUARD GROUP INC (1.69Mn), JANE STREET GROUP, LLC (1.44Mn), Amundi (1.32Mn).
Leading sellers of Astera Labs stock in September 2025 included ALLIANCEBERNSTEIN L.P. (3.47Mn), JENNISON ASSOCIATES LLC (1.73Mn), AMERIPRISE FINANCIAL INC (925.20K), Atreides Management, LP (892.73K), FengHe Fund Management Pte. Ltd. (856.85K).
The top 10 institutional holders of Astera Labs for the quarter ending September 2025 included FMR LLC (24.08Mn), VANGUARD GROUP INC (13.74Mn), BlackRock, Inc. (11.23Mn), JANE STREET GROUP, LLC (3.75Mn), ALLIANCEBERNSTEIN L.P. (2.92Mn), D. E. Shaw & Co., Inc. (2.55Mn), STATE STREET CORP (2.34Mn), GEODE CAPITAL MANAGEMENT, LLC (2.32Mn), BARCLAYS PLC (2.01Mn), BANK OF AMERICA CORP /DE/ (1.98Mn).

645 Institutional Holders

2,068,612 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
FMR LLC	30 Sep, 2025	24,079,486	-724,560	-2.92%	$4,714,763,379.00
VANGUARD GROUP INC	30 Sep, 2025	13,743,141	1,693,918	14.06%	$2,690,907,009.00
BlackRock, Inc.	30 Sep, 2025	11,229,429	4,105,012	57.62%	$2,198,722,283.00
JANE STREET GROUP, LLC	30 Sep, 2025	3,749,281	1,435,732	62.06%	$734,109,220.00
ALLIANCEBERNSTEIN L.P.	30 Sep, 2025	2,918,685	-3,472,895	-54.34%	$571,478,523.00
D. E. Shaw & Co., Inc.	30 Sep, 2025	2,547,136	516,739	25.45%	$498,729,228.00
STATE STREET CORP	30 Sep, 2025	2,339,451	195,992	9.14%	$458,064,506.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	2,324,143	1,079,165	86.68%	$455,151,161.00
BARCLAYS PLC	30 Sep, 2025	2,014,856	1,961,995	3,711.61%	$394,508,803.00
BANK OF AMERICA CORP /DE/	30 Sep, 2025	1,981,569	1,182,739	148.06%	$387,991,211.00
FRED ALGER MANAGEMENT, LLC	30 Sep, 2025	1,541,438	-242,898	-13.61%	$301,813,560.00
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	30 Sep, 2025	1,507,675	479,360	46.62%	$295,202,764.00
LORD, ABBETT & CO. LLC	30 Sep, 2025	1,496,238	-459,812	-23.51%	$292,964.00
MORGAN STANLEY	30 Sep, 2025	1,454,458	-208,783	-12.55%	$284,783,484.00
Amundi	30 Sep, 2025	1,421,263	1,319,643	1,298.61%	$313,829,083.00
Value Aligned Research Advisors, LLC	30 Sep, 2025	1,378,351	197,320	16.71%	$269,881,126.00
TWO SIGMA INVESTMENTS, LP	30 Sep, 2025	1,263,510	464,224	58.08%	$247,395,258.00
BNP PARIBAS FINANCIAL MARKETS	30 Sep, 2025	1,127,340	960,899	577.32%	$220,733,172.00
TWO SIGMA ADVISERS, LP	30 Sep, 2025	1,095,600	518,000	89.68%	$214,518,480.00
Rafferty Asset Management, LLC	30 Sep, 2025	1,070,475	1,070,475	0.00%	$209,599,005.00

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Astera Labs, Inc. (ALAB) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

645 Institutional Holders

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