Company · Ownership research

Astera Labs, Inc. ALAB

CIK 0001736297 · CUSIP 04626A103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 04626A103 (ALAB), not CUSIP 04626A903 (ALAB), CUSIP 04626A953 (ALAB), and does not merge CUSIPs.

This page lists the top 20 of 516 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	FMR LLC CIK 315066 · View history	$2.24B 24,804,046 shares	0.13%	+681.30K(+2.80%)Added	SEC filing ↗ Aug 14, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$1.09B 12,049,223 shares	0.02%	+2.75M(+29.60%)Added	SEC filing ↗ Aug 11, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$644.19M 7,124,417 shares	0.01%	+2.47M(+53.10%)Added	SEC filing ↗ Aug 12, 2025	▾
04	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$577.93M 6,391,580 shares	0.19%	-2.01M(-23.90%)Reduced	SEC filing ↗ Aug 14, 2025	▾
05	STATE STREET CORP CIK 93751 · View history	$193.81M 2,143,459 shares	0.01%	+604.36K(+39.30%)Added	SEC filing ↗ Aug 14, 2025	▾
06	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$183.59M 2,030,397 shares	0.18%	-1.35M(-39.90%)Reduced	SEC filing ↗ Aug 14, 2025	▾
07	LORD, ABBETT & CO. LLC CIK 728100 · View history	$176.87M 1,956,050 shares	0.57%	+762.89K(+63.90%)Added	SEC filing ↗ Aug 14, 2025	▾
08	FRED ALGER MANAGEMENT, LLC CIK 3520 · View history	$161.34M 1,784,336 shares	0.72%	+224.30K(+14.40%)Added	SEC filing ↗ Aug 14, 2025	▾
09	MORGAN STANLEY CIK 895421 · View history	$150.39M 1,663,241 shares	0.01%	+484.25K(+41.10%)Added	SEC filing ↗ Aug 14, 2025	▾
10	1832 Asset Management L.P. CIK 944388 · View history	$139.56M 1,543,500 shares	0.24%	+929.60K(+151.40%)Added	SEC filing ↗ Aug 13, 2025	▾
11	Driehaus Capital Management LLC CIK 938206 · View history	$121.73M 1,346,324 shares	0.97%	+1.15M(+568.90%)Added	SEC filing ↗ Aug 14, 2025	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$112.56M 1,244,978 shares	0.01%	+330.84K(+36.20%)Added	SEC filing ↗ Aug 8, 2025	▾
13	Value Aligned Research Advisors, LLC CIK 1963565 · View history	$106.79M 1,181,031 shares	4.77%	-152.17K(-11.40%)Reduced	SEC filing ↗ Aug 14, 2025	▾
14	FengHe Fund Management Pte. Ltd. CIK 1660531 · View history	$106.77M 1,180,848 shares	17.50%	+1.18MNew	SEC filing ↗ Jul 18, 2025	▾
15	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$100.45M 1,110,944 shares	0.02%	+658.16K(+145.40%)Added	SEC filing ↗ Aug 14, 2025	▾
16	MAVERICK CAPITAL LTD CIK 934639 · View history	$93.35M 1,032,441 shares	1.43%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
17	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$92.98M 1,028,315 shares	0.03%	+1.03MNew	SEC filing ↗ Aug 8, 2025	▾
18	Atreides Management, LP CIK 1777813 · View history	$86.33M 954,783 shares	2.40%	-3.70M(-79.50%)Reduced	SEC filing ↗ Aug 14, 2025	▾
19	JPMORGAN CHASE & CO CIK 19617 · View history	$85.55M 946,092 shares	0.01%	+8.87K(+0.90%)Added	SEC filing ↗ Aug 12, 2025	▾
20	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$78.49M 868,038 shares	0.07%	-152.91K(-15.00%)Reduced	SEC filing ↗ Aug 14, 2025	▾

Showing 20 / 516 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

516

Cancelled or null records excluded

Disclosed shares

102,738,438

Not deduplicated across managers

Disclosed value

$9.29B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Astera Labs, Inc. · Q2 2025

Explore all 516 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.