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 663 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	$4.71B 24,079,486 shares	0.25%	-724.56K(-2.90%)Reduced	SEC filing ↗ Nov 13, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$2.69B 13,743,141 shares	0.04%	+1.69M(+14.10%)Added	SEC filing ↗ Nov 7, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$2.20B 11,229,429 shares	0.04%	+4.11M(+57.60%)Added	SEC filing ↗ Nov 12, 2025	▾
04	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$571.48M 2,918,685 shares	0.18%	-3.47M(-54.30%)Reduced	SEC filing ↗ Nov 14, 2025	▾
05	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$498.73M 2,547,136 shares	0.40%	+516.74K(+25.50%)Added	SEC filing ↗ Nov 14, 2025	▾
06	STATE STREET CORP CIK 93751 · View history	$458.06M 2,339,451 shares	0.02%	+195.99K(+9.10%)Added	SEC filing ↗ Nov 14, 2025	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$455.15M 2,324,143 shares	0.03%	+1.08M(+86.70%)Added	SEC filing ↗ Nov 12, 2025	▾
08	BARCLAYS PLC CIK 312069 · Amended · View history	$394.51M 2,014,856 shares	0.15%	+1.96M(+3,711.60%)Added	SEC filing ↗ Mar 31, 2026	▾
09	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$387.99M 1,981,569 shares	0.03%	+1.18M(+148.10%)Added	SEC filing ↗ Feb 3, 2026	▾
10	Amundi CIK 1330387 · View history	$313.83M 1,421,263 shares	0.10%	+1.32M(+1,298.60%)Added	SEC filing ↗ Nov 14, 2025	▾
11	FRED ALGER MANAGEMENT, LLC CIK 3520 · View history	$301.81M 1,541,438 shares	1.17%	-242.90K(-13.60%)Reduced	SEC filing ↗ Nov 14, 2025	▾
12	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$295.20M 1,507,675 shares	0.09%	+479.36K(+46.60%)Added	SEC filing ↗ Oct 29, 2025	▾
13	LORD, ABBETT & CO. LLC CIK 728100 · View history	$292.96M 1,496,238 shares	0.87%	-459.81K(-23.50%)Reduced	SEC filing ↗ Nov 13, 2025	▾
14	MORGAN STANLEY CIK 895421 · Amended · View history	$284.78M 1,454,458 shares	0.02%	-208.78K(-12.60%)Reduced	SEC filing ↗ May 27, 2026	▾
15	Value Aligned Research Advisors, LLC CIK 1963565 · Amended · View history	$269.88M 1,378,351 shares	6.23%	+197.32K(+16.70%)Added	SEC filing ↗ Dec 3, 2025	▾
16	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$247.40M 1,263,510 shares	0.38%	+464.22K(+58.10%)Added	SEC filing ↗ Nov 14, 2025	▾
17	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$220.73M 1,127,340 shares	0.17%	+960.90K(+577.30%)Added	SEC filing ↗ Nov 13, 2025	▾
18	TWO SIGMA ADVISERS, LP CIK 1478735 · View history	$214.52M 1,095,600 shares	0.43%	+518.00K(+89.70%)Added	SEC filing ↗ Nov 14, 2025	▾
19	Rafferty Asset Management, LLC CIK 1389426 · View history	$209.60M 1,070,475 shares	0.68%	+1.07MNew	SEC filing ↗ Nov 12, 2025	▾
20	MAVERICK CAPITAL LTD CIK 934639 · View history	$202.15M 1,032,441 shares	2.71%	0(0.00%)Unchanged	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 663 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

663

Cancelled or null records excluded

Disclosed shares

110,777,530

Not deduplicated across managers

Disclosed value

$21.73B

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. · Q3 2025

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This page includes 20 of 663 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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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.