Astera Labs ALAB Institutional Ownership

NASDAQ ALAB

$284.97 -5.55 (-1.91%)

At close: Aug 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

687 Institutions

Increased 392 57.1%

Unchanged 81 11.8%

Reduced 214 31.1%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

70.72%

▲+0.62 pp QoQ

Shares Held by Institutions

120.73Mn

of 170.73Mn outstanding

▲+22.21% QoQ

Shares Outstanding

170.73Mn

49.99Mn held outside 13F filers

Institutional Investors

687

filed 13F for Mar 2026

▲+2 vs prior quarter

Net Shares Added (QoQ)

+21.94Mn

accumulated since last quarter

Value of Holdings

$36.64Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

Astera Labs, Inc. (NASDAQ:ALAB) is held by 687 institutional investors per 13F filings through March 2026.

Collectively, these holders controlled 70.7% of Astera Labs's outstanding shares in March 2026, up from 70.1% in December 2025.
They increased total shares held in Astera Labs by 22.21% from last quarter, and the number of investors in ALAB increased 77.52% annually.
Activity in ALAB broke down as 392 buyers, 214 sellers, and 81 unchanged among 687 total holders.
Altogether, these fund groups held 120.73Mn shares in ALAB by March 2026, up by 21.94Mn shares quarter on quarter, and up 17.83Mn shares year over year.
FMR LLC holds the largest position in ALAB at 25.53Mn shares as of March 31, 2026, or 14.95% of shares outstanding.
The most significant purchases of ALAB for the quarter ending March 2026 came from VANGUARD PORTFOLIO MANAGEMENT LLC (7.31Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.34Mn), VAN ECK ASSOCIATES CORP (1.82Mn), Atreides Management, LP (1.75Mn), BNP PARIBAS FINANCIAL MARKETS (1.02Mn).
Top sellers of ALAB stock for the quarter ending March 2026 included BlackRock, Inc. (1.52Mn), Goldman Sachs Group Inc (1.25Mn), D. E. Shaw & Co., Inc. (932.82K), FULLER & THALER ASSET MANAGEMENT, INC. (812.49K), LORD, ABBETT & CO. LLC (767.74K).
Per Business Quant, the top 10 investors in ALAB for the quarter ending March 2026 include FMR LLC (25.53Mn), BlackRock, Inc. (11.45Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (7.31Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.34Mn), Atreides Management, LP (3.37Mn), State Street Corp (3.33Mn), FRED ALGER MANAGEMENT, LLC (2.57Mn), ALLIANCEBERNSTEIN L.P. (2.51Mn), GEODE CAPITAL MANAGEMENT, LLC (2.51Mn), Amundi (1.88Mn).

Form 13F Holdings

687 Institutional Holders

Report period 31 Mar, 2026

Total shares held 120.73Mn

Of outstanding 70.72%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	FMR LLC	0000315066	25,529,885	14.95%	▲194,944	+0.77%	$2.80Bn
2	BlackRock, Inc.	0002012383	11,449,769	6.71%	▼1,519,089	-11.71%	$1.25Bn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	7,309,778	4.28%	▲7,309,778	0.00%	$801.15Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	6,340,732	3.71%	▲6,340,732	0.00%	$694.94Mn
5	Atreides Management, LP	0001777813	3,365,787	1.97%	▲1,754,593	+108.90%	$368.89Mn
6	State Street Corp	0000093751	3,333,606	1.95%	▲233,797	+7.54%	$365.36Mn
7	FRED ALGER MANAGEMENT, LLC	0000003520	2,573,005	1.51%	▲638,317	+32.99%	$282.00Mn
8	ALLIANCEBERNSTEIN L.P.	0001109448	2,512,695	1.47%	▲334,900	+15.38%	$418.01Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,508,264	1.47%	▲79,186	+3.26%	$274.17Mn
10	Amundi	0001330387	1,880,830	1.10%	▲823,477	+77.88%	$206.14Mn
11	VAN ECK ASSOCIATES CORP	0000869178	1,864,416	1.09%	▲1,819,597	+4,059.88%	$204.34K
12	BNP PARIBAS FINANCIAL MARKETS	0001166588	1,813,818	1.06%	▲1,016,432	+127.47%	$198.79Mn
13	Bank Of America Corp /De/	0000070858	1,788,232	1.05%	▲299,415	+20.11%	$195.99Mn
14	Morgan Stanley	0000895421	1,732,348	1.01%	▼202,119	-10.45%	$189.87Mn
15	Barclays Plc	0000312069	1,554,180	0.91%	▲404,100	+35.14%	$170.34Mn
16	D. E. Shaw & Co., Inc.	0001009207	1,519,561	0.89%	▼932,819	-38.04%	$166.54Mn
17	Citigroup Inc	0000831001	1,513,054	0.89%	▲584,724	+62.99%	$165.83Mn
18	UBS Group AG	0001610520	1,442,578	0.84%	▼111,378	-7.17%	$158.11Mn
19	Goldman Sachs Group Inc	0000886982	1,380,114	0.81%	▼1,245,740	-47.44%	$151.26Mn
20	MAVERICK CAPITAL LTD	0000934639	955,356	0.56%	▼20,603	-2.11%	$104.71Mn

Showing 1 to 20 of 687 holders