$ALAB

$274.38 +$14.87 (5.73%) Live

$ALAB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 173.5M shares outstanding

Who owns ALAB?

By type of holder

Institutions 73.5% Insiders 20.3% Everyone else 6.3%

Concentration Top 10 holders own 55.2%

FMR LLC 14.3% · Dyckerhoff Stefan A 9.9%

Institutional ownership

73.5%

+3.8 pts vs last qtr

Institutional holders

988

+280 vs last qtr

Net shares bought

+6.5M

by institutions in Q2 2026

New / sold out

373 / 93

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Invesco Ltd. +4.5M
BlackRock, Inc. +2.2M

Biggest sellers in Q2 2026

Atreides Management, LP −2.1M
Alliancebernstein L.P. −1.5M

Who is planning to sell?

Notices of proposed sale, last 12 months

$888M

51 notices from 19 people

Shares covered

4.0M

2.30% of the company

Arranged in advance

89%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Navad Trust dated November 1, 2012 Director 10b5-1 $201M
Jitendra Mohan Ceo, director 10b5-1 $141M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2022–FY2025

+425.4%

+73.85% a year

Each share's claim on the business

−81.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$1.59M vs $436M

over 4 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years87% Under 1 year13%

Quarterly turnover

20.2%

of institutional shares changed hands

Top 10 managers, median time held

2.3 years

Super Investors

Investment managers reporting ALAB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
F FMR LLC	24.8M	14.32%	−684.5K (−2.7%)	2024	0.5%
Shares held by quarter Peak holding25.5M (Q1'26) Change over 8 quarters+1.3M Share of the company14.320% FMR LLC's full portfolio →
B BlackRock, Inc.	13.7M	7.89%	+2.2M (+19.5%)	2024	0.1%
Shares held by quarter Peak holding13.7M (Q2'26) Change over 8 quarters+11.5M Share of the company7.890% BlackRock, Inc.'s full portfolio →

FMR LLC

24.8M

% of company

14.32%

Change vs last qtr

−684.5K (−2.7%)

Held since

2024

BlackRock, Inc.

13.7M

% of company

7.89%

Change vs last qtr

+2.2M (+19.5%)

Held since

2024

28 more super investors behind a free account

See every manager holding Astera Labs, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ALAB on Form N-PORT; together they hold 36.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.37B	4.9M	2.82%	0.10%	June 30, 2026
SS Select Semiconductors Portfolio Fidelity Select Portfolios	$2.09B	7.0M	4.06%	4.66%	August 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.37B

% of company

2.82%

% of the fund

0.10%

As of

June 30, 2026

Select Semiconductors Portfolio

Fidelity Select Portfolios

Position value

$2.09B

% of company

4.06%

% of the fund

4.66%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding Astera Labs, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
DS Dyckerhoff Stefan A Insider	17.1M	9.87%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company9.870% Dyckerhoff Stefan A's insider activity →
MJ Mohan Jitendra Insider	8.1M	4.64%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company4.640% Mohan Jitendra's insider activity →

Dyckerhoff Stefan A

Insider

17.1M

% of company

9.87%

Change vs last qtr

—

Held since

—

Mohan Jitendra

Insider

8.1M

% of company

4.64%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of Astera Labs, Inc..

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