Astera Labs, Inc

Held by 11 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 04626A103 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide

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In plain English: 11 of the investors we track own this stock. In the latest quarter, 5 of them bought more of it and 7 sold some or all of theirs (3 bought it for the first time). That tells you what they did last quarter — not what the stock will do next.

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Managers holding

+1 vs last quarter (like-for-like)

Total value held

$2.22B

Across tracked managers

Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).

0.9%

Of each manager's book

QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.

+$818.05M

+115.0% vs last quarter

Net shares bought

-3.3M

Est. net flow -$1.49B

Quarter activity

5 bought · 7 sold

3 new · 2 sold out

Tracked capital in this stock

Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).

Aggregate buying and selling

Net share change reported each quarter

Who owns ALAB?

Who added and who trimmed · Q2 2026

Estimated dollar change per manager (change in shares × this quarter's price). Click a bar to open the manager.

Who owns ALAB? — Q2 2026

Holders ranked by position size, with each one's quarter-over-quarter change.

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All Only new positions Only increased Only reduced

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Manager

Fund

Value

% of their portfolio (%)

QoQ

Δ shares

Δ shares % (%)

Est. Δ value

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

#	Manager	Fund	Shares	Value ↓	% of their portfolio	QoQ	Δ shares	Δ shares %	Est. Δ value ⓘChange in shares × this quarter's price
1	Norges Bank	Norges Bank Investment Management	1.43M	$692.82M	0.1%	—	—	—	—
2	Fred Alger	Fred Alger Management	1.28M	$620.12M	2.1%	Reduced	-1.3M	-50.1%	-$622.69M
3	David Shaw	D.E. Shaw & Co.	680.30K	$328.60M	0.2%	Reduced	-839.3K	-55.2%	-$405.38M
4	Israel Englander	Millennium Management	604.49K	$291.98M	0.2%	Added	+384.1K	+174.3%	+$185.52M
5	Baillie Gifford	Baillie Gifford & Co	218.43K	$105.51M	0.1%	Reduced	-26.7K	-10.9%	-$12.90M
6	Jim Simons	Renaissance Technologies	153.40K	$74.10M	0.1%	Added	+24.0K	+18.5%	+$11.59M
7	Light Street Capital	Light Street Capital Management	125.75K	$60.74M	7.1%	New	+125.8K	—	+$60.74M
8	Two Sigma	Two Sigma Investments	48.08K	$23.23M	0.0%	Reduced	-696.2K	-93.5%	-$336.29M
9	Parnassus Investments	Parnassus Investments LLC	37.69K	$18.21M	0.0%	New	+37.7K	—	+$18.21M
10	Steve Cohen	Point72 Asset Management	13.52K	$6.53M	0.0%	New	+13.5K	—	+$6.53M
11	Ray Dalio	Bridgewater Associates	992	$479.16K	0.0%	Reduced	-749.9K	-99.9%	-$362.24M

Sold out completely this quarter

CSV Excel

Column filters

Manager	Fund	Shares sold	Value last quarter ↓
Ken Griffin	Citadel Advisors	-302.5K	$33.16M
John Ciampaglia & Eric Sprott	Sprott Inc	-5.8K	$635.68K

Politician trades

Ranges, not exact amounts. Politician data comes from official STOCK Act Periodic Transaction Reports, not 13F filings. The law requires a dollar range for each trade, not an exact amount, and reports can arrive up to 45 days after the trade (sometimes later). Any dollar total marked “est.” is an estimate built from range midpoints. House reports only: the Senate's disclosure site refuses automated access, so the trades shown here come from House reports — Senators may show no trades (or only trades from earlier House service), which is a gap in our source, not evidence that a Senator doesn't trade.

Politician trades in ALAB

CSV Excel

Chamber Both House Senate

Party All Democrats Republicans Independents

Traded Any time Last 30 days Last 90 days Last 12 months

All Purchases Sales Exchanges Large: $50K+ Very large: $250K+ Filed late (45+ days)

Column filters

Politician	Date	Ticker	Asset	Type	Reported range ⓘThe dollar range the politician reported. Exact amounts are not disclosed.	Est. size ⓘOur estimate only: the midpoint of the reported range.	Owner	Account ⓘSubholding Of: the account the trade was in, as named on the report (e.g. an IRA or a brokerage account). The same stock bought on the same day in different accounts is a separate trade in each account.	Filed ↓	Filing delay ⓘDays between the trade and the report. Over 45 days is late under the STOCK Act.	Source
Robert P. Bresnahan, Jr. Politician	Feb 27, 2025	ALAB	Astera Labs, Inc. - Common Stock (ALAB) [ST]	Sale	$1,001 - $15,000	Est. $8,000 (midpoint of reported range $1,001–$15,000)	Self	JP Morgan Brokerage Account #2	Mar 27, 2025	28 days	PTR ↗
Robert P. Bresnahan, Jr. Politician	Feb 18, 2025	ALAB	Astera Labs, Inc. - Common Stock (ALAB) [ST]	Sale	$1,001 - $15,000	Est. $8,000 (midpoint of reported range $1,001–$15,000)	Self	JP Morgan Brokerage Account #2	Mar 10, 2025	20 days	PTR ↗