L3VLUP

ALAB in the 13F filings

Astera Labs Inc · CUSIP 04626A103

Q3 2026: 5 of 95 managers have filed so far; the filing deadline is 16 November 2026. Its figures cover those filers only, so it is not yet a picture of the tracked managers.

Quarter end
30 Sep 2026
the date the book describes
Filed
9 Nov 2026
latest of these filings; the earliest 9 Nov 2026
Managers listing it
3
at least, of 95 tracked, among listed positions
Comparable managers
5
filed both Q2 2026 and Q3 2026; 2 listed it in both
Shares listed
1,326,195
combined, among listed positions
Reported value
$472m
combined, at the quarter end

Among the 5 comparable managers: 3 buyers (opened or added shares) and 0 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +789,858.

Managers listing ALAB in Q3 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

3 of 3 holders

ActionFiling
Baillie Gifford & Co786,876$280m0.26%Added+568,4469 Nov 2026 (the filing on sec.gov)
Squarepoint Ops LLC475,810$169m0.19%Added+158,6029 Nov 2026 (the filing on sec.gov)
Acadian Asset Management LLC63,509$23munder 0.1%Added+62,8109 Nov 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2026 to Q3 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

No reduction among listed positions.

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
19 in Q4 2024 to 3 in Q3 2026

Tracked managers listing it, at least.

0102030Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026Q3 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ALAB by quarter
QuarterHoldersReported valueBuyersSellers
Q1 202415$1.5bn150
Q2 20248$1.6bn28
Q3 202411$1.5bn83
Q4 202419$5.4bn128
Q1 202515$2.5bn105
Q2 202523$3.7bn167
Q3 202521$7.5bn1310
Q4 202519$6.1bn1327
Q1 202613$3.9bn1320
Q2 202624$18.9bn2219
Q3 20263$472m30

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

ALAB and NVDA →ALAB and AVGO →ALAB and MU →Choose a stock to compare with ALAB →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own ALAB, latest filings →Back to the 13F Explorer →