DYCKERHOFF STEFAN A sold 70.3% of their position (12.50K shares) of ASTERA LABS, INC. on the open market

Open‑market sale worth $4.55M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

DYCKERHOFF STEFAN A

Filed: 6/5/2026ACC: 0001484394-26-000004

InsiderDYCKERHOFF STEFAN ACIK 1484394

→

IssuerASTERA LABS, INC.CIK 1736297

Director10% Owner

Since Mar 2024

-11.66K

Net shares

Net seller

$4.55M

Total sold

Open market trades

0B · 6S

Total transactions

837.00 acquired · 12.50K disposed

Non-Derivative Transactions7

Common Stock

Direct

S · Sale

−3.08K

Price / share

$364.25

Trade value

$1.12M

% of position

4.8%

6/3/2026

63.64K→60.56K

Common Stock

Indirect

S · Sale

−7.31K

Price / share

$364.25

Trade value

$2.66M

% of position

2.2%

6/3/2026

328.06K→320.75K

Common Stock

Indirect

S · Sale

−580.00

Price / share

$364.25

Trade value

$211.26K

% of position

9.7%

6/3/2026

5.95K→5.37K

Common Stock

Direct

S · Sale

−428.00

Price / share

$365.09

Trade value

$156.26K

% of position

0.7%

6/3/2026

60.56K→60.13K

Common Stock

Indirect

S · Sale

−1.02K

Price / share

$365.09

Trade value

$372.02K

% of position

0.3%

6/3/2026

320.75K→319.73K

Common Stock

Indirect

S · Sale

−81.00

Price / share

$365.09

Trade value

$29.57K

% of position

1.5%

6/3/2026

5.37K→5.29K

Common Stock

Direct

A · Award

+837.00

Price / share

—

Trade value

—

% of position

1.4%

6/4/2026

60.13K→60.97K

Total

Net shares

−11.66K

Net value

-$4.55M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	6/3/2026	S · Sale	−3.08K	$364.25	$1.12M	4.8%	63.64K	60.56K
Common Stock Indirect	6/3/2026	S · Sale	−7.31K	$364.25	$2.66M	2.2%	328.06K	320.75K
Common Stock Indirect	6/3/2026	S · Sale	−580.00	$364.25	$211.26K	9.7%	5.95K	5.37K
Common Stock Direct	6/3/2026	S · Sale	−428.00	$365.09	$156.26K	0.7%	60.56K	60.13K
Common Stock Indirect	6/3/2026	S · Sale	−1.02K	$365.09	$372.02K	0.3%	320.75K	319.73K
Common Stock Indirect	6/3/2026	S · Sale	−81.00	$365.09	$29.57K	1.5%	5.37K	5.29K
Common Stock Direct	6/4/2026	A · Award	+837.00	—	—	1.4%	60.13K	60.97K
Total			−11.66K		-$4.55M

Derivative Transactions0

No derivative transactions reported

Non-Derivative Holdings (Post-Transaction)5

Common Stock

Indirect

Shares owned3.77K

Common Stock

Indirect

Shares owned3.77K

Common Stock

Indirect

Shares owned3.77K

Common Stock

Indirect

Shares owned3.77K

Common Stock

Indirect

Shares owned3.77K

Total

18.83K indirect18.83K

Security Title	Shares Owned	Ownership Type
Common Stock	3.77K	Indirect
Common Stock	3.77K	Indirect
Common Stock	3.77K	Indirect
Common Stock	3.77K	Indirect
Common Stock	3.77K	Indirect
Total	18.83K	18.83K indirect

Derivative Holdings (Post-Transaction)0

No derivative holdings reported