144 ·Filed Apr 17, 2026

ALAB

Astera Labs, Inc.
NEUTRAL
Impact 3/10
Horizondays Processed6mo ago SEC0001973251-26-000013
Form 144 — notice of proposed sale of securities
Actionable Insight • Neutral

Monitor for follow-up Form 4 filings to confirm execution of the remaining proposed sales. Given recent insider selling trends ($21.7M in 30 days), assess whether this reflects routine portfolio management or broader sentiment about valuation or outlook.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
ALAB ▲ +99.44% at T+60d
NEUTRAL call ✓ call won +99.44% · α vs SPY +92.66% · entry $175.80 → $350.62
Entry anchored
Apr 17, 03:59 PM ET
via exchange tick
T+1d
+9.20%
call +9.20% · α +9.85%
$191.97
settled 6mo ago
T+5d
+11.85%
call +11.85% · α +10.94%
$196.64
settled 6mo ago
T+20d
+22.63%
call +22.63% · α +18.43%
$215.58
settled 5mo ago
T+60d
+99.44%
call +99.44% · α +92.66%
$350.62
settled 3mo ago

Price Chart

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Executive Summary

Stefan A. Dyckerhoff, an affiliate of Astera Labs, filed a Form 144 to report the proposed sale of up to 24,998 shares, with approximately 10,698 shares already sold on April 17, 2026. The filing reflects ongoing insider selling activity, consistent with recent trends.

Key Facts

  • Reporting owner: Stefan A. Dyckerhoff, affiliate of Astera Labs
  • Total shares covered by Form 144: 24,998
  • Approximately 10,698 shares were already sold on April 17, 2026, through a trust, IRA, and limited partnership linked to Dyckerhoff
  • Shares to be sold: Common stock
  • Broker: Stifel
  • Exchange: NASDAQ
  • Filing date: April 17, 2026

Financial Impact

Approximately 10,698 shares sold at ~$4,374.65 per share, totaling ~$47 million (based on reported total value of $170,210,000 for 24,998 shares)

insider ownershippotential share dilutionmarket sentiment

Risk Factors

  • Potential perception of insider pessimism if selling continues aggressively
  • Increased near-term supply of shares could pressure stock price if market absorbs large volume

Market Snapshot

Exchange
Nasdaq
Sector
Semiconductors & Related Devices

Investment Themes

Semiconductors

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001973251-26-000013
Document: 0001973251-26-000013-index.html0001973251-26-000013
Document: 0001973251-26-000013.txt0001973251-26-000013
28 reports for ALAB
Performance horizon
60% Hit rate 6 of 10 directional calls best @ T+20▲ +69.95%May 5, 2026
Filters
Rows
Reports for ALAB — sortable, filterable
TypeNow
Sep 2, 2026
6w ago
144
BEARISH ★ 6/10
$274.13 $355.97▼ −29.85%▼ −30.19%$285.82 (−4.26%)
Sep 1, 2026
6w ago
144
NEUTRAL ★ 4/10
$274.13 $355.97▲ +29.85%▲ +30.19%$285.82 (+4.26%)
Aug 19, 2026
8w ago
Insider Cluster
NEUTRAL ★ 2/10
$289.02 $293.56▲ +1.57%▲ +2.41%$285.82 (−1.11%)
Aug 4, 2026
10w ago
8-K
BULLISH ★ 8/10
$318.43 $274.13▼ −13.91%▼ −13.31%$285.82 (−10.24%)
Jul 23, 2026
12w ago
Institutional Cluster
MIXED ★ 5/10
$326.97 $290.52▼ −11.15%▼ −14.46%$285.82 (−12.59%)
Jul 7, 2026
14w ago
Insider Cluster
NEUTRAL ★ 2/10
$382.89 $321.05▼ −16.15%▼ −17.48%$285.82 (−25.35%)
Jul 2, 2026
15w ago
Insider Cluster
NEUTRAL ★ 2/10
$406.42 $299.69▼ −26.26%▼ −25.85%$285.82 (−29.67%)
Jul 1, 2026
15w ago
144
NEUTRAL ★ 2/10
$430.86 $249.74▼ −42.04%▼ −39.85%$285.82 (−33.66%)
Jun 24, 2026
16w ago
144
NEUTRAL ★ 2/10
$398.00 $326.97▼ −17.85%▼ −18.38%$285.82 (−28.19%)
Jun 11, 2026
18w ago
Institutional Cluster
BULLISH ★ 6/10
$367.15 $412.97▲ +12.48%▲ +10.70%$285.82 (−22.15%)
Showing 10 of 28

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