ASX ASE Technology Holding Co., Ltd.

BEARISH Impact: 7/10 Insider Cluster (2 insiders)
Horizon days Filed Apr 20, 2026 Processed 1mo ago
Insider cluster: 2 insiders, $156.7M total
Latest settled — T+20d ⚠ clustered
ASX ▲ +8.09% at T+20d
SHORT call ✗ call lost -8.09% · α vs SPY -3.89% · entry $29.28 → $31.65
Next anchor: T+60d in 5w
Currently $35.08 · -19.81% from $29.28 entry (call sign-flipped)
Entry anchored
Apr 17, 03:59 PM ET
via Databento tick
T+1d
+1.09%
call -1.09% · α -1.75%
$29.60
settled 7w ago
T+5d
+5.36%
call -5.36% · α -4.45%
$30.85
settled 7w ago
T+20d
+8.09%
call -8.09% · α -3.89%
$31.65
settled 26d ago
T+60d
call — · α —
in 5w

Price Chart

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Executive Summary

Two insiders at ASE Technology sold a combined $156.73 million in shares over a 7-day window, led by General Manager Chen Tien-Szu who sold $152.55 million. The sales represent a significant portion of insider activity and are notable given the high dollar volume relative to the company's market cap.

Key Financial Metrics

Direction
selling
Total Value
$156.7M
Insiders
2

Actionable Insight

The scale and concentration of selling, especially by a senior executive like Chen Tien-Szu, suggests potential lack of confidence in near-term prospects. Traders should monitor upcoming earnings and any changes in semiconductor demand trends for confirmation of weakening fundamentals.

Key Facts

  • Chen Tien-Szu, GM of ASE Inc. Chung-Li Branch, sold 328,000 shares for $152.55 million in an open-market transaction.
  • Director Chen Jeffrey sold 9,000 shares for $4.17 million on 2026-04-21, part of a series of open-market sales totaling over $18 million in one week.
  • Total insider selling in the last 7 days amounts to $189 million, with this cluster representing the bulk of that volume.
  • All transactions were open-market sales (S), indicating deliberate divestment rather than routine or non-cash events.

Financial Impact

$156.73 million in insider sales over 7 days, representing approximately 0.24% of the $66.7B market cap.

insider ownershipmarket sentimentfloat

Risk Factors

  • Large insider sales can signal negative sentiment, especially when concentrated among senior executives.
  • Potential for downward price pressure if more insiders follow suit or if institutional holders interpret this as a bearish signal.

Market Snapshot

Exchange
NYSE
Sector
Semiconductors & Related Devices

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ASX-1776939161090
8 reports for ASX
Performance horizon
75% Hit rate 3 of 4 directional calls best @ T+20▲ +36.08%Apr 1, 2026
Filters
Rows
Reports for ASX — sortable, filterable
Type Now
Jun 9, 2026
today
6-K
BULLISH ★ 6/10
awaiting T+1
Jun 3, 2026
6d ago
Insider Cluster
NEUTRAL ★ 2/10
$39.91 $38.40▼ −3.78%▼ −4.18%$35.08 (−12.10%)
May 8, 2026
4w ago
6-K
BULLISH ★ 6/10
$34.23 $35.30▲ +3.13%▲ +2.89%$35.08 (+2.48%)
Apr 29, 2026
5w ago
6-K
BULLISH ★ 7/10
$30.59 $31.41▲ +2.68%▲ +1.66%$35.08 (+14.68%)
Apr 20, 2026
7w ago
Insider Cluster
BEARISH ★ 7/10
$29.28 $29.60▼ −1.09%▼ −1.75%$35.08 (−19.81%)
Apr 20, 2026
7w ago
Insider Cluster
BEARISH ★ 7/10
$29.28 $29.60▼ −1.09%▼ −1.75%$35.08 (−19.81%)
Apr 8, 2026
8w ago
6-K
NEUTRAL ★ 3/10
$24.14 $24.51▲ +1.53%▲ +0.96%$35.08 (+45.32%)
Apr 1, 2026
9w ago
20-F
BULLISH ★ 8/10
$22.48 $22.28▼ −0.89%▼ −0.97%$35.08 (+56.05%)
Showing 8 of 8

US Market Status

Market Closed — Opens Thu (10h 6m)

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