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Insider Cluster (2 insiders) ·Filed Sep 10, 2026

AAOI

APPLIED OPTOELECTRONICS, INC.
BEARISH
Impact 5/10
Horizonweeks Processed1mo ago
Insider cluster: 2 insiders, $4.0M total
Actionable Insight ▼ Bearish

The CEO's large open-market sale without a disclosed trading plan is a strong bearish signal, especially given the cluster with the CFO. Monitor for upcoming earnings or material news that may have prompted the sales; the next 10-Q filing will clarify if fundamentals are deteriorating.

DirectionBearish
Confidencehigh
Horizonweeks
Latest settled — T+20d
AAOI ▲ +4.06% at T+20d
SHORT call ✗ call lost -4.06% · α vs SPY -1.94% · entry $105.36 → $109.64
Next anchor: T+60d in 6w
Latest observation: T+30 +6.84% FF3 residual α
Entry = T+0 close
Sep 11, 2026
via day close
T+1d
-9.11%
call +9.11% · α +8.67%
$95.76
settled 6w ago
T+5d
-0.18%
call +0.18% · α +0.09%
$105.17
settled 6w ago
T+20d
+4.06%
call -4.06% · α -1.94%
$109.64
settled 18d ago
T+60d
Pending
in 6w

Price Chart

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Executive Summary

Two AAOI insiders, including CEO Chang Hung-Lun (Fred) and CFO Stefan J. Murry, sold a combined $3.97M in open-market sales over a one-week window. The CEO's $3.55M sale is the dominant transaction, representing approximately 1.2% of the company's $326M market cap — a material insider sell signal. CFO's $421K sale adds to the bearish cluster, with no indication of 10b5-1 plan use.

Key Financial Metrics

Direction
selling
Total Value
$4.0M
Insiders
2

Key Facts

  • CEO Chang Hung-Lun (Fred) sold 32,200 shares at $110.21 for $3.55M on 2026-09-08
  • CFO Stefan J. Murry sold 4,000 shares at $105.33 for $421K on 2026-09-10
  • Total insider sales of $3.97M represent ~1.2% of AAOI's $326M market cap
  • Both sales are open-market (code S) with no 10b5-1 plan indicated
  • CEO sale alone is 0.9% of market cap — above the 0.5% materiality threshold

Financial Impact

Total insider sales of $3.97M, or ~1.2% of market cap, concentrated in CEO and CFO

insider ownershipmarket confidence

Risk Factors

  • CEO selling a material stake may signal lack of confidence in near-term prospects
  • Cluster sales by top executives increase risk of negative news or earnings miss
  • Stock may face selling pressure as market interprets insider activity

Investment Themes

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-AAOI-1789708654123
20 reports for AAOI
Performance horizon
75% Hit rate @ T+20 3 of 4 directional calls Went positive at some point 4 of 4 best @ T+60▲ +36.68%Jun 8, 2026
Filters
Rows
Reports for AAOI — sortable, filterable
TypeNow
Oct 21, 2026
5d ago
Institutional Cluster
MIXED ★ 3/10
$68.07awaiting T+20—$71.94 (+5.69%)
Oct 15, 2026
11d ago
Press Release
NEUTRAL ★ 1/10
$75.57awaiting T+20—$71.94 (−4.80%)
Sep 10, 2026
6w ago
Insider Cluster
NEUTRAL ★ 2/10
$105.36 $109.64▲ +4.06%▲ +2.19%$71.94 (−31.72%)
Sep 10, 2026
6w ago
Insider Cluster
BEARISH ★ 5/10
$105.36 $109.64▼ −4.06%▼ −1.94%$71.94 (+31.72%)
Aug 12, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$130.08 $105.36▼ −19.00%▼ −17.26%$71.94 (−44.70%)
Aug 1, 2026
12w ago
Institutional Cluster
MIXED ★ 4/10
$110.21 $107.69▼ −2.29%▼ −3.52%$71.94 (−34.72%)
Jun 16, 2026
18w ago
8-K
NEUTRAL ★ 4/10
$167.34 $100.24▼ −40.10%▼ −41.42%$71.94 (−57.01%)
Jun 16, 2026
18w ago
Insider Cluster
NEUTRAL ★ 4/10
$167.34 $100.24▼ −40.10%▼ −41.42%$71.94 (−57.01%)
Jun 8, 2026
20w ago
Insider Cluster
BEARISH ★ 4/10
$162.88 $114.41▲ +29.76%▲ +31.20%$71.94 (+55.83%)
Jun 8, 2026
20w ago
Insider Cluster
NEUTRAL ★ 2/10
$162.88 $114.41▼ −29.76%▼ −31.20%$71.94 (−55.83%)
Showing 10 of 20

US Market Status

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Report published Sep 10, 2026