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AAOI APPLIED OPTOELECTRONICS, INC. Insider Trading

Latest: President and CEO Sold $10.0M of Shares · May 2026

Multiple insiders have been active at APPLIED OPTOELECTRONICS, INC. (AAOI): 10 distinct insiders account for 6 buy filings and 27 sell filings as of Jun 2026. Its highest-significance filing in the last 90 days: President and CEO Lin Chih-Hsiang (Thompson) sold $10.0M, transaction dated May 2026.

33 filings analyzed · Latest 2026-06-18

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Buys
6
Sells
27
Insiders
10
Direction
Net selling

APPLIED OPTOELECTRONICS, INC. leadership

CEO
Chih-Hsiang (Thompson) Lin — President and Chief Executive Officer
CFO
Stefan J. Murry — Chief Financial Officer and Chief Strategy Officer
General Counsel
David C. Kuo — Senior Vice President, Chief Legal Officer, Chief Compliance Officer and Corporate Secretary
Chair
Chih-Hsiang (Thompson) Lin — Chairman and Chief Executive Officer

Historically, stocks have lagged the S&P 500 by a median ~3% over the 90 days after a medium insider sell (n ≈ 4,738, 2024-2026). Past results don't predict the future. How we measure this ↗

June 2026
2026-06-18 10b5-1 Plan
medium
*** See Remarks
40,329 shares
$6,880,127
@ $170.60
Significance 5

AAOI CFO Hung-Lun Chang sells 40,329 shares for $6.9M under 10b5-1 plan; stock down 30.7% from 52-week high despite 84.9% 90-day rally

Hung-Lun (Fred) Chang sold 40,329 shares of APPLIED OPTOELECTRONICS, INC. (AAOI) at $170.60 on 2026-06-17 for $6,880,127.40, reducing his holdings from 326,453 to 286,124 shares. This transaction is part of a pre-arranged 10b5-1 trading plan adopted on 2026-03-18, meaning it was scheduled rather than discretionary. The sale occurs against a mixed price backdrop: the stock currently trades at $161.85, down 30.7% from its 52-week high of $233.67 but up 84.9% over the prior 90 days and up 30-day return of -5.5%. The company's fundamentals show strong revenue growth at 82.8% year-over-year ($151.1M in latest quarter), but it remains unprofitable with negative full-year net income of -$14.3M. The scheduled nature of this transaction under a 10b5-1 plan removes discretionary signal value; what merits attention is the gap between the company's aggressive revenue expansion and its sustained losses, which contextualizes sustained insider selling activity.

2026-06-18 10b5-1 Plan
medium
*** See Remarks
6,000 shares
$1,031,340
@ $171.89
Significance 4

AAOI insider sells 6,000 shares at $171.89 via pre-arranged 10b5-1 plan; stock now -30.7% from 52-week high.

Shu-Hua (Joshua) Yeh sold 6,000 shares (6.0K shares) of APPLIED OPTOELECTRONICS, INC. (AAOI) at $171.89 on 2026-06-18 as part of a pre-arranged 10b5-1 trading plan adopted on the same date—a scheduled transaction rather than a discretionary choice. This represents a -1.5% reduction of his pre-transaction holdings of 400.2K shares. The stock has since declined to a current price of $161.85, down -30.7% from the 52-week high of $233.67. AAOI remains deeply unprofitable with net income of $-14.3M in the latest quarter and a full-year net income in negative territory, despite strong revenue growth of +82.8% year-over-year and a substantial market cap of $13.0B. The sale falls within a pattern of recent insider sell activity at AAOI, with three prior sales in early June and May 2026 that have not yet yielded measurable 30- or 90-day returns. The 10b5-1 structure removes discretionary timing as a signal.

2026-06-16
high
*** See Remarks
28,826 shares
$4,800,394
@ $166.53
Significance 6

AAOI insider Shu-Hua Yeh sold 28.8K shares at $166.53; stock down -26.9% from 52-week high despite +84.4% 90-day surge.

Shu-Hua (Joshua) Yeh sold 28,826 shares of AAOI on 2026-06-12 at $166.53, reducing holdings by 6.7% to 400,207 shares and realizing $4,800,393.78. The timing coincides with heightened volatility: AAOI is -26.9% below its 52-week high of $233.67, -10.3% over 30 days, yet up 84.4% over 90 days. At the same ticker, Yeh executed four prior trades, three within the past month (2026-06-04 and 2026-05-19), all sales; only one prior AAOI sale is measurable for timing (2026-03-09), which posted a +82.3% 90-day return, indicating the stock rose after that sale—poorly timed. Fundamentally, AAOI generated $151,144,000.00 in quarterly revenue with annual growth of +82.8% but posted a net loss of $-14,281,000.00 over its most recent period and was unprofitable over its most recent full fiscal year, creating a disconnect between rapid revenue scaling and ongoing losses.

2026-06-16
medium
Chief Financial Officer
33,000 shares
$5,495,490
@ $166.53
Significance 5

CFO Stefan J. Murry sold 33,000 AAOI shares at $166.53 for $5,495,490.00; stock now -26.9% from 52-week high

Stefan J. Murry sold 33,000 shares (-7.9% of his pre-transaction holdings) on 2026-06-12 at $166.53, which was before the stock's recent 30-day decline of -10.3%. At the same ticker, his 5 prior sells have shown mixed outcomes: post-sale gains ranged from +1.1% to +274.7% over 90 days, with none of these prior 5 trades being well-timed (0 of 5 at the 90-day mark). The company generated $151,144,000.00 in latest-quarter revenue with +82.8% annual growth, but posted $-14,281,000.00 in net income and remains unprofitable on a full-year basis. The sale reduces his stake to 384,576 shares post-transaction, and the current price of $170.81 represents a -26.9% decline from the 52-week high of $233.67.

2026-06-16
high
President and CEO
59,000 shares
$9,825,270
@ $166.53
Significance 6

CEO Chih-Hsiang Lin sells 59,000 AAOI shares at $166.53; stock now $170.81 despite 90d rally +84.4%

Chih-Hsiang (Thompson) Lin, President and CEO, sold 59,000 shares on 2026-06-12 at $166.53, reducing his holdings from 1.36M to 1.30M shares (-4.3%). The timing is noteworthy: the stock has rallied 84.4% over the past 90 days and currently trades at $170.81, yet the CEO executed this sale below current prices. His prior AAOI trades (4 of 4 measurable) achieved well-timed outcomes, though his cross-ticker track record shows 1 prior sell with limited outcome data. The company is unprofitable (net income $-14.3M) despite strong revenue growth of 82.8% year-over-year, operating at a $13.7B market cap. The sale occurs within a broader pattern of recent selling activity (a prior sale on 2026-05-19 outcome not yet measurable), warranting examination of whether this reflects changed conviction regarding valuation or near-term prospects.

2026-06-16
medium
*** See Remarks
29,227 shares
$4,867,172
@ $166.53
Significance 6

David C Kuo sold 29,227 shares of AAOI at $166.53 (total $4.9M); stock now at $170.81, -26.9% from 52-week high.

David C Kuo sold 29,227 shares of APPLIED OPTOELECTRONICS, INC. at $166.53 on 2026-06-12, reducing his holdings by 16.4% to 149,078 shares. The company posted annual revenue growth of 82.8% and a market cap of $13,706,267,031.27, but reported a net loss of $-14,281,000.00 in the latest quarter and remains unprofitable on a full-year basis. At this ticker specifically, Kuo's prior sell on 2026-02-11 was followed by a 90-day return of +275.3%, and his 2026-02-10 sale by a +269.8% 90-day return—both periods the stock rose substantially after the sale, indicating poorly-timed exits from a timing perspective. His current sale occurs as the stock trades at $170.81, representing a -26.9% decline from its 52-week high of $233.67 and a -10.3% move over the prior 30 days, suggesting the insider is liquidating a meaningful portion of his stake into recent weakness while the company operates at a loss despite strong revenue growth.

2026-06-16
medium
*** See Remarks
34,000 shares
$5,662,020
@ $166.53
Significance 5

Hung-Lun (Fred) Chang sold 34,000 shares of AAOI at $166.53 on 2026-06-12 for $5,662,020.00; stock now -26.9% from 52-week high.

Hung-Lun (Fred) Chang sold 34,000 shares at $166.53, reducing his holdings by 9.4% versus pre-transaction levels. Applied Optoelectronics is unprofitable with a full fiscal year net income of $-14,281,000.00, yet has achieved annual revenue growth of +82.8%. The sale occurs with the stock trading at $170.81, down 10.3% over the past 30 days and down 26.9% from its 52-week high of $233.67. Across his two prior sells at AAOI, one measurable outcome (2026-03-16 sale) showed a 90-day return of +68.6%, indicating the stock rose after that earlier sale; his broader cross-ticker track record of 2 prior sells shows 0.00% well-timed rate at the 90-day mark.

2026-06-11 10b5-1 Plan
low
Chief Financial Officer
4,000 shares
$685,800
@ $171.45
Significance 4

CFO Stefan J. Murry sold 4,000 shares of AAOI at $171.45 under pre-arranged 10b5-1 plan; stock now -26.1% from 52-week high.

Stefan J. Murry, Chief Financial Officer of Applied Optoelectronics, executed a sale of 4,000 shares at $171.45 on 2026-06-10 as part of a pre-arranged 10b5-1 trading plan adopted on 2025-08-12, meaning this was a scheduled transaction rather than a discretionary decision. The sale represents a minimal reduction in his position—from 451,906 shares to 447,906 shares, a -0.9% decrease—while the company carries negative profitability ($-14,281,000.00 net income in the latest quarter) despite strong revenue growth of +82.8% year-over-year. His prior trades at AAOI show mixed near-term outcomes: three of five prior sales realized single-digit 30-day returns (+1.1%, +9.8%, +9.1%), while two realized substantial gains (+92.6%, +112.4%), though these outcomes do not necessarily inform the forward signal of the current scheduled sale. The stock currently trades at $172.78, down -26.1% from its 52-week high of $233.67 and down -8.2% over the past 30 days, creating a context where the CFO maintains a very large remaining stake (447.9K shares) despite ongoing operational losses.

2026-06-08
medium
*** See Remarks
10,000 shares
$2,050,700
@ $205.07
Significance 4

Director Shu-Hua Yeh sells 10,000 shares at $205.07 avg; stock now $196.64; company unprofitable but +82.8% revenue growth

Shu-Hua (Joshua) Yeh sold 10,000 shares on 2026-06-04 in two separate transactions at blended average price $205.07, netting $2,050,700.00. The sale reduces his holdings by -2.2% to 452,430 shares. At current price of $196.64, the stock has declined -15.8% from its 52-week high of $233.67, though it is up +32.0% over 30 days and +63.2% over 90 days. Across his prior AAOI trades (2 sells in May and March 2026), neither was well-timed at the 90-day mark—the stock subsequently gained +2.2% and +82.3% respectively. Fundamentally, the company posted $151,144,000.00 in quarterly revenue with +82.8% annual growth but reported net income of $-14,281,000.00, indicating ongoing unprofitability despite strong top-line expansion.

2026-06-04
medium
8,247 shares
$1,657,647
@ $201.00
Significance 6

Director Min-Chu Chen sold 8,247 shares of AAOI at $201.00 for $1,657,647.00; stock since rallied +112.3% in 90 days.

Min-Chu Chen sold 8,247 shares at $201.00 on 2026-06-02, reducing his holding from 169,300 to 161,053 shares. The sale preceded a substantial rally: the stock gained +112.3% over the following 90 days and +12.4% in the 30 days immediately after the transaction. At his prior two sales at AAOI (2026-03-09 and 2026-03-06), the stock also rose post-trade by +69.3% and +89.8% at the 90-day mark, indicating a historical pattern of selling into strength before continued appreciation rather than executing well-timed exits before declines. The company remains unprofitable (net income $-14.3M) despite strong revenue growth of +82.8%, and the current price of $202.89 is now -13.2% from its 52-week high, suggesting the post-sale gains did not persist indefinitely. For investors, the repeated pattern of Chen selling while the stock continues upward warrants tracking whether this reflects portfolio rebalancing activity or a mismatch between his transaction timing and AAOI's momentum.

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