Skip to content

Nasdaq · CIK 0001158114

AAOI APPLIED OPTOELECTRONICS, INC.

Insider trading from SEC Form 4. Last filing 6 d ago. Close $109.64 on Oct 9, 2026, +463% from the 52-week low and -51% from the high.

APPLIED OPTOELECTRONICS, INC. (AAOI) has 141 SEC Form 4 filings on file from 12 insiders, the latest filed on Oct 7, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 3 open-market sells worth $4.7M, net -$4.7M.

73 open-market trades have been scored at AAOI. The newest: Shu-Hua (Joshua) Yeh (*** See Remarks) sold $720k of stock on Oct 5, 2026, filed Oct 7, 2026, scored 16 (weak), under a 10b5-1 plan. The largest of the 50 shown: Cynthia DeLaney (director) sold $11M on May 26, 2026, scored 65 (notable). 2 insiders sold within 14 days of each other around Sep 10, 2026.

AAOI closed at $109.64 on Oct 9, 2026, 463% above its 52-week low and 51% below its 52-week high.

25 Form 144 notices of planned sales are on file, the latest filed Mar 19, 2026.

Last 90 days

Net insider value
-$4.7M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
3
$4.7M by 3 insiders
Insiders on file
12
with a Form 4 at this company

Price and insider trades, last year

AAOIOct 9, 2026 · close 109.64

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at APPLIED OPTOELECTRONICS, INC., scored: the newest 50 of 73.

ScoreInsiderValueHoldingsPrice contextFiled
16WeakShu-Hua (Joshua) Yeh
*** See Remarks
sell
$720k
6,000 shares
-2%+524% from low-46% from high
26WeakStefan J. Murry
Chief Financial Officer
sell
$421k
4,000 shares
-1%+430% from low-54% from high
53ModerateHung-Lun (Fred) Chang
*** See Remarks
sell
$3.5M
32,172 shares
-11%+472% from low-50% from high
35WeakShu-Hua (Joshua) Yeh
*** See Remarks
sell
$1.0M
6,000 shares
-1%+730% from low-27% from high
40ModerateHung-Lun (Fred) Chang
*** See Remarks
sell
$6.9M
40,329 shares
-12%+897% from low-25% from high
55ModerateHung-Lun (Fred) Chang
*** See Remarks
sell
$5.7M
34,000 shares
-9%+993% from low-24% from high
60NotableDavid C Kuo
*** See Remarks
sell
$4.9M
29,227 shares
-16%+993% from low-24% from high
65NotableChih-Hsiang (Thompson) Lin
President and CEO
sell
$9.8M
59,000 shares
-4%+993% from low-24% from high
62NotableStefan J. Murry
Chief Financial Officer
sell
$5.5M
33,000 shares
-8%+993% from low-24% from high
55ModerateShu-Hua (Joshua) Yeh
*** See Remarks
sell
$4.8M
28,826 shares
-7%+993% from low-24% from high
38WeakStefan J. Murry
Chief Financial Officer
sell
$686k
4,000 shares
-1%+1032% from low-22% from high
55ModerateShu-Hua (Joshua) Yeh
*** See Remarks
sell
$2.1M
10,000 shares
-2%+1212% from low-9% from high
52ModerateHung-Lun (Fred) Chang
*** See Remarks
sell
$800k
4,000 shares
-1%+1044% from low-21% from high
55ModerateMin-Chu (Mike) Chen
director
sell
$1.7M
8,247 shares
-5%+1208% from low-9% from high
65NotableCynthia DeLaney
director
sell
$11M
56,575 shares
-49%+1052% from low-20% from high
55ModerateHung-Lun (Fred) Chang
*** See Remarks
sell
$5.8M
33,630 shares
-8%+1011% from low-23% from high
55ModerateDavid C Kuo
*** See Remarks
sell
$3.3M
19,227 shares
-9%+1011% from low-23% from high
65NotableChih-Hsiang (Thompson) Lin
President and CEO
sell
$10M
58,000 shares
-3%+1011% from low-23% from high
62NotableStefan J. Murry
Chief Financial Officer
sell
$5.7M
33,000 shares
-7%+1011% from low-23% from high
55ModerateShu-Hua (Joshua) Yeh
*** See Remarks
sell
$6.8M
39,154 shares
-8%+1011% from low-23% from high
37WeakStefan J. Murry
Chief Financial Officer
sell
$638k
4,000 shares
-1%+1099% from low0% from high
21WeakStefan J. Murry
Chief Financial Officer
sell
$546k
4,000 shares
-1%+1399% from low0% from high
65NotableDavid C Kuo
*** See Remarks
sell
$2.9M
29,000 shares
-26%+914% from low-20% from high
60NotableHung-Lun (Fred) Chang
*** See Remarks
sell
$3.6M
36,400 shares
-13%+836% from low-26% from high
34WeakStefan J. Murry
Chief Financial Officer
sell
$451k
4,000 shares
-1%+1099% from low0% from high
55ModerateWilliam H Yeh
director
sell
$1.6M
15,000 shares
-6%+1001% from low0% from high
40ModerateShu-Hua (Joshua) Yeh
*** See Remarks
sell
$4.9M
50,000 shares
-13%+1001% from low0% from high
75NotableMin-Chu (Mike) Chen
director
sell
$1.2M
11,335 shares
-50%+851% from low-7% from high
44ModerateRichard B Black
director
sell
$307k
3,231 shares
-2%+906% from low-1% from high
60NotableCynthia DeLaney
director
sell
$2.1M
21,000 shares
-15%+892% from low-3% from high
75NotableElizabeth G Loboa
director
sell
$9.8M
102,347 shares
-83%+849% from low-7% from high
31WeakStefan J. Murry
Chief Financial Officer
sell
$300k
5,980 shares
-2%+414% from low0% from high
33WeakDavid C Kuo
*** See Remarks
sell
$1.0M
20,000 shares
-15%+382% from low0% from high
34WeakStefan J. Murry
Chief Financial Officer
sell
$899k
18,020 shares
-6%+382% from low0% from high
22WeakDavid C Kuo
*** See Remarks
sell
$541k
12,000 shares
-9%+350% from low0% from high
10WeakStefan J. Murry
Chief Financial Officer
sell
$2,311
66 shares
-0%+268% from low-10% from high
13WeakStefan J. Murry
Chief Financial Officer
sell
$134k
3,934 shares
-1%+236% from low-18% from high
28WeakDavid C Kuo
*** See Remarks
sell
$502k
12,500 shares
-9%+304% from low-1% from high
40ModerateElizabeth G Loboa
director
sell
$125k
4,121 shares
-3%+198% from low-27% from high
28WeakStefan J. Murry
Chief Financial Officer
sell
$126k
4,000 shares
-1%+248% from low-15% from high
36WeakDavid C Kuo
*** See Remarks
sell
$45k
2,000 shares
-1%+123% from low-49% from high
48ModerateChe-Wei Lin
director
buy
$100k
4,609 shares
+2%+109% from low-52% from high
59ModerateChih-Hsiang (Thompson) Lin
President and CEO
buy
$174k
8,075 shares
+0%+109% from low-52% from high
50ModerateStefan J. Murry
Chief Financial Officer
sell
$268k
12,000 shares
-4%+123% from low-49% from high
45ModerateHung-Lun (Fred) Chang
*** See Remarks
sell
$358k
15,784 shares
-6%+129% from low-48% from high
59ModerateMin-Chu (Mike) Chen
director
buy
$172k
7,500 shares
+50%+129% from low-48% from high
64NotableChih-Hsiang (Thompson) Lin
President and CEO
buy
$423k
18,600 shares
+1%+127% from low-48% from high
57ModerateWilliam H Yeh
director
buy
$406k
18,000 shares
+8%+129% from low-48% from high
11WeakStefan J. Murry
Chief Financial Officer
sell
$82k
3,000 shares
-1%+188% from low-34% from high
7WeakStefan J. Murry
Chief Financial Officer
sell
$32k
2,000 shares
-1%+70% from low-61% from high

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Mar 19, 2026 Kuo David C
Officer
29,000
0.04% of outstanding
$2.9MMar 19, 2026$2.0M
Mar 16, 2026 Chang Hung-Lun (Fred)
Officer
36,400
0.05% of outstanding
$3.6MMar 16, 2026none
Mar 10, 2026 Murry Stefan J.
Officer
4,000
0.01% of outstanding
$451kMar 10, 2026$1.5M
Mar 9, 2026 Yeh William H
Director
15,000
0.02% of outstanding
$1.6MMar 9, 2026none
Mar 9, 2026 Yeh Shu-Hua (Joshua)
Officer
50,000
0.07% of outstanding
$4.9MMar 9, 2026none
Mar 6, 2026 Chen Min-Chu (Mike)
Officer
15,000
0.02% of outstanding
$1.5MMar 6, 2026none
Mar 5, 2026 BLACK RICHARD B
Director
3,231
0.00% of outstanding
$307kMar 5, 2026none
Mar 4, 2026 Cynthia DeLaney
Director of Board
21,000
0.03% of outstanding
$2.1MMar 4, 2026none
Mar 3, 2026 Loboa Elizabeth G
Director
102,347
0.14% of outstanding
$9.8MMar 3, 2026none
Feb 11, 2026 Kuo David C
Officer
17,467
0.03% of outstanding
$876kFeb 11, 2026$1.2M
Feb 11, 2026 Murry Stefan J.
Officer
17,673
0.03% of outstanding
$884kFeb 11, 2026$574k
Feb 10, 2026 Kuo David C
Officer
2,533
0.00% of outstanding
$127kFeb 10, 2026$1.0M
Feb 10, 2026 Murry Stefan J.
Officer
6,327
0.01% of outstanding
$311kFeb 10, 2026$262k
Jan 28, 2026 Kuo David C
Officer
12,000
0.02% of outstanding
$541kJan 28, 2026$502k
Jan 13, 2026 Murry Stefan J.
Officer
1,000
0.00% of outstanding
$35kJan 13, 2026$227k
Jan 12, 2026 Murry Stefan J.
Officer
3,000
0.00% of outstanding
$101kJan 12, 2026$126k
Dec 29, 2025 Kuo David C
Officer
12,500
0.02% of outstanding
$502kDec 23, 2025none
Dec 15, 2025 Loboa Elizabeth G
Director
4,121
0.01% of outstanding
$124kDec 15, 2025none
Dec 10, 2025 Murry Stefan J.
Officer
3,000
0.00% of outstanding
$91kDec 10, 2025none
Aug 15, 2025 Murry Stefan J.
Officer
12,000
0.02% of outstanding
$268kAug 15, 2025$114k
Aug 15, 2025 Kuo David C
Officer
2,000
0.00% of outstanding
$45kAug 15, 2025none
Aug 13, 2025 Chang Hung-Lun (Fred)
Officer
15,784
0.03% of outstanding
$357kAug 13, 2025none
Jul 16, 2025 Murry Stefan J.
Officer
3,000
0.01% of outstanding
$82kJul 16, 2025$71k
Jun 11, 2025 Murry Stefan J.
Officer
2,000
0.00% of outstanding
$33kJun 16, 2025$137k
May 16, 2025 Murry Stefan J.
Officer
2,000
0.00% of outstanding
$39kMay 16, 2025$147k

Transactions

The newest 50 of 306 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Oct 5, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value10b5-1
-6,000$120.03$720k371,4986 d ago
Sep 15, 2026Richard B Black
director
GGift
Common Stock, $.001 par valueindirect: By Trust
-2,200$0.00$0159,09226 d ago
Sep 10, 2026Stefan J. Murry
Chief Financial Officer
SOpen-market sale
Common Stock, $.001 par value10b5-1
-4,000$105.33$421k367,16833 d ago
Sep 8, 2026Hung-Lun (Fred) Chang
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-32,172$110.21$3.5M249,27633 d ago
Jun 18, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value10b5-1
-6,000$171.89$1.0M394,207Jun 18, 2026
Jun 17, 2026Hung-Lun (Fred) Chang
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value10b5-1
-40,329$170.60$6.9M286,124Jun 18, 2026
Jun 12, 2026Chih-Hsiang (Thompson) Lin
President and CEO
FTax withholding
Common Stock, $.001 par value
-86,655$172.78$15M1,361,436Jun 16, 2026
Jun 12, 2026David C Kuo
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-19,065$172.78$3.3M178,305Jun 16, 2026
Jun 12, 2026Stefan J. Murry
Chief Financial Officer
FTax withholding
Common Stock, $.001 par value
-30,330$172.78$5.2M417,576Jun 16, 2026
Jun 12, 2026Hung-Lun (Fred) Chang
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-27,297$172.78$4.7M360,453Jun 16, 2026
Jun 12, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-23,397$172.78$4.0M429,033Jun 16, 2026
Jun 12, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-28,826$166.53$4.8M400,207Jun 16, 2026
Jun 12, 2026Hung-Lun (Fred) Chang
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-34,000$166.53$5.7M326,453Jun 16, 2026
Jun 12, 2026David C Kuo
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-29,227$166.53$4.9M149,078Jun 16, 2026
Jun 12, 2026Chih-Hsiang (Thompson) Lin
President and CEO
SOpen-market sale
Common Stock, $.001 par value
-59,000$166.53$9.8M1,302,436Jun 16, 2026
Jun 12, 2026Stefan J. Murry
Chief Financial Officer
SOpen-market sale
Common Stock, $.001 par value
-33,000$166.53$5.5M384,576Jun 16, 2026
Jun 10, 2026Stefan J. Murry
Chief Financial Officer
SOpen-market sale
Common Stock, $.001 par value10b5-1
-4,000$171.45$686k447,906Jun 11, 2026
Jun 9, 2026Richard B Black
director
AGrant or award
Common Stock, $.001 par value
+1,166$0.00$0165,529Jun 11, 2026
Jun 9, 2026William H Yeh
director
AGrant or award
Common Stock, $.001 par value
+1,166$0.00$0239,985Jun 11, 2026
Jun 9, 2026Min-Chu (Mike) Chen
director
AGrant or award
Common Stock, $.001 par value
+1,166$0.00$0162,219Jun 11, 2026
Jun 9, 2026Cynthia DeLaney
director
AGrant or award
Common Stock, $.001 par value
+1,166$0.00$060,813Jun 11, 2026
Jun 9, 2026Che-Wei Lin
director
AGrant or award
Common Stock, $.001 par value
+1,166$0.00$0254,672Jun 11, 2026
Jun 9, 2026Robert James Flanagan
director
AGrant or award
Common Stock, $.001 par value
+1,166$0.00$01,166Jun 11, 2026
Jun 5, 2026Hung-Lun (Fred) Chang
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-4,000$200.07$800k387,750Jun 8, 2026
Jun 4, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-5,000$204.75$1.0M457,430Jun 8, 2026
Jun 4, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-5,000$205.39$1.0M452,430Jun 8, 2026
Jun 2, 2026Min-Chu (Mike) Chen
director
SOpen-market sale
Common Stock, $.001 par value
-8,247$201.00$1.7M161,053Jun 4, 2026
May 28, 2026Chih-Hsiang (Thompson) Lin
President and CEO
GGift
Common Stock, $.001 par valueindirect: By Lin Family Investment Holdings LLC
-85,790$0.00$0807,602Jun 1, 2026
May 28, 2026Chih-Hsiang (Thompson) Lin
President and CEO
GGift
Common Stock, $.001 par valueindirect: By Thompson Lin Family Trust
+85,790$0.00$085,790Jun 1, 2026
May 28, 2026Chih-Hsiang (Thompson) Lin
President and CEO
JOther
Common Stock, $.001 par valueindirect: By Lin Family Investment Holdings LLC
-721,812--807,602Jun 1, 2026
May 28, 2026Chih-Hsiang (Thompson) Lin
President and CEO
JOther
Common Stock, $.001 par valueindirect: By Thompson Lin Family Trust
+721,812--807,602Jun 1, 2026
May 26, 2026Cynthia DeLaney
director
SOpen-market sale
Common Stock, $.001 par value
-56,575$189.23$11M59,647May 28, 2026
May 15, 2026Hung-Lun (Fred) Chang
*** See Remarks
AGrant or award
Common Stock, $.001 par value
+224,199$0.00$0452,677May 19, 2026
May 15, 2026Chih-Hsiang (Thompson) Lin
President and CEO
AGrant or award
Common Stock, $.001 par value
+711,743$0.00$02,400,348May 19, 2026
May 15, 2026David C Kuo
*** See Remarks
AGrant or award
Common Stock, $.001 par value
+156,583$0.00$0235,661May 19, 2026
May 15, 2026Stefan J. Murry
Chief Financial Officer
AGrant or award
Common Stock, $.001 par value
+249,110$0.00$0515,236May 19, 2026
May 15, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
AGrant or award
Common Stock, $.001 par value
+192,170$0.00$0509,512May 19, 2026
May 19, 2026Hung-Lun (Fred) Chang
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-27,297$190.36$5.2M425,380May 19, 2026
May 19, 2026David C Kuo
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-19,064$190.36$3.6M216,597May 19, 2026
May 19, 2026Chih-Hsiang (Thompson) Lin
President and CEO
FTax withholding
Common Stock, $.001 par value
-86,655$190.36$16M2,313,693May 19, 2026
May 19, 2026Stefan J. Murry
Chief Financial Officer
FTax withholding
Common Stock, $.001 par value
-30,330$190.36$5.8M484,906May 19, 2026
May 19, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-7,928$190.36$1.5M501,584May 19, 2026
May 19, 2026Hung-Lun (Fred) Chang
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-33,630$173.26$5.8M391,750May 19, 2026
May 19, 2026David C Kuo
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-19,227$173.26$3.3M197,370May 19, 2026
May 19, 2026Chih-Hsiang (Thompson) Lin
President and CEO
SOpen-market sale
Common Stock, $.001 par value
-58,000$173.26$10M2,255,693May 19, 2026
May 19, 2026Stefan J. Murry
Chief Financial Officer
SOpen-market sale
Common Stock, $.001 par value
-33,000$173.26$5.7M451,906May 19, 2026
May 19, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
SOpen-market sale
Common Stock, $.001 par value
-39,154$173.26$6.8M462,430May 19, 2026
May 11, 2026Stefan J. Murry
Chief Financial Officer
SOpen-market sale
Common Stock, $.001 par value10b5-1
-4,000$159.53$638k266,126May 13, 2026
Apr 22, 2026Shu-Hua (Joshua) Yeh
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-2,553$150.57$384k319,498Apr 24, 2026
Apr 22, 2026David C Kuo
*** See Remarks
FTax withholding
Common Stock, $.001 par value
-2,053$150.57$309k80,610Apr 24, 2026
50 of 306 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about AAOI

Answered from the filings on this page, as of the latest one.

Are insiders buying AAOI?

As of Oct 7, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 3 open-market sells worth $4.7M by 3 insiders at APPLIED OPTOELECTRONICS, INC. in the last 90 days, net -$4.7M. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.

Who was the last insider to trade AAOI on the open market?

Shu-Hua (Joshua) Yeh (*** See Remarks) sold $720k of AAOI on Oct 5, 2026 and filed the Form 4 on Oct 7, 2026. InsiderTell scored 16 (weak), under a 10b5-1 plan.

How many insiders file Form 4 at APPLIED OPTOELECTRONICS, INC.?

12 people have filed a Form 4 at APPLIED OPTOELECTRONICS, INC., among them Richard B Black (director), Hung-Lun (Fred) Chang (*** See Remarks), Min-Chu (Mike) Chen (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.