$AAOI

$76.90 +$4.96 (6.89%) Live

$AAOI Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 84.6M shares outstanding

Who owns AAOI?

By type of holder

Institutions 59.5% Insiders 0.5% Everyone else 40.0%

Concentration Top 10 holders own 31.2%

BlackRock, Inc. 7.6% · Invesco Ltd. 4.0%

Institutional ownership

59.5%

-3.2 pts vs last qtr

Institutional holders

478

+103 vs last qtr

Net shares bought

−2.7M

by institutions in Q2 2026

New / sold out

174 / 71

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Marex Group Ltd +2.5M
Invesco Ltd. +1.4M

Biggest sellers in Q2 2026

D. E. Shaw & Co., Inc. −2.1M
Jane Street Group, LLC −1.7M

Who is planning to sell?

Notices of proposed sale, last 12 months

$134M

47 notices from 11 people

Shares covered

960.2K

1.14% of the company

Arranged in advance

16%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Chang Hung-Lun (Fred) Officer $28.4M
Yeh Shu-Hua (Joshua) Officer $25.5M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+239.8%

+14.56% a year

Each share's claim on the business

−70.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $108M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years41% 3–5 years2% 1–3 years24% Under 1 year33%

Quarterly turnover

30.1%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting AAOI on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	6.5M	7.63%	−742.1K (−10.3%)	≤2021	0.0%
Shares held by quarter Peak holding7.2M (Q1'26) Change over 8 quarters+3.4M Share of the company7.630% BlackRock, Inc.'s full portfolio →
I Invesco Ltd.	3.4M	4.04%	+1.4M (+69.5%)	2023	0.0%
Shares held by quarter Peak holding3.5M (Q4'25) Change over 8 quarters+2.9M Share of the company4.040% Invesco Ltd.'s full portfolio →

BlackRock, Inc.

6.5M

% of company

7.63%

Change vs last qtr

−742.1K (−10.3%)

Held since

≤2021

Invesco Ltd.

3.4M

% of company

4.04%

Change vs last qtr

+1.4M (+69.5%)

Held since

2023

28 more super investors behind a free account

See every manager holding Applied Optoelectronics, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AAOI on Form N-PORT; together they hold 30.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$359M	2.4M	2.86%	0.02%	June 30, 2026
OS Oberweis Small-Cap Opportunities Fund Oberweis Funds	$159M	1.1M	1.27%	5.59%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$359M

% of company

2.86%

% of the fund

0.02%

As of

June 30, 2026

Oberweis Small-Cap Opportunities Fund

Oberweis Funds

Position value

$159M

% of company

1.27%

% of the fund

5.59%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Applied Optoelectronics, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
YW Yeh William H Insider	99.0K	0.12%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.120% Yeh William H's insider activity →
LC Lin Chih-Hsiang (Thompson) Insider	93.4K	0.11%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.110% Lin Chih-Hsiang (Thompson)'s insider activity →

Yeh William H

Insider

99.0K

% of company

0.12%

Change vs last qtr

—

Held since

—

Lin Chih-Hsiang (Thompson)

Insider

93.4K

% of company

0.11%

Change vs last qtr

—

Held since

—

7 more holders behind a free account

See every insider and 5%+ holder of Applied Optoelectronics, Inc..

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