AAOI at a glance
APPLIED OPTOELECTRONICS, INC. (AAOI, SEC CIK 1158114) filed its latest 10-K annual report on February 26, 2026, a 10-Q quarterly report on August 6, 2026, an 8-K current report on September 15, 2026 and Form 4 insider filings as recently as September 17, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended December 31, 2025 (FY2025), APPLIED OPTOELECTRONICS, INC. (AAOI) reported revenue of $455.7 million (up 82.8% from FY2024) and a net loss of $38.2 million. Diluted EPS was -$0.64.
- As of June 30, 2026, 37 institutional investment managers tracked by SignalX reported holding APPLIED OPTOELECTRONICS, INC. (AAOI) shares worth $3.9 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by Murry Stefan J. on September 10, 2026 of 4,000 shares at $105.33 per share.
- In the last 90 days, AAOI insiders reported 0 open-market purchases ($0) and 7 open-market sales ($6.7M) on Form 4, a net sale of $6.7M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $455.7M
- +82.8% vs prior year
- Insiders · 90 days
- 0 buys · 7 sells
- Net −$6.7M
- 13F holders
- 37 funds
- $3.9B · +3 vs prior quarter
- Latest 8-K
- Sep 15, 2026
- Item 2.03
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Dec 31, 2025
Business Overview
- Core business: Vertically integrated manufacturer of fiber-optic networking products for internet data center, CATV, telecom, and FTTH markets
- New direct-to-MSO product line in CATV under Quantum Bandwidth™ launched 2023 to address network upgrade needs
- Strategic shift: Increased emphasis on U.S.-based automated production capacity for data center products to meet customer preferences amid supply chain concerns
- Quantitative metric: Revenue growth to $455.7M in 2025, up from $249.4M in 2024; CATV accounted for 53.8% and internet data center 42.9% of 2025 revenue
- Noteworthy fact: Key CATV customer Digicomm’s revenue share surged to 53.1% in 2025 from 11.3% in 2023, reflecting concentration risk and shifting customer dynamics
Risk Factors
- U.S. Supreme Court invalidated IEEPA tariffs Feb 2026; Section 232/301 tariffs remain, causing ongoing cost, supply chain, and margin uncertainties
- High exposure to China with 4,116 manufacturing/R&D employees there; Lunar New Year closures disrupt Feb production
- Significant capital investment in U.S. manufacturing automation tied to AI demand may underperform due to delays, cost inflation, or weak AI adoption
- Competitor advantage risk as rivals pursue alternative AI technologies or sourcing, potentially obsoleting Applied Optoelectronics' equipment and slowing returns
- Heavy revenue concentration: top 10 customers 96.6% of 2025 revenue, with Digicomm 53.1% and Microsoft 28.8%, risking major impact from order reductions
Management Discussion & Analysis
- Revenue $455.7M in 2025, up 82.8% YoY from $249.4M in 2024, driven by CATV ($245.1M) and data center ($195.7M) growth
- Gross margin 30.1% in 2025 vs 24.8% in 2024 and 27.1% in 2023
- Best performing segment: CATV revenue $245.1M (53.8% of total); worst: FTTH and other $1.2M (0.3%) in 2025
- Net loss $38.2M in 2025, improved from $186.7M loss in 2024
- Top customers Digicomm (53.1% revenue) and Microsoft (28.8% revenue) in 2025
- Operating expenses increasing in dollars but expected to decline as % of revenue over time
- Cash flow details on buybacks, dividends, or capex not disclosed
- Management expects continued strong demand for 40, 100, 400 Gbps products with 800 Gbps sales exceeding 400 Gbps later in 2026
- Key risks: price pressure, customer concentration, product mix, quarterly variability in margin and revenue expected due to technology transitions
AI summary of the AAOI 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended Jun 30, 2026
Management Discussion & Analysis
- Revenue $191.9M, up 86.4% YoY from $103.0M, driven by data center and CATV products
- Data Center best-performing segment at $107.7M, up 140.4% YoY; FTTH and Other lowest at $0.3M, up 34.2%
- Gross margin 27.7% vs 30.3% YoY; operating margin (12.9)% vs (15.5)% YoY
- Cash, cash equivalents and restricted cash $508.8M; $106.5M unused borrowing capacity
- First ATM Offering raised approximately $490M from 4.8M shares; tariff and trade-policy uncertainty remain headwinds
Risk Factors
- No material risk-factor changes as of June 30, 2026 versus December 31, 2025 10-K
- Convertible debt exposure: $75 thousand of 2.75% 2030 Notes converted into 1,731 shares
- Equity dilution risk: CEO trading plans cover potential sales of 224,000 shares
- Financing risk: Global Technology credit line agreement with Shanghai Pudong Development Bank dated June 11, 2026
- Operational expansion risk: three new Hightower facility leases executed May 8, 2026
AI summary of the AAOI 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 2.03: Creation of a Direct Financial Obligation
- Exhibit 10.1 contains a factory premises lease dated September 10, 2026
- Lease counterparties: Global Technology, Inc. and Ningbo Yiduofu Industrial Co., Ltd.
Item 1.01: Entry into a Material Definitive Agreement
- AAOI acquired a Houston, Texas facility spanning 8.858 acres and 153,928 rentable square feet
- $26.78 million all-cash purchase increases owned real estate and near-term capital deployment
Item 2.03: Creation of a Direct Financial Obligation
- Two lease agreements for Buildings 4 and 5 create direct financial obligations for Applied Optoelectronics
- Agreements dated August 31, 2026, with Hightower Phase II Owner, LLC
AI summaries of AAOI 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for AAOI
Don't miss the next AAOI filing
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- Fund moves. Which tracked funds opened, added or cut AAOI, by share count.
- Ask anything. An AI agent that reads every AAOI filing and answers with sources.
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| BLACK RICHARD B | G | Sep 15, 2026 | 2,200 | - |
| Murry Stefan J. | Sell | Sep 10, 2026 | 4,000 | $105.33 |
| Chang Hung-Lun (Fred) | Sell | Sep 8, 2026 | 32,172 | $110.21 |
| Yeh Shu-Hua (Joshua) | Sell | Aug 18, 2026 | 6,000 | $147.73 |
| Murry Stefan J. | Sell | Aug 10, 2026 | 4,000 | $144.79 |
| Yeh Shu-Hua (Joshua) | Sell | Aug 4, 2026 | 4,715 | $126.50 |
| Lin Chih-Hsiang (Thompson) | A | Jul 31, 2026 | 9,251 | - |
| Murry Stefan J. | F | Jul 22, 2026 | 2,971 | $119.26 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $249.4M | $455.7M |
| Gross Profit | - | $61.8M | $136.9M |
| Operating Income | - | -$70.9M | -$54.6M |
| Net Income | - | -$186.7M | -$38.2M |
| Gross Margin | - | 24.8% | 30.0% |
| Op. Margin | - | -28.4% | -12.0% |
| Net Margin | - | -74.9% | -8.4% |
| Balance Sheet | |||
| Total Assets | $389.2M | $547.0M | $1.2B |
| Equity | $214.9M | $229.1M | $733.9M |
| ROE | - | -81.5% | -5.2% |
| Per Share | |||
| EPS | - | $-4.50 | $-0.64 |
| Cash Flow | |||
| Operating CF | - | -$69.5M | -$174.4M |
| CapEx | - | $43.4M | $179.1M |
Source: XBRL data in APPLIED OPTOELECTRONICS, INC. (AAOI)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate AAOI share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 37 | $3.90B |
| Q1 2026 | 34 | $2.30B |
| Q4 2025 | 26 | $920.8M |
| Q3 2025 | 26 | $492.7M |
| Q2 2025 | 24 | $424.4M |
| Q1 2025 | 22 | $197.3M |
| Q4 2024 | 17 | $355.4M |
| Q3 2024 | 14 | $81.5M |
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Source: 13F-HR filings on SEC EDGAR (aggregated from 200 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
AAOI filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 4 | Sep 17, 2026 | - | - | - |
| 8-K | Sep 15, 2026 | - | Analysis | - |
| 4 | Sep 10, 2026 | - | - | - |
| 8-K | Sep 10, 2026 | - | Analysis | - |
| 4 | Sep 10, 2026 | - | - | - |
| 8-K | Sep 1, 2026 | - | Analysis | - |
| 8-K | Aug 24, 2026 | - | Analysis | - |
| 8-K | Aug 21, 2026 | - | Analysis | - |
| 4 | Aug 20, 2026 | - | - | - |
| 4 | Aug 12, 2026 | - | - | - |
| 10-Q | Aug 6, 2026 | Jun 30, 2026 | Analysis | |
| 8-K | Aug 6, 2026 | - | Analysis | - |
| 4 | Aug 4, 2026 | - | - | - |
| 4 | Aug 4, 2026 | - | - | - |
| 4 | Jul 23, 2026 | - | - | - |
| 4 | Jul 23, 2026 | - | - | - |
| 4 | Jul 23, 2026 | - | - | - |
| 4 | Jul 23, 2026 | - | - | - |
| 4 | Jul 23, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 8-K | Jul 1, 2026 | - | Analysis | - |
| 4 | Jun 18, 2026 | - | - | - |
| 4 | Jun 18, 2026 | - | - | - |
| 4 | Jun 16, 2026 | - | - | - |
| 4 | Jun 16, 2026 | - | - | - |
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AAOI SEC filings: frequently asked questions
Are AAOI insiders buying or selling?
In the last 90 days, APPLIED OPTOELECTRONICS, INC. (AAOI) officers, directors and 10% owners reported no open-market purchases and 7 open-market sales worth $6.7 million by 3 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold AAOI stock?
As of June 30, 2026, the largest APPLIED OPTOELECTRONICS, INC. (AAOI) holders among the 13F filers tracked by SignalX were BlackRock ($955.7 million), Invesco Ltd ($505.9 million), Vanguard Capital Management LLC ($498.3 million), Marex Group plc ($419.3 million), Vanguard Portfolio Management LLC ($392.9 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was AAOI's revenue in fiscal year 2025?
For the fiscal year ended December 31, 2025 (FY2025), APPLIED OPTOELECTRONICS, INC. (AAOI) reported revenue of $455.7 million (up 82.8% from FY2024) and a net loss of $38.2 million. Diluted EPS was -$0.64. The figures come from the XBRL data in the 10-K.
What are the main risks in AAOI's latest 10-K?
In the 10-K filed February 26, 2026, APPLIED OPTOELECTRONICS, INC. (AAOI) flagged: U.S. Supreme Court invalidated IEEPA tariffs Feb 2026; Section 232/301 tariffs remain, causing ongoing cost, supply chain, and margin uncertainties. High exposure to China with 4,116 manufacturing/R&D employees there; Lunar New Year closures disrupt Feb production. (AI summary of the Risk Factors section.)
What did AAOI report in its latest 8-K?
APPLIED OPTOELECTRONICS, INC. (AAOI) filed an 8-K on September 15, 2026 reporting Item 2.03 (Creation of a Direct Financial Obligation). Exhibit 10.1 contains a factory premises lease dated September 10, 2026.
What are the latest AAOI SEC filings?
APPLIED OPTOELECTRONICS, INC. (AAOI) filed its latest 10-K annual report on February 26, 2026, a 10-Q quarterly report on August 6, 2026, an 8-K current report on September 15, 2026 and a Form 4 insider filing on September 17, 2026.
What is AAOI's SEC CIK number?
APPLIED OPTOELECTRONICS, INC. (AAOI)'s SEC Central Index Key (CIK) is 1158114. EDGAR lists every AAOI filing under that number.
Ask anything about AAOI
The research agent reads AAOI's filings, financials, insider trades and 13F holders, then answers with sources.