Applied Optoelectronics (AAOI)

Dilution

The share count is up +32.9% in a year, so each share is a slightly smaller slice of the company. What dilution means.

Insider trades

Bought or sold on the open market

An insider buying with their own money is a stronger signal than a sale: people sell for taxes, houses and diversification. "Planned" sales were scheduled months ahead under a 10b5-1 plan. Source: SEC Form 4.

Famous investors who own it

None of the 18 famous investors I track owned AAOI at their last 13F. Who I track.

Failed trades

From the SEC's fails-to-deliver data, which runs two to four weeks behind. A spike can mean heavy short selling or just back-office delays; it isn't proof of anything on its own. Short interest isn't shown: FINRA's terms don't allow republishing it.

Share offerings

Selling new shares dilutes current owners. A "shelf" is permission to sell later; a 424B5 usually means a sale is actually happening.

• Aug 21, 2026424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Jun 9, 2026S-8Registered shares for employee stock plans
• May 14, 2026424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Mar 12, 2026424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Feb 26, 2026424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Nov 7, 2025424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Aug 27, 2025424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• May 28, 2025424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Apr 25, 2025424B7Prospectus for shares sold by existing holders
• Apr 10, 2025S-8Registered shares for employee stock plans
• Feb 28, 2025424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)
• Dec 20, 2024424B5Prospectus for a sale off the shelf (new shares, an at-the-market program, or bonds)

What they told the SEC, in plain English

Every 8-K (the report a company files when something big happens) in the last two years. Red ones are worth a closer look: auditor changes, restatements, late reports, listing problems.

• Nov 5, 20268-KReleased quarterly results
• Nov 4, 20268-KSigned a major agreement; Ended a major agreement; Took on new debt
• Oct 30, 2026SCHEDULE 13GAn investor reported a 5%+ stake
• Sep 15, 20268-KSigned a major agreement; Took on new debt
• Sep 10, 20268-KSigned a major agreement
• Sep 1, 20268-KSigned a major agreement; Took on new debt
• Aug 24, 20268-KSigned a major agreement; Executive or board change
• Aug 21, 20268-KSigned a major agreement
• Aug 6, 20268-KReleased quarterly results
• Jul 1, 20268-KSigned a major agreement; Took on new debt
• Jun 16, 20268-KSigned a major agreement; Took on new debt
• Jun 5, 20268-KExecutive or board change; Shareholder vote results
• May 14, 20268-KSigned a major agreement
• May 13, 20268-KSigned a major agreement; Took on new debt
• May 13, 2026SCHEDULE 13GAn investor reported a 5%+ stake
• May 8, 20268-KChanged auditors
• May 7, 20268-KReleased quarterly results
• Apr 13, 20268-KSigned a major agreement; Took on new debt
• Mar 23, 2026SCHEDULE 13GAn investor reported a 5%+ stake
• Mar 12, 20268-KSigned a major agreement
• Mar 5, 20268-KSigned a major agreement; Took on new debt
• Feb 27, 20268-KSigned a major agreement; Took on new debt
• Feb 26, 20268-KSigned a major agreement
• Feb 26, 20268-KReleased quarterly results
• Feb 19, 20268-KExecutive or board change

What changed in the latest annual report

Comparing the risk factors in the 10-K filed Feb 26, 2026 with the one filed Feb 28, 2025: 1 new and 1 removed, out of 41.

New this year

• Significant capital investments in U.S. manufacturing and automation, including investments intended to support artificial intelligence ("AI")-related demand, may not achieve expected returns and could adversely affect our business, financial condition, and results of operations.

Matched by each risk's headline, so a reworded risk can show up as new. This year's report · last year's.

Search inside Applied Optoelectronics's filings

Opens the SEC's own full-text search in a new tab, limited to AAOI. Every AAOI filing on EDGAR.