AXT Inc
Ownership
Ownership Structure
Who owns AXT Inc (AXTI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.0% of the shares are freely tradable; institutional investors hold 58.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Jane Street Group LLC | 3.70 | 2,426,232 | +168.2 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.47 | 2,278,403 | +0.0 | 03/31/2026 |
| D. E. Shaw & Co LP | 3.43 | 2,250,085 | +189.9 | 06/30/2026 |
| Citadel Advisors Llc | 2.26 | 1,481,332 | +160.0 | 06/30/2026 |
| Morgan Stanley - Brokerage Accounts | 2.20 | 1,443,634 | +62.1 | 03/31/2026 |
| BlackRock Inc | 1.71 | 1,119,468 | +33.8 | 03/31/2026 |
| UBS Group AG | 1.67 | 1,096,636 | +999.5 | 03/31/2026 |
| Assenagon Asset Management SA | 1.56 | 1,022,988 | -32.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 1,979,828 | +0.3 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.44 | 1,598,219 | -0.6 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Leblanc Leonard J | Director | 113,129 | 7,670,146 $ | Aug 17, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 17, 2026 | Leblanc Leonard J | Director | Sell | 4,000 | 96.07 | 384,280 |
| Aug 7, 2026 | Leblanc Leonard J | Director | Sell | 2,000 | 88.32 | 176,630 |
| Jun 10, 2026 | Leblanc Leonard J | Director | Sell | 500 | 89.59 | 44,795 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.