Who owns AXT (AXTI)?
AXT's largest shareholders, according to SEC filings, are BlackRock (14.3%), Vanguard (7.6%) and Morris S. Young (6.6%, CEO). In all, 91 holders named in SEC filings declare between 70.5% and 82.0% of its shares, and 166 smaller fund managers another 2.0%.
AXT's largest shareholders
| Holder | Filing | Shares | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|---|
| BlackRock | 13G | 9.4M | 14.3% | Sep 30, 2026 | — |
| Vanguard | 13F | 5.0M | 7.6% | Jun 30, 2026 | Q4 2019 or earlier |
| Morris S. Young | Form 4 | 4.3M | 6.6% | Jun 12, 2026 | — |
| Marex Group plc | 13F | 3.6M | 5.4% | Jun 30, 2026 | Q1 2026 |
| Jane Street | 13F | 3.5M | 5.4% | Jun 30, 2026 | Q3 2025 |
| D. E. Shaw | 13F | 2.3M | 3.4% | Jun 30, 2026 | Q4 2025 |
| Geode Capital | 13F | 1.7M | 2.6% | Jun 30, 2026 | Q4 2019 or earlier |
| T. Rowe Price | 13F | 1.7M | 2.6% | Jun 30, 2026 | Q1 2026 |
| State Street | 13F | 1.5M | 2.3% | Jun 30, 2026 | Q4 2019 or earlier |
| Citadel | 13F | 1.5M | 2.3% | Jun 30, 2026 | Q2 2025 |
| Clear Street Group Inc. | 13F | 1.3M | 2.0% | Jun 30, 2026 | Q2 2026 |
| Invesco | 13F | 1.1M | 1.7% | Jun 30, 2026 | Q1 2026 |
| CITIGROUP INC | 13F | 1.1M | 1.6% | Jun 30, 2026 | Q3 2025 |
| Assenagon Asset Management S.A. | 13F | 1.0M | 1.6% | Jun 30, 2026 | Q2 2023 |
| SG Americas Securities, LLC | 13F | 1.0M | 1.5% | Jun 30, 2026 | Q1 2026 |
| Millennium | 13F | 854,322 | 1.3% | Jun 30, 2026 | Q3 2025 |
| Goldman Sachs | 13F | 819,556 | 1.2% | Jun 30, 2026 | Q1 2024 |
| UBS | 13F | 740,042 | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Bank of America | 13F | 639,037 | 0.97% | Jun 30, 2026 | Q4 2019 or earlier |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 13F | 615,377 | 0.94% | Jun 30, 2026 | Q2 2026 |
| Morgan Stanley | 13F | 611,974 | 0.93% | Jun 30, 2026 | Q4 2019 or earlier |
| Northern Trust | 13F | 548,403 | 0.84% | Jun 30, 2026 | Q4 2019 or earlier |
| Fund Resources Investment Holding Group Co Ltd | 13F | 536,706 | 0.82% | Jun 30, 2026 | Q2 2026 |
| Two Sigma | 13F | 397,732 | 0.61% | Jun 30, 2026 | Q4 2019 or earlier |
| Susquehanna | 13F | 377,795 | 0.58% | Jun 30, 2026 | Q3 2022 |
AXT ownership breakdown
91 holders named in SEC filings declare between 70.5% and 82.0% of AXT's shares outstanding, as of Sep 30, 2026. The largest are BlackRock (14.3%), Vanguard (7.6%) and Morris S. Young (6.6%); the five largest hold 39.2% together. Another 166 institutions hold small positions worth 2.0%. At least 16.0% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 41.5% and sold 22.3% of the shares, a net purchase of 19.2%; 121 opened a position, 66 added, 45 reduced and 59 sold out. Biggest buyers: BlackRock (+4.0M shares) and Marex Group plc (+3.6M shares). Biggest sellers: E20 Capital Ltd (-2.1M) and WT Asset Management Ltd (-1.3M). Schedule 13D/G filings since Mar 31, 2026: BlackRock, Inc. crossed 5% (14.3%) on Sep 30, 2026 and JANE STREET GROUP, LLC crossed 5% (6.7%) on Jun 30, 2026. Directors and officers, from their latest Form 4: Morris S. Young (6.6%), David C. Chang (0.30%) and Gary L. Fischer (0.29%). Over time, 242 managers declared AXT in their 13F for Q2 2026, against 82 for Q4 2019: together at most 65.6% of the shares outstanding, against 56.4%.
AXT institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 82 | 56.4% | $101.2M | 67.3% |
| Q4 2020 | 90 | 60.0% | $237.1M | 65.7% |
| Q4 2021 | 89 | 53.9% | $202.9M | 67.4% |
| Q4 2022 | 104 | 55.9% | $106.7M | 70.3% |
| Q4 2023 | 86 | 49.0% | $51.3M | 80.5% |
| Q4 2024 | 77 | 38.4% | $37.3M | 70.8% |
| Q4 2025 | 109 | 63.1% | $480.7M | 75.4% |
| Q2 2026 | 242 | 65.6% | $3.1B | 38.5% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.
Questions about AXT's shareholders
Who is the largest shareholder of AXT?
BlackRock, with 14.3% of AXT's shares (9.4 million shares), according to a Schedule 13G as of Sep 30, 2026.
What is AXT's institutional ownership?
In their 13F filings for Q2 2026, 242 fund managers declared AXT shares: at most 65.6% of the shares outstanding — an upper bound, since two managers can report the same shares. With large shareholders (Schedule 13D/G) and directors and officers (Form 4), 91 named holders declare between 70.5% and 82.0% of the shares.
How much of AXT does Vanguard own?
Vanguard declared 5.0 million shares, 7.6% of AXT's shares, in its 13F filing for the quarter ended Jun 30, 2026, up 3.56 percentage points from its previous filing (Mar 31, 2026).
How much of AXT does Marex Group plc own?
Marex Group plc declared 3.6 million shares, 5.4% of AXT's shares, in its 13F filing for the quarter ended Jun 30, 2026.
How much AXT stock does Morris S. Young own?
Morris S. Young, CEO, declared 4.3 million shares, 6.6% of AXT's shares, in the latest Form 4, dated Jun 12, 2026.
Who bought and sold AXT stock last quarter?
From Mar 31, 2026 to Jun 30, 2026, fund managers that filed both quarters bought 41.5% of AXT's shares and sold 22.3%: 121 opened a position and 59 sold out. Biggest buyers: BlackRock (+4.0 million shares), Marex Group plc (+3.6 million shares) and Vanguard (+2.3 million shares). Biggest sellers: E20 Capital Ltd (−2.1 million shares), WT Asset Management Ltd (−1.3 million shares) and Anther Capital Ltd (−1.3 million shares).
How much of AXT do individual investors own?
No filing says it directly: individual investors do not have to report their holdings. At least 16.0% of AXT's shares appear in no ownership filing — retail investors, holders below the reporting thresholds and foreign funds.
Who owns the other AI companies? The largest shareholder of each, from SEC filings.