Comparable stake leader
JANE STREET GROUP, LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001051627.
Comparable stake leader
JANE STREET GROUP, LLC
Disclosed value leader
JANE STREET GROUP, LLC
Comparable rows
50/50
Latest evidence
01 Jun 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| JANE STREET GROUP, LLC |
13D/G
13F
Company
|
7.5%
|
$272,464,172
4,781,751 shares
|
+$110,787,297 | 23 Apr 2026 |
| Marex Securities Products Inc. |
13D/G
|
7.2%
|
$257,086,404
4,005,709 shares
|
$0 | 01 May 2026 |
| E20 Capital Ltd |
13D/G
13F
Company
|
5.5%
|
$177,736,005
2,586,756 shares
|
$0 | 21 Nov 2025 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
5%
|
$3,133,839
2,270,898 shares
|
$0 | 31 Mar 2025 |
| Cleveland Capital Management, L.L.C. |
13D/G
Wade Massad
|
1.1%
|
$37,751,318
588,210 shares
|
-$165,121,662 | 31 Mar 2026 |
| Gary L. Fischer |
3/4/5
CFO
|
0.41%
|
$4,741,781
191,278 shares
|
-$18,734,843 | 12 Mar 2026 |
| Russell Christine |
3/4/5
Director
|
0.28%
|
$184,050
133,370 shares
|
— | 15 May 2025 |
| Leonard J. Leblanc |
3/4/5
Director
|
0.25%
|
$999,738
118,875 shares
|
-$30,587 | 07 Nov 2025 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$65,041,264.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 497,125 | $0 | $34,640,355 | -$34,640,355 |
| 3-6 | 0 | 684,256 | $0 | $25,927,888 | -$25,927,888 |
| 6-9 | 0 | 470,974 | $0 | $4,473,021 | -$4,473,021 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Showing 1-6 of 6 reporting-owner rows connected to AXT INC. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Morris S. Young | CEO, Director | $372,455,109 | -$37,476,906 | -9.1% | Mixed | 01 Jun 2026 |
| Jesse Chen | Director | $11,583,576 | -$4,498,581 | -28% | Filing P/S | 01 Jun 2026 |
| Gary L. Fischer | Cfo | $4,741,781 | -$18,734,843 | -80% | Mixed | 12 Mar 2026 |
| David C. Chang | Director | $3,345,925 | -$4,300,347 | -56% | Filing P/S | 10 Mar 2026 |
| Leonard J. Leblanc | Director | $999,738 | -$30,587 | -3% | Filing P/S | 07 Nov 2025 |
| Russell Christine | Director | $184,050 | Mixed | 15 May 2025 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Morris S. Young | AXTI | Common Stock | Sale | -5.44% | $14,007,590 | $113.33 | -123,601 | 2,149,533 | 02 Jun 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Options Exercise | 0.52% | 11,806 | 2,273,134 | 02 Jun 2026 | Direct | ||
| Morris S. Young | AXTI | Stock Option (Right to Buy) | Options Exercise | -2.47% | -11,806 | 467,046 | 02 Jun 2026 | Direct | ||
| Jesse Chen | AXTI | Common Stock | Sale | -1.88% | $222,065 | $111.03 | -2,000 | 104,326 | 02 Jun 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Sale | -3.16% | $8,305,336 | $112.39 | -73,897 | 2,261,328 | 01 Jun 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Options Exercise | 3.27% | 73,897 | 2,335,225 | 01 Jun 2026 | Direct | ||
| Morris S. Young | AXTI | Stock Option (Right to Buy) | Options Exercise | -13.4% | -73,897 | 478,852 | 01 Jun 2026 | Direct | ||
| Jesse Chen | AXTI | Common Stock | Sale | -2.92% | $356,997 | $111.56 | -3,200 | 106,326 | 01 Jun 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Gift | -0.62% | -14,000 | 2,261,328 | 01 May 2026 | By Young Family Trust DTD | ||
| Jesse Chen | AXTI | Common Stock | Sale | -6.87% | -8,083 | 109,526 | 13 Mar 2026 | Direct | ||
| Morris S. Young | AXTI | Common Stock | Sale | -1.64% | -37,905 | 2,275,328 | 13 Mar 2026 | By Young Family Trust DTD | ||
| Gary L. Fischer | AXTI | Common Stock | Sale | -29.7% | -80,776 | 191,278 | 13 Mar 2026 | Direct | ||
| Jesse Chen | AXTI | Common Stock | Sale | -4.86% | $293,871 | $48.95 | -6,003 | 117,609 | 12 Mar 2026 | Direct |
| Gary L. Fischer | AXTI | Common Stock | Sale | -2.95% | -8,256 | 272,054 | 12 Mar 2026 | Direct | ||
| Jesse Chen | AXTI | Common Stock | Sale | -10.8% | $706,941 | $47.13 | -15,000 | 123,612 | 11 Mar 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Sale | -1.32% | $1,405,908 | $45.60 | -30,832 | 2,313,233 | 10 Mar 2026 | By Young Family Trust DTD |
| David C. Chang | AXTI | Common Stock | Sale | -21.6% | $919,918 | $46.00 | -20,000 | 72,744 | 10 Mar 2026 | Direct |
| Jesse Chen | AXTI | Common Stock | Sale | -9.17% | $646,106 | $46.15 | -14,000 | 138,612 | 10 Mar 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Sale | -5.1% | $4,596,656 | $36.51 | -125,893 | 2,344,065 | 09 Mar 2026 | By Young Family Trust DTD |
| Jesse Chen | AXTI | Common Stock | Sale | -7.54% | $469,335 | $37.69 | -12,452 | 152,612 | 09 Mar 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Sale | -0.33% | $329,063 | $39.65 | -8,300 | 2,469,958 | 06 Mar 2026 | By Young Family Trust DTD |
| Jesse Chen | AXTI | Common Stock | Sale | -1.2% | $73,260 | $36.63 | -2,000 | 165,064 | 06 Mar 2026 | Direct |
| David C. Chang | AXTI | Common Stock | Sale | -17.7% | $768,476 | $38.42 | -20,000 | 92,744 | 05 Mar 2026 | Direct |
| Jesse Chen | AXTI | Common Stock | Sale | -6.25% | $426,511 | $38.26 | -11,147 | 167,064 | 05 Mar 2026 | Direct |
| David C. Chang | AXTI | Common Stock | Sale | -15.1% | $770,638 | $38.53 | -20,000 | 112,744 | 04 Mar 2026 | Direct |
| Jesse Chen | AXTI | Common Stock | Sale | -4.71% | $341,685 | $38.83 | -8,800 | 178,211 | 04 Mar 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Gift | -0.15% | -3,780 | 2,478,258 | 03 Mar 2026 | By Young Family Trust DTD | ||
| Jesse Chen | AXTI | Common Stock | Sale | -5.56% | $445,694 | $40.49 | -11,007 | 187,011 | 03 Mar 2026 | Direct |
| Jesse Chen | AXTI | Common Stock | Sale | -5.41% | $516,116 | $45.59 | -11,320 | 198,018 | 02 Mar 2026 | Direct |
| Morris S. Young | AXTI | Common Stock | Sale | -6.04% | $6,911,466 | $43.32 | -159,536 | 2,482,038 | 02 Mar 2026 | By Young Family Trust DTD |
| Morris S. Young | AXTI | Common Stock | Gift | -1.02% | -27,200 | 2,641,574 | 02 Mar 2026 | By Young Family Trust DTD | ||
| Gary L. Fischer | AXTI | Common Stock | Sale | -59.1% | $16,798,934 | $41.46 | -405,233 | 280,310 | 02 Mar 2026 | Direct |
| Gary L. Fischer | AXTI | Common Stock | Options Exercise | 56.6% | 247,828 | 685,543 | 26 Feb 2026 | Direct | ||
| Gary L. Fischer | AXTI | Stock Option (Right to Buy) | Options Exercise | -100% | -247,828 | 0 | 26 Feb 2026 | Direct | ||
| Morris S. Young | AXTI | Common Stock | Award | 8.9% | 218,170 | 2,668,774 | 18 Feb 2026 | Direct | ||
| Gary L. Fischer | AXTI | Common Stock | Award | 20.9% | 75,718 | 437,715 | 18 Feb 2026 | Direct | ||
| David C. Chang | AXTI | Common Stock | Sale | -15.8% | $371,025 | $14.84 | -25,000 | 132,744 | 09 Dec 2025 | DAVID C CHANG TTEE DAVID C.CHANG REVOCABLE TRUST |
| Morris S. Young | AXTI | Common Stock | Gift | -0.32% | -7,800 | 2,450,604 | 09 Dec 2025 | By Young Family Trust DTD | ||
| Morris S. Young | AXTI | Common Stock | Sale | -1.49% | $462,902 | $12.46 | -37,160 | 2,458,404 | 08 Dec 2025 | By Young Family Trust DTD |
| Morris S. Young | AXTI | Common Stock | Sale | -1.38% | $421,750 | $12.05 | -35,000 | 2,495,564 | 04 Dec 2025 | By Young Family Trust DTD |
| Morris S. Young | AXTI | Common Stock | Options Exercise | 2.81% | 69,204 | 2,530,564 | 04 Dec 2025 | Direct | ||
| Morris S. Young | AXTI | Stock Option (Right to Buy) | Options Exercise | -11.1% | -69,204 | 552,749 | 04 Dec 2025 | Direct | ||
| David C. Chang | AXTI | Common Stock | Sale | -13.7% | $308,250 | $12.33 | -25,000 | 157,744 | 02 Dec 2025 | DAVID C CHANG TTEE DAVID C.CHANG REVOCABLE TRUST |
| David C. Chang | AXTI | Common Stock | Sale | -12% | $268,000 | $10.72 | -25,000 | 182,744 | 28 Nov 2025 | DAVID C CHANG TTEE DAVID C.CHANG REVOCABLE TRUST |
| Morris S. Young | AXTI | Common Stock | Gift | -0.61% | -15,000 | 2,461,360 | 21 Nov 2025 | By Young Family Trust DTD | ||
| Morris S. Young | AXTI | Common Stock | Sale | -1.32% | $344,386 | $10.40 | -33,130 | 2,476,360 | 17 Nov 2025 | Direct |
| Morris S. Young | AXTI | Common Stock | Options Exercise | 2.87% | 70,000 | 2,509,490 | 14 Nov 2025 | Direct | ||
| Morris S. Young | AXTI | Stock Option (Right to Buy) | Options Exercise | -10.1% | -70,000 | 621,953 | 14 Nov 2025 | Direct | ||
| Gary L. Fischer | AXTI | Common Stock | Sale | -21.9% | $1,026,949 | $10.14 | -101,297 | 361,997 | 13 Nov 2025 | Direct |
| Leonard J. Leblanc | AXTI | Common Stock | Sale | -2.97% | $30,587 | $8.41 | -3,637 | 118,875 | 07 Nov 2025 | Direct |