SEC ownership of AXT INC

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 CIK-linked ownership evidence from parsed SEC filings. 2 signals
Latest 13D/G holder
JANE STREET GROUP, LLC
Latest parsed ownership date
01 Jun 2026
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001051627
Issuer location
Fremont, CA

Ownership snapshot

Top shareholders of AXT INC (13F + 13D/G + 3/4/5)

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.

Comparable stake leader
JANE STREET GROUP, LLC
Disclosed value leader
JANE STREET GROUP, LLC
Comparable rows
50/50
Latest evidence
01 Jun 2026
13D/G 13F 3/4/5 Lead comparable stake: 7.5% 13D/G row: JANE STREET GROUP, LLC Showing 1-8 of 50 holder rows.

Quick read

JANE STREET GROUP, LLC leads the comparable SEC ownership view at 7.5%.

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.

Open SEC evidence Opens JANE STREET GROUP, LLC's linked filing trail.
Comparable ownership Top 5
JANE STREET GROUP, LLC 7.5%
Marex Securities Products Inc. 7.2%
E20 Capital Ltd 5.5%
VANGUARD GROUP INC 5%
Cleveland Capital Management, L.L.C. 1.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
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
How to read this table

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

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$65,041,264.

Buys
$0
Insiders: 0
Sells
$65,041,264
Insiders: 5
Net
-$65,041,264
Shares: -1,652,355
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 1,652,355
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

Insider holders from Forms 3/4/5

Showing 1-6 of 6 reporting-owner rows connected to AXT INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
6
Largest Forms 3/4/5 holder
Morris S. Young
Net 12M change
-$65,041,264
Latest report
01 Jun 2026
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

Recent insider transactions for AXT INC

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
* marks a reported price that did not pass the local price check.
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