Company · Ownership research

AXT INC AXTI

CIK 0001051627 · CUSIP 00246W103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 00246W103 (AXTI), not CUSIP 00246W903 (AXTI), CUSIP 00246W953 (AXTI), and does not merge CUSIPs.

This page lists the top 20 of 257 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$365.61M 5,072,242 shares	0.01%	+3.95M(+353.10%)Added	SEC filing ↗ Aug 7, 2026	▾
02	Marex Group plc CIK 1997464 · View history	$256.89M 3,563,896 shares	1.91%	+3.56M(+44,398.60%)Added	SEC filing ↗ Aug 14, 2026	▾
03	JANE STREET GROUP, LLC CIK 1595888 · View history	$254.23M 3,527,115 shares	0.16%	+1.10M(+45.40%)Added	SEC filing ↗ Aug 14, 2026	▾
04	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history	$196.27M 2,722,914 shares	0.00%	+444.51K(+19.50%)Added	SEC filing ↗ Aug 13, 2026	▾
05	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$162.19M 2,250,085 shares	0.10%	+1.47M(+189.90%)Added	SEC filing ↗ Aug 14, 2026	▾
06	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · View history	$126.75M 1,758,421 shares	0.01%	+1.76MNew	SEC filing ↗ Aug 13, 2026	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$125.17M 1,736,210 shares	0.01%	+1.15M(+195.40%)Added	SEC filing ↗ Aug 12, 2026	▾
08	STATE STREET CORP CIK 93751 · Amended · View history	$106.86M 1,482,498 shares	0.00%	+1.14M(+338.70%)Added	SEC filing ↗ Sep 22, 2026	▾
09	CITADEL ADVISORS LLC CIK 1423053 · Amended · View history	$106.77M 1,481,332 shares	0.06%	+911.66K(+160.00%)Added	SEC filing ↗ Sep 2, 2026	▾
10	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$95.18M 1,320,508 shares	0.01%	+410.75K(+45.20%)Added	SEC filing ↗ Aug 14, 2026	▾
11	Clear Street Group Inc. CIK 1881567 · View history	$94.35M 1,308,921 shares	0.30%	+1.31MNew	SEC filing ↗ Aug 12, 2026	▾
12	Invesco Ltd. CIK 914208 · View history	$82.43M 1,143,577 shares	0.01%	+1.14M(+15,811.70%)Added	SEC filing ↗ Aug 14, 2026	▾
13	CITIGROUP INC CIK 831001 · View history	$76.05M 1,055,074 shares	0.04%	+102.37K(+10.70%)Added	SEC filing ↗ Aug 3, 2026	▾
14	Assenagon Asset Management S.A. CIK 1546007 · Amended · View history	$73.74M 1,022,988 shares	0.10%	-482.37K(-32.00%)Reduced	SEC filing ↗ Aug 21, 2026	▾
15	SG Americas Securities, LLC CIK 1313360 · View history	$72.23M 1,002,151 shares	0.04%	+1.00M(+52,700.40%)Added	SEC filing ↗ Aug 7, 2026	▾
16	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$61.58M 854,322 shares	0.04%	+115.13K(+15.60%)Added	SEC filing ↗ Aug 14, 2026	▾
17	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$59.07M 819,556 shares	0.01%	-113.94K(-12.20%)Reduced	SEC filing ↗ Aug 14, 2026	▾
18	UBS Group AG CIK 1610520 · View history	$47.15M 654,117 shares	0.01%	-442.52K(-40.40%)Reduced	SEC filing ↗ Aug 13, 2026	▾
19	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$46.06M 639,037 shares	0.00%	-137.26K(-17.70%)Reduced	SEC filing ↗ Aug 14, 2026	▾
20	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND CIK 1535845 · View history	$44.36M 615,377 shares	0.06%	+615.38KNew	SEC filing ↗ Aug 13, 2026	▾

Showing 20 / 257 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

257

Cancelled or null records excluded

Disclosed shares

45,934,116

Not deduplicated across managers

Disclosed value

$3.31B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

AXT INC · Q2 2026

Explore all 257 reporting institutions.

This page includes 20 of 257 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.