Company · Ownership research

MATERIALISE NV MTLS

CIK 0001091223 · CUSIP 57667T100

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 57667T100 (MTLS), not CUSIP 57667T900 (MTLS), CUSIP 57667T950 (MTLS), and does not merge CUSIPs.

This page lists the top 20 of 57 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	DISCIPLINED GROWTH INVESTORS INC /MN CIK 1050442 · View history	$14.80M 1,992,441 shares	0.25%	+857.05K(+75.50%)Added	SEC filing ↗ Aug 14, 2026	▾
02	Rock Point Advisors, LLC CIK 1301540 · View history	$7.36M 990,871 shares	1.80%	-24.61K(-2.40%)Reduced	SEC filing ↗ Aug 6, 2026	▾
03	Archon Capital Management LLC CIK 1398825 · View history	$5.70M 766,622 shares	2.31%	+23.90K(+3.20%)Added	SEC filing ↗ Aug 14, 2026	▾
04	KING LUTHER CAPITAL MANAGEMENT CORP CIK 310051 · View history	$4.67M 628,750 shares	0.02%	0(0.00%)Unchanged	SEC filing ↗ Aug 10, 2026	▾
05	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$4.47M 603,875 shares	0.01%	+51.16K(+9.30%)Added	SEC filing ↗ Aug 13, 2026	▾
06	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$3.54M 476,986 shares	0.00%	+134.35K(+39.20%)Added	SEC filing ↗ Aug 13, 2026	▾
07	ARK Investment Management LLC CIK 1697748 · View history	$3.12M 419,784 shares	0.02%	-24.54K(-5.50%)Reduced	SEC filing ↗ Aug 14, 2026	▾
08	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$2.20M 296,200 shares	0.00%	-8.50K(-2.80%)Reduced	SEC filing ↗ Aug 13, 2026	▾
09	CITADEL ADVISORS LLC CIK 1423053 · Amended · View history	$1.83M 246,117 shares	0.00%	+48.49K(+24.50%)Added	SEC filing ↗ Sep 2, 2026	▾
10	EDMOND DE ROTHSCHILD HOLDING S.A. CIK 1649647 · View history	$1.49M 200,007 shares	0.02%	0(0.00%)Unchanged	SEC filing ↗ Aug 10, 2026	▾
11	Axxion S.A. CIK 2030181 · View history	$1.30M 174,384 shares	0.09%	—	SEC filing ↗ Aug 14, 2026	▾
12	CREDIT AGRICOLE S A CIK 1191672 · View history	$1.12M 150,765 shares	0.00%	-46.19K(-23.50%)Reduced	SEC filing ↗ Aug 14, 2026	▾
13	MORGAN STANLEY CIK 895421 · View history	$1.11M 149,415 shares	0.00%	-56.94K(-27.60%)Reduced	SEC filing ↗ Aug 13, 2026	▾
14	UBS Group AG CIK 1610520 · View history	$915.56K 123,225 shares	0.00%	+61.69K(+100.30%)Added	SEC filing ↗ Aug 13, 2026	▾
15	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$746.92K 100,527 shares	0.00%	-7.46K(-6.90%)Reduced	SEC filing ↗ Aug 14, 2026	▾
16	NANO CAP NEW MILLENNIUM GROWTH FUND L P CIK 1277890 · View history	$743.00K 100,000 shares	0.57%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
17	Quinn Opportunity Partners LLC CIK 1633275 · View history	$594.42K 80,003 shares	0.03%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
18	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$500.07K 67,304 shares	0.00%	+10.42K(+18.30%)Added	SEC filing ↗ Aug 14, 2026	▾
19	LPL Financial LLC CIK 1403438 · View history	$371.19K 49,959 shares	0.00%	-3.37K(-6.30%)Reduced	SEC filing ↗ Aug 7, 2026	▾
20	Trexquant Investment LP CIK 1633445 · View history	$302.79K 40,752 shares	0.00%	+40.75KNew	SEC filing ↗ Aug 14, 2026	▾

Showing 20 / 57 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

8,087,946

Not deduplicated across managers

Disclosed value

$60.07M

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.

MATERIALISE NV · Q2 2026

Explore all 57 reporting institutions.

This page includes 20 of 57 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.