CLWT insider reports 3.99M-share stake on Form 3

EURO TECH HOLDINGS CO LTD director and ten percent owner Mr. Leung Tak Chung filed an initial Form 3 reporting his ownership in the company.

Rhea-AI Filing Summary

EURO TECH HOLDINGS CO LTD director and ten percent owner Mr. Leung Tak Chung filed an initial Form 3 reporting his ownership in the company. The filing shows he directly holds 3,999,347 ordinary shares following the reported position, establishing his status as a major shareholder.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider LEUNG TAK CHUNG Mr

Role DIRECTOR

Type	Security	Shares	Price	Value
holding	ORDINARY SHARE	--	--	--

Holdings After Transaction: ORDINARY SHARE — 3,999,347 shares (Direct)

Key Figures

Ordinary shares held: 3,999,347 shares

1 metrics

Ordinary shares held 3,999,347 shares Total shares following position reported on Form 3

Key Terms

Form 3, ten percent owner, ordinary share

3 terms

Form 3 regulatory

"filed an initial Form 3 reporting his ownership in the company"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

ten percent owner regulatory

"director and ten percent owner Mr. Leung Tak Chung filed"

ordinary share financial

"The filing shows he directly holds 3,999,347 ordinary shares"

An ordinary share is a unit of ownership in a company that gives the holder a stake in its profits and usually the right to vote on key decisions. Think of it like a slice of a pizza where each slice entitles you to a portion of what’s left after bills are paid; value can rise or fall with the business and may pay dividends, so it matters to investors for income, growth and control.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does this Form 3 filing for CLWT report?

The Form 3 reports that Mr. Leung Tak Chung, a director and ten percent owner of EURO TECH HOLDINGS CO LTD, directly holds 3,999,347 ordinary shares, establishing his initial beneficial ownership position as an insider of the company.

Who is the reporting person in the CLWT Form 3 filing?

The reporting person is Mr. Leung Tak Chung, identified as both a director and a ten percent owner of EURO TECH HOLDINGS CO LTD, meaning he is an insider with significant influence and must report his shareholdings to the SEC.

How many CLWT shares does Mr. Leung report owning on Form 3?

Mr. Leung reports direct ownership of 3,999,347 ordinary shares of EURO TECH HOLDINGS CO LTD as his total holdings following the reported position, indicating a large equity stake in the company as of the filing date.

Is the CLWT Form 3 a buy or sell transaction?

The CLWT Form 3 is an initial ownership report, not a buy or sell transaction. It discloses Mr. Leung’s existing holdings of 3,999,347 ordinary shares rather than documenting a new purchase or sale of stock.

What type of security is disclosed in the CLWT Form 3?

The filing discloses ownership of ordinary shares of EURO TECH HOLDINGS CO LTD. These ordinary shares represent standard equity in the company and are reported as directly owned by Mr. Leung in this initial statement.

Why is Mr. Leung classified as a ten percent owner of CLWT?

Mr. Leung is classified as a ten percent owner because his reported 3,999,347 ordinary shares constitute a large stake in the company, triggering SEC insider reporting requirements that apply to directors, officers, and major shareholders.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/10/2026 - 09:52 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

LEUNG TAK CHUNG Mr

(Last) (First) (Middle)

UNIT D, 18/F., GEE CHANG HONG CENTRE

(Street)

65 WONG CHUK HANG ROAD 00000

(City) (State) (Zip)

HONG KONG

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
EURO TECH HOLDINGS CO LTD [ CLWT ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	DIRECTOR

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
ORDINARY SHARE	3,999,347	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	LEUNG TAK CHUNG	04/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)