Connect Biopharma (CNTB) president discloses share and option holdings

Rhea-AI Filing Summary

Connect Biopharma Holdings Ltd president David Leslie Szekeres filed an initial Form 3 reporting his equity holdings in the company. He directly holds 215,739 ordinary shares and several employee stock option grants over ordinary shares with exercise prices of $1.77, $0.97, and $2.69, expiring between 2034 and 2035. The footnotes explain that these options vest over four years, with portions vesting on the first anniversary of grant and the remainder vesting monthly thereafter, contingent on his continued service.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Szekeres David Leslie

Role President

Type	Security	Shares	Price	Value
holding	Employee Stock Option (Right to Buy)	--	--	--
holding	Employee Stock Option (Right to Buy)	--	--	--
holding	Employee Stock Option (Right to Buy)	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Employee Stock Option (Right to Buy) — 1,772,489 shares (Direct); Ordinary Shares — 215,739 shares (Direct)

Footnotes (1)

1. The stock option vests and becomes exercisable over four years, with 25% vesting on the first anniversary of the date of grant, and then with respect to the remaining shares on a ratable monthly basis over the next three years, subject to continuous service with the Company as of each applicable vesting date. The stock option vests and becomes exercisable on a ratable monthly basis over four years, subject to continuous service with the Company as of each applicable vesting date.

Understanding Insider Trading Forms →

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
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1. Name and Address of Reporting Person^*

Szekeres David Leslie

(Last) (First) (Middle)

3580 CARMEL MOUNTAIN ROAD, SUITE 200

(Street)

SAN DIEGO CA 92130

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/16/2026

3. Issuer Name and Ticker or Trading Symbol
Connect Biopharma Holdings Ltd [ CNTB ]

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

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

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

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 Shares	215,739	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
Employee Stock Option (Right to Buy)	(1)	06/12/2034	Ordinary Shares	1,772,489	$1.77	D
Employee Stock Option (Right to Buy)	(1)	12/26/2034	Ordinary Shares	409,355	$0.97	D
Employee Stock Option (Right to Buy)	(2)	12/26/2035	Ordinary Shares	400,000	$2.69	D

Explanation of Responses:

1. The stock option vests and becomes exercisable over four years, with 25% vesting on the first anniversary of the date of grant, and then with respect to the remaining shares on a ratable monthly basis over the next three years, subject to continuous service with the Company as of each applicable vesting date.

2. The stock option vests and becomes exercisable on a ratable monthly basis over four years, subject to continuous service with the Company as of each applicable vesting date.

Remarks:

	/s/ Lisa Peraza attorney-in-fact for David Leslie Szekeres	03/16/2026
	** 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.

FAQ

What does the Form 3 for Connect Biopharma (CNTB) president David Leslie Szekeres report?

It reports David Leslie Szekeres’ initial beneficial ownership in Connect Biopharma. He holds 215,739 ordinary shares directly and multiple employee stock options over ordinary shares with specified exercise prices, expirations, and four-year vesting schedules tied to continued service.

How many ordinary shares does the CNTB president directly hold according to this Form 3?

The Form 3 shows direct ownership of 215,739 ordinary shares. This figure represents his current direct share position, separate from additional ordinary shares that may be acquired in the future through his outstanding employee stock options.

What employee stock options are disclosed for the CNTB president in this Form 3 filing?

The filing lists three employee stock option grants over ordinary shares, with exercise prices of $1.77, $0.97, and $2.69 per share, and expirations in June 2034, December 2034, and December 2035, respectively, all held directly by the president.

How do the employee stock options for CNTB’s president vest according to the Form 3 footnotes?

Footnotes state one grant vests 25% on the first anniversary of grant, then monthly over three years, while another vests ratably monthly over four years. Vesting requires continuous service with the company at each applicable vesting date.

Does the CNTB Form 3 show any recent buy or sell transactions by the president?

No recent buy or sell transactions are indicated. The entries are categorized as holdings, showing existing ordinary shares and unexercised employee stock options, rather than new open-market purchases or sales of Connect Biopharma securities.