Mesoblast director Gregory reports initial holdings

Mesoblast Ltd director George Gregory filed an initial ownership report listing his existing holdings in the company.

Rhea-AI Filing Summary

Mesoblast Ltd director George Gregory filed an initial ownership report listing his existing holdings in the company. The filing shows direct and indirect positions in ordinary shares, American Depositary Shares, warrants, and stock options with various exercise prices and expirations. A footnote explains that each ADS represents a beneficial interest in 10 ordinary shares.

Insider Trade Summary

12 transactions reported

Mixed 12 txns

Insider George Gregory

Role Director

Type	Security	Shares	Price	Value
holding	Warrants	--	--	--
holding	Warrants	--	--	--
holding	Warrants	--	--	--
holding	Options	--	--	--
holding	Options	--	--	--
holding	Options	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Warrants — 6,830,602 contracts (Indirect, Through G to the Fourth Investments, LLC, of which Dr. George is a manager.); Warrants — 1,800,000 contracts (Direct); Options — 200,000 contracts (Direct); Ordinary Shares — 128,293,285 shares (Direct); Ordinary Shares — 9,798,292 shares (Indirect, Through G to the Fourth Investments, LLC, of which Dr. George is a manager); Ordinary Shares — 80,000,000 shares (Indirect, Held by James George, who has granted power of attorney to Dr. George.); Ordinary Shares — 60,000,000 shares (Indirect, Held by Grant George, who has granted power of attorney to Dr. George.)

Footnotes (1)

1. F1. Such Ordinary Shares are represented by American Depositary Shares. Each ADS represents a beneficial interest in 10 ordinary shares.

FAQ

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

What does the Mesoblast (MESO) Form 3 filing by George Gregory show?

The Form 3 shows George Gregory’s existing ownership in Mesoblast, including ordinary shares, ADS-related holdings, warrants, and stock options. It is an initial disclosure of positions, not a report of new purchases or sales.

What derivative securities does George Gregory report in Mesoblast (MESO)?

George Gregory reports warrants and stock options over Mesoblast ordinary shares and ADS. These derivatives have stated exercise prices and expiration dates, indicating potential future share acquisitions if exercised under their respective terms.

How are American Depositary Shares described in the Mesoblast (MESO) Form 3?

A footnote explains that each ADS represents a beneficial interest in 10 ordinary shares of Mesoblast. This clarifies how ADS holdings relate to the underlying ordinary shares disclosed in the filing.

What indirect holdings are reported for George Gregory in Mesoblast (MESO)?

Indirect positions include ordinary shares and warrants held through G to the Fourth Investments, LLC, where Gregory is a manager, and shares held by James and Grant George, who have granted him power of attorney, as reflected in the nature-of-ownership descriptions.

Does the Mesoblast (MESO) Form 3 indicate insider buying or selling activity?

The Form 3 lists holdings as of the reporting date and does not identify any buy or sell transactions. Transaction summaries show no recorded purchases, sales, exercises, gifts, or restructurings, only holding entries across the reported securities.

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

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Accepted by SEC EDGAR 03/23/2026 - 08:00 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^*

George Gregory

(Last) (First) (Middle)

LEVEL 38, 55 COLLINS STREET

(Street)

MELBOURNE, VICTORIA 3000

(City) (State) (Zip)

AUSTRALIA

(Country)

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

3. Issuer Name and Ticker or Trading Symbol
MESOBLAST LTD [ MESO ]

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		10% Owner
	Officer (give title below)		Other (specify below)

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	5	D
Ordinary Shares	5,644,192	I	Through G to the Fourth Investments, LLC, of which Dr. George is a manager
Ordinary Shares(1)	128,293,280	D
Ordinary Shares(1)	80,000,000	I	Held by James George, who has granted power of attorney to Dr. George.
Ordinary Shares(1)	60,000,000	I	Held by Grant George, who has granted power of attorney to Dr. George.
Ordinary Shares(1)	4,154,100	I	Through G to the Fourth Investments, LLC, of which Dr. George is a manager

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
Warrants	03/18/2021	03/17/2028	Ordinary Shares	6,830,602	$2.86	I	Through G to the Fourth Investments, LLC, of which Dr. George is a manager.
Warrants	11/11/2024	11/10/2028	ADS	200,000	$9.06	D
Warrants	12/17/2025	12/16/2029	Ordinary Shares or the # of ADSat holder election	1,600,000	$2.5	D
Options	05/10/2026	05/09/2032	Ordinary Shares	66,667	$1.72	D
Options	05/10/2027	05/09/2032	Ordinary Shares	66,667	$1.72	D
Options	05/10/2028	05/09/2032	Ordinary Shares	66,666	$1.72	D

Explanation of Responses:

1. Such Ordinary Shares are represented by American Depositary Shares. Each ADS represents a beneficial interest in 10 ordinary shares.

Remarks:

All exercise prices for options and warrants are indicated as per above using "$A" for Australian Dollars and "$US" for US Dollars.

	/s/ Gregory George	03/23/2026
	** 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)