Immuron chairman reports option holdings

Immuron Ltd director and Chairman of the Board Paul Gerard Brennan filed an initial Form 3 detailing his option holdings in the company.

Rhea-AI Filing Summary

Immuron Ltd director and Chairman of the Board Paul Gerard Brennan filed an initial Form 3 detailing his option holdings in the company. He holds options over 1,000,000 Ordinary Shares at an exercise price of $0.0789 per share, expiring on October 3, 2029, and options over 666,667 Ordinary Shares at an exercise price of $0.1793 per share, expiring on November 21, 2027. Footnotes explain that these options vest in staged annual installments between November 24, 2024 and November 24, 2028, with portions becoming exercisable each year as service-based vesting conditions are met. The exercise prices were originally set in Australian dollars and translated into U.S. dollars using a Reserve Bank of Australia exchange rate.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Brennan Paul Gerard

Role Chairman of the Board

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

Holdings After Transaction: Options — 1,666,667 contracts (Direct)

Footnotes (4)

1. F1. The option became exercisable as to 333,333 shares on November 24, 2024, and 333,334 shares on November 24, 2025, and becomes exercisable as to the remaining 333,3333 shares on November 24, 2026.
2. F2. The options vest and become exercisable as to 333,333 shares on November 24, 2026; 333,333 shares on November 24, 2027; and 333,334 shares on November 24, 2028.
3. F3. The exercise price of this option, originally denominated in Australian dollar ("AUD") in the amount of AUD $0.250 is presented in the table in U.S.dollars ("USD") based on the exchange rate reported by the Reserve Bank of Australia on April 28, 2026, which was AUD 1.00 = USD 0.7172.
4. F4. The exercise price of this option, originally denominated in Australian dollar ("AUD") in the amount of AUD $0.110 is presented in the table in U.S.dollars ("USD") based on the exchange rate reported by the Reserve Bank of Australia on April 28, 2026, which was AUD 1.00 = USD 0.7172.

Key Figures

Option grant 1 exercise price: $0.0789 per share Option grant 1 underlying shares: 1,000,000 shares Option grant 2 exercise price: $0.1793 per share +2 more

5 metrics

Option grant 1 exercise price $0.0789 per share Options over 1,000,000 Ordinary Shares expiring October 3, 2029

Option grant 1 underlying shares 1,000,000 shares Ordinary Shares underlying options at $0.0789

Option grant 2 exercise price $0.1793 per share Options over 666,667 Ordinary Shares expiring November 21, 2027

Option grant 2 underlying shares 666,667 shares Ordinary Shares underlying options at $0.1793

FX rate used AUD 1.00 = USD 0.7172 Conversion of Australian dollar exercise prices to U.S. dollars

Key Terms

Form 3, Ordinary Shares, exercise price, vesting, +2 more

6 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3): { "issuerName": "Immuron Ltd""

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.

Ordinary Shares financial

""underlying_security_title": "Ordinary Shares", "underlying_security_shares""

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

exercise price financial

""conversion_or_exercise_price": "0.0789""

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vesting financial

"The options vest and become exercisable as to 333,333 shares"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

expiration date financial

""expiration_date": "2029-10-03T00:00:00.000Z""

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

Reserve Bank of Australia financial

"based on the exchange rate reported by the Reserve Bank of Australia"

FAQ

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

What does Immuron (IMRN) Chairman Paul Gerard Brennan report on this Form 3?

He reports his initial holdings of stock options in Immuron. These include options over 1,000,000 Ordinary Shares at $0.0789 and 666,667 shares at $0.1793, providing transparency about his derivative-based exposure as a company insider.

How many Immuron (IMRN) shares are covered by Paul Brennan’s options?

His reported options cover 1,666,667 Ordinary Shares in total. One grant relates to 1,000,000 underlying shares and another to 666,667 shares, giving him significant potential equity exposure if all options eventually vest and are exercised.

What are the exercise prices and expirations of Paul Brennan’s Immuron options?

He holds options with exercise prices of $0.0789 and $0.1793 per Ordinary Share. The lower-priced options expire on October 3, 2029, while the higher-priced options expire on November 21, 2027, defining the time window for potential exercise.

How do Paul Brennan’s Immuron (IMRN) options vest over time?

His options vest in annual tranches. One grant becomes exercisable in portions of roughly 333,333 shares each year from November 24, 2024 through November 24, 2026. The second grant vests in similar yearly installments from November 24, 2026 through November 24, 2028.

Why are Paul Brennan’s Immuron option exercise prices shown in U.S. dollars?

The options were originally denominated in Australian dollars. The filing converts exercise prices into U.S. dollars using a Reserve Bank of Australia exchange rate of AUD 1.00 = USD 0.7172, allowing U.S. investors to more easily interpret the strike prices.

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

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Accepted by SEC EDGAR 05/04/2026 - 06:45 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^*

Brennan Paul Gerard

(Last) (First) (Middle)

LEVEL 3, 62 LYGON STREET

(Street)

CARLTON VIC 3053

(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
Immuron Ltd [ IMRN ]

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
X	Officer (give title below)		Other (specify below)
	Chairman of the Board

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)

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
Options	11/24/2024(1)	11/21/2027	Ordinary Shares	666,667	$0.1793(3)	D
Options	11/24/2025(2)	10/03/2029	Ordinary Shares	1,000,000	$0.0789(4)	D

Explanation of Responses:

1. The option became exercisable as to 333,333 shares on November 24, 2024, and 333,334 shares on November 24, 2025, and becomes exercisable as to the remaining 333,3333 shares on November 24, 2026.

2. The options vest and become exercisable as to 333,333 shares on November 24, 2026; 333,333 shares on November 24, 2027; and 333,334 shares on November 24, 2028.

3. The exercise price of this option, originally denominated in Australian dollar ("AUD") in the amount of AUD $0.250 is presented in the table in U.S.dollars ("USD") based on the exchange rate reported by the Reserve Bank of Australia on April 28, 2026, which was AUD 1.00 = USD 0.7172.

4. The exercise price of this option, originally denominated in Australian dollar ("AUD") in the amount of AUD $0.110 is presented in the table in U.S.dollars ("USD") based on the exchange rate reported by the Reserve Bank of Australia on April 28, 2026, which was AUD 1.00 = USD 0.7172.

	/s/ Paul Gerard Brennan	05/04/2026
	** 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)