EXOZYMES grants Lon E. Bell 10,000 stock options

The award vests in quarterly installments beginning December 31, 2026, and ending September 30, 2029, subject to continued service.

Rhea-AI Filing Summary

EXOZYMES INC. (EXOZ) director Lon E. Bell received 10,000 stock options covering 10,000 shares of common stock, with an exercise price of $6.28 per share. Vesting is subject to his continued service, and the options expire October 1, 2033.

Insider Trade Summary

Grant/Award: 10,000 shares

Grant/Award 1 txn

Insider BELL LON E

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy) F1	10,000	$0.00	$0.00

Holdings After Transaction: Stock Option (right to buy) — 10,000 contracts (Direct)

Footnotes (1)

1. F1. The option vests in twelve (12) quarterly installments, consisting of eleven (11) installments of 833 shares and a final installment of 837 shares, beginning on 12/31/2026 and ending on 09/30/2029, subject to the reporting person's continued service with the issuer. The option expires on 10/01/2033.

Key Figures

Stock options granted: 10,000 options Underlying common shares: 10,000 shares Exercise price: $6.28 per share +4 more

7 metrics

Stock options granted 10,000 options Granted October 1, 2026

Underlying common shares 10,000 shares Shares covered by the options

Exercise price $6.28 per share Option terms

Vesting installments 12 quarterly installments Eleven installments of 833 shares and a final installment of 837 shares

Vesting begins December 31, 2026 Subject to continued service

Vesting ends September 30, 2029 Subject to continued service

Option expiration October 1, 2033 Expiration date

Key Terms

Stock Option (right to buy), quarterly installments, continued service

3 terms

Stock Option (right to buy) financial

"Stock Option (right to buy)"

quarterly installments technical

"The option vests in twelve (12) quarterly installments"

continued service technical

"subject to the reporting person's continued service with the issuer"

FAQ

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

How many options did EXOZ director Lon E. Bell receive?

Lon E. Bell received 10,000 stock options covering 10,000 shares of common stock, with an exercise price of $6.28 per share.

What is the vesting schedule for EXOZ director Lon E. Bell's options?

The options vest in 12 quarterly installments: 11 installments of 833 shares and a final installment of 837 shares. Vesting begins December 31, 2026, and ends September 30, 2029, subject to Lon E. Bell's continued service with the issuer.

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

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Available on EDGAR 10/19/2026 - 07:46 PM EDT Accepted by SEC EDGAR 10/19/2026 - 07:46 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BELL LON E

(Last) (First) (Middle)

C/O 750 ROYAL OAKS DRIVE, SUITE 106

(Street)

MONROVIA CALIFORNIA 91016

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
EXOZYMES INC. [ EXOZ ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$6.28	10/01/2026		A		10,000		(1)	10/01/2033	Common Stock	10,000	$0.00	10,000	D

Explanation of Responses:

1. The option vests in twelve (12) quarterly installments, consisting of eleven (11) installments of 833 shares and a final installment of 837 shares, beginning on 12/31/2026 and ending on 09/30/2029, subject to the reporting person's continued service with the issuer. The option expires on 10/01/2033.

	/s/ Lon E. Bell	10/19/2026
	** 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 4 (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 4: SEC 1474 (03-26)