Protalix director granted 17,000 stock options

A Protalix BioTherapeutics director received new stock option and RSU grants as part of equity compensation.

Rhea-AI Filing Summary

Protalix BioTherapeutics, Inc. (PLX) reported that director Gwen A. Melincoff received equity awards on September 3, 2026. She was granted 17,000 stock options to buy common stock at an exercise price of $2.59 per share, expiring September 3, 2036, vesting in 12 equal quarterly installments from the grant date.

She was also granted 8,500 restricted stock units (RSUs), each representing one share of common stock, which vest in 12 equal quarterly installments from the grant date. Footnotes note additional outstanding option grants at various exercise prices and expirations that are not included in the post-transaction amounts shown for these awards.

Insider Trade Summary

Grant/Award: 25,500 shares

Grant/Award 2 txns

Insider Melincoff Gwen A

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Options (Right to Buy) F1, F2	17,000	$0.00	$0.00
Grant/Award	Restricted Stock Units F3, F4	8,500	$0.00	$0.00

Holdings After Transaction: Stock Options (Right to Buy) — 17,000 contracts (Direct); Restricted Stock Units — 8,500 contracts (Direct)

Footnotes (4)

1. F1. The shares of common stock underlying the stock options vest in 12 equal quarterly installments commencing upon the date of grant.
2. F2. Does not include (i) options to purchase 40,000 shares of common stock at an exercise price equal to $3.55 per share that expire on January 20, 2030, (ii) options to purchase 50,000 shares of common stock at an exercise price equal to $1.03 per share that expire on September 7, 2032, (iii) options to purchase 61,676 shares of common stock at an exercise price equal to $1.66 per share that expire on September 29, 2033 and (iv) options to purchase 15,000 shares of common stock at an exercise price equal to $1.64 per share that expire on September 3, 2035.
3. F3. Each restricted stock unit (RSU) represents the right to receive, following vesting, one share of the Isuer's common stock.
4. F4. The shares of common stock underlying the RSUs vest in 12 equal quarterly installments commencing upon the date of grant.

Key Figures

Stock options granted: 17,000 options Option exercise price: $2.59 per share Option expiration: September 3, 2036 +5 more

8 metrics

Stock options granted 17,000 options Grant to director on September 3, 2026

Option exercise price $2.59 per share New 17,000 stock options granted September 3, 2026

Option expiration September 3, 2036 New 17,000 stock options

RSUs granted 8,500 RSUs Grant to director on September 3, 2026

Legacy options at $3.55 40,000 options Existing options expiring January 20, 2030

Legacy options at $1.03 50,000 options Existing options expiring September 7, 2032

Legacy options at $1.66 61,676 options Existing options expiring September 29, 2033

Legacy options at $1.64 15,000 options Existing options expiring September 3, 2035

Key Terms

Restricted Stock Units, Stock Options, exercise price, vesting, +1 more

5 terms

Restricted Stock Units financial

"The "Restricted Stock Units" grant represents the right to receive shares"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Stock Options financial

""Stock Options (Right to Buy)" were granted to purchase common stock"

Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.

exercise price financial

"options to purchase 40,000 shares of common stock at an exercise price"

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

"shares of common stock underlying the stock options vest in 12 equal quarterly"

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

"options to purchase 15,000 shares ... that expire on September 3, 2035"

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.

FAQ

What equity awards did Protalix BioTherapeutics (PLX) grant to Gwen A. Melincoff?

Gwen A. Melincoff received 17,000 stock options with a $2.59 exercise price and 8,500 RSUs, all granted on September 3, 2026 as reported equity compensation.

How do the new PLX stock options granted to the director vest?

The 17,000 stock options vest in 12 equal quarterly installments commencing on the grant date of September 3, 2026, and they expire on September 3, 2036.

How do the new PLX RSUs granted to the director vest?

The 8,500 RSUs vest in 12 equal quarterly installments commencing on the grant date. Each RSU represents the right to receive one share of Protalix BioTherapeutics common stock after vesting.

What is the exercise price and expiration for the new PLX stock options?

The newly granted stock options cover 17,000 shares of Protalix common stock at an exercise price of $2.59 per share and expire on September 3, 2036.

Does this PLX Form 4 indicate trades under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and the transactions are reported as grant or award acquisitions rather than open-market trades.

What other stock options for PLX does the director have, according to this filing?

Footnotes state additional options: 40,000 shares at $3.55 expiring January 20, 2030; 50,000 shares at $1.03 expiring September 7, 2032; 61,676 shares at $1.66 expiring September 29, 2033; and 15,000 shares at $1.64 expiring September 3, 2035.

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

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Available on EDGAR 09/04/2026 - 06:04 AM Accepted by SEC EDGAR 09/04/2026 - 06:00 AM 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^*

Melincoff Gwen A

(Last) (First) (Middle)

C/O PROTALIX BIOTHERAPEUTICS, INC.

2 SNUNIT STREET SCIENCE PARK, POB 455

(Street)

CARMIEL 2161401

(City) (State) (Zip)

ISRAEL

(Country)

2. Issuer Name and Ticker or Trading Symbol
Protalix BioTherapeutics, Inc. [ PLX ]

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)
09/03/2026

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 Options (Right to Buy)	$2.59	09/03/2026		A		17,000		(1)	09/03/2036	Common Stock	17,000	$0	17,000(2)	D
Restricted Stock Units	(3)	09/03/2026		A		8,500		(4)	(4)	Common Stock	8,500	$0	8,500	D

Explanation of Responses:

1. The shares of common stock underlying the stock options vest in 12 equal quarterly installments commencing upon the date of grant.

2. Does not include (i) options to purchase 40,000 shares of common stock at an exercise price equal to $3.55 per share that expire on January 20, 2030, (ii) options to purchase 50,000 shares of common stock at an exercise price equal to $1.03 per share that expire on September 7, 2032, (iii) options to purchase 61,676 shares of common stock at an exercise price equal to $1.66 per share that expire on September 29, 2033 and (iv) options to purchase 15,000 shares of common stock at an exercise price equal to $1.64 per share that expire on September 3, 2035.

3. Each restricted stock unit (RSU) represents the right to receive, following vesting, one share of the Isuer's common stock.

4. The shares of common stock underlying the RSUs vest in 12 equal quarterly installments commencing upon the date of grant.

	/s/ Joseph R. Magnas, Attorney-in-Fact	09/03/2026
	** 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)