Zscaler grants Adam Geller a 19,859-share stock award

The award is scheduled to vest in 12 equal quarterly installments beginning December 15, 2026.

Rhea-AI Filing Summary

Zscaler, Inc. Chief Product Officer Adam Geller acquired an award of 19,859 restricted stock units on October 19, 2026. The reported direct position after the transaction was 58,167 shares. The awarded units vest in 12 equal quarterly installments beginning December 15, 2026.

Insider Trade Summary

Grant/Award: 19,859 shares

Grant/Award 1 txn

Insider Geller Adam

Role Chief Product Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	19,859	$0.00	$0.00

Holdings After Transaction: Common Stock — 58,167 shares (Direct)

Footnotes (1)

1. F1. The reported shares are represented by restricted stock units, which vest in 12 equal quarterly installments beginning on December 15, 2026.

Key Figures

Restricted stock units awarded: 19,859 shares Reported direct position: 58,167 shares Vesting installments: 12 equal quarterly installments +1 more

4 metrics

Restricted stock units awarded 19,859 shares Awarded October 19, 2026

Reported direct position 58,167 shares Following the transaction

Vesting installments 12 equal quarterly installments Beginning December 15, 2026

Vesting start date December 15, 2026 Restricted stock unit award

Key Terms

restricted stock units, vest, quarterly installments

3 terms

restricted stock units financial

"shares are represented by restricted stock units"

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.

vest financial

"vest in 12 equal quarterly installments"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

quarterly installments financial

"12 equal quarterly installments"

FAQ

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

How many shares did ZS Chief Product Officer Adam Geller receive?

Adam Geller received 19,859 restricted stock units on October 19, 2026. His reported direct position after the transaction was 58,167 shares.

When do Adam Geller's ZS restricted stock units vest?

The 19,859 restricted stock units vest in 12 equal quarterly installments beginning December 15, 2026.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/20/2026 - 09:21 PM EDT Accepted by SEC EDGAR 10/20/2026 - 09:21 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^*

Geller Adam

(Last) (First) (Middle)

4401 GREAT AMERICA PARKWAY

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Zscaler, Inc. [ ZS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/19/2026

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
Common Stock	10/19/2026		A		19,859(1)	A	$0	58,167	D

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

Explanation of Responses:

1. The reported shares are represented by restricted stock units, which vest in 12 equal quarterly installments beginning on December 15, 2026.

Remarks:

	/s/ Torrie Nute, by power of attorney	10/20/2026
	** 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)