Zscaler CPO Geller sells $132K in stock

Zscaler’s Chief Product Officer reported a small Rule 10b5-1 planned sale of common stock and continues to hold over thirty-eight thousand shares.

Rhea-AI Filing Summary

Zscaler, Inc. insider Adam Geller, Chief Product Officer, reported selling 661 shares of common stock on September 21, 2026 at $200.00 per share. The sale was made under a Rule 10b5-1 trading plan adopted on March 20, 2026, and Geller now holds 38,308 shares directly.

Insider Trade Summary 10b5-1

Net Seller: 661 shares

Net Sell 1 txn

Insider Geller Adam

Role Chief Product Officer

Sold 661 shs ($132K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	661	$200.00	$132K

Holdings After Transaction: Common Stock — 38,308 shares (Direct)

Footnotes (1)

1. F1. The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on March 20, 2026.

Key Figures

Shares sold: 661 shares Sale price per share: $200.00 per share Approximate transaction value: $132,200 +2 more

5 metrics

Shares sold 661 shares Common stock sale reported for September 21, 2026

Sale price per share $200.00 per share Common stock sale on September 21, 2026

Approximate transaction value $132,200 661 shares sold at $200.00 per share

Shares held after transaction 38,308 shares Direct holdings of Adam Geller after the reported sale

Net shares sold 661 shares Net sell volume across all transactions in this Form 4

Key Terms

Rule 10b5-1 trading plan

1 terms

Rule 10b5-1 trading plan regulatory

"The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on March 20, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

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

What insider transaction did ZS report for Adam Geller?

Adam Geller, Chief Product Officer of Zscaler, Inc., reported a sale of 661 shares of common stock on September 21, 2026 at $200.00 per share under a Rule 10b5-1 trading plan.

How many ZS shares did Adam Geller sell and at what price?

Adam Geller sold 661 shares of Zscaler, Inc. common stock at a price of $200.00 per share, for an approximate transaction value of $132,200.

How many ZS shares does Adam Geller hold after this transaction?

After the reported sale, Adam Geller directly holds 38,308 shares of Zscaler, Inc. common stock, according to the Form 4 disclosure.

Was the ZS insider sale by Adam Geller under a Rule 10b5-1 plan?

Yes. The footnote states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted on March 20, 2026, indicating the transaction followed a pre-arranged trading schedule.

What is the net share change from Adam Geller’s ZS Form 4 filing?

The Form 4 shows a net disposition of 661 shares of Zscaler, Inc. common stock, reflecting one reported sale transaction and no reported purchases or option exercises in this filing.

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 09/21/2026 - 05:58 PM Accepted by SEC EDGAR 09/21/2026 - 05:57 PM 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).

X

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)

120 HOLGER WAY

(Street)

SAN JOSE CALIFORNIA 95134

(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)
09/21/2026

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	09/21/2026		S(1)		661	D	$200	38,308	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 sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on March 20, 2026.

Remarks:

	/s/ Torrie Nute, by power of attorney	09/21/2026
	** 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)