F5 officer plans $1.8M stock sale under Rule 144

Rhea-AI Filing Summary

F5, INC. (FFIV) received a notice under Rule 144 that officer Michael Montoya plans to sell 4,426 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services. The planned sale has an aggregate market value of $1,822,228.46, with the shares listed on NASDAQ.

The notice states an approximate sale date of September 14, 2026. It also reports that 56,627,182 shares of F5, Inc. common stock were outstanding. The shares to be sold were acquired upon vesting of restricted stock units during the period from February 1, 2026 through August 1, 2026.

Key Figures

Shares to be sold: 4,426 shares Aggregate market value: $1,822,228.46 Shares outstanding: 56,627,182 shares +3 more

6 metrics

Shares to be sold 4,426 shares Common stock covered by the Rule 144 notice

Aggregate market value $1,822,228.46 Total market value of 4,426 shares proposed for sale

Shares outstanding 56,627,182 shares Common shares outstanding of F5, Inc. reported in the notice

Approximate sale date September 14, 2026 Planned sale date for the shares under Rule 144

RSU vesting period start February 1, 2026 Beginning of period when RSUs that generated these shares vested

RSU vesting period end August 1, 2026 End of period when RSUs that generated these shares vested

Key Terms

Rule 144, Restricted Stock Units, aggregate market value, securities to be sold

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"Common | 02/01/2026 | Restricted Stock Units | Issuer"

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.

aggregate market value financial

"Common ... | 4426 | 1822228.46 | 56627182 | 09/14/2026"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

securities to be sold financial

"The securities to be sold were acquired upon the vesting"

FAQ

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

What does the Form 144 filing disclose for F5, Inc. (FFIV)?

The filing discloses that officer Michael Montoya intends to sell 4,426 shares of F5, Inc. common stock under Rule 144 through Morgan Stanley Smith Barney LLC, with an aggregate market value of $1,822,228.46 and an approximate sale date of September 14, 2026.

How many F5, Inc. (FFIV) shares are covered by this Form 144 notice?

The notice covers 4,426 shares of F5, Inc. common stock proposed to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services, as reported in the Rule 144 filing.

What is the reported market value of the F5, Inc. (FFIV) shares in this Form 144?

The Rule 144 filing reports an aggregate market value of $1,822,228.46 for the 4,426 shares of F5, Inc. common stock that officer Michael Montoya plans to sell.

When are the F5, Inc. (FFIV) shares expected to be sold under this Form 144?

The filing lists an approximate sale date of September 14, 2026 for the 4,426 F5, Inc. common shares to be sold on NASDAQ through Morgan Stanley Smith Barney LLC.

How were the F5, Inc. (FFIV) shares in the Form 144 acquired?

The filing states that the securities to be sold were acquired upon the vesting of restricted stock units during the period from February 1, 2026 through August 1, 2026.

How many F5, Inc. (FFIV) shares were outstanding according to this Form 144?

The Rule 144 notice reports that 56,627,182 shares of F5, Inc. common stock were outstanding in connection with the disclosure of this planned sale.

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

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Available on EDGAR 09/14/2026 - 04:48 PM Accepted by SEC EDGAR 09/14/2026 - 04:44 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001869466
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	F5, INC.
SEC File Number	000-26041
Address of Issuer	801 5th Avenue Seattle WASHINGTON 98104
Phone	2062725555
Name of Person for Whose Account the Securities are To Be Sold	MICHAEL MONTOYA
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	4426	1822228.46	56627182	09/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/01/2026	Restricted Stock Units	Issuer			4426	02/01/2026	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 02/01/2026 through 08/01/2026.
Date of Notice	09/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/15/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Michael Montoya
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)