Thomas Fountain plans sale of 1,297 common shares

Shareholder Thomas D. Fountain has filed a notice of proposed sale of 1,297 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $361,525.78.

Accepted by SEC EDGAR 02/10/2026 - 04:29 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Shareholder Thomas D. Fountain has filed a notice of proposed sale of 1,297 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $361,525.78. The shares are listed on NASDAQ, with 56,519,273 shares outstanding.

The 1,297 shares to be sold come from restricted stock units acquired on 02/01/2026, with the sale expected around 02/10/2026. The notice also lists several prior sales of common stock by Fountain between 11/18/2025 and 01/26/2026, each ranging from 1,100 to 3,343 shares.

FAQ

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

What does the Form 144 filing related to FFIV disclose?

The Form 144 notice discloses that Thomas D. Fountain plans to sell 1,297 shares of common stock on NASDAQ, with an aggregate market value of $361,525.78. The filing also details recent prior sales of the same stock in late 2025 and early 2026.

How many FFIV shares is Thomas D. Fountain planning to sell?

Thomas D. Fountain plans to sell 1,297 shares of common stock. These shares have an aggregate market value of $361,525.78, are to be sold through Morgan Stanley Smith Barney LLC, and are part of a planned transaction under Rule 144 on the NASDAQ exchange.

What is the source of the 1,297 FFIV shares in the Form 144?

The 1,297 shares come from restricted stock units acquired on 02/01/2026. The filing states they were obtained from the issuer in a restricted stock unit transaction, with the same date listed for both acquisition and payment and the nature of payment described as N/A.

When is the planned sale date for the 1,297 FFIV shares?

The Form 144 indicates an approximate sale date of 02/10/2026 for the 1,297 common shares. The planned sale will be executed on NASDAQ through Morgan Stanley Smith Barney LLC, which is identified as the broker handling this Rule 144 transaction.

What recent FFIV stock sales by Thomas D. Fountain are listed?

The notice lists multiple sales of common stock by Thomas D. Fountain between 11/18/2025 and 01/26/2026, with amounts from 1,100 to 3,343 shares. Reported gross proceeds for individual transactions range from about $252,458.40 to $875,431.41.

How many FFIV shares are outstanding according to the Form 144?

The Form 144 states that 56,519,273 shares of common stock are outstanding. This figure provides context for the planned Rule 144 sale of 1,297 shares, showing the relative size of the proposed transaction versus the total outstanding share count.

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

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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	0001728330
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	THOMAS FOUNTAIN
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	1297	361525.78	56519273	02/10/2026	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			1297	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	01/26/2026	3343	875431.41
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	01/20/2026	1100	289003.00
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	01/12/2026	1110	294150.00
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	01/05/2026	1110	292806.90
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	12/29/2025	1100	289146.00
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	12/22/2025	1100	283690.00
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	12/15/2025	1100	291236.00
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	12/08/2025	1110	276012.60
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	12/01/2025	1110	263058.90
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	11/24/2025	1110	260755.65
THOMAS D FOUNTAIN 801 5th Avenue Seattle WA 98104	Common	11/18/2025	1110	252458.40

144: Remarks and Signature

Remarks
Date of Notice	02/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	10/29/2025
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/ Thomas D. Fountain
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)