FMR LLC reports 0.9% Five9 (NASDAQ: FIVN) stake in Schedule 13G/A

Rhea-AI Filing Summary

FMR LLC and Abigail P. Johnson report beneficial ownership of 692,076.41 shares of Five9 Inc. common stock, representing 0.9% of the class as of the December 31, 2025 event date.

FMR LLC has sole voting power over 675,800.33 shares and sole dispositive power over 692,076.41 shares. Abigail P. Johnson reports sole dispositive power over the same 692,076.41 shares with no voting power. The filing states the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of Five9. One or more other persons may receive dividends or sale proceeds from these shares, but no such person holds more than five percent of the outstanding common stock.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 7)

FIVE9 INC

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

338307101

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 338307101

1

Names of Reporting Persons

FMR LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 675,800.33
6	Shared Voting Power 0.00
7	Sole Dispositive Power 692,076.41
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

692,076.41

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

0.9 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP No. 338307101

1

Names of Reporting Persons

Abigail P. Johnson

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 692,076.41
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

692,076.41

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

0.9 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: FIVE9 INC
(b)	Address of issuer's principal executive offices: 3001 BISHOP DRIVE,SUITE 350,San Ramon,CA,USA,94583
Item 2.
(a)	Name of person filing: FMR LLC
(b)	Address or principal business office or, if none, residence: 245 Summer Street, Boston, Massachusetts 02210
(c)	Citizenship: Not applicable
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP No.: 338307101
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 692076.41
(b)	Percent of class: 0.9 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Please see the responses to Items 5 and 6 on the cover page.
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 692076.41
	(iv) Shared power to dispose or to direct the disposition of: 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of FIVE9 INC. No one other person's interest in the COMMON STOCK of FIVE9 INC is more than five percent of the total outstanding COMMON STOCK.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See attached Exhibit 99.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

FMR LLC

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 3, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:	02/04/2026

Abigail P. Johnson

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 26, 2023, by and on behalf of Abigail P. Johnson**
Date:	02/04/2026

Comments accompanying signature: * This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 10, 2023, accession number: 0000315066-23-000003. ** This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 31, 2023, accession number: 0000315066-23-000038.

Exhibit Information

Please see Exhibit 99 for 13d-1(k) (1) agreement.

FAQ

How many Five9 (FIVN) shares does FMR LLC report owning in this Schedule 13G/A?

FMR LLC reports beneficial ownership of 692,076.41 shares of Five9 common stock. It also reports sole voting power over 675,800.33 shares and sole dispositive power over the full 692,076.41 shares, reflecting its institutional stake as of the December 31, 2025 event date.

What percentage of Five9 (FIVN) does FMR LLC and Abigail P. Johnson own?

The filing states that FMR LLC and Abigail P. Johnson beneficially own 0.9% of Five9’s common stock. This percentage is based on 692,076.41 shares reported as beneficially owned, indicating an institutional position below the five percent ownership threshold disclosed under Item 5.

Are FMR LLC’s Five9 (FIVN) shares held to influence control of the company?

No. The certification explains the securities were acquired and are held in the ordinary course of business and were not acquired or held to change or influence control of Five9, nor in connection with any transaction intended to have that purpose or effect.

What are Abigail P. Johnson’s voting and dispositive powers over Five9 (FIVN) shares?

Abigail P. Johnson reports no voting power over Five9 shares but has sole dispositive power over 692,076.41 shares. This means she can direct the disposition of those shares but does not have authority to vote them, according to the ownership table in the filing.

Do other persons have rights to dividends or sale proceeds from FMR LLC’s Five9 (FIVN) shares?

Yes. The filing notes that one or more other persons may receive dividends or sale proceeds from the Five9 common stock. However, it also specifies that no single such person has an interest in more than five percent of the total outstanding common stock.

Who signed the Five9 (FIVN) Schedule 13G/A on behalf of FMR LLC and Abigail P. Johnson?

Both signatures were executed by Stephanie J. Brown on February 4, 2026. She signed as duly authorized under separate powers of attorney effective January 3, 2023 for FMR LLC and January 26, 2023 for Abigail P. Johnson, as referenced in the comments section.