Sylebra group reports 6.01% passive stake in 8x8 Inc (EGHT) common stock

Rhea-AI Filing Summary

Sylebra Capital and related entities have updated their ownership disclosure for 8x8, Inc. common stock. The group reports beneficial ownership of 8,367,394 shares, representing 6.01% of the outstanding common stock, with shared voting and dispositive power and no sole authority.

The amendment notes that the position reflects a disposal of securities, and the reporting persons now describe their stance as a passive investment. They state that they have no current plans or proposals regarding 8x8 that would trigger the types of corporate actions listed under Item 4, and report no special contracts or arrangements beyond a Joint Filing Agreement.

Insights

Equity ownership & governance analyst

Sylebra keeps a 6.01% 8x8 stake but adopts a passive stance.

The filing shows Sylebra Capital and affiliated entities holding 8,367,394 8x8 shares, or 6.01% of the common stock, with shared voting and dispositive power. The amendment follows a disposal of securities but still reflects a sizable minority position.

The narrative explains that the group previously reported with an intent to potentially influence management, but now characterizes its position as a passive investment and discloses no Item 4 plans. This shifts expectations toward ordinary shareholder behavior rather than activism, while maintaining a meaningful ownership block whose future changes would appear in subsequent disclosures.

Key Figures

Beneficial ownership: 8,367,394 shares Ownership percentage: 6.01% Event date: 04/06/2026 +2 more

5 metrics

Beneficial ownership 8,367,394 shares 8x8 Inc common stock held by each reporting person

Ownership percentage 6.01% Percent of 8x8 Inc common stock class represented

Event date 04/06/2026 Date of event requiring Schedule 13D/A Amendment No. 4

Shared voting power 8,367,394 shares Shares over which each reporting person has shared voting power

Shared dispositive power 8,367,394 shares Shares over which each reporting person has shared dispositive power

Key Terms

Schedule 13D, beneficial ownership, passive investment stance, Joint Filing Agreement, +1 more

5 terms

Schedule 13D regulatory

"The Reporting Persons previously filed a to report beneficial ownership of the Issuer's Common Stock"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

beneficial ownership financial

"previously filed a to report beneficial ownership of the Issuer's Common Stock"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

passive investment stance financial

"Subsequently, the Reporting Persons have adopted a passive investment stance but were unable to transition to a Schedule 13G."

Joint Filing Agreement regulatory

"pursuant to the Agreement with Respect to (the Joint Filing Agreement) attached to this Statement as Exhibit 1."

dispositive power financial

"Number of Shares Beneficially Owned by Each Reporting Person With: | 7 | Sole Voting Power 0.00 8 | Shared Voting Power 8,367,394.00 9 | Sole Dispositive Power 0.00 10 | Shared Dispositive Power 8,367,394.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 4)

8X8 INC /DE/

(Name of Issuer)

Common Stock

(Title of Class of Securities)

282914100

(CUSIP Number)

Matthew Whitehead
3000 El Camino Real, Building 5, Suite 450
Palo Alto, CA, 94306
332 242 8518

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

04/06/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 282914100

1

Name of reporting person

SYLEBRA CAPITAL LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 8,367,394.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 8,367,394.00

11

Aggregate amount beneficially owned by each reporting person

8,367,394.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

6.01 %

14

Type of Reporting Person (See Instructions)

IA, HC

SCHEDULE 13D

CUSIP Number(s): 282914100

1

Name of reporting person

Sylebra Capital Ltd

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

HONG KONG

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 8,367,394.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 8,367,394.00

11

Aggregate amount beneficially owned by each reporting person

8,367,394.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

6.01 %

14

Type of Reporting Person (See Instructions)

IA, HC

SCHEDULE 13D

CUSIP Number(s): 282914100

1

Name of reporting person

Sylebra Capital Management, Ltd

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 8,367,394.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 8,367,394.00

11

Aggregate amount beneficially owned by each reporting person

8,367,394.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

6.01 %

14

Type of Reporting Person (See Instructions)

IA, HC

SCHEDULE 13D

CUSIP Number(s): 282914100

1

Name of reporting person

Gibson Daniel Patrick

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

ANTIGUA AND BARBUDA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 8,367,394.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 8,367,394.00

11

Aggregate amount beneficially owned by each reporting person

8,367,394.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

6.01 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock
(b)	Name of Issuer: 8X8 INC /DE/
(c)	Address of Issuer's Principal Executive Offices: 675 CREEKSIDE WAY, CAMPBELL, CALIFORNIA , 95008.
Item 1 Comment: This Amendment No. 4 on Schedule 13D/A (this "Amendment") amends the Schedule 13D filed by the Reporting Persons with the Securities and Exchange Commission on May 25, 2023, as amended from time to time (the "Schedule 13D"), relating to the shares of common stock ("Common Stock"), of 8x8, Inc., a Delaware corporation (the "Issuer"), with a class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The principal executive offices of the Issuer are located at 675 Creekside Way, Campbell, California 95008, United States. Except as specifically provided herein, this Amendment does not modify any of the information previously reported in the Schedule 13D. Unless otherwise indicated herein, capitalized terms used but not defined in this Amendment shall have the same meanings herein as are ascribed to such terms in the Schedule 13D.
Item 2.	Identity and Background
(a)	Sylebra Capital LLC ("Sylebra US") hereby files this Amendment on behalf of the Reporting Persons pursuant to the Agreement with Respect to Schedule 13D (the Joint Filing Agreement) attached to this Statement as Exhibit 1. Sylebra US and Sylebra Capital Limited ("Sylebra HK") are the investment sub-advisers to Sylebra Capital Partners Master Fund, Ltd. ("SCP MF"), Sylebra Capital Menlo Master Fund ("MENLO MF") and other advisory clients. The term Affiliated Investment Entities refers to SCP MF, MENLO MF and the other advisory clients. Sylebra Capital Management ("Sylebra Cayman") is the investment manager and parent of Sylebra HK. Sylebra Cayman owns 100% of the shares of Sylebra HK, and Daniel Patrick Gibson ("Gibson") owns 100% of the Class A shares of Sylebra Cayman and 100% of the share capital of Sylebra US. Gibson is a founder and Chief Investment Officer of Sylebra Cayman. In such capacities, Sylebra HK, Sylebra US, Sylebra Cayman, and Gibson may be deemed to share voting and dispositive power over the shares of common stock of the Issuer held by the Affiliated Investment Entities. Sylebra US, Sylebra HK, Sylebra Cayman and Gibson are each referred to herein individually as a Reporting Person and collectively as the Reporting Persons.
(b)	SYLEBRA CAPITAL LLC - 3000 El Camino Real, Building 5, Suite 450, Palo Alto, CA 94306 Sylebra Capital Ltd - 20th Floor, 256 Hennessy Road, Wan Chai, Hong Kong Sylebra Capital Management, Ltd - c/o Walkers Corporate Limited, 190 Elgin Avenue, George Town Grand Cayman KY1-9008, Cayman Islands Gibson Daniel Patrick - 3000 El Camino Real, Building 5, Suite 450, Palo Alto, CA 94306
(c)	SYLEBRA CAPITAL LLC - Investment Sub-Adviser Sylebra Capital Ltd - Investment Sub-Adviser Sylebra Capital Management, Ltd - Investment Manager Gibson Daniel Patrick - (i) director and owner of Sylebra Capital Limited and Sylebra Capital Management and (ii) a sole member of Sylebra Capital LLC
(d)	SYLEBRA CAPITAL LLC - NONE Sylebra Capital Ltd - NONE Sylebra Capital Management, Ltd - NONE Gibson Daniel Patrick - NONE
(e)	SYLEBRA CAPITAL LLC - NONE Sylebra Capital Ltd - NONE Sylebra Capital Management, Ltd - NONE Gibson Daniel Patrick - NONE
(f)	SYLEBRA CAPITAL LLC - Delaware, US Sylebra Capital Ltd - Hong Kong Sylebra Capital Management, Ltd - Cayman Islands Gibson Daniel Patrick - Antiqua and Barbuda
Item 3.	Source and Amount of Funds or Other Consideration
	N/A as this was a disposal of securities.
Item 4.	Purpose of Transaction
	N/A as this was a disposal of securities. The Reporting Persons previously filed a Schedule 13D to report beneficial ownership of the Issuer's Common Stock, reflecting an initial intent to potentially influence the Issuer's management or policies. Subsequently, the Reporting Persons have adopted a passive investment stance but were unable to transition to a Schedule 13G. The Reporting Persons have no plans or proposals with respect to the Issuer that would result in any of the actions specified in clauses (a) through (j) of Item 4 of Schedule 13D.
Item 5.	Interest in Securities of the Issuer
(a)	SYLEBRA CAPITAL LLC - 8,367,394; 6.01% Sylebra Capital Ltd - 8,367,394; 6.01% Sylebra Capital Management, Ltd - 8,367,394; 6.01% Gibson Daniel Patrick - 8,367,394; 6.01%
(b)	SYLEBRA CAPITAL LLC - 8,367,394 Sylebra Capital Ltd - 8,367,394 Sylebra Capital Management, Ltd - 8,367,394 Gibson Daniel Patrick - 8,367,394
(c)	SYLEBRA CAPITAL LLC - Please refer to exhibit 2 in relation to the transactions with respect to the Issuers common stock within the last 60 days by the Reporting Persons. Sylebra Capital Ltd - Please refer to exhibit 2 in relation to the transactions with respect to the Issuers common stock within the last 60 days by the Reporting Persons. Sylebra Capital Management, Ltd - Please refer to exhibit 2 in relation to the transactions with respect to the Issuers common stock within the last 60 days by the Reporting Persons. Gibson Daniel Patrick - Please refer to exhibit 2 in relation to the transactions with respect to the Issuers common stock within the last 60 days by the Reporting Persons.
(d)	SYLEBRA CAPITAL LLC - No person other than the Reporting Persons has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Issuer's Common Stock. Sylebra Capital Ltd - No person other than the Reporting Persons has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Issuer's Common Stock. Sylebra Capital Management, Ltd - No person other than the Reporting Persons has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Issuer's Common Stock. Gibson Daniel Patrick - No person other than the Reporting Persons has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Issuer's Common Stock.
(e)	N/A
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	The information provided in Items 3, 4 and 5 is hereby incorporated herein by this reference. Except for the Joint Filing Agreement attached hereto as Exhibit 1, to the knowledge of the Reporting Persons, there are no contracts, arrangements, understandings or relationships (legal or otherwise) among the Reporting Persons or, to the knowledge of any of the Reporting Persons, any other person or entity referred to in Item 2, or between such persons and any other person, with respect to any securities of the Issuer, including, but not limited to, transfer or voting of any of the securities, finders fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies.
Item 7.	Material to be Filed as Exhibits.
	Exhibit 1 Joint Filing Agreement, dated as of April 8, 2026 by and among the Reporting Persons. Exhibit 2 - Transaction history.

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.

SYLEBRA CAPITAL LLC

Signature:	/s/ Matthew Whitehead
Name/Title:	Matthew Whitehead, Authorized Signatory
Date:	04/08/2026

Sylebra Capital Ltd

Signature:	/s/ Matthew Whitehead
Name/Title:	Matthew Whitehead, Authorized Signatory
Date:	04/08/2026

Sylebra Capital Management, Ltd

Signature:	/s/ Matthew Whitehead
Name/Title:	Matthew Whitehead, Authorized Signatory
Date:	04/08/2026

Gibson Daniel Patrick

Signature:	/s/ Matthew Whitehead
Name/Title:	Matthew Whitehead, Authorized Signatory
Date:	04/08/2026

FAQ

What ownership in 8x8 Inc (EGHT) does Sylebra report in this Schedule 13D/A?

Sylebra Capital and related reporting persons disclose beneficial ownership of 8,367,394 shares of 8x8 Inc common stock, representing 6.01% of the class. They report only shared voting and dispositive power over these shares, with no sole authority indicated.

What change in investment stance does this 8x8 (EGHT) Schedule 13D/A describe?

The reporting persons state they previously filed reflecting an intent to potentially influence 8x8’s management or policies but now describe a passive investment stance. They further note having no plans or proposals that would trigger the actions listed in Item 4.

Who are the reporting persons in the 8x8 Inc (EGHT) Schedule 13D/A Amendment No. 4?

The reporting persons are Sylebra Capital LLC, Sylebra Capital Ltd, Sylebra Capital Management, Ltd, and Daniel Patrick Gibson. They are linked through advisory and management roles over affiliated investment entities that hold the 8x8 common stock position.

Does the Sylebra filing for 8x8 (EGHT) indicate recent transactions in the last 60 days?

Yes. For each reporting person, the document refers to Exhibit 2 for transaction history in 8x8 common stock during the last 60 days. The main text notes the overall position reflects a disposal of securities but does not detail individual trades.

What percentage threshold does Sylebra cross in this 8x8 (EGHT) ownership report?

The reporting group discloses beneficial ownership of 6.01% of 8x8’s common stock. This level exceeds the 5% threshold that requires Schedule 13D reporting, explaining why the position and any material changes continue to be reported through such amendments.

Are there special agreements related to Sylebra’s 8x8 (EGHT) shares?

The filing states there are no contracts or arrangements regarding 8x8 securities beyond a Joint Filing Agreement among the reporting persons. It explicitly notes no other understandings on transfers, voting, profit sharing, or proxies in relation to the issuer’s common stock.