Renaissance Technologies Discloses 5.13% Stake in Spok Holdings (SPOK)

Renaissance Technologies LLC and Renaissance Technologies Holdings Corporation report beneficial ownership of 1,056,650 shares of Spok Holdings, Inc., representing 5.13% of the outstanding common stock.

Rhea-AI Filing Summary

Renaissance Technologies LLC and Renaissance Technologies Holdings Corporation report beneficial ownership of 1,056,650 shares of Spok Holdings, Inc., representing 5.13% of the outstanding common stock. The filing states both reporting persons have sole voting power and sole dispositive power over those shares. The statement also notes that certain funds managed by Renaissance Technologies have the right to receive dividends or proceeds from the sale of these securities. The disclosure is presented on Schedule 13G and identifies Renaissance Technologies LLC as an investment adviser and Renaissance Technologies Holdings Corporation as a holding company.

Insights

Financial Analyst

TL;DR: Renaissance holds a material 5.13% SPOK position with sole voting and dispositive power.

The Schedule 13G discloses a beneficial holding of 1,056,650 shares, equal to 5.13% of Spok Holdings' common stock, with the reporting entities asserting sole voting and sole dispositive authority. This crosses the 5% reporting threshold and therefore is a material ownership disclosure for investors and regulators. The filing also notes that certain funds managed by Renaissance have rights to dividends or sale proceeds related to these shares. No shared voting power or other controlling group is identified in the report.

Corporate Governance Expert

TL;DR: A >5% position by Renaissance is a material ownership disclosure; control of votes rests solely with the reporting persons.

The filing clearly states that both Renaissance Technologies LLC and Renaissance Technologies Holdings Corporation have sole voting and dispositive power for all 1,056,650 shares reported. That singular control over votes is an explicit fact in the document and is relevant to governance transparency. The report does not identify any group members or shared powers and includes the disclosure that certain funds managed by Renaissance may receive dividends or proceeds.

FAQ

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

How many SPOK shares does Renaissance Technologies report owning?

1,056,650 shares, representing 5.13% of Spok Holdings' common stock.

Who filed the Schedule 13G for SPOK?

The Schedule 13G was filed by Renaissance Technologies LLC and Renaissance Technologies Holdings Corporation.

Does Renaissance have voting power over the reported SPOK shares?

Yes. The filing reports sole voting power and sole dispositive power for all 1,056,650 shares.

Do any other parties have rights to dividends or sale proceeds from these SPOK shares?

The filing states that certain funds managed by Renaissance Technologies have the right to receive dividends and proceeds from the sale of the securities.

What type of filing was made for the SPOK disclosure?

The disclosure was made on Schedule 13G for beneficial ownership of Spok Holdings common stock.

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

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Accepted by SEC EDGAR 08/13/2025 - 04:12 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Spok Holdings, Inc

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

84863T106

(CUSIP Number)

04/07/2025

(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. 84863T106

1

Names of Reporting Persons

Renaissance Technologies 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 1,056,650.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,056,650.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,056,650.00

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)

5.13 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP No. 84863T106

1

Names of Reporting Persons

Renaissance Technologies Holdings Corporation

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 1,056,650.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,056,650.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,056,650.00

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)

5.13 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Spok Holdings, Inc
(b)	Address of issuer's principal executive offices: 3000 TECHNOLOGY DRIVE, SUITE 400, PLANO, TX 75074
Item 2.
(a)	Name of person filing: This Schedule 13G is being filed by Renaissance Technologies LLC ("RTC") and Renaissance Technologies Holdings Corporation ("RTHC").
(b)	Address or principal business office or, if none, residence: 800 Third Avenue New York, New York 10022
(c)	Citizenship: RTC is a Delaware limited liability company, and RTHC is a Delaware corporation.
(d)	Title of class of securities: Common Stock, par value $0.0001 per share
(e)	CUSIP No.: 84863T106
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: 1056650
(b)	Percent of class: 5.13 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1056650
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1056650
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	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. Certain funds managed by RTC have the right to receive dividends and proceeds from the sale of the securities which are the subject of this report.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
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.

Renaissance Technologies LLC

Signature:	Brian Felczak
Name/Title:	Chief Financial Officer
Date:	08/13/2025

Renaissance Technologies Holdings Corporation

Signature:	Brian Felczak
Name/Title:	Vice President
Date:	08/13/2025

Exhibit Information

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned agrees to the filing on behalf of each of a Statement on Schedule 13G, and all amendments thereto, with respect to the shares of Common Stock, par value $0.0001 per share of Spok Holdings, Inc.