Spok Holdings, Inc

SPOK

Exchange: Nasdaq
Industry: Radiotelephone Communications
SEC CIK: 0001289945

SEC filings (opens in a new tab)

In the last 90 days, Spok Holdings, Inc insiders filed 0 open-market purchases and 2 sales; 132 institutions reported holding it in 13F filings for Q2 2026, worth $110.9M in total; no superinvestor holds it.

Q1 2025 vs. Q4 2024

How the institutions holding Spok Holdings, Inc changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of SPOK: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Of which not filed for Q1 2025	Q1 2025	Change
Holders	116	1	125	+10
Shares	10.1M	81.3K	10.6M	+535.8K (+5.3%)
Value	$162.1M	$1.31M	$173.5M	+$12.7M (+7.9%)

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held Spok Holdings, Inc at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to SPOK in Q1 2025
Institution	Shares	Value	% of portfolio
Nuveen, LLC	81,345	$1.34M	0.00%
Two Sigma Investments, LP	63,830	$1.05M	0.00%
Marshall Wace, LLP	53,257	$875.5K	0.00%
Cubist Systematic Strategies, LLC	36,604	$601.8K	0.01%
Panagora Asset Management Inc	33,863	$556.7K	0.00%
Jane Street Group, LLC	28,394	$466.8K	0.00%
Man Group plc	27,244	$447.9K	0.00%
Occudo Quantitative Strategies LP	17,513	$286.5K	0.04%
AQR Capital Management LLC	16,464	$270.7K	0.00%
Jump Financial, LLC	16,144	$265.4K	0.00%
Franklin Resources Inc	13,464	$221.3K	0.00%
DekaBank Deutsche Girozentrale	11,442	$183.0K	0.00%
EntryPoint Capital, LLC	10,322	$169.7K	0.08%
Alliancebernstein L.P.	10,060	$165.4K	0.00%
Virtus Investment Advisers, Inc.	9,392	$154.4K	0.04%
State of Wyoming	6,501	$106.9K	0.01%
Mechanics Financial Corp	813	$13.4K	0.01%
Point72 Asia (Singapore) Pte. Ltd.	470	$7.73K	0.00%
Point72 (DIFC) Ltd	204	$3.35K	0.00%
Geneos Wealth Management Inc.	200	$3.29K	0.00%
Coldstream Capital Management Inc	89	$1.46K	0.00%
SRS Capital Advisors, Inc.	72	$1.18K	0.00%
CoreCap Advisors, LLC	15	$247	0.00%

Sold out (13)

Institutions that held Spok Holdings, Inc at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of SPOK in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Magnetar Financial LLC	40,329	$647.3K
Koss-Olinger Consulting, LLC	28,033	$450.0K
Sanctuary Advisors, LLC	27,269	$439.3K
Campbell & CO Investment Adviser LLC	21,378	$343.1K
Cambria Investment Management, L.P.	18,161	$291.5K
Schonfeld Strategic Advisors LLC	13,100	$210.3K
Virtus ETF Advisers LLC	11,643	$186.9K
Venturi Wealth Management, LLC	498	$7.99K
Group One Trading, L.P.	230	$3.69K
Creative Planning	100	$1.60K
Fedenia Advisers LLC	100	$1.60K
Allworth Financial LP	31	$497
Creekmur Asset Management LLC	18	$289

Not filed for Q1 2025 yet (1)

Institutions that held Spok Holdings, Inc at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SPOK in Q4 2024 that haven't filed for Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Nuveen Asset Management, LLC	81,345	$1.31M