Spok Holdings, Inc (SPOK) Institutional Ownership

Institutions by Trading Activity

19,040,984Shares Outstanding

640,783Shares held by institutions

$8,477,559Value of institutional holdings

71.05%Institutional ownership %

1.63%Shares Changed QoQ

105No. of institutional investors

Recent 13F filings as of December 2025 show that 6 institutional investors hold a position in Spok Holdings, Inc (NASDAQ:SPOK).

Institutional ownership in Spok Holdings edged down to 0.2% in December 2025, compared to 53.7% in September 2025.
The company experienced a -43.89% quarterly change in institutional shares held, alongside a decrease of 94.83% in total owners annually.
Among the 6 institutional holders of Spok Holdings, 4 added to their stakes while 2 trimmed their positions and 0 held steady.
The total number of shares held by institutions in Spok Holdings decreased to 42.97K as of December 2025, a net change of down by 33.62K shares quarter on quarter, and down 10.06Mn shares year over year.
Hennion & Walsh Asset Management, Inc. continues to be the largest institutional holder of Spok Holdings as of December 31, 2025, with a position of 18.85K shares, representing 0.09% of the company's outstanding stock.
Among the most significant buyers of Spok Holdings during December 2025 were Versant Capital Management, Inc (6.65K), GAMMA Investing LLC (1.21K), NISA INVESTMENT ADVISORS, LLC (746), True Wealth Design, LLC (45).
Leading sellers of Spok Holdings stock in December 2025 included Hennion & Walsh Asset Management, Inc. (31.09K), Significant Wealth Partners LLC (11.17K).
The top 6 institutional holders of Spok Holdings for the quarter ending December 2025 included Hennion & Walsh Asset Management, Inc. (18.85K), Significant Wealth Partners LLC (14.80K), Versant Capital Management, Inc (6.65K), GAMMA Investing LLC (1.84K), NISA INVESTMENT ADVISORS, LLC (792), True Wealth Design, LLC (45).

640,783 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	30 Sep, 2025	1,935,262	212,388	12.33%	$33,383,270.00
RENAISSANCE TECHNOLOGIES LLC	30 Sep, 2025	1,172,550	115,900	10.97%	$20,226,488.00
VANGUARD GROUP INC	30 Sep, 2025	1,154,631	6,095	0.53%	$19,917,386.00
DIMENSIONAL FUND ADVISORS LP	30 Sep, 2025	719,050	8,160	1.15%	$12,403,870.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	601,226	82,899	15.99%	$10,373,296.00
STATE STREET CORP	30 Sep, 2025	457,428	12,251	2.75%	$7,890,633.00
ACADIAN ASSET MANAGEMENT LLC	30 Sep, 2025	428,060	38,051	9.76%	$7,383.00
HighTower Advisors, LLC	30 Sep, 2025	408,011	-44,798	-9.89%	$7,038,185.00
GOLDMAN SACHS GROUP INC	30 Sep, 2025	395,900	-133,986	-25.29%	$6,829,283.00
CSM Advisors, LLC	30 Sep, 2025	334,345	-14,840	-4.25%	$5,766.00
Connor, Clark & Lunn Investment Management Ltd.	30 Sep, 2025	258,284	59,306	29.81%	$4,455,399.00
NORTHERN TRUST CORP	30 Sep, 2025	240,986	-2,017	-0.83%	$4,157,010.00
Bank of New York Mellon Corp	30 Sep, 2025	195,911	404	0.21%	$3,379,473.00
TWO SIGMA INVESTMENTS, LP	30 Sep, 2025	169,231	60,462	55.59%	$2,919,235.00
Qube Research & Technologies Ltd	30 Sep, 2025	161,975	16,157	11.08%	$2,794,069.00
Uniplan Investment Counsel, Inc.	30 Sep, 2025	161,242	-26,986	-14.34%	$2,781,436.00
MORGAN STANLEY	30 Sep, 2025	144,063	-8,360	-5.48%	$2,485,095.00
North Star Investment Management Corp.	30 Sep, 2025	122,000	0	0.00%	$2,104,500.00
JPMORGAN CHASE & CO	30 Sep, 2025	114,533	-109,520	-48.88%	$1,975,694.00
Trexquant Investment LP	30 Sep, 2025	88,869	-22,612	-20.28%	$1,532,990.00

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