Spok Holdings SPOK Institutional Ownership

NASDAQ SPOK

$10.49 +0.08 (+0.77%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

132 Institutions

Increased 77 58.3%

Unchanged 15 11.4%

Reduced 40 30.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

52.03%

▲+1.52 pp QoQ

Shares Held by Institutions

10.87Mn

of 20.90Mn outstanding

▲+7.39% QoQ

Shares Outstanding

20.90Mn

10.03Mn held outside 13F filers

Institutional Investors

132

filed 13F for Jun 2026

▼-7 vs prior quarter

Net Shares Added (QoQ)

+748.42K

accumulated since last quarter

Value of Holdings

$114.07Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Spok Holdings, Inc (NASDAQ:SPOK) is held by 132 institutional investors per 13F filings through June 2026.

Their combined ownership stood at 52.0% of outstanding shares in June 2026, up from 50.5% in March 2026.
They increased total shares held in Spok Holdings by 7.39% from the prior quarter, while the number of investors in SPOK increased 2.33% year over year.
Of these 132 funds, 77 grew their exposure to Spok Holdings, 40 cut back, and 15 maintained positions.
Altogether, these fund groups held 10.87Mn shares in SPOK by June 2026, up by 748.42K shares quarter on quarter, and down 11.08Mn shares year over year.
BlackRock, Inc. is the top holder of Spok Holdings as of June 30, 2026, with 1.72Mn shares representing 8.23% of outstanding stock.
The most significant purchases of SPOK for the quarter ending June 2026 came from CITADEL ADVISORS LLC (165.67K), Qube Research & Technologies Ltd (115.56K), UNITED CAPITAL FINANCIAL ADVISORS, LLC (90.09K), FMR LLC (74.13K), Sixth Street Partners Management Company, L.P. (69.86K).
The largest sales of SPOK for the quarter ending June 2026 came from RENAISSANCE TECHNOLOGIES LLC (113.0K), Trexquant Investment LP (89.67K), JANE STREET GROUP, LLC (71.33K), Point72 Asset Management, L.P. (70.52K), HighTower Advisors, LLC (41.92K).
Spok Holdings's 10 largest shareholders as of June 2026 include BlackRock, Inc. (1.72Mn), RENAISSANCE TECHNOLOGIES LLC (1.15Mn), VANGUARD CAPITAL MANAGEMENT LLC (872.36K), DIMENSIONAL FUND ADVISORS LP (717.62K), GEODE CAPITAL MANAGEMENT, LLC (595.84K), State Street Corp (471.58K), HighTower Advisors, LLC (339.89K), Qube Research & Technologies Ltd (287.62K), Goldman Sachs Group Inc (281.98K), VANGUARD PORTFOLIO MANAGEMENT LLC (273.28K) per Business Quant data.

Form 13F Holdings

132 Institutional Holders

Report period 30 Jun, 2026

Total shares held 10.87Mn

Of outstanding 52.03%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	1,719,219	8.23%	▲42,992	+2.56%	$17.60Mn
2	RENAISSANCE TECHNOLOGIES LLC	0001037389	1,148,579	5.50%	▼113,000	-8.96%	$11.76Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	872,359	4.17%	▲12,829	+1.49%	$8.93Mn
4	DIMENSIONAL FUND ADVISORS LP	0000354204	717,616	3.43%	▲1,747	+0.24%	$7.35Mn
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	595,842	2.85%	▲50,124	+9.18%	$6.10Mn
6	State Street Corp	0000093751	471,584	2.26%	▲9,794	+2.12%	$4.83Mn
7	HighTower Advisors, LLC	0001462245	339,892	1.63%	▼41,923	-10.98%	$3.48Mn
8	Qube Research & Technologies Ltd	0001729829	287,617	1.38%	▲115,560	+67.16%	$2.95Mn
9	Goldman Sachs Group Inc	0000886982	281,980	1.35%	▲62,399	+28.42%	$2.89Mn
10	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	273,278	1.31%	▲8,250	+3.11%	$2.80Mn
11	Bank of New York Mellon Corp	0001390777	234,112	1.12%	▲16,309	+7.49%	$2.40Mn
12	Northern Trust Corp	0000073124	222,895	1.07%	▲6,352	+2.93%	$2.28Mn
13	Uniplan Investment Counsel, Inc.	0001520710	215,764	1.03%	▲6,162	+2.94%	$2.21Mn
14	CSM Advisors, LLC	0001863523	212,910	1.02%	▼220	-0.10%	$2.18K
15	UNITED CAPITAL FINANCIAL ADVISORS, LLC	0001463217	194,815	0.93%	▲90,092	+86.03%	$1.99Mn
16	CITADEL ADVISORS LLC	0001423053	183,447	0.88%	▲165,672	+932.05%	$1.88Mn
17	Morgan Stanley	0000895421	166,575	0.80%	▲6,749	+4.22%	$1.71Mn
18	JACOBS LEVY EQUITY MANAGEMENT, INC	0000884414	160,312	0.77%	▲43,502	+37.24%	$1.64Mn
19	GSA CAPITAL PARTNERS LLP	0001362033	150,124	0.72%	▲64,300	+74.92%	$1.54K
20	VANGUARD FIDUCIARY TRUST CO	0000933478	136,898	0.66%	▲7,650	+5.92%	$1.40Mn

Showing 1 to 20 of 132 holders