SPOK · Spok Holdings, Inc · Shareholders & Ownership

$11.76 +0.01 (+0.09%) At close · Nov 6 Play latest call Q3 2026 earnings call transcript

Russell 2000 member Rebalance outlook locked

Market Cap

$246.14M

20.93M

Volume · Nov 6 205.24K Avg daily vol (3M) 163.23K

Every disclosed holder of SPOK in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns SPOK

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	133	10,839,779	51.79%	Yes
Insiders (Forms 3, 4, 5)	9	1,557,487	7.44%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	8,532,786	40.77%	Rest
Registered funds (N-PORT, not summed)	156	4,328,041	20.68%	No

Shares outstanding: 20,930,052, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of SPOK

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,719,219	8.21%	+42,992	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	505,577	2.42%	+53,184	Jun 30, 2026	iShares Trust, not summed
1.2	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	215,934	1.03%	+41,147	Jun 30, 2026	iShares Trust, not summed
1.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	70,063	0.33%	+18,821	Jun 30, 2026	iShares Trust, not summed
1.4	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	43,462	0.21%	+11,210	Jun 30, 2026	Quantitative Master Series LLC, not summed
1.5	Diversified Equity Alpha Master Portfolio Fund S000004282 · Registered fund · Jun 30, 2026 Master Investment Portfolio, not summed	14,265	0.07%	-4,555	Jun 30, 2026	Master Investment Portfolio, not summed
2	Stein Todd J Insider CIK 1747745 · Oct 1, 2026 Director, issuer-wide	1,152,871	5.51%	+2,383	Oct 1, 2026	Director, issuer-wide
3	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,148,579	5.49%	-113,000	Jun 30, 2026	carried, not yet filed for the newest quarter
4	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	872,359	4.17%	+12,829	Jun 30, 2026	carried, not yet filed for the newest quarter
5	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Sep 30, 2026	730,501	3.49%	+12,885	Sep 30, 2026
5.1	U.S. Targeted Value Portfolio Fund S000000970 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	111,365	0.53%	-28,624	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
5.2	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	91,838	0.44%	+1,397	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
5.3	Dimensional U.S. Targeted Value ETF Fund S000070901 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	81,753	0.39%	+25,759	Jul 31, 2026	Dimensional ETF Trust, not summed
5.4	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	71,804	0.34%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
5.5	U.S. SMALL CAP VALUE PORTFOLIO Fund S000000987 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	57,663	0.28%	+2,061	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
6	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	615,117	2.94%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
7	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Sep 30, 2026	584,893	2.79%	-10,949	Sep 30, 2026
8	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	471,584	2.25%	+9,794	Jun 30, 2026	carried, not yet filed for the newest quarter
8.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	8,300	0.04%	+1,500	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
8.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	432	0.00%	0	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
8.3	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	65	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
9	HighTower Advisors, LLC 13F CIK 1462245 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	339,892	1.62%	-41,923	Jun 30, 2026	carried, not yet filed for the newest quarter
10	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	287,617	1.37%	+115,560	Jun 30, 2026	carried, not yet filed for the newest quarter
11	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	281,980	1.35%	+62,399	Jun 30, 2026	carried, not yet filed for the newest quarter
11.1	Goldman Sachs Small Cap Value Insights Fund Fund S000014929 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	74,620	0.36%	—	Jul 31, 2026	Goldman Sachs Trust, not summed
11.2	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Aug 31, 2026 GOLDMAN SACHS TRUST, not summed	39,693	0.19%	+12,998	Aug 31, 2026	GOLDMAN SACHS TRUST, not summed
11.3	Goldman Sachs Small Cap Equity Insights Fund Fund S000009329 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	22,076	0.11%	—	Jul 31, 2026	Goldman Sachs Trust, not summed
11.4	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · Aug 31, 2026 Goldman Sachs ETF Trust, not summed	1,975	0.01%	-15,000	Aug 31, 2026	Goldman Sachs ETF Trust, not summed
12	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	273,278	1.31%	+8,250	Jun 30, 2026	carried, not yet filed for the newest quarter
13	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	230,527	1.10%	+5,318	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
14	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Sep 30, 2026	229,780	1.10%	-4,332	Sep 30, 2026
15	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	222,895	1.07%	+6,352	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	9,374	0.04%	+1,014	Jun 30, 2026	Northern Funds, not summed
15.2	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	8,689	0.04%	-413	Jun 30, 2026	Northern Funds, not summed
16	Uniplan Investment Counsel, Inc. 13F CIK 1520710 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	215,764	1.03%	+6,162	Jun 30, 2026	carried, not yet filed for the newest quarter
17	CSM Advisors, LLC 13F CIK 1863523 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	212,910	1.02%	-220	Jun 30, 2026	carried, not yet filed for the newest quarter
18	UNITED CAPITAL FINANCIAL ADVISORS, LLC 13F CIK 1463217 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	194,815	0.93%	+90,092	Jun 30, 2026	carried, not yet filed for the newest quarter
19	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	183,447	0.88%	+165,672	Jun 30, 2026	carried, not yet filed for the newest quarter
20	KELLY VINCENT D Insider CIK 1253133 · May 12, 2026 Director, President & CEO, issuer-wide	167,565	0.80%	+10,000	May 12, 2026	Director, President & CEO, issuer-wide
21	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	166,575	0.80%	+6,749	Jun 30, 2026	carried, not yet filed for the newest quarter
22	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	160,312	0.77%	+43,502	Jun 30, 2026	carried, not yet filed for the newest quarter
23	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	150,124	0.72%	+64,300	Jun 30, 2026	carried, not yet filed for the newest quarter
24	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	136,898	0.65%	+7,650	Jun 30, 2026	carried, not yet filed for the newest quarter
25	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	130,163	0.62%	+40,712	Jun 30, 2026	carried, not yet filed for the newest quarter
26	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · Aug 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	120,418	0.58%	+15,628	Aug 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
27	WisdomTree U.S. SmallCap Dividend Fund Fund S000012394 · Registered fund · Jun 30, 2026 WisdomTree Trust, not summed	116,279	0.56%	-540	Jun 30, 2026	WisdomTree Trust, not summed
28	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	107,475	0.51%	-37,376	Jun 30, 2026	carried, not yet filed for the newest quarter
29	PANAGORA ASSET MANAGEMENT INC 13F CIK 883677 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	93,030	0.44%	+14,735	Jun 30, 2026	carried, not yet filed for the newest quarter
30	North Star Dividend Fund Fund S000040441 · Registered fund · Aug 31, 2026 NORTHERN LIGHTS FUND TRUST II, not summed	90,000	0.43%	0	Aug 31, 2026	NORTHERN LIGHTS FUND TRUST II, not summed
31	North Star Investment Management Corp. 13F CIK 1342857 · Investment adviser · Sep 30, 2026	90,000	0.43%	0	Sep 30, 2026
32	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	89,161	0.43%	+74,132	Jun 30, 2026	carried, not yet filed for the newest quarter
32.1	Fidelity Small Cap Index Fund Fund S000033638 · Registered fund · Jul 31, 2026 Fidelity Salem Street Trust, not summed	255,324	1.22%	+35,448	Jul 31, 2026	Fidelity Salem Street Trust, not summed
32.2	Fidelity Extended Market Index Fund Fund S000006021 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	116,957	0.56%	-3,347	Aug 31, 2026	Fidelity Concord Street Trust, not summed
32.3	Fidelity Total Market Index Fund Fund S000006026 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	41,047	0.20%	-32	Aug 31, 2026	Fidelity Concord Street Trust, not summed
32.4	Fidelity Series Total Market Index Fund Fund S000065248 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	33,848	0.16%	+1,250	Aug 31, 2026	Fidelity Concord Street Trust, not summed
32.5	Fidelity Small Cap Value Index Fund Fund S000065751 · Registered fund · Jun 30, 2026 Fidelity Salem Street Trust, not summed	32,587	0.16%	+5,124	Jun 30, 2026	Fidelity Salem Street Trust, not summed
33	VANGUARD COMMUNICATION SERVICES INDEX FUND Fund S000004443 · Registered fund · Aug 31, 2026 VANGUARD WORLD FUND, not summed	75,736	0.36%	-5,932	Aug 31, 2026	VANGUARD WORLD FUND, not summed
34	FIDELIS CAPITAL PARTNERS, LLC 13F CIK 1962755 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	75,072	0.36%	+71	Jun 30, 2026	carried, not yet filed for the newest quarter
35	WALLACE MICHAEL W Insider CIK 1070123 · Mar 4, 2026 Chief Operating Officer, issuer-wide	74,034	0.35%	+21,785	Mar 4, 2026	Chief Operating Officer, issuer-wide
36	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	69,857	0.33%	+13,822	Jun 30, 2026	carried, not yet filed for the newest quarter
36.1	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	53,028	0.25%	+7,123	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
36.2	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	14,849	0.07%	+5,000	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
37	FIRST TRUST ADVISORS LP 13F CIK 1125816 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	69,321	0.33%	+3,823	Jun 30, 2026	carried, not yet filed for the newest quarter
37.1	First Trust Dow Jones Select MicroCap Index Fund Fund S000010772 · Registered fund · Jun 30, 2026 First Trust Exchange-Traded Fund, not summed	69,321	0.33%	+3,823	Jun 30, 2026	First Trust Exchange-Traded Fund, not summed
38	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	65,653	0.31%	-4,040	Jun 30, 2026	carried, not yet filed for the newest quarter
39	Quantinno Capital Management LP 13F CIK 1759654 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	63,600	0.30%	+37,450	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Man Group plc 13F CIK 1637460 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	57,712	0.28%	+9,387	Jun 30, 2026	carried, not yet filed for the newest quarter
41	VICTORY CAPITAL MANAGEMENT INC 13F CIK 1040188 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	57,510	0.27%	+14,694	Jun 30, 2026	carried, not yet filed for the newest quarter
41.1	VictoryShares Small Cap Free Cash Flow ETF Fund S000080690 · Registered fund · Jun 30, 2026 Victory Portfolios II, not summed	55,182	0.26%	+14,694	Jun 30, 2026	Victory Portfolios II, not summed
41.2	Victory Extended Market Index Fund Fund S000012941 · Registered fund · Jul 31, 2026 Victory Portfolios III, not summed	2,359	0.01%	+31	Jul 31, 2026	Victory Portfolios III, not summed
42	Keebeck Wealth Management 13F CIK 1803675 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	50,000	0.24%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
43	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	49,408	0.24%	-23,928	Jun 30, 2026	carried, not yet filed for the newest quarter
43.1	Nuveen Equity Index Fund Fund S000005360 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	30,616	0.15%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
43.2	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	15,914	0.08%	-8,105	Jul 31, 2026	TIAA-CREF Funds, not summed
43.3	TIAA Separate Account VA-1 - Stock Index Account Fund S000005098 · Registered fund · Jun 30, 2026 TIAA Separate Account VA-1, not summed	917	0.00%	0	Jun 30, 2026	TIAA Separate Account VA-1, not summed
43.4	Nuveen Life Stock Index Fund Fund S000005094 · Registered fund · Jun 30, 2026 TIAA-CREF Life Funds, not summed	319	0.00%	0	Jun 30, 2026	TIAA-CREF Life Funds, not summed
44	Byrne Barbara Peterson Insider CIK 1800447 · Oct 1, 2026 Director, issuer-wide	48,776	0.23%	+2,383	Oct 1, 2026	Director, issuer-wide
45	Campbell & CO Investment Adviser LLC 13F CIK 1353570 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	48,083	0.23%	-2,786	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Numerai GP LLC 13F CIK 1668527 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	46,223	0.22%	-22,793	Jun 30, 2026	carried, not yet filed for the newest quarter
47	Russell Investments Group, Ltd. 13F CIK 1692234 · Unknown · Sep 30, 2026	45,864	0.22%	+7,063	Sep 30, 2026
48	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	44,987	0.21%	+1,855	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Atom Investors LP 13F CIK 1738902 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	44,289	0.21%	+44,289	Jun 30, 2026	carried, not yet filed for the newest quarter
50	AMERICAN CENTURY COMPANIES INC 13F CIK 748054 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	42,490	0.20%	-878	Jun 30, 2026	carried, not yet filed for the newest quarter

29 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 221 holders

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Key facts CIK 1289945 CUSIP 84863T106 13F (30d) 49 filings 37 filers Visit website Investor relations