What does CUSIP 84863T106 represent in this 13F holders report?

CUSIP 84863T106 is the security identifier for SPOK - Spok Holdings, Inc - Common Stock used to aggregate holder disclosures.

How many institutions held SPOK - Spok Holdings, Inc - Common Stock in Q2 2017?

115 institutional investors reported SPOK - Spok Holdings, Inc - Common Stock for Q2 2017. Use the holders table for investor-level position and value details.

Spok Holdings, Inc - Common Stock (SPOK)

CUSIP: 84863T106

Q2 2017 13F Holders as of 30 Jun 2017

Type / Class: Equity / Common Stock
Shares outstanding: 20,597,466
Total 13F shares: 17,457,624
Share change: -543,241
Total reported value: $308,982,880
Price per share: $17.70
Number of holders: 115
Value change: -$10,466,268
Number of buys: 45
Number of sells: 64

Quarterly Holders Quick Answers

What is CUSIP 84863T106?
CUSIP 84863T106 identifies SPOK - Spok Holdings, Inc - Common Stock in SEC institutional holdings data.

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Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q3 2017
Previous quarter: Q1 2017

Recent filing periods for CUSIP 84863T106:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of SPOK - Spok Holdings, Inc - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock Finance, Inc.	13F	Company	18%	3,794,455	$72,094,000	—	31 Mar 2017	13F
VANGUARD GROUP INC	13F	Company	12%	2,384,912	$45,313,000	—	31 Mar 2017	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	7.8%	1,607,959	$30,551,000	—	31 Mar 2017	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	7.5%	1,553,500	$29,517,000	—	31 Mar 2017	13F
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	13F	Company	4.4%	898,062	$17,063,000	—	31 Mar 2017	13F
STATE STREET CORP	13F	Company	3.1%	648,035	$12,317,000	—	31 Mar 2017	13F
Numeric Investors LLC	13F	Company	2.7%	562,678	$10,691,000	—	31 Mar 2017	13F
Bank of New York Mellon Corp	13F	Company	2.7%	547,776	$10,409,000	—	31 Mar 2017	13F
O'SHAUGHNESSY ASSET MANAGEMENT, LLC	13F	Company	1.5%	304,689	$5,789,000	—	31 Mar 2017	13F
MORGAN STANLEY	13F	Company	1.4%	289,323	$5,497,000	—	31 Mar 2017	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	1.4%	286,078	$5,435,000	—	31 Mar 2017	13F
NORTHERN TRUST CORP	13F	Company	1.4%	278,690	$5,295,000	—	31 Mar 2017	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.3%	267,399	$5,080,000	—	31 Mar 2017	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	1.1%	230,214	$4,374,000	—	31 Mar 2017	13F
LSV ASSET MANAGEMENT	13F	Company	0.95%	196,579	$3,735,000	—	31 Mar 2017	13F
Invesco Ltd.	13F	Company	0.88%	182,076	$3,459,000	—	31 Mar 2017	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.8%	164,658	$3,129,000	—	31 Mar 2017	13F
HighTower Advisors, LLC	13F	Company	0.75%	154,105	$2,939,000	—	31 Mar 2017	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.67%	137,996	$2,622,000	—	31 Mar 2017	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.67%	137,358	$2,610,000	—	31 Mar 2017	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.64%	132,297	$2,514,000	—	31 Mar 2017	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.6%	124,063	$2,357,000	—	31 Mar 2017	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.58%	119,571	$2,272,000	—	31 Mar 2017	13F
CREDIT SUISSE AG/	13F	Company	0.54%	112,039	$2,128,000	—	31 Mar 2017	13F
JPMORGAN CHASE & CO	13F	Company	0.51%	104,089	$1,977,000	—	31 Mar 2017	13F
ACADIAN ASSET MANAGEMENT LLC	13F	Company	0.47%	97,452	$1,850,000	—	31 Mar 2017	13F
Foundry Partners, LLC	13F	Company	0.46%	94,755	$1,800,000	—	31 Mar 2017	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.44%	91,148	$1,732,000	—	31 Mar 2017	13F
Piermont Capital Management Inc.	13F	Company	0.44%	91,129	$1,731,000	—	31 Mar 2017	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.43%	87,600	$1,664,000	—	31 Mar 2017	13F
Aperio Group, LLC	13F	Company	0.42%	86,394	$1,641,000	—	31 Mar 2017	13F
York State Teachers Retirement System New	13F	Individual	0.38%	78,339	$1,488,000	—	31 Mar 2017	13F
Russell Investments Group, Ltd.	13F	Company	0.38%	78,228	$1,486,000	—	31 Mar 2017	13F
Euclidean Technologies Management, LLC	13F	Company	0.36%	74,989	$1,425,000	—	31 Mar 2017	13F
Alambic Investment Management, L.P.	13F	Company	0.35%	73,091	$1,389,000	—	31 Mar 2017	13F
Spark Investment Management LLC	13F	Company	0.35%	73,100	$1,388,000	—	31 Mar 2017	13F
Connor, Clark & Lunn Investment Management Ltd.	13F	Company	0.35%	71,650	$1,361,000	—	31 Mar 2017	13F
MARTINGALE ASSET MANAGEMENT L P	13F	Company	0.34%	69,808	$1,327,000	—	31 Mar 2017	13F
ROYAL BANK OF CANADA	13F	Company	0.34%	69,116	$1,312,000	—	31 Mar 2017	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.3%	62,719	$1,192,000	—	31 Mar 2017	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.3%	62,447	$1,186,000	—	31 Mar 2017	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.29%	59,875	$1,136,000	—	31 Mar 2017	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	0.29%	58,987	$1,121,000	—	31 Mar 2017	13F
Nationwide Fund Advisors	13F	Company	0.28%	56,972	$1,082,000	—	31 Mar 2017	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.26%	54,073	$1,027,000	—	31 Mar 2017	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.26%	52,603	$999,000	—	31 Mar 2017	13F
U S GLOBAL INVESTORS INC	13F	Company	0.25%	52,185	$992,000	—	31 Mar 2017	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.24%	49,049	$932,000	—	31 Mar 2017	13F
LOS ANGELES CAPITAL MANAGEMENT LLC	13F	Company	0.22%	45,400	$863,000	—	31 Mar 2017	13F
RHUMBLINE ADVISERS	13F	Company	0.21%	44,282	$841,000	—	31 Mar 2017	13F

Institutional Holders of Spok Holdings, Inc - Common Stock (SPOK) as of Q2 2017

As of 30 Jun 2017, Spok Holdings, Inc - Common Stock (SPOK) was held by 115 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 17,457,624 shares. The largest 10 holders included BlackRock Inc., VANGUARD GROUP INC, DIMENSIONAL FUND ADVISORS LP, RENAISSANCE TECHNOLOGIES LLC, PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC., Numeric Investors LLC, STATE STREET CORP, Bank of New York Mellon Corp, MORGAN STANLEY, and NORTHERN TRUST CORP. This page lists 115 institutional shareholders reporting positions in this security for the Q2 2017 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q2 2017 vs Q1 2017 Across Filers

Q1 2017 holders

122

Q2 2017 holders

115

Holder diff

-7

Investor	Q1 2017 Shares	Q2 2017 Shares	Share Diff	Share Chg %	Q1 2017 Value $	Q2 2017 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.