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 Q1 2016?

129 institutional investors reported SPOK - Spok Holdings, Inc - Common Stock for Q1 2016. Use the holders table for investor-level position and value details.

Spok Holdings, Inc - Common Stock (SPOK)

CUSIP: 84863T106

Q1 2016 13F Holders as of 31 Mar 2016

Type / Class: Equity / Common Stock
Shares outstanding: 20,597,466
Total 13F shares: 17,134,910
Share change: +240,807
Total reported value: $299,932,394
Price per share: $17.51
Number of holders: 129
Value change: +$4,015,272
Number of buys: 71
Number of sells: 42

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: Q2 2016
Previous quarter: Q4 2015

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 Fund Advisors	13F	Company	11%	2,280,910	$41,786,000	—	31 Dec 2015	13F
VANGUARD GROUP INC	13F	Company	8.7%	1,784,799	$32,697,000	—	31 Dec 2015	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	8.1%	1,677,700	$30,735,000	—	31 Dec 2015	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	6.1%	1,247,980	$22,863,000	—	31 Dec 2015	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	4.8%	996,607	$18,257,000	—	31 Dec 2015	13F
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	13F	Company	3.7%	768,151	$14,072,534	—	31 Dec 2015	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	3.6%	749,146	$13,724,000	—	31 Dec 2015	13F
Numeric Investors LLC	13F	Company	3%	624,432	$11,440,000	—	31 Dec 2015	13F
STATE STREET CORP	13F	Company	2.8%	567,421	$10,393,000	—	31 Dec 2015	13F
Bank of New York Mellon Corp	13F	Company	2.1%	436,735	$8,002,000	—	31 Dec 2015	13F
LSV ASSET MANAGEMENT	13F	Company	1.5%	316,273	$5,794,000	—	31 Dec 2015	13F
NORTHERN TRUST CORP	13F	Company	1.5%	315,887	$5,787,000	—	31 Dec 2015	13F
O'SHAUGHNESSY ASSET MANAGEMENT, LLC	13F	Company	1.4%	296,094	$5,424,000	—	31 Dec 2015	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	1.3%	260,199	$4,767,000	—	31 Dec 2015	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	1.1%	230,164	$4,217,000	—	31 Dec 2015	13F
Invesco Ltd.	13F	Company	0.99%	204,239	$3,742,000	—	31 Dec 2015	13F
MORGAN STANLEY	13F	Company	0.9%	184,443	$3,378,000	—	31 Dec 2015	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.82%	169,715	$3,109,000	—	31 Dec 2015	13F
FIRST TRUST ADVISORS LP	13F	Company	0.8%	165,424	$3,031,000	—	31 Dec 2015	13F
HighTower Advisors, LLC	13F	Company	0.78%	160,322	$2,934,000	—	31 Dec 2015	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.68%	139,233	$2,551,000	—	31 Dec 2015	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.64%	132,235	$2,422,000	—	31 Dec 2015	13F
JPMORGAN CHASE & CO	13F	Company	0.64%	131,188	$2,403,000	—	31 Dec 2015	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.59%	121,735	$2,231,000	—	31 Dec 2015	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.56%	114,455	$2,097,000	—	31 Dec 2015	13F
Piermont Capital Management Inc.	13F	Company	0.54%	111,409	$2,041,000	—	31 Dec 2015	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.54%	111,217	$2,037,000	—	31 Dec 2015	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.52%	108,016	$1,979,000	—	31 Dec 2015	13F
QS Investors, LLC	13F	Company	0.48%	98,800	$1,810,000	—	31 Dec 2015	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.46%	94,025	$1,723,000	—	31 Dec 2015	13F
BlackRock Investment Management, LLC	13F	Company	0.45%	93,485	$1,713,000	—	31 Dec 2015	13F
Connor, Clark & Lunn Investment Management Ltd.	13F	Company	0.44%	89,750	$1,644,000	—	31 Dec 2015	13F
York State Teachers Retirement System New	13F	Individual	0.41%	84,839	$1,554,000	—	31 Dec 2015	13F
Foundry Partners, LLC	13F	Company	0.4%	82,689	$1,515,000	—	31 Dec 2015	13F
ROYAL BANK OF CANADA	13F	Company	0.39%	80,973	$1,484,000	—	31 Dec 2015	13F
SYSTEMATIC FINANCIAL MANAGEMENT LP	13F	Company	0.39%	80,203	$1,469,000	—	31 Dec 2015	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.34%	70,732	$1,296,000	—	31 Dec 2015	13F
Alambic Investment Management, L.P.	13F	Company	0.33%	67,953	$1,245,000	—	31 Dec 2015	13F
FIRST CITIZENS BANK & TRUST CO	13F	Company	0.31%	64,099	$1,174,000	—	31 Dec 2015	13F
DEUTSCHE BANK AG\	13F	Company	0.29%	59,279	$1,084,000	—	31 Dec 2015	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.27%	56,100	$1,028,000	—	31 Dec 2015	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.26%	54,182	$993,000	—	31 Dec 2015	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	0.26%	53,838	$986,000	—	31 Dec 2015	13F
Nationwide Fund Advisors	13F	Company	0.25%	51,741	$948,000	—	31 Dec 2015	13F
ROYCE & ASSOCIATES LP	13F	Company	0.23%	46,811	$858,000	—	31 Dec 2015	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.2%	40,313	$739,000	—	31 Dec 2015	13F
STRS OHIO	13F	Company	0.2%	40,300	$738,000	—	31 Dec 2015	13F
Concert Wealth Management Inc.	13F	Company	0.18%	38,071	$702,000	—	31 Dec 2015	13F
RHUMBLINE ADVISERS	13F	Company	0.18%	36,707	$672,000	—	31 Dec 2015	13F
LOS ANGELES CAPITAL MANAGEMENT LLC	13F	Company	0.17%	35,900	$658,000	—	31 Dec 2015	13F

Institutional Holders of Spok Holdings, Inc - Common Stock (SPOK) as of Q1 2016

As of 31 Mar 2016, Spok Holdings, Inc - Common Stock (SPOK) was held by 129 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 17,134,910 shares. The largest 10 holders included BlackRock Fund Advisors, VANGUARD GROUP INC, RENAISSANCE TECHNOLOGIES LLC, DIMENSIONAL FUND ADVISORS LP, PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC., BlackRock Institutional Trust Company, N.A., WELLINGTON MANAGEMENT GROUP LLP, STATE STREET CORP, NUMERIC INVESTORS LLC, and Bank of New York Mellon Corp. This page lists 129 institutional shareholders reporting positions in this security for the Q1 2016 filing period.

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

Compare Q1 2016 vs Q4 2015 Across Filers

Q4 2015 holders

126

Q1 2016 holders

129

Holder diff

Investor	Q4 2015 Shares	Q1 2016 Shares	Share Diff	Share Chg %	Q4 2015 Value $	Q1 2016 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.