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 2017?

122 institutional investors reported SPOK - Spok Holdings, Inc - Common Stock for Q1 2017. Use the holders table for investor-level position and value details.

Spok Holdings, Inc - Common Stock (SPOK)

CUSIP: 84863T106

Q1 2017 13F Holders as of 31 Mar 2017

Type / Class: Equity / Common Stock
Shares outstanding: 20,597,466
Total 13F shares: 18,000,865
Share change: +4,111,878
Total reported value: $342,024,621
Price per share: $19.00
Number of holders: 122
Value change: +$77,791,621
Number of buys: 67
Number of sells: 39

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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Explore More Reporting Periods

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

Newer quarter: Q2 2017
Previous quarter: Q4 2016

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	13%	2,618,570	$54,335,000	—	31 Dec 2016	13F
VANGUARD GROUP INC	13F	Company	11%	2,199,556	$45,641,000	—	31 Dec 2016	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	7.7%	1,575,800	$32,698,000	—	31 Dec 2016	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	7.2%	1,486,593	$30,847,000	—	31 Dec 2016	13F
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.	13F	Company	4.3%	886,512	$18,395,000	—	31 Dec 2016	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	3.3%	681,565	$14,142,000	—	31 Dec 2016	13F
STATE STREET CORP	13F	Company	3%	623,498	$12,934,000	—	31 Dec 2016	13F
Bank of New York Mellon Corp	13F	Company	2.7%	547,925	$11,369,000	—	31 Dec 2016	13F
Numeric Investors LLC	13F	Company	2.4%	494,620	$10,263,000	—	31 Dec 2016	13F
O'SHAUGHNESSY ASSET MANAGEMENT, LLC	13F	Company	1.7%	350,855	$7,280,000	—	31 Dec 2016	13F
NORTHERN TRUST CORP	13F	Company	1.3%	274,468	$5,696,000	—	31 Dec 2016	13F
MORGAN STANLEY	13F	Company	1.3%	269,187	$5,585,000	—	31 Dec 2016	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	1.2%	251,981	$5,229,000	—	31 Dec 2016	13F
LSV ASSET MANAGEMENT	13F	Company	1.2%	246,995	$5,125,000	—	31 Dec 2016	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.2%	242,524	$5,031,000	—	31 Dec 2016	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	1.1%	229,964	$4,772,000	—	31 Dec 2016	13F
MACKENZIE FINANCIAL CORP	13F	Company	0.82%	168,032	$3,487,000	—	31 Dec 2016	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.77%	159,224	$3,304,000	—	31 Dec 2016	13F
HighTower Advisors, LLC	13F	Company	0.73%	150,305	$3,115,000	—	31 Dec 2016	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.71%	147,106	$3,052,000	—	31 Dec 2016	13F
Invesco Ltd.	13F	Company	0.67%	137,401	$2,851,000	—	31 Dec 2016	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.64%	131,797	$2,736,000	—	31 Dec 2016	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.6%	123,092	$2,555,000	—	31 Dec 2016	13F
JPMORGAN CHASE & CO	13F	Company	0.57%	118,018	$2,448,000	—	31 Dec 2016	13F
BlackRock Investment Management, LLC	13F	Company	0.57%	117,836	$2,445,000	—	31 Dec 2016	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.55%	113,656	$2,358,000	—	31 Dec 2016	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.52%	106,423	$2,208,000	—	31 Dec 2016	13F
CREDIT SUISSE AG/	13F	Company	0.51%	105,105	$2,180,000	—	31 Dec 2016	13F
Piermont Capital Management Inc.	13F	Company	0.49%	100,659	$2,089,000	—	31 Dec 2016	13F
QS Investors, LLC	13F	Company	0.48%	98,800	$2,050,000	—	31 Dec 2016	13F
Foundry Partners, LLC	13F	Company	0.46%	95,205	$1,976,000	—	31 Dec 2016	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.46%	94,224	$1,955,000	—	31 Dec 2016	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.45%	92,516	$1,920,000	—	31 Dec 2016	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.44%	89,700	$1,861,000	—	31 Dec 2016	13F
Spark Investment Management LLC	13F	Company	0.42%	86,400	$1,792,000	—	31 Dec 2016	13F
York State Teachers Retirement System New	13F	Individual	0.39%	80,039	$1,661,000	—	31 Dec 2016	13F
Alambic Investment Management, L.P.	13F	Company	0.39%	79,720	$1,654,000	—	31 Dec 2016	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	0.38%	79,145	$1,642,000	—	31 Dec 2016	13F
Russell Investments Group, Ltd.	13F	Company	0.37%	77,205	$1,637,000	—	31 Dec 2016	13F
Euclidean Technologies Management, LLC	13F	Company	0.36%	74,989	$1,556,000	—	31 Dec 2016	13F
Connor, Clark & Lunn Investment Management Ltd.	13F	Company	0.35%	71,525	$1,484,000	—	31 Dec 2016	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.35%	71,218	$1,477,000	—	31 Dec 2016	13F
MARTINGALE ASSET MANAGEMENT L P	13F	Company	0.34%	69,808	$1,449,000	—	31 Dec 2016	13F
ACADIAN ASSET MANAGEMENT LLC	13F	Company	0.33%	67,901	$1,408,000	—	31 Dec 2016	13F
Aperio Group, LLC	13F	Company	0.32%	65,482	$1,359,000	—	31 Dec 2016	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.3%	62,447	$1,296,000	—	31 Dec 2016	13F
ROYAL BANK OF CANADA	13F	Company	0.3%	60,916	$1,264,000	—	31 Dec 2016	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.29%	59,520	$1,235,000	—	31 Dec 2016	13F
Nationwide Fund Advisors	13F	Company	0.28%	57,995	$1,203,000	—	31 Dec 2016	13F
BlackRock Group LTD	13F	Company	0.24%	48,680	$1,010,000	—	31 Dec 2016	13F

Institutional Holders of Spok Holdings, Inc - Common Stock (SPOK) as of Q1 2017

As of 31 Mar 2017, Spok Holdings, Inc - Common Stock (SPOK) was held by 122 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 18,000,865 shares. The largest 10 holders included BlackRock Inc., VANGUARD GROUP INC, DIMENSIONAL FUND ADVISORS LP, RENAISSANCE TECHNOLOGIES LLC, PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC., STATE STREET CORP, NUMERIC INVESTORS LLC, Bank of New York Mellon Corp, O'SHAUGHNESSY ASSET MANAGEMENT, LLC, and MORGAN STANLEY. This page lists 122 institutional shareholders reporting positions in this security for the Q1 2017 filing period.

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

Compare Q1 2017 vs Q4 2016 Across Filers

Q4 2016 holders

123

Q1 2017 holders

122

Holder diff

-1

Investor	Q4 2016 Shares	Q1 2017 Shares	Share Diff	Share Chg %	Q4 2016 Value $	Q1 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.