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 2021?

96 institutional investors reported SPOK - Spok Holdings, Inc - Common Stock for Q2 2021. Use the holders table for investor-level position and value details.

Spok Holdings, Inc - Common Stock (SPOK)

CUSIP: 84863T106

Q2 2021 13F Holders as of 30 Jun 2021

Type / Class: Equity / Common Stock
Shares outstanding: 20,597,466
Total 13F shares: 13,512,363
Share change: -385,035
Total reported value: $129,959,490
Put/Call ratio: 226%
Price per share: $9.62
Number of holders: 96
Value change: -$4,203,854
Number of buys: 41
Number of sells: 54

Quarterly Holders Quick Answers

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

Need full ownership history?
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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 2021
Previous quarter: Q1 2021

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	15%	3,085,181	$32,363,000	—	31 Mar 2021	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	7.4%	1,520,962	$15,955,000	—	31 Mar 2021	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	7.2%	1,491,194	$15,643,000	—	31 Mar 2021	13F
VANGUARD GROUP INC	13F	Company	6.2%	1,276,548	$13,391,000	—	31 Mar 2021	13F
STATE STREET CORP	13F	Company	2.7%	566,418	$5,942,000	—	31 Mar 2021	13F
DEPRINCE RACE & ZOLLO INC	13F	Company	2.6%	526,376	$5,522,000	—	31 Mar 2021	13F
JPMORGAN CHASE & CO	13F	Company	2.3%	469,855	$4,929,000	—	31 Mar 2021	13F
Bank of New York Mellon Corp	13F	Company	2%	407,967	$4,279,000	—	31 Mar 2021	13F
TOCQUEVILLE ASSET MANAGEMENT L.P.	13F	Company	1.9%	401,600	$4,213,000	—	31 Mar 2021	13F
Foundry Partners, LLC	13F	Company	1.5%	312,753	$3,281,000	—	31 Mar 2021	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.5%	301,585	$3,163,000	—	31 Mar 2021	13F
Invesco Ltd.	13F	Company	1.1%	233,255	$2,446,000	—	31 Mar 2021	13F
Grantham, Mayo, Van Otterloo & Co. LLC	13F	Company	1.1%	233,178	$2,446,000	—	31 Mar 2021	13F
NORTHERN TRUST CORP	13F	Company	1.1%	222,047	$2,329,000	—	31 Mar 2021	13F
Nuveen Asset Management, LLC	13F	Company	0.96%	197,450	$2,071,000	—	31 Mar 2021	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	0.67%	137,115	$1,438,000	—	31 Mar 2021	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.64%	131,774	$1,382,000	—	31 Mar 2021	13F
BLAIR WILLIAM & CO/IL	13F	Company	0.61%	126,593	$1,328,000	—	31 Mar 2021	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.61%	126,492	$1,327,000	—	31 Mar 2021	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.59%	122,472	$1,285,000	—	31 Mar 2021	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.48%	98,400	$1,032,000	—	31 Mar 2021	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.44%	89,794	$942,000	—	31 Mar 2021	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.43%	88,206	$926,000	—	31 Mar 2021	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.42%	87,107	$913,000	—	31 Mar 2021	13F
MORGAN STANLEY	13F	Company	0.39%	80,541	$845,000	—	31 Mar 2021	13F
Jefferies Group LLC	13F	Company	0.38%	77,500	$812,975	—	31 Mar 2021	13F
Granite Point Capital Management, L.P.	13F	Company	0.36%	75,000	$787,000	—	31 Mar 2021	13F
KENNEDY CAPITAL MANAGEMENT LLC	13F	Company	0.35%	71,326	$748,000	—	31 Mar 2021	13F
D. E. Shaw & Co., Inc.	13F	Company	0.32%	65,738	$689,000	—	31 Mar 2021	13F
RHUMBLINE ADVISERS	13F	Company	0.3%	61,559	$646,000	—	31 Mar 2021	13F
ROYAL BANK OF CANADA	13F	Company	0.27%	54,999	$576,000	—	31 Mar 2021	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.27%	54,859	$576,000	—	31 Mar 2021	13F
BARCLAYS PLC	13F	Company	0.26%	54,136	$568,000	—	31 Mar 2021	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.25%	51,098	$536,000	—	31 Mar 2021	13F
Legal & General Group Plc	13F	Company	0.23%	47,890	$502,000	—	31 Mar 2021	13F
FIRST QUADRANT LLC/CA	13F	Company	0.22%	46,200	$485,000	—	31 Mar 2021	13F
PUBLIC SECTOR PENSION INVESTMENT BOARD	13F	Company	0.22%	45,582	$478,000	—	31 Mar 2021	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	0.21%	42,879	$450,000	—	31 Mar 2021	13F
York State Teachers Retirement System New	13F	Individual	0.21%	42,450	$445,000	—	31 Mar 2021	13F
EXCHANGE TRADED CONCEPTS, LLC	13F	Company	0.19%	39,571	$415,000	—	31 Mar 2021	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.19%	39,087	$410,000	—	31 Mar 2021	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.18%	37,000	$388,000	—	31 Mar 2021	13F
Invenomic Capital Management LP	13F	Company	0.17%	34,192	$359,000	—	31 Mar 2021	13F
STRS OHIO	13F	Company	0.15%	30,400	$318,000	—	31 Mar 2021	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.13%	27,483	$288,000	—	31 Mar 2021	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.13%	26,685	$280,000	—	31 Mar 2021	13F
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	13F	Company	0.13%	26,423	$277,000	—	31 Mar 2021	13F
GSA CAPITAL PARTNERS LLP	13F	Company	0.13%	25,790	$271,000	—	31 Mar 2021	13F
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	13F	Company	0.12%	24,630	$258,000	—	31 Mar 2021	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.11%	23,092	$242,000	—	31 Mar 2021	13F

Institutional Holders of Spok Holdings, Inc - Common Stock (SPOK) as of Q2 2021

As of 30 Jun 2021, Spok Holdings, Inc - Common Stock (SPOK) was held by 96 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 13,512,363 shares. The largest 10 holders included BlackRock Inc., RENAISSANCE TECHNOLOGIES LLC, DEPRINCE RACE & ZOLLO INC, DIMENSIONAL FUND ADVISORS LP, Invesco Ltd., VANGUARD GROUP INC, TOCQUEVILLE ASSET MANAGEMENT L.P., Bank of New York Mellon Corp, STATE STREET CORP, and MILLENNIUM MANAGEMENT LLC. This page lists 96 institutional shareholders reporting positions in this security for the Q2 2021 filing period.

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

Compare Q2 2021 vs Q1 2021 Across Filers

Q1 2021 holders

Q2 2021 holders

Holder diff

Investor	Q1 2021 Shares	Q2 2021 Shares	Share Diff	Share Chg %	Q1 2021 Value $	Q2 2021 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.