Security key
84863T106
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 9,660,849
- Total 13F value
- $97,880,446
- Share change
- -408,802
- Put/Call ratio
- 5393%
- SEC-reported price per share
- $10.13
- Number of holders
- 82
- Value change
- -$2,050,778
- Number of buys
- 50
- Number of sells
- 31
- Shares outstanding
- 20,597,466
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
82
Top holders
10
SPOK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Spok Holdings, Inc SEC filings
Spok Holdings, Inc company facts
Broader feeds
Reporting periods
Holder history for CUSIP 84863T106
Recent filing periods:
Ownership snapshot
Top reported holders of SPOK - Spok Holdings, Inc - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
RENAISSANCE TECHNOLOGIES LLC
Disclosed value leader
RENAISSANCE TECHNOLOGIES LLC
Comparable rows
15/15
Latest evidence
31 Dec 2022
13F
Lead comparable stake: 6.3%
Showing 1-6 of 15 holder rows.
Quick read
RENAISSANCE TECHNOLOGIES LLC leads the comparable SEC ownership view at 6.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens RENAISSANCE TECHNOLOGIES LLC's linked filing trail.
Comparable ownership
Top 5
RENAISSANCE TECHNOLOGIES LLC
6.3%
DIMENSIONAL FUND ADVISORS LP
5.2%
VANGUARD GROUP INC
4%
Man Group plc
3.2%
Foundry Partners, LLC
2.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
6.3%
|
$10,581,000
1,291,922 shares
|
— | 31 Dec 2022 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
5.2%
|
$8,693,000
1,061,440 shares
|
— | 31 Dec 2022 |
| VANGUARD GROUP INC |
13F
Company
|
4%
|
$6,831,778
834,161 shares
|
— | 31 Dec 2022 |
| Man Group plc |
13F
Company
|
3.2%
|
$5,460,887
666,775 shares
|
— | 31 Dec 2022 |
| Foundry Partners, LLC |
13F
Company
|
2.5%
|
$4,266,000
520,865 shares
|
— | 31 Dec 2022 |
| BlackRock Finance, Inc. |
13F
Company
|
2.2%
|
$3,724,483
454,760 shares
|
— | 31 Dec 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
82
Shares
9,660,849
Rows available
82
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2023 vs Q1 2023 Across Filers
Q1 2023 holders
82
Q1 2023 holders
82
Holder diff
0
| Investor | Q1 2023 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q1 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend