SPOK HLDGS INC (SPOK): Institutional Ownership
Hedge funds and institutional managers reporting a position in SPOK · Communication Services. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
12
13F filers
Aggregate Value
$18.0M
Across holders
Last Price
$10.65
2026-06-26
Sector
Communication Services
GICS
Holder activity5 new2 added5 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 1.26M | $13.8M | 76.5% | 0.0% | Added | +$164K | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 172K | $1.9M | 10.4% | 0.0% | Reduced | $-66K | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 36K | $619K | 3.4% | 0.0% | New | — | Q3 2025 |
| Man Group plc CIK 0001637460 | Hedge Fund | 48K | $527K | 2.9% | 0.0% | Added | +$239K | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 23K | $403K | 2.2% | 0.0% | New | — | Q3 2025 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 19K | $253K | 1.4% | 0.0% | New | — | Q4 2025 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 20K | $217K | 1.2% | 0.0% | Reduced | $-465K | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 12K | $174K | 1.0% | 0.0% | New | — | Q3 2023 |
| Grantham, Mayo, Van Otterloo & Co. LLC CIK 0001352662 | Institutional Manager | 10K | $114K | 0.6% | 0.0% | Reduced | $-20K | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 4K | $43K | 0.2% | 0.0% | Reduced | $-160K | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 116 | $1K | 0.0% | 0.0% | Reduced | $-173K | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 3 | $33 | 0.0% | 0.0% | New | — | Q1 2026 |
Added
Hedge Fund
$13.8M· 76.5% of total· 0.0% port· 1.26M sh· +$164K QoQ· Q1 2026
Reduced
Hedge Fund
$1.9M· 10.4% of total· 0.0% port· 172K sh· $-66K QoQ· Q1 2026
New
Hedge Fund
$619K· 3.4% of total· 0.0% port· 36K sh· — QoQ· Q3 2025
Added
Hedge Fund
$527K· 2.9% of total· 0.0% port· 48K sh· +$239K QoQ· Q1 2026
New
Hedge Fund
$403K· 2.2% of total· 0.0% port· 23K sh· — QoQ· Q3 2025
New
Hedge Fund
$253K· 1.4% of total· 0.0% port· 19K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$217K· 1.2% of total· 0.0% port· 20K sh· $-465K QoQ· Q1 2026
New
Hedge Fund
$174K· 1.0% of total· 0.0% port· 12K sh· — QoQ· Q3 2023
Reduced
Institutional Manager
$114K· 0.6% of total· 0.0% port· 10K sh· $-20K QoQ· Q1 2026
Reduced
Hedge Fund
$43K· 0.2% of total· 0.0% port· 4K sh· $-160K QoQ· Q1 2026
Reduced
Hedge Fund
$1K· 0.0% of total· 0.0% port· 116 sh· $-173K QoQ· Q1 2026
New
Hedge Fund
$33· 0.0% of total· 0.0% port· 3 sh· — QoQ· Q1 2026