Spok Holdings, Inc
Total Trades
57
Buys
33
Sells
24
Largest Trade
$1M+
Insiders
9
Institutional Funds
96
Inst. Value
$1M+
Activist Filings
14
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Hyun Randy | Director | BUY | $50K–$100K | 10K | $7.04 | Aug 22, 2022 |
| Rice Calvin | CFO | BUY | $15K–$50K | 3K | $7.08 | Aug 22, 2022 |
| Stein Todd J | Director | BUY | $100K–$500K | 18K | $6.99 | Aug 18, 2022 |
| Stein Todd J | Director | BUY | $500K+ | 85K | $7.02 | May 4, 2022 |
| WALLACE MICHAEL W | COO/CFO | BUY | $15K–$50K | 2K | $7.19 | May 3, 2022 |
| ORISTANO MATTHEW | Director | BUY | $100K–$500K | 15K | $7.10 | May 3, 2022 |
| KELLY VINCENT D | President & CEO | BUY | $15K–$50K | 5K | $7.04 | May 2, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 96 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 1.2M | $1M+ | SH |
| VANGUARD GROUP INC | 1.1M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 664K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 532K | $1M+ | SH |
| STATE STREET CORP | 447K | $1M+ | SH |
| HighTower Advisors, LLC | 382K | $1M+ | SH |
| ACADIAN ASSET MANAGEMENT LLC | 322K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 285K | $1M+ | SH |
| CSM Advisors, LLC | 263K | $1M+ | SH |
| Connor, Clark & Lunn Investment Management Ltd. | 197K | $1M+ | SH |
| Bank of New York Mellon Corp | 168K | $1M+ | SH |
| Uniplan Investment Counsel, Inc. | 161K | $1M+ | SH |
| North Star Investment Management Corp. | 122K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 119K | $1M+ | SH |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 102K | $1M+ | SH |
| PANAGORA ASSET MANAGEMENT INC | 93K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 65K | $500K+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 61K | $500K+ | SH |
| HSBC HOLDINGS PLC | 60K | $500K+ | SH |
| Campbell & CO Investment Adviser LLC | 49K | $500K+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Aug 13, 2025
5.1%
1.1M shares
SC 13G · Jul 29, 2025
5.6%
1.1M shares
SC 13G/A · Apr 30, 2025
5.0%
1.0M shares
SC 13G/A · Nov 12, 2024
5.2%
1.1M shares
SC 13G/A · Nov 4, 2024
5.2%
1.1M shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 13, 2024
4.9%
974K shares
SC 13G · Jan 26, 2024
7.1%
1.4M shares
SC 13G/A · Feb 14, 2023
0.0%
0 shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 13, 2023
6.6%
1.3M shares
Dimensional Fund Advisors LP 30-0447847
SC 13G/A · Feb 10, 2023
5.4%
1.1M shares
SC 13D/A · Jun 29, 2022
54.9%
967K shares
SC 13G · Feb 14, 2022
8.9%
1.7M shares
SC 13G · Feb 14, 2022
8.9%
1.7M shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 11, 2022
6.2%
1.2M shares